The Insurance Gap: What Your Auto Transport Policy Actually Doesn't Cover

There's a gap in auto transport insurance that almost no one talks about until after something goes wrong. Your personal auto policy and the carrier's cargo insurance each cover some things, each exclude many things, and together they leave specific types of damage completely uncovered. Here's what falls through the gap.

The three insurance layers in auto transport

When your car is being transported, three insurance policies are theoretically in play:

• Carrier's cargo insurance: Covers physical damage to the vehicle caused by the carrier during transport. Required by FMCSA (minimum $75,000 for auto transport operations).
• Broker's surety bond: A $75,000 bond required by FMCSA that covers customer claims against the broker — not cargo damage, but broker misconduct like taking a deposit and failing to ship.
• Your personal auto insurance: Covers your vehicle under normal use. May have provisions for transport, but typically does not cover transit-related damage.

What cargo insurance actually covers

Cargo insurance covers physical damage to the vehicle caused by the carrier during transit — dents, scratches, broken glass from road debris while on the trailer, damage from strapping or loading. That's essentially the scope.

It does not cover:

• Pre-existing damage (anything on the pickup BOL)
• Personal property inside the vehicle
• Mechanical or electrical issues that aren't caused by visible physical damage
• Damage the carrier attributes to "acts of God" (hail, flooding)
• Diminished value after repairs
• Total loss valuation disputes (they pay ACV, not replacement cost)

What your personal auto insurance covers during transport

Most personal auto policies contain a "while in custody of a carrier" exclusion for collision and comprehensive claims — meaning your insurer will deny a claim for damage that occurred while your car was being transported by a licensed carrier. The reasoning: the carrier's insurance is the appropriate coverage for that period.

Some policies provide "backup" coverage if the carrier's insurance denies a claim, but this varies significantly by insurer and policy. Call your insurer before transport and ask specifically: "If my car is damaged while being transported by an auto transport carrier and their insurance denies the claim, does my policy cover it?"

The mechanical and electrical gap

This is the most common gap claim. Your car arrives from transport and the engine sounds different, a sensor light is on, or the transmission shifts roughly. You take it to a mechanic who says the car was driven or sustained mechanical stress. The carrier says there's no visible impact damage and denies the claim. Your auto insurer says it's a maintenance issue.

Unless you can prove the mechanical issue was caused by a specific physical event during transport — and have the documentation to show it — you are typically uninsured for this damage. Cargo policies cover what you can photograph on the car's surface. Internal mechanical damage is a different claim entirely.

Diminished value: the invisible loss

If your car is damaged during transport and repaired, it is now a vehicle with a damage history. Even after a perfect repair, its resale value is lower — this is called diminished value. Carrier cargo insurance does not cover diminished value. Your personal auto insurance may cover it in some states under some circumstances. Most people never realize this loss until they try to sell or trade in the car.

How to close the gap before shipping

• Ask the carrier for a copy of their actual cargo insurance certificate — not just their policy number. Verify it's active and the coverage amount matches what they claimed.
• Call your auto insurer and ask explicitly what happens if the carrier denies a claim.
• Consider a third-party transport insurance rider — some specialty insurers offer standalone auto-in-transit policies that fill the gaps in carrier cargo coverage.
• Document everything at pickup and delivery — photos, odometer, fuel level, all existing damage. Documentation is the only tool you have when both the carrier and your insurer are pointing at each other.
• For high-value vehicles, negotiate an agreed value with the carrier in writing before transport so there's no ACV dispute if the car is totaled.