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Auto Insurance Glossary

Auto insurance is a contract. Here is the language inside it.

Fifty-five Texas auto insurance terms defined plainly. Agreed Value, A.D.D., UM/UIM, OEM parts, labor rate reimbursement, rental reimbursement, antique vehicle classification, and the rest of the vocabulary every household with assets to protect should understand before signing the policy.

What is auto insurance terminology and why does it matter?

Auto insurance is a contract. The contract is built from defined terms that decide what the carrier pays, when, and how much. Liability limits decide how much the carrier pays when you cause an accident. Agreed Value vs Stated Value vs ACV decides how much you receive on a total loss. OEM vs aftermarket parts decides what gets put back on your vehicle after a repair. Most Texas drivers sign their auto policy without understanding the language inside it. The McDade Auto Insurance Glossary defines 55 terms in plain English so you can read your declarations page line by line and know what you actually own. Every definition is written for Texas households with the specific language of Texas Insurance Code Section 1952.301, Texas Department of Insurance rules, Texas DMV data, and the Houston market context.

Jump to a Letter
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A

Actual Cash Value (ACV)

The depreciated market value of your vehicle at the time of loss. ACV is the standard valuation method on most auto policies and is calculated using Kelley Blue Book, NADA, or comparable sources. On a $40,000 vehicle five years old, ACV may pay $18,000 to $22,000 minus deductible at total loss.

Why It Matters ACV is appropriate for daily drivers. It is the wrong valuation method for classic, exotic, restomod, custom, or appreciating vehicles. A 1967 Mustang fastback worth $85,000 covered under ACV may pay only Kelley Blue Book at total loss, ignoring years of restoration investment.
Charles in Plain English

ACV pays for the depreciation. Agreed Value pays for the rebuild.

Additional Driver Discovery (A.D.D.)

A carrier process that cross-references DMV records, vehicle registrations, address histories, and other public data to identify drivers the carrier believes live at your address. Used by Progressive and other major Texas carriers in 2026 to find drivers not disclosed on the policy.

Why It Matters CBS News reported a Denver case in December 2024 where a homeowner discovered a driver he had never met had been added to his Progressive policy through an A.D.D. search. The industry estimates unidentified drivers cost carriers about $10 billion annually in premium leakage. Carriers are not asking permission. They are matching public records to addresses and acting first.
Charles in Plain English

The carrier knows who lives at your address. The question is whether your policy does too.

Source: CBS News Colorado, Mystery Driver on Progressive Policy (December 2024)

Adjuster

The carrier representative who investigates a claim, estimates the loss, and determines what the policy pays. Adjusters work for the carrier, not for you. Field adjusters inspect vehicles in person. Desk adjusters review documentation remotely. Independent adjusters work as third-party contractors.

Why It Matters The adjuster's estimate is the starting point of every claim conversation. McDade reviews adjuster estimates against current Houston repair market rates and flags gaps before settlement, particularly on luxury vehicles where labor rates and OEM parts matter.

Aftermarket Parts

Replacement parts manufactured by companies other than the original equipment manufacturer. Industry data indicates aftermarket parts cost 20% to 50% less than OEM. Texas Insurance Code Section 1952.301 governs aftermarket disclosure requirements and OEM preferences for vehicles owned 36 months or less.

Why It Matters The cost savings flow to the carrier. The fit, finish, and structural integrity differences can flow to you, particularly on luxury vehicles. The John Eagle Collision Center case resulted in a $31.5M jury award after improper non-OEM repair on a Honda Fit roof contributed to severe injuries.
Charles in Plain English

The body shop you trusted is being told what to put back on your car. The question is whether you signed up for that.

Source: Texas Insurance Code Section 1952.301

Agreed Value

A valuation method where you and the carrier agree to a vehicle value in writing before the policy is issued. Locked in for the policy term, with no depreciation and no fall-back to ACV. On a covered total loss, Agreed Value pays the full agreed amount.

Why It Matters For high-end clients with classic, exotic, restomod, custom, modified, or appreciating vehicles, Agreed Value is the only valuation method that does what most people assume Stated Value does. Specialty carriers like Hagerty, Grundy, and American Modern offer Agreed Value as standard.
Charles in Plain English

Stated Value sounds like a promise. Agreed Value is one.

Antique Vehicle

Per Texas DMV Form VTR-54, a vehicle with a frame, body, and motor at least 25 years old, used solely for exhibition, club activities, parades, and other functions of public interest, plus occasional personal use. Antique-plated vehicles in Texas pay $50 for five-year registration and are exempt from annual safety inspections, with strict use restrictions.

