69,000 mile oil change I was told i needed to spend thousands of dollars on repairing an oil leak b/c my Cam carrier is leaking. Cadillac has a know issue with this repair and refuses to stand behind it's product. Numerous complaints already on forums and yet they charge thousands to fix. A top name brand that can't produce a vehicle past 69000 miles without a major issue. I wanted to make it known about the ongoing issue by Cadillac. So sad.
Engine & cooling
Cadillac CT4 Engine problems by year
11 complaints filed with NHTSA about the Cadillac CT4's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
Engine complaints by model year
Latest CT4 engine complaints
While driving at highway speeds on the freeway in my 2021 Cadillac CT4-V, the vehicle experienced a sudden, catastrophic loss of propulsion. Without warning, the transmission dropped out of gear as if it were in neutral. I completely lost the ability to accelerate, creating an immediate, life-threatening hazard as I was left stranded and blocking high-speed freeway traffic. Only after the mechanical failure occurred did the check engine light illuminate. The vehicle was towed to Cadillac Dealership. The service...
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department confirmed that the vehicle suffered from the known defective transmission control valve covered under GM Special Coverage Bulletin N242480631 and tied to NHTSA Campaign 25V148. The dealership ordered the replacement valve body but aborted the repair after confirming that the control valve's failure caused massive internal fluid leaks and total mechanical destruction of the transmission assembly. The manufacturer is currently denying coverage for the complete transmission replacement, despite the fact that the total failure was consequential damage directly caused by the federally recalled, component defect.
The contact owns a 2024 Cadillac CT4. The contact stated that while attempting to park the vehicle, there was an abnormal engine oil burning odor around the exterior of the vehicle. No warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed with a camshaft carrier reseal leak. The vehicle was not repaired due to the cost. The manufacturer was not made aware of the failure. The failure mileage was approximately 85,305.
The vehicle shudders and loses power when accelerating fast. My wife almost got hit when she pulled out in traffic the car stalled out. It is due to the cylinder deactivation (afm).
I was driving slowly into my driveway to prepare for turning into my garage. The car rapidly accelerated on it's own causing me to crash into the garage door next to the one I intended to park in. I have video from my security system.
valve body failed and was supposedly repaired. I had the car 1 day and valve body failed again. My car has been in the shop since November 4, 2024 with no estimated time of repair because no parts are available. I was told they would replace the transmission. That has not happened yet. No parts available. My car has been disable for 6 months.
The contact owns a 2024 Cadillac CT4. The contact stated that while driving at an undisclosed speed, the low oil pressure warning light illuminated. The vehicle was taken to a local dealer where the rear main seal of the engine was replaced. The contact stated that after the replacement of the rear main seal, while driving at an undisclosed speed, there were abnormally loud sounds coming from the front end of the vehicle, near the engine compartment. The vehicle was taken to the local dealer again where unknown...
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parts were found loosened in the engine from the previous repair. The vehicle was repaired; however, the contact stated that several days later, while driving, the vehicle lost braking functionality. The contact was able to safely drive the vehicle back to the residence. The vehicle was then towed back to the local dealer however, the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 5,200. The VIN was not available.
The contact owns a 2020 Cadillac CT4. The contact stated while driving 70 MPH, on several occasions, the vehicle failed to accelerate, hesitated, and then stalled. The vehicle was towed on three occasions to the local dealer, who was unable to determine the cause of the failure. There were no DTC codes retrieved. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 45,000.
Engine and transmission for the second time in 90 days apart. Supposedly be a new part. I don't think so.
The contact owns a 2022 Cadillac CT4. The contact stated that while driving approximately 60-65 MPH, the power steering and power brakes failed to operate as needed. The check engine and the crash warning lights were illuminated. The contact coasted to the side of the road while depressing the brake pedal with an excessive amount of force. The vehicle was stopped by bumping on a nearby curb. Once the vehicle was stopped, the contact turned off and restarted the vehicle and was able to regain power steering and...
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power brakes functionality. The check engine warning light remained illuminated. The failure had occurred twice. The vehicle was taken to the dealer where it was diagnosed that the vehicle was showing 24 failed Communication codes; however, the exact cause of failure was unknown. The battery was replaced by the dealer after the first failure however, after the failure recurred no additional repairs had been performed. The manufacturer was made aware of the failure a complaint was filed. The contact was referred to the dealer for further assistance. The failure mileage was 9,000.
The vehicle shut off while driving on the feeder of the highway. Vehicle was no longer responsive and had to be towed to Central Cadillac of Houston; where later it was determined that the vehicle needed a new engine. The Vehicle is a 2023 with less than 5,000 miles on it. Currently General Motors/Cadillac is not acknowledging that a buy back is needed for the vehicle, even though it meets requirements for the Texas Lemon Law.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data