CADILLAC Complaints

What component or system failed or malfunctioned, and is it available for inspection upon request? From 2018. The uauto start/stop system has failed 3 times. How was your safety or the safety of others put at risk? These components failing subjects the driver and surroundings to a stalled car that may not start again. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Inspection by vehicle dealer only. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No.

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.

The airbag warning light appeared 45 days ago. I immediately took my 2017 Cadillac to the dealer (Sewell Cadillac of Houston). The vehicle is covered under a Sewell Extended warranty until 2028. The dealer performed troubleshooting and determined that the passenger seat sensors/module (part # 84567224 ) was defective. The Inspector for the Sewell Extended warranty confirmed that the replacement was covered by the warranty. The dealer advised after 30 days (completing other services- Brakes/rotors/front tires/spark plugs & wires etc) that the part # was “Back-ordered” and Sewell did not know when the part would be available, if ever. The consequence explained that the passenger seat which contains GM Part # 84567224 should not be used as the airbag may not inflate. Now the dealer wants their “loaner car” back and for me to pick up my “unrepaired Safety defective seat in my car”. Today’s date: December 20, 2025. The car was purchased new 11/2016 from the same Sewell Cadillac dealer. I would expect that General Motors be compelled to supply critical safety related equipment (part # 84567224) for a 8 year old car.

Since April 2025, my 2021 escalade has been losing oil quickly. No leak externally has been found. The recent recall found "no engine problems" and placed new thicker oil, but the leak continues with us losing significant amounts of oil every 500 miles. This engine remains defective, losing oil internally, and is putting 600,000 drivers+ at risk for engine failure or loss of propulsion. The recall has not solved the issue at all and the protocol to declare an engine OK and change the oil is insufficient.

Vehicle was running with the driver side door open and driver out of vehicle. The vehicle slipped out of gear and reversed quickly. Driver went to get back in while moving backwards to try and stop vehicle. The driver got smashed between the garage and vehicle door. The vehicle door hyperextended and caused damage/injury to driver. The emergency brake did not come on until after the accident. Prior to this happening recalls were not preformed due to GM advising us that our vehicle was not next to get it done. Throughout ownership the vehicle has slipped out of gear two other times. We took it in each time and were told it shouldn’t happen again and they could not replicate. GM did an inspection after and fixed recalls and told us they would not assist us with damage or any compensation.

The contact owns a 2020 Cadillac CT5. The contact stated that the check engine warning light was illuminated. The contact had noticed an oil leak and that the battery charge was abnormally low. The contact received an alert from OnStar pertaining to the critically low battery. Additionally, the contact noticed that there was an abnormal squishing sound coming from the dashboard, and the contact believed that the sound was coming from an animal that had intruded into the vehicle. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The vehicle was taken to a tire center where all four TPMS sensors were replaced. The failure mileage was approximately 75,000.

Vehicle showed error on the dash for all various systems. It told me those systems required service. I parked the truck and it locked me out of it. OnStar could not open the doors, they kept telling me the truck was unlocked. My app could not open the doors. I called roadside and they showed me how to remove the cover on drive side handle and insert the manual key. The lock turned but the vehicle would not unlock due to the automatic doors. We had to insert an airbag and Jimmy open the door by hooking the interior door handle. The issue is this vehicle will lock you out of your car in an emergency. With the key you cannot unlock the doors. Luckily I only had dinner stuck in the car. I have little children and my fear is they will be locked in the truck if this happens. In the event of an emergency there is no way to get into the truck without smashing windows. The running boards in this mode disappear which makes it even more challenging to break the window and get over and inside. This is a very serious and dangerous design by Cadillac on the Escalade 2025.

While on low beam, the headlights are WAY too dim. Apparently, this is a common and well known problem. I just purchased this car, have replaced the bulbs, checked the voltage and cleaned the lens. I cannot see to drive at night on low beam.

Manual transmission: Shift from 1st to 2nd can be difficult at times and can only experience partial engagement of 2nd gear causing grinding and/or popping out of gear when releasing the clutch pedal along with loss of thrust.

Vehicle has a known condition with many same year make and model that could cause the engine coolant thermostat to open at a lower temperature than intended. This condition has occurred. As a result the Malfunction Indicator Lamp (Check Engine Light) illuminates and a diagnostic trouble code is set and “steering assistance reduced” appear. The engine cooling fans also run after the engine is switched off. A recent bulletin has been posted to the 2021 Cadillac XT6 but is present in our 2020 as well. Upon calling the dealer our VIN was not on said recall/bulletin.