Why It Matters The classification chosen at registration directly determines what insurance form is appropriate. Putting an antique-plated 1965 Mustang on a standard auto policy with daily-driver mileage assumptions is a structural mismatch that costs the client both ways: more premium up front, less certainty at claim time.

Source: Texas DMV Form VTR-54, Application for Antique License Plate

At-Fault Accident

An accident in which you are determined to be 51% or more responsible. Texas operates on a modified comparative fault rule: at 51%+ fault, you are barred from recovering damages from other parties. At-fault accidents typically trigger premium surcharges and affect underwriting for 3 to 5 years.

Why It Matters One at-fault accident can raise premium by 40% to 80% at most carriers. Multiple at-fault accidents in 36 months trigger non-renewal at most carriers and surcharges at the few that retain the risk.
B

Bodily Injury Liability

The portion of your auto liability coverage that pays for injuries you cause to others. Texas minimum is $30,000 per person, $60,000 per accident. High-net-worth households typically need $100,000 to $500,000 limits plus a personal umbrella policy of $1M to $5M.

Why It Matters A serious multi-vehicle accident with multiple injured parties can exhaust 30/60/25 in a single hospital visit. If your liability limits run out, you are personally responsible for the difference and the other driver can sue you.

Bundling

Combining home and auto policies with the same carrier to qualify for multi-policy discounts. Bundling typically saves 10% to 25% on auto premium and can preserve loyalty discounts on both lines.

Why It Matters Bundling is real savings, but only when both policies are well-structured at the same carrier. Some clients should not bundle if the home and auto needs require different specialty markets. McDade evaluates bundling on a case-by-case basis through PGI's 220+ carrier network.
C

Cancellation

The carrier ending your policy mid-term, typically for non-payment, fraud, or material misrepresentation. Texas Department of Insurance rules govern when and how a carrier may cancel.

Why It Matters Cancellation is different from non-renewal. Cancellation ends coverage now. Non-renewal ends coverage at term. Both can affect insurance scoring with new carriers and can trigger SR-22 filings for certain reasons.

Claim

A formal request to the carrier for payment under the policy after a covered loss. Filing a claim begins the adjuster process and is recorded in your CLUE report, where it stays for seven years. Auto claims affect future underwriting, future premium, and eligibility for claim-free discounts.

Why It Matters Not every loss should be a claim. The 1.5x to 2x deductible rule applies. McDade discusses claim strategy with clients before the claim is filed, particularly on glass and minor losses where the carrier philosophy varies widely.

Collision Coverage

Pays to repair or replace your vehicle after a crash with another vehicle or object regardless of fault. Optional under Texas law unless required by your lender or lessor. Typical deductibles range from $500 to $2,500.

Why It Matters Collision is typically the most expensive line item on a full coverage auto policy. The 10% rule: if combined collision and comprehensive premium exceeds 10% of vehicle ACV, dropping to liability-only deserves consideration.

Comparative Fault (Texas Modified)

Texas operates under a modified comparative fault rule (also called the 51% bar rule). If you are 50% or less at fault, your damages are reduced by your percentage of fault. If you are 51% or more at fault, you cannot recover anything from the other party.

Why It Matters The 51% threshold is binary. Being 50% at fault means your recovery is cut in half. Being 51% at fault means your recovery is zero. Adjusters fight hard on the percentage allocation in marginal cases. UM/UIM coverage protects you when comparative fault disputes leave you without external coverage.

Comprehensive Coverage

Covers damage to your vehicle from non-collision events: theft, vandalism, fire, hail, flood, falling objects, animal strikes, glass damage. Optional under Texas law unless required by lender or lessor. Comprehensive premiums typically run 40% to 60% less than collision.

Why It Matters Texas-specific risks (hail, hurricane, animal strikes on rural roads) make comprehensive often more valuable than collision in dollar-saved-per-premium terms. Many Houston households drop collision before comprehensive when downsizing coverage on aging vehicles.
D

Declarations Page (Dec Page)

The summary front page of your policy listing all named drivers, vehicles, coverage limits, deductibles, endorsements, discounts, and premium. The dec page is your audit document at every renewal. Compare this year's dec page to last year's line by line to find what changed.

Why It Matters The dec page is the only document most drivers ever see. Reading it correctly is the difference between knowing what you own and trusting that someone else read the policy for you. Audit the driver list against current household members. Confirm liability limits match your asset profile.
Charles in Plain English

Two dec pages. Side by side. That is a renewal review.

