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What 7 owners told NHTSA about the 2024 Cadillac CT4

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (7)Crash / fire / injury (1)Engine (2)Transmission & drivetrain (2)Visibility & wipers (2)Driver assistance (1)Electrical system (1)Engine & cooling (1)Lights (1)Speed control (1)

Newest first · 7 complaints

Jun 18, 2026Engine & cooling

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.

NHTSA ODI 11745010

Jun 18, 2026Transmission & drivetrain

I took my car to Fields Cadillac Jacksonville for routine oil change and to rotate/balance tires. I was inform via video message that I had an oil leak coming from the camshaft carrier reseal and requires immediate attention.

NHTSA ODI 11745021

Jan 29, 2026Electrical systemSpeed controlEngineCrash

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.

NHTSA ODI 11714146

Dec 10, 2025Transmission & drivetrain

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.

NHTSA ODI 11704318

Apr 5, 2025LightsVisibility & wipersDriver assistance

My car doesn't advise when other car is closed

NHTSA ODI 11652911

Jul 9, 2024Engine

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 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.

NHTSA ODI 11600508

Feb 5, 2024Visibility & wipers

In November 2023 I purchased this vehicle. The dealership was made aware of the ripples within a few days of driving the vehicle. The windshield was defective and had to be replaced. The staff at the dealership did see the ripples on the windshield and agreed to replace the windshield. On December 14, 2023, the dealership replaced the original windshield even though they had the windshield since November 22, 2023. Within a few days of driving the vehicle, I noticed it also has ripples on the 2nd windshield. I have been to the dealership two times, and no one can see ripples. I have taken the vehicle to an automotive glass company who confirmed the ripples in the windshield. On February 5, 2024, I took the vehicle to a different dealership. The appointment was scheduled by a General Motors representative. The staff at the second dealership cannot see anything and took pictures to send to General Motors. The ripples in the windshield are distracting when driving in the daytime and nighttime.

NHTSA ODI 11570062

Working with the data? Download all 7 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2024 Cadillac CT4 verdict →