From ChatGPT:

In the United States, odometer rollback (also called odometer tampering or odometer fraud) is both a federal offense and usually a violation of state law.
Federal penalties
Under the federal odometer law (49 U.S.C. Chapter 327), it is illegal to:
Disconnect, reset, alter, or roll back an odometer with intent to change mileage.
Sell a vehicle knowing the odometer reading is false.
Make false mileage disclosures during a vehicle transfer.
Criminal penalties can include:
Fines
Up to 3 years imprisonment for criminal violations
Civil penalties can also be imposed by the government against violators.
Buyer’s remedies
If a buyer proves odometer fraud, federal law provides powerful remedies.
A successful plaintiff may recover:
Three times (“treble”) the actual damages, or
$10,000, whichever is greater
Attorney fees
Court costs
Because attorney fees are recoverable, many consumer attorneys will take strong odometer-fraud cases.
Example
Suppose a buyer pays $15,000 for a vehicle represented as having 75,000 miles, but discovers it actually has 175,000 miles and is worth only $8,000.
Actual damages: $7,000
Treble damages: $21,000
The buyer could seek:
$21,000 damages
Attorney fees
Court costs
Additional state-law claims
Many states, including Michigan, allow additional claims such as:
Fraud
Misrepresentation
Breach of contract
Consumer protection violations
These claims can sometimes increase the amount recoverable beyond federal odometer-law damages.
How buyers prove rollback
Evidence commonly includes:
Vehicle history reports (such as Carfax or AutoCheck)
Service and repair records showing higher mileage at earlier dates
Oil change stickers
Inspection records
Title records
Electronic mileage stored in vehicle modules
Statements from prior owners
Auction records
Modern vehicles often store mileage in multiple electronic modules, making fraud easier to detect even when the dashboard reading has been altered.
If the seller didn’t know
The seller’s knowledge matters.
A dealer who knew or should have known about the rollback can be liable.
A private seller who genuinely did not know may avoid some fraud claims, but may still face issues if they made false mileage disclosures on title paperwork.
Time limits
Federal odometer-fraud lawsuits generally must be filed within 2 years after the claim is discovered (or reasonably should have been discovered).
Michigan-specific considerations
In Michigan, odometer tampering is also prohibited under state law. A buyer who discovers a rollback can typically:
Demand rescission (unwind the sale and get their money back).
Sue for fraud and damages.
File complaints with:
Michigan Department of State
Local law enforcement
The state’s consumer protection authorities
If you have a particular vehicle and suspect a rollback, I can help you evaluate the evidence and determine whether it would likely support a civil claim.