Deductible

The amount you pay out of pocket before the carrier pays anything on a covered claim. Auto policies typically carry separate deductibles for collision and comprehensive. Common levels: $250, $500, $1,000, $2,500.

Why It Matters Texas Department of Insurance notes deductibles never apply to claims against the at-fault driver's insurance. Increasing collision deductible from $500 to $1,000 typically saves $100 to $200 per year. The right deductible matches household emergency savings, not the lowest available premium.

Direct Repair Program (DRP)

A network agreement between a carrier and specific body shops at negotiated labor rates. Carriers steer policyholders toward DRP shops because of the discounted rates. Texas Insurance Code Section 1952.301 prohibits insurers from requiring you to use a specific repair facility, but the steering pressure is still real.

Why It Matters DRP shops can be excellent for standard collision work. They are often inadequate for luxury, exotic, or certified-program vehicles (Tesla, Mercedes, BMW, Porsche) where manufacturer-certified repair processes matter. McDade reviews carrier DRP networks against client vehicle profiles.
Charles in Plain English

The carrier picks the rate. The shop picks the bill. You sit between them.

Source: Texas Insurance Code Section 1952.301

Discount Stack

The combination of premium discounts applied to your policy at any given time. Common Texas auto discounts include multi-policy, multi-vehicle, good driver, defensive driving, good student, paid-in-full, EFT/paperless, anti-theft, occupation-based, loyalty, continuous coverage, and telematics-based.

Why It Matters Many discounts phase out or reset. Good student ages out at college graduation. Defensive driving expires after three years. Multi-policy can vanish if home or auto changes carriers mid-cycle. A discount audit at every renewal recovers premium most clients never knew they were paying.
Charles in Plain English

You did not lose the discount. The renewal stopped giving it to you.

Driver Exclusion

A formal endorsement that names a specific household member and removes coverage when that person operates your vehicle. Excluded drivers have zero coverage. Claims are denied. Vehicle owners can face negligent entrustment liability if they let an excluded driver use the vehicle.

Why It Matters The strategy makes sense for an adult child with their own primary auto policy who never drives the parent's car, a household member with a serious driving record, or a roommate with their own auto policy. The strategy fails when the excluded driver does end up behind the wheel even once.
Charles in Plain English

Excluded means excluded. Even once is too many times.

E

Endorsement

A formal modification to your policy that adds, removes, or changes coverage. Auto endorsements appear on the dec page by code. Common auto endorsements: Full Glass, Rental Reimbursement, Towing & Roadside, OEM Parts, Non-Owned Auto, Driver Exclusion.

Why It Matters Some endorsements add coverage. Some remove it. Most drivers see "endorsement" and assume it was added for their benefit. Often the opposite. Every new endorsement at renewal deserves a one-sentence explanation.
F

Full Coverage

An informal term referring to the bundle of liability, collision, and comprehensive coverage. Full coverage is not a defined coverage type and varies by carrier. Lenders and lessors typically require full coverage on financed or leased vehicles.

Why It Matters "Full coverage" tells you nothing about whether your specific limits, endorsements, deductibles, and valuation methods are appropriate. McDade audits the components of full coverage rather than relying on the label.

Full Glass Endorsement

An endorsement that waives the comprehensive deductible on glass-only claims (windshield, side windows, rear glass). Per State Farm published guidance, glass claims are generally less likely to result in surcharges than at-fault collision claims.

Why It Matters Modern windshield replacement on vehicles with ADAS systems (cameras, sensors, radar units behind the windshield) routinely costs $1,000 to $2,000+ with calibration. The Full Glass Endorsement typically costs $30 to $60 per year and pays for itself on a single claim.
G

Gap Insurance

Coverage that pays the difference between your vehicle's ACV at total loss and the remaining loan or lease balance. Most lenders require gap insurance until the loan-to-value reaches 100%. All lessors require gap insurance for the duration of the lease.

Why It Matters A vehicle financed at $55,000 with a current ACV of $42,000 leaves a $13,000 gap on a total loss. Without gap coverage, you owe the lender the gap amount even though the vehicle is destroyed. Dealer gap is typically more expensive than carrier gap by 2x to 4x.
H

Hit and Run

An accident in which an at-fault driver leaves the scene without identifying themselves. Hit-and-run claims typically run through your Uninsured Motorist coverage rather than the at-fault driver's policy. Filing a police report within 24 hours is typically required for the carrier to honor the claim.

