Purchased used with 30k miles and under factory bumper to bumper warranty. Noted noise when turning right slowly into parking space from front suspension as well as pop sound while going over speed bumps. Dealer replaced 3 axles (2 driver side) and confirmed noise present. Also replaced strut assembly in front which did not assist. Suspension issue unresolved to date and GM Field Tech suggests “operating to spec”. The main issue noted is the leerching forward between gears when braking to a stop. It’s as if car is sliding into each gear , learching while brakes applied, until stopped. This could cause accident and harm to occupants. Transmission is the 9 speed T950. Dealer replaced valve body and fluids and then Field Tech revisited and said “operating to spec”. It is unknown if issue related to transmission, electronics shift coding , or torque converter. I currently own 4 GM products and have owned over 20 without this issue.

Source: NHTSA complaint ODI #11764899 · view all complaints for this vehicle at nhtsa.gov

This is my second Cadillac XT 4 in two years and both have experienced the same thing. As I'm driving and come to a light to stop, the entire vehicle system goes black and cuts off. This has happened to me know 4 times, were the vehicle becomes disable in the middle of the road, during heavy traffic and almost hit several times from the rear. Each time I was in tears, thinking I was going to die and would call OnStar for assistance. The vehicle would not start, keep making this clicking sounds as if it's trying. The vehicle would automatically go into 'Park' and will not release for any other gear. I was told the Fuel Management System, that I was told was not suppose to happen in the 2024 model like it did in my 2022 model. My app also reports a "Transmission System Failure" for a brand new vehicle almost a year old & 7700 miles on it. I can't deal with GMC & my life over their products. I want to get rid of the vehicle and never purchase another one of their products. Highly disappointed & the lack of concern from GMC about their customers.

Source: NHTSA complaint ODI #11642562 · view all complaints for this vehicle at nhtsa.gov

The automatic emergency braking system suddenly engages without any obstacles/pedestrians in the roadway causing the vehicle to completely stop. The vehicle is at the dealership at this time; it is unknown if the dealer can confirm the issue. The vehicle has not been inspected by the manufacturer. There was a warning light flashing directly before the incident(s).

Source: NHTSA complaint ODI #11764847 · view all complaints for this vehicle at nhtsa.gov

The vehicle has a chronic defect causing rapid, repeating front-end suspension and steering assembly failures. The right front strut and mount failed and were replaced under warranty twice in 2025 (at 29,968 miles and 35,740 miles). In May 2026, the left front strut and mount failed and were replaced. Two days after picking up the vehicle, a cascading mechanical failure occurred when the left front CV axle boot split, covering the wheel well in grease and requiring a complete CV axle shaft replacement. Following these consecutive teardowns, the dealer omitted a mandatory safety wheel alignment. The vehicle was returned with a severe lateral steering pull and a steering wheel forced to the 1 o'clock tracking position while driving straight, causing extreme handling instability on public roads. The manufacturer refused to authorize a warranty alignment to fix this safety hazard, forcing an out-of-pocket expense at a separate facility to make the car safely drivable.

Source: NHTSA complaint ODI #11745708 · view all complaints for this vehicle at nhtsa.gov

I am submitting this complaint to report a significant safety system failure in my 2025 Cadillac XT4 during an accident that occurred on April 12, 2025, in Dallas, Texas. During the incident: •The Anti-lock Braking System (ABS) did not activate, and I was unable to stop in time to avoid a collision. •Neither the driver nor passenger airbags deployed, despite sufficient impact that should have triggered deployment. •OnStar Automatic Crash Response did not activate, nor was I contacted by any emergency response service through the vehicle. None of the vehicle’s safety systems functioned during this event, despite being standard factory-installed features. My XT4 had no warning lights or diagnostic messages indicating any malfunction prior to the crash. This failure closely resembles previous complaints noted in NHTSA filings (e.g., ABS sensor failures, OnStar module failures, and the 2025 XT4 passenger airbag recall). I am extremely concerned that this may point to a broader defect within the model line’s safety infrastructure, including collision sensors, electronic communication systems, or airbag deployment logic. I respectfully request that NHTSA investigate whether a defect exists in the braking or airbag systems, particularly where no safety features activate in a crash. I would be willing to provide repair records, crash photos, and allow the vehicle to be inspected if needed. Thank you for your attention and for helping to ensure driver safety through proper oversight.

Source: NHTSA complaint ODI #11654492 · view all complaints for this vehicle at nhtsa.gov

Driver's and passengers' front windows. When driving in sunlight the windows are hazy/milky. Inspected by dealership. There are no warning lamps, messages or other systems 1st appeared July 29, 2024 Have brought the vehicle on numerous occasions to the dealership for this issue. When driving during daytime in sunlight both driver's window and front passenger window are hazy/milky. Dealership states they cannot replicate the issue. There is nothing to replicate, the haze and milky substance are on the windows.

Source: NHTSA complaint ODI #11625310 · view all complaints for this vehicle at nhtsa.gov

GM/Cadillac removed the Front Parking Assist and cameras from the 2024 XT4 Cadillac. We were unaware that the vehicle did no have this now basic feature and almost bumped into another vehicle. This feature was in all other years of this vehicle and GM decided to leave it out without notifying purchasers of this. Why would any major manufacturer make a vehicle less safe than pervious versions. GM needs to retrofit all models of the 2024 XT4 with Front Parking Assist to ensure a child or other object in front of the car does not get run over.

Source: NHTSA complaint ODI #11542157 · view all complaints for this vehicle at nhtsa.gov