5.5 Part D: Physical Damage Coverage

Key Takeaways

  • Part D is first-party coverage for your own vehicle and has two parts: Collision and Other Than Collision (Comprehensive)
  • Collision is impact with another vehicle or object or an overturn; Other Than Collision covers theft, fire, glass, flood, hail, vandalism, falling objects, and animal strikes
  • Hitting an animal such as a deer is an Other Than Collision (Comprehensive) loss, NOT Collision — a frequently tested distinction
  • Part D pays the lesser of the vehicle's Actual Cash Value (ACV = replacement cost minus depreciation) or the repair cost, minus the deductible
  • Transportation expense pays a per-day amount up to a stated maximum after a covered theft or loss; aftermarket electronics and custom equipment need an endorsement
Last updated: June 2026

First-Party Coverage for Your Own Car

Part D — Coverage for Damage to Your Auto is first-party protection: it pays to repair or replace your vehicle. (Part A pays for damage you cause to others' property; Part D pays for your property.) Part D has two coverages an insured can buy separately, each with its own deductible.

1. Collision

Collision is the upset (overturn) of your covered auto or its impact with another vehicle or object. Collision pays regardless of fault — if you are at fault, your own Collision still repairs your car (the deductible applies, and the insurer may subrogate against an at-fault third party).

Examples: striking another car, hitting a guardrail, tree, or building, backing into a pole, pothole damage, and rolling the vehicle.

2. Other Than Collision (Comprehensive)

Other Than Collision (OTC), also called Comprehensive, covers physical damage from causes other than collision:

PerilExample
Theft / larcenyVehicle stolen
Fire / explosionEngine fire
Glass breakageCracked windshield
Flood / waterSubmerged in a flood
Hail / windstormHail dents, flying debris
Vandalism / malicious mischiefKeyed paint
Falling objectsTree limb
Contact with a bird or animalDeer strike
Riot or civil commotionVehicle damaged in unrest

Exam alert: hitting an animal (deer, dog) is Other Than Collision, not Collision. Swerving to avoid a deer and hitting a tree, however, IS Collision — the loss is the impact with the tree.

Collision vs. OTC Quick Reference

LossCollisionOther Than Collision
Hit another vehicleYesNo
Overturn / rolloverYesNo
Hit a guardrail or poleYesNo
TheftNoYes
FireNoYes
Glass breakageNoYes
Flood / hailNoYes
Hitting a deerNoYes

How Part D Settles a Claim

The insurer pays the lesser of:

  • the vehicle's Actual Cash Value (ACV), or
  • the cost to repair or replace the property,

minus the deductible. ACV = replacement cost − depreciation.

Partial loss: repair $5,000; ACV $15,000; deductible $500 → pays $4,500 (repair is the lesser figure, minus the deductible).

Total loss: repair $12,000; ACV $10,000; deductible $500 → pays $9,500 (ACV is the lesser figure, minus the deductible). When repair cost meets or exceeds ACV, the insurer declares a total loss, pays ACV less deductible, and takes the salvage.

Deductibles

CoverageCommon deductibles
Collision$500, $1,000, $2,500
Other Than Collision$0, $100, $250, $500
Glass-only (some states)Often $0 — waived to encourage repair

A higher deductible lowers the premium because the insured retains more of the small, frequent losses.

Transportation Expense and Gap

Part D includes Transportation Expenses — a per-day amount up to a stated maximum (commonly $20–$30 per day, up to about $600 total) for substitute transportation after a covered theft or other loss, often subject to a waiting period for theft. Gap exposure is the shortfall when the loan balance exceeds ACV (owe $25,000, ACV $20,000 = $5,000 gap); standard Part D does not pay gap — a separate loan/lease gap endorsement or coverage is required.

Part D Exclusions

ExclusionReason
Wear and tear, freezing, mechanical or electrical breakdownMaintenance, not a fortuitous loss
Road damage to tiresMaintenance (covered only as part of a larger covered loss)
Aftermarket electronic equipmentNeeds an endorsement (factory-installed is covered)
Custom furnishings/equipment in a pickup or vanNeeds an endorsement
Loss to a non-owned auto used regularlyNot a covered auto
War, nuclear hazard, radioactive contaminationCatastrophic exclusion
Racing or speed contestsHigh-risk activity

Non-Owned and Borrowed Vehicles

Part D extends to a non-owned auto the named insured or a family member is operating, but only at the broadest physical damage coverage already on the policy — and never to a vehicle furnished for the insured's regular use. This is the basis for the often-misunderstood rental-car answer: if the insured carries Collision and OTC on the personal car, that coverage typically follows to a short-term rental, subject to the policy deductible.

Many travelers nonetheless buy the rental company's collision damage waiver to avoid a deductible and loss-of-use disputes, but on the exam the default is that the insured's own Part D follows to a temporary non-owned auto.

Diminished Value and Loss of Use

Two limits surprise candidates. First, the standard PAP does not pay diminished value — the loss in resale value of a repaired vehicle — for the insured's own first-party claim; it pays the lesser of ACV or repair cost. Second, Part D's transportation/loss-of-use benefit is capped at a modest per-day amount with an overall maximum, not the full cost of an extended rental. An insured who wants a generous rental allowance should add a rental reimbursement endorsement with a higher daily limit, because the built-in transportation expense is intentionally small.

Total Loss Settlement Mechanics

When a vehicle is a total loss, the insurer establishes ACV using comparable-vehicle valuation tools, market listings, and condition adjustments. The insured receives ACV minus the deductible, plus, in most states, applicable sales tax and title/registration fees so the insured can buy a comparable replacement. The insurer takes the salvage and may sell it to offset the loss. If the insured disputes the ACV, the PAP's appraisal provision lets each side hire an appraiser and, if they disagree, an umpire decides — a Part F mechanism worth remembering for total-loss disputes.

Stated Endorsements That Expand Part D

EndorsementWhat it adds
Loan/lease (gap) coveragePays the shortfall between ACV and loan balance
Rental reimbursementHigher daily and total rental allowance
Customized equipmentCovers aftermarket electronics and custom work
Original equipment / OEM partsRequires like-kind original-manufacturer parts

Tip: Part D follows the vehicle, not the driver — it covers your covered auto, temporary substitutes, and (within limits) a non-owned auto you are operating, but routinely excludes loss to a vehicle you use regularly that is not on the policy.

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Part D Physical Damage Coverage
Part D Claims by Type (%)
Test Your Knowledge

A driver strikes a deer on the highway, denting the hood. This loss is covered under:

A
B
C
D
Test Your Knowledge

A vehicle has an ACV of $15,000. Collision repair costs are $12,000 and the deductible is $500. What does the insurer pay?

A
B
C
D
Test Your Knowledge

Standard Part D coverage does NOT pay for which of the following?

A
B
C
D
Test Your Knowledge

How does Part D value a settlement on a damaged covered auto?

A
B
C
D