Why It Matters Without UM coverage, a hit-and-run leaves you with only collision (which carries a deductible) or self-pay. With UM coverage, your medical bills, lost wages, and pain and suffering are covered up to UM limits.
I

Insurance Score

A credit-based score carriers use to predict claim likelihood. Higher scores typically mean lower premiums. Insurance scoring is different from a traditional credit score and uses different data weighting. Texas allows insurance scoring with limits set by Texas Insurance Code.

Why It Matters A coverage lapse, a non-renewal, a recent address change, or a new credit account can affect insurance scoring even when traditional credit score remains strong. Continuous coverage and stable accounts protect insurance score over time.

Insurance Verification

The Texas TexasSure database that electronically verifies auto insurance compliance against vehicle registration. Lapses appear in TexasSure within days. Driving without verified insurance can trigger registration blocks, fines from $175 to $1,000+, and license suspension.

Why It Matters A TexasSure lapse triggers automatic notice from the Texas Department of Public Safety. Resolving the lapse requires uploading new proof of insurance to TexasSure and may require an SR-22 filing depending on circumstances.
L

Lapse

A break in continuous insurance coverage. Even a one-day lapse can affect insurance score, eligibility for continuous coverage discounts, trigger SR-22 filings, and trigger lender-placed insurance on financed vehicles. Texas TexasSure tracks lapses electronically.

Why It Matters Switching carriers without overlap, missing a payment by a few days, or letting auto-pay fail at a renewal can create a lapse. The premium savings on a switch can disappear if the lapse triggers a continuous coverage discount loss at the new carrier.

Liability Coverage

The portion of your auto policy that pays for damages and injuries you cause to others. Has two parts: bodily injury and property damage. Texas requires minimum liability of 30/60/25 per Texas Department of Insurance rules. Liability is the only coverage Texas legally requires.

Why It Matters Liability protects your assets when you cause an accident. State minimums protect the state's mandate, not your assets. For Established Homeowners, McDade typically starts at 100/300/100 with a personal umbrella.

Liability-Only

Coverage that includes only Texas mandatory liability protection without collision or comprehensive. The 10% rule: if combined collision and comprehensive premium exceeds 10% of vehicle ACV, dropping to liability-only deserves consideration. Industry sources reference a vehicle-value threshold around $7,500.

Why It Matters Math is necessary but not sufficient. The vehicle must be paid off, the household must have emergency savings to cover total replacement, the driver must have a clean record, and local risk profile must be acceptable.
Charles in Plain English

Liability-only is right for the right car. Almost never the right answer for the rest of the garage.

M

Material Misrepresentation

A false statement on a policy application that affects the carrier's risk assessment. Per Progressive County Mutual Insurance Company v. Sink, Texas courts require carriers to prove material misrepresentation was intentional before denying coverage based on an unlisted driver.

Why It Matters Texas court precedent provides protection against non-disclosure-based denial. In practice, fighting a claim denial on those grounds takes months and often requires legal representation. The right answer is auditing the household driver roster before a claim ever happens.

Medical Payments (Med Pay)

Optional Texas auto coverage that pays medical bills for you and your passengers regardless of fault. Typical limits $1,000 to $10,000 per person. Coordinates with health insurance and Personal Injury Protection.

Why It Matters Med Pay fills coverage gaps when your health insurance has high deductibles or limited network coverage. It also pays for passengers without their own coverage, which avoids friction in social and family driving scenarios.

Minimum Limits (Texas 30/60/25)

The lowest legal auto liability limits in Texas: $30,000 bodily injury per person, $60,000 bodily injury per accident, $25,000 property damage per accident. State minimums are a legal floor, not a financial recommendation.

Why It Matters A serious multi-vehicle accident with multiple injured parties or a single accident with significant medical costs can exhaust 30/60/25 in a single hospital visit. Per Texas DMV data, approximately 20% of Texas drivers are uninsured, making UM/UIM coverage essential alongside higher liability limits.
Charles in Plain English

State minimums protect the state's mandate. Real limits protect your name.

Source: Texas Department of Insurance, Auto Insurance Guide

Multi-Policy Discount

A premium reduction for bundling home and auto with the same carrier. Typically saves 10% to 25% on auto premium. Vanishes if home or auto changes carriers mid-cycle, which is one of the largest premium increases most clients experience.

Why It Matters The multi-policy discount is real savings, but only when both policies are well-structured at the same carrier. McDade evaluates whether bundling is the right call based on the specific home and auto needs, not on the discount alone.

MVR (Motor Vehicle Report)

A driving record pulled from state DMV databases. Lists license status, accidents, traffic violations, suspensions, and points history. Most states maintain 5 years of violations and 3 years of accident history. Some violations like DUI/DWI remain on the record for 10 years or longer.

