Cadillac ATS problems
Light NHTSA footprint — 21 owner complaints. Either a clean record or thin data; we'll show what's there.
Above-average reliability for the segment. Few systemic issues on file.
Buyable on the data — keep up the usual maintenance and inspect normally.
- No systemic severe-failure pattern in the complaint record
- Reliability score 8.6/10 — above the segment average
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Top trouble spots 3 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
The contact owns a 2018 Cadillac ATS. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed, and the mechanic determined that the F-module, Part Number: 86815664, used to control the…
The contact owns a 2018 Cadillac ATS. The contact stated while driving at undisclosed speeds, there was an abnormal growling sound coming from the vehicle. The contact looked underneath the vehicle, checked the tires, and checked the inside of the vehicle but found no failure.…
No power steering cluster warning says service power steering drive with care
Rear differential. This part will be available after removal. This put me at risk of potentially locking up while driving. According to the dealership, Faulkner Cadillac, "found rear differential bearings damaged, causing noise in the rear end. The Rear Differential will need…
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2018 Cadillac ATS reliable?
Mostly yes. With a reliability score of 8.6 out of 10 based on 21 owner complaints filed with NHTSA, the 2018 Cadillac ATS is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
Should you avoid the 2018 Cadillac ATS?
On the NHTSA data, the 2018 Cadillac ATS does not need avoiding. Buyable on the data — keep up the usual maintenance and inspect normally. The record behind that call: No systemic severe-failure pattern in the complaint record; Reliability score 8.6/10 — above the segment average. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What's the most common problem on the 2018 Cadillac ATS?
Based on NHTSA records, the most-reported issue is powertrain, with 6 complaints filed. Typical failure occurs around 84,000 miles. Average repair cost runs about $2,500 at an independent shop.
What's the most expensive thing that goes wrong?
The powertrain is one of the costlier repair items. Average repair cost runs about $2,500 at an independent shop. Typical failure occurs around 84,000 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Cadillac ATS has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Cadillac ATS?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 21 complaints on file and the costliest repair averaging $2,500, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.