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What 21 owners told NHTSA about the 2018 Cadillac ATS V-series

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (21)Crash / fire / injury (1)Transmission & drivetrain (6)Electrical system (3)Steering (3)Airbags (2)Fuel system (2)Lights (2)Body & structure (1)Engine (1)Equipment (1)Suspension (1)

1 of 21 complaints match · Body & structure · clear filters

May 12, 2026Body & structure

Both side mirrors failed. Internal components corroded, one almost fell off when driving, the other later became completely detached. Failed parts that could have caused a major safety issue if they were to fail during operation.

NHTSA ODI 11737210

Working with the data? Download all 21 complaints as CSV · fetched from NHTSA July 27, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Cadillac ATS V-series verdict →