Why It Matters Carriers pull MVRs at new business and at renewal. Failure to disclose violations or accidents that appear on the MVR can trigger retroactive premium increases or claim denials for material misrepresentation.
N

Named Driver Policy

A policy form that covers only specifically listed drivers and excludes all others. Texas does not allow blanket named-driver policies that exclude classes of drivers. Texas does allow specific named driver exclusions in writing on standard policies.

Why It Matters Named driver policies are typically marketed at lower premiums but provide much narrower coverage. A non-listed driver borrowing your car is uncovered. The savings rarely justify the gap for high-end households.

Non-Owned Auto Coverage

An endorsement that extends your liability coverage when you drive a vehicle you do not own (rental, borrowed, business). Particularly valuable for households with frequent rental car use or multiple part-time vehicle access scenarios.

Why It Matters Without non-owned auto coverage, your personal auto liability typically does not extend to vehicles you do not own. The rental counter coverage offered at $20-$30 per day fills the gap on rentals but is typically more expensive than a non-owned auto endorsement on your home auto policy.

Non-Renewal

The carrier choosing not to offer you a new policy at renewal. Different from cancellation. Texas Department of Insurance rules require advance notice. Common reasons include claim frequency, multiple at-fault accidents, multiple violations, or carrier withdrawal from a market segment.

Why It Matters A non-renewal can affect insurance scoring with new carriers and can be flagged on insurance applications. Receiving a non-renewal notice is a signal to find a new home in the market quickly.
O

OEM Parts

Original Equipment Manufacturer parts. Per Texas Insurance Code Section 1952.301, vehicles owned 36 months or less carry an OEM preference. The insured must sign a written disclosure to opt into non-OEM parts before repair begins.

Why It Matters OEM parts make sense in five scenarios: new vehicles within 36 months, vehicles under manufacturer warranty, vehicles with ADAS systems requiring precise mounting, luxury or high-end vehicles where panel gaps and paint matching matter, and vehicles where the policyholder has paid for an OEM endorsement.
Charles in Plain English

The plate said new car. The repair should match.

Source: Texas Insurance Code Section 1952.301

P

Permissive Use

The legal doctrine extending coverage to non-listed drivers operating your vehicle with your permission. Most insurance follows the car (covers permissive users) but not the driver. State Farm's 2025 Personal Car Policy reinforces that regular drivers must still be disclosed even when permissive use applies.

Why It Matters Permissive use does not eliminate the duty to disclose regular drivers. A friend borrowing your car for a one-time errand is permissive use. A roommate driving your car weekly is a regular driver who should be on the policy.

Source: State Farm Personal Car Policy Notice 153-7582 (June 2025)

Personal Injury Protection (PIP)

Texas auto coverage that pays medical expenses, lost wages, and essential services for you and your passengers regardless of fault. Texas requires carriers to offer PIP. Standard limit is $2,500 per person. You can decline in writing.

Why It Matters PIP fills coverage gaps when your health insurance has high deductibles, limited network coverage, or no lost-wage protection. PIP is typically inexpensive ($30-$60 per year for $2,500 limit) and pays out without fault disputes.

Premium

The annual or monthly amount you pay the carrier for coverage. Auto premium is built from base rate, discounts, surcharges, endorsement costs, vehicle profile, driver profile, and pricing tier eligibility.

Why It Matters Premium is the headline. Coverage is the contract. A lower premium often means a thinner contract underneath. Every cheaper quote is a quieter promise.

Property Damage Liability

The portion of your auto liability coverage that pays for property damage you cause to others (their vehicle, fences, buildings, structures). Texas minimum is $25,000 per accident.

Why It Matters A single luxury vehicle accident can exhaust $25,000 in property damage in one repair. A multi-vehicle accident or an accident hitting a building can quickly exceed minimum limits. Established Homeowners typically need $100,000+ in property damage liability.
R

Rental Reimbursement

Coverage that pays for a rental vehicle while yours is in the shop for a covered claim. Allstate sells rental reimbursement as a per-day dollar limit ($30 to $100 per day) up to 30 days. Allstate's coverage description explicitly states: if the rental car costs more than your daily limit, you pay the difference.

Why It Matters On a high-end household with a daily driver in the shop for three weeks, a $30 per day rental limit caps the carrier payout at approximately $900 over 30 days, while a comparable rental for an SUV or luxury vehicle in Houston can run $80 to $150 per day. The structure (per-day vs per-claim) matters more than the topline number.
Charles in Plain English

$30 a day was a fair number in 2010. In 2026 it does not even cover an SUV.

