2018 Cadillac ATS

21 complaints on file, page 1 of 2.

1. Filed May 12, 2026Failure Apr 25, 2026Churchville, NYBody

   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 complaint 11737210
2. Filed Dec 22, 2025Failure Nov 30, 202533,527 milesVineland, NJElectrical system

   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 engine Auto START/STOP, needed to be replaced. The dealer was contacted for the part and informed the contact that the part was not available. The contact had contacted approximately 6 dealers, who confirmed that the part was not available. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 33,527.

   NHTSA complaint 11706515
3. Filed Jul 11, 2025Failure Jun 22, 2025NEW Cumberland, PAPower train

   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 replaced." There were no warning lights, but there was noise - a new, not normal noise I noticed two weeks prior to the diagnostic procedure by the dealership service department. This is the second rear differential failure. The service writer said there was no sign of leakage.

   NHTSA complaint 11672691
4. Filed Jul 8, 2025Failure May 15, 2025Georgetown, TXSteering

   My vehicle recently started experiencing an issue where the power steering would randomly cut out while I was driving. If I pulled over and shut the car off and then turned it back on the power steering would come back. But sometimes I would have to do this multiple times in a single drive just to keep the power steering on. I know that there is already a recall for this for some 2018 Cadillac ATS and CTS vehicles, but mine was not included in the recall, despite having the same issue. Took it to the dealer for diagnostic and they ended up having to replace the control module for the power steering which cost me around $2000.

   NHTSA complaint 11671972
5. Filed Jan 22, 2025Failure Nov 18, 2024Springfield, MOElectric power assist system

   The power steering will randomly stop working while driving! We have had it in the shop 3 times and they can't find anything! We have replaced alternator, battery and it still isn't fixed! I seen u had a recall on the 16, 17, and some 18s for this issue! We have always bought GMs and are very disappointed! Could u please! Fix this issue on our car! Our car must have been over looked on this issue!

   NHTSA complaint 11637598
6. Filed Jun 26, 2024Failure Jun 24, 2024New York, NYElectrical system

   The car was parked outside at around 85 degrees. After entering the vehicle and driving with the AC on for a few minutes the CUE screen started to crack on the inside like a spider web. This has already been reported in 11576315 and 11325962. But I can't find any manufacturer communication on these. On the Internet I found that there is a class action lawsuit but only up to the year 2017 and it has already been settled privately. Since the vehicle is out of warranty there is no effort from GM to pay for the replacement. Since the CUE screen is essential for the vehicle operations, i.e. settings, navigation etc. it's a safety issue. On the Internet there are crowds of people complaining about the same issue. GM should react and offer replacement. Especially a replacement where the issue is fixed, otherwise the replacement will crack again after some years. Thanks and BR

   NHTSA complaint 11596850
7. Filed Jun 5, 2024Failure May 18, 2024Greenfield, WIFuel/propulsion system

   While driving started to smell gas. On same day, car stalled at an intersection in a downtown area. I could not start car. Had to push car in busy traffic to a safe place and called a tow truck. Auto shop I took to said the fuel pump came loose somehow and caused the fuel lines to break causing the fuel leak. Had lines repaired. Fuel pump was not replaced and is working.

   NHTSA complaint 11592545
8. Filed Mar 8, 2024Failure Jul 5, 2023Milltown, NJUnknown or other

   Hi, the cue screen is cracked which makes it no longer handsfree. It cracked in July of 2023 and it's a 2018, purchased in October 2017, the dealer will not fix it, I don't have $1500 to replace it with a one year warranty and it could happen again. I am not eligible for the class action suit which stopped with cars up to 2017. Please advise since this is an extreme hazard since the screen cracks and if driving using navigation it can cause an accident !

   NHTSA complaint 11576315
9. Filed Nov 28, 2023Failure Oct 15, 202384,000 milesDuluth, GAPower train

   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. The contact continued to drive the vehicle and heard an abnormal winding or rubber sound. There were no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that the differential needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 84,000.

   NHTSA complaint 11557178
10. Filed Jun 25, 2023Failure Jun 24, 2023Mooresville, INPower train

    Unexpected shutter of vehicle, loss of power, unpredictable forward motion, erratic movement, delayed acceleration.

    NHTSA complaint 11528735
11. Filed Jun 23, 2023Failure Mar 1, 202319,000 milesPhiladelphia, PAAir bag/restraint control module, Srs malfunction warning lamp/light

    The contact owns a 2018 Cadillac ATS. The contact stated that while the front passenger’s side seat was occupied, the air bag (SRS) restraint system warning light illuminated. The vehicle was taken to the local dealer where it was diagnosed that the presence module needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 19,000.

    NHTSA complaint 11528452
12. Filed Apr 4, 2023Failure Jan 4, 202359,800 milesInverness, FLNon-powered axle assembly

    The contact owns a 2018 Cadillac ATS. The contact stated while driving 35 MPH, there was an abnormal sound coming from the rear of the vehicle. The vehicle was taken to an independent mechanic and axles, gaskets, and seals were replaced; however, the failure reoccurred. The vehicle was taken to the dealer to be diagnosed, and the dealer stated that the rear-end needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but provided no assistance. The failure mileage was 59,800.

    NHTSA complaint 11515451
13. Filed Feb 26, 2023Failure Feb 9, 2023Corvallis, ORHeadlights

    5am, 2/9/23, it's dark and I'm driving 90 minutes to Portland Airport. ~10 cars that came up behind with what seemed to me to have their bright lights on high beam. Approximately 7 vehicles of these were: ALL Ford F-150 (newish) pickups. Bright lights shining in rear view mirrors is a visibility hazard at night. It seems very unusual that 3/4 of the "high beam" vehicles behind me, were Ford F-150 pickups. (the others were: 1 that did have high beams, 1 with after-market blue lights that were extra bright, one with incorrectly adjusted head light angle).

    NHTSA complaint 11509195
14. Filed Feb 1, 2023Failure Jan 23, 2023westland, MIPower train

    2018 cadillac ats (most of the cadillac vehicles reported same issue). The transmission fluid is wrong fluid by manufacturer and driving at regular speed all of a sudden it starts shuddering and loses power or slows down at freeway speeds or any local roads. took the car for inspection to a local dealer and they said it is the transmission fluid which has to be upgraded and charged me hundreds of dollars. But how it is not recalled by GM since they sold the cars with wrong transmission fluid which is causing these issues?

    NHTSA complaint 11504832
15. Filed Jun 2, 2022Failure Jun 2, 2022South Range, WIPower train

    Transmission shudder noticed between 42 to 48 mph. It appears the transmission is shaking, it seems to be continually shifting between gears in the 42 to 48 mph range.

    NHTSA complaint 11467229
16. Filed Mar 13, 2022Failure Mar 12, 2022Newark, TXAir bagsCrash1 injured

    Vehicle was involved in a accident all front damage and airbags didn’t deploy

    NHTSA complaint 11456480
17. Filed Nov 18, 2021Failure Apr 20, 2020Mahopac, NYTires

    This is the 3rd tire now that I am going to have to replace. PEPE Cadillac replaced the 1st one on 4/21/20 and another one on 6/30/21 and now another one any day. It seems like the tires start bulging off the rim and as per the dealership they are unsafe to drive and need to be replaced. It cost me $276.51 and $274.49 respectively and whatever its going to cost now to replace the 3rd one. First one failed at 10,856 miles, Second one failed at 16,244 miles and now the 3rd one at 19,967 miles. I am attaching the dealership invoices and photo for y our review. Also, as per the dealership employee GM is aware of this problem but is not doing anything.

    NHTSA complaint 11440887
18. Filed Aug 3, 2020Failure Aug 3, 202024,271 milesBloomington, INSteering

    NO POWER STEERING CLUSTER WARNING SAYS SERVICE POWER STEERING DRIVE WITH CARE

    NHTSA complaint 11343094
19. Filed May 26, 2020Failure May 18, 202018,000 milesSaginaw, TXElectrical system, Equipment, Unknown or other

    THE SCREEN IS STARTING TO SPIDER CRACK UNDERNEATH THE GLASS. VEHICLE WAS STATIONARY IN MY DRIVEWAY. *TR

    NHTSA complaint 11325962
20. Filed Jul 1, 2018Failure Jul 1, 2018Doha, OHEngine, Fuel/propulsion system, Power train

    HIGH PRESSURE FUEL PUMP

    NHTSA complaint 11104928