Source: Allstate Rental Reimbursement Coverage (Published Coverage Information)

Renewal

The annual or six-month cycle when the carrier offers a new policy term. Renewal is the only window when the carrier reopens the contract. Premium can change. Coverage limits can change. Endorsements can be added or removed. Driver lists can change without notice.

Why It Matters Auto-renewal is the single biggest source of unnoticed coverage erosion. The premium debits the bank account, the dec page goes in a drawer, and the next claim discovers what was actually signed.
Charles in Plain English

The renewal is the only conversation the carrier offers. Have it before you sign.

Want to audit your renewal? See the McDade Auto Insurance Review.

S

SR-22

A certificate of financial responsibility filed by your carrier with the Texas DMV proving you carry minimum required liability coverage. Required after certain serious driving offenses (DUI, multiple violations, license suspension, or driving without insurance). Typically required for 2 years of continuous coverage.

Why It Matters Not all carriers file SR-22s. Carriers that do typically charge a small filing fee plus higher base premiums during the SR-22 period. A lapse during the SR-22 period restarts the clock.

Stated Value

A valuation method where you declare a vehicle value on the policy. Standard policy language pays the lesser of the Stated Value or Actual Cash Value at time of loss. Stated Value functions as a ceiling, not a guarantee.

Why It Matters If you list a 1970 Plymouth Cuda at $80,000 Stated Value and the carrier's adjuster determines the ACV is $60,000 at time of loss, you receive $60,000. Stated Value is rarely the right answer once a client understands what it actually pays.
Charles in Plain English

Stated Value sounds like a promise. It is a ceiling.

Subrogation

The carrier's right to pursue recovery from a third party responsible for a loss after paying your claim. Successful subrogation can return your deductible.

Why It Matters Subrogation is invisible to most drivers but worth understanding. If your carrier successfully subrogates against the at-fault party, you may receive your deductible back as part of the recovery.
T

Texas Department of Insurance (TDI)

The state regulator overseeing insurance in Texas. TDI publishes consumer guides, handles complaints, regulates carrier conduct, and enforces Texas Insurance Code. tdi.texas.gov is the official portal. Consumer Help Line: 1-800-252-3439.

Why It Matters TDI is the right escalation path for unresolved disputes with a carrier. McDade walks clients through TDI complaints when carrier escalation has failed and the matter requires regulatory attention.

Source: Texas Department of Insurance Official Website

Texas Insurance Code Section 1952.301

Texas statute governing insurer restrictions and duties regarding motor vehicle repair. Establishes OEM parts preference for vehicles owned 36 months or less, written disclosure requirements for non-OEM parts, and prohibition on requiring specific repair facilities.

Why It Matters The statute provides specific consumer protections at claim time. Most drivers do not know these protections exist. McDade reviews carrier compliance with Section 1952.301 on every disputed repair claim.

Source: Texas Insurance Code Chapter 1952

Total Loss

A vehicle loss where repair cost exceeds a percentage of the vehicle's ACV. Texas uses the Total Loss Formula. Carriers typically declare total loss when repair plus salvage value exceeds vehicle ACV. The total loss threshold varies by carrier and vehicle.

Why It Matters Total loss settlements are calculated using ACV, Stated Value, or Agreed Value depending on policy form. The valuation method determines whether you receive market value, a ceiling amount, or the agreed amount. Total loss disputes are common on aging vehicles and require documentation of condition and modifications.

Towing & Roadside Assistance

Optional auto coverage that pays for towing, jumpstart, lockout service, fuel delivery, and tire changes. Some carriers track roadside usage as activity that can affect underwriting. Standalone roadside memberships (AAA, Better World Club) preserve the auto claims-free record.

Why It Matters The carrier roadside coverage is convenient but counts against your activity record at some carriers. A $60 to $100 standalone roadside membership is typically the cleaner choice for drivers who want to preserve carrier claims-free standing.
U

Underinsured Motorist (UIM)

Coverage that applies when the at-fault driver's liability limits are insufficient to cover your damages. UIM steps in beyond the at-fault limit. Texas requires carriers to offer UIM. You can decline in writing.

Why It Matters Many Texas drivers carry only minimum 30/60/25 limits, which often runs out long before a serious injury claim is paid. UIM closes that gap. Without UIM, the responsibility shifts entirely to your own collision and medical coverage.
Charles in Plain English

You can buy the best policy on the road. It does not protect you from the worst driver on it.

Uninsured Motorist (UM)

Coverage that applies when the at-fault driver has no insurance or in hit-and-run scenarios. Per Texas DMV data, approximately 20% of Texas drivers are uninsured. Texas requires carriers to offer UM. You can decline in writing.

Why It Matters One in five vehicles you share Texas roads with carries no liability coverage at all. UM coverage means your medical bills, lost wages, and pain and suffering are covered when the responsible party cannot pay. Most clients who declined UM years ago to save premium have no idea they did.

Source: Texas Department of Motor Vehicles, Uninsured Driver Data

Underwriting

The carrier's process of evaluating risk to decide whether to offer a policy and at what price. Inputs include MVR, CLUE history, insurance score, vehicle profile (make, model, year, value), garaging address, prior carrier history, and household composition.

Why It Matters Underwriting decisions made today affect premium and coverage for years. A claim filed strategically (or paid out of pocket strategically) protects underwriting standing. McDade discusses claim and policy decisions with their underwriting consequences in mind.
V

Vehicle Identification Number (VIN)

The 17-character identifier unique to every vehicle. Carriers use VIN to verify make, model, year, trim, equipment, accident history (via Carfax/AutoCheck), and theft recovery records. VIN errors at quote time can void coverage on the affected vehicle.

Why It Matters A transposed digit on a VIN can mean the carrier insured a different vehicle than the one in your driveway. At claim time, VIN mismatches can trigger investigation and delay or denial. Audit VINs on every dec page against the actual vehicles.
The McDade Glossary Standard

The contract is the conversation. The glossary is how we have it.

"We compare contracts to contracts. Every term in this glossary shows up on a real Texas auto dec page somewhere. The job of an honest broker is to help you read what you signed before you sign it again. About 40% of the time we tell clients to keep what they have. The other 60% is where we find a structural issue that would have cost them thousands. Send us your dec page. We will tell you the truth."

Charles McDade, LUTCF Founder & CEO, McDade Insurance Brokerage Group

Other McDade Glossaries

Different policies. Same discipline.

"The vocabulary changes by product. The contract-to-contracts standard does not."

Master Index

Insurance Glossary Hub

The contract-to-contracts philosophy and an A-Z master index across all four products. Start here if you do not know which policy your term lives under.

Visit the Hub →
Home

Home Insurance Glossary

Texas home vocabulary. ACV, RCV, Roof Payment Schedule, Wind/Hail Deductible, HO-3, sublimits, endorsements, and the language Texas carriers use on home contracts in 2026.

Visit the Home Glossary →
Flood

Flood Insurance Glossary

NFIP, Elevation Certificate, Flood Zone X, Replacement Cost Value on flood, contents coverage, and the Houston-specific flood vocabulary every coastal and inland homeowner should understand.

Visit the Flood Glossary →
Liability

Liability Insurance Glossary

Personal liability, umbrella coverage, excess liability, defense costs, and the language Established Homeowners with assets to protect should understand before signing umbrella policies.

Visit the Liability Glossary →
Read the Vocabulary. Audit the Contract.

Send your dec page. We will tell you the truth.

Connect your current auto policy in two minutes. A licensed McDade broker reads your declarations page line by line using the same vocabulary defined on this glossary. Driver list. Liability limits. UM/UIM. Valuation method on every vehicle. Rental reimbursement structure. OEM language. Discount stack. You get a written audit and two real options inside one business day.

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Frequently Asked Questions

The questions worth asking before you sign.

What is auto insurance terminology and why does it matter?

Auto insurance is a contract. The contract is built from defined terms that decide what the carrier pays, when, and how much. Liability limits decide how much the carrier pays when you cause an accident. Agreed Value vs Stated Value vs ACV decides how much you receive on a total loss. OEM vs aftermarket parts decides what gets put back on your vehicle after a repair. Most Texas drivers sign their auto policy without understanding the language inside it. The McDade Auto Insurance Glossary defines 55 terms in plain English so you can read your declarations page line by line and know what you actually own.

What is the difference between Agreed Value, Stated Value, and ACV in auto insurance?

Actual Cash Value (ACV) pays the depreciated market value at time of loss. ACV is the standard valuation method on most auto policies. Stated Value is a value you declare on the policy, but standard policy language pays the lesser of the Stated Value or ACV at time of loss. Stated Value functions as a ceiling, not a guarantee. Agreed Value is a value you and the carrier agree to in writing before the policy is issued, locked for the policy term. On a covered total loss, Agreed Value pays the full agreed amount. For high-end clients with classic, exotic, restomod, custom, or appreciating vehicles, Agreed Value is the gold standard.

What is Additional Driver Discovery and why is it appearing on Texas auto policies?

Additional Driver Discovery (A.D.D.) is a carrier process that cross-references DMV records, vehicle registrations, driver licenses, and other public data to identify drivers the carrier believes live at your address. CBS News reported a Denver case in December 2024 where a homeowner discovered a driver he had never met had been added to his Progressive policy through one of these searches. The industry estimates unidentified drivers cost carriers about $10 billion annually in premium leakage. Major Texas carriers in 2026 are using A.D.D. searches to add drivers automatically. Audit your declarations page at every renewal.

What does Texas Insurance Code Section 1952.301 say about OEM parts?

Texas Insurance Code Section 1952.301 governs insurer restrictions and duties regarding motor vehicle repair. For new vehicles owned by the insured for 36 months or less, Texas law creates a preference for OEM parts and the insured must sign a written disclosure to opt into non-OEM parts before repair begins. For vehicles older than 36 months, insurers in Texas generally have discretion to specify aftermarket parts but must provide written disclosure. The statute also prohibits insurers from requiring you to use a specific repair facility. Industry data indicates aftermarket parts cost 20% to 50% less than OEM parts.

What are Texas minimum auto liability limits and are they enough?

Texas requires minimum auto liability of 30/60/25 per Texas Department of Insurance rules: $30,000 bodily injury per person, $60,000 per accident, $25,000 property damage. State minimums protect you legally. They do not protect your assets. A serious multi-vehicle accident can exhaust 30/60/25 in a single hospital visit. Per Texas DMV data, approximately 20% of Texas drivers are uninsured. For Established Homeowners and high-net-worth households, McDade typically starts at 100/300/100 with a personal umbrella of $1M to $5M, and UM/UIM is non-negotiable.

What is the difference between Uninsured Motorist (UM) and Underinsured Motorist (UIM) coverage in Texas?

Uninsured Motorist (UM) coverage applies when the at-fault driver has no insurance or in hit-and-run scenarios. Underinsured Motorist (UIM) applies when the at-fault driver has insurance but the limits are insufficient to cover your damages. Both are required to be offered in Texas but can be declined in writing. With approximately 20% of Texas drivers uninsured per Texas DMV data, declining UM/UIM means the responsibility for your medical bills, lost wages, and pain and suffering shifts entirely to your own collision and medical coverage in any accident caused by an uninsured or underinsured driver.

Should I let my Texas auto carrier exclude a household member to lower my premium?

Sometimes. A driver exclusion is a formal endorsement that names a specific household member and removes coverage when that person operates your vehicle. Excluded drivers have zero coverage of any kind. Claims are denied if they drive your car, and the vehicle owner can face negligent entrustment liability if they knowingly let an excluded driver use the vehicle. The strategy makes sense for an adult child with their own vehicle and their own insurance who never drives the parent's car, a household member with a serious driving record, or a roommate with their own auto policy. The strategy fails when the excluded driver does end up behind the wheel even once.

When does it actually make sense to drop full coverage and switch to liability-only?

The widely cited industry framework is the 10% rule: if combined annual collision and comprehensive premium exceeds 10% of your vehicle's actual cash value, dropping to liability-only deserves serious consideration. Industry sources reference a vehicle-value threshold around $7,500. Math is necessary but not sufficient. The vehicle must be paid off, the household must have emergency savings to cover total replacement, the driver must have a clean record, and local risk profile must be acceptable. Liability-only is rarely the right answer for a high-net-worth household, where 100/300/100 or higher with UM/UIM is typically the standard.

How does rental reimbursement actually work after a covered Texas auto claim?

Per Allstate's published rental reimbursement coverage information, drivers can purchase a daily limit of $30 to $100 per day for up to 30 days. Allstate's coverage description explicitly states: if the rental car costs more than your daily limit, you pay the difference. On a high-end household with a daily driver in the shop for three weeks, a $30 per day rental limit caps the carrier payout at approximately $900 over 30 days, while a comparable rental for an SUV or luxury vehicle in Houston can run $80 to $150 per day. The gap comes out of your pocket. Different carriers structure rental reimbursement differently. The structure (per-day vs per-claim) matters more than the topline number.

Why should I use the McDade Auto Insurance Glossary instead of a generic auto glossary?

Generic glossaries define terms in general. The McDade Auto Insurance Glossary defines them for Texas households with the specific language of Texas Insurance Code Section 1952.301, Texas Department of Insurance rules, Texas DMV data, and the Houston market context. Every definition includes why the term matters at claim time, what to look for on your declarations page, and a citation to the regulatory or carrier source where applicable. The goal is not to teach insurance vocabulary. The goal is to help you read your contract honestly before signing for another year.