AI DamageCadillac CT4: problems, complaints, bulletins
Summary for the Cadillac CT4 across 7 model years: 33 owner complaints and 1,185 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Engine 30% of all complaints
- 2 Service brakes 21% of all complaints
- 3 Powertrain 18% of all complaints
- 4 Steering 18% of all complaints
- 5 Electrical system 15% of all complaints
- 6 Vehicle speed control 15% of all complaints
- 7 Forward collision avoidance 12% of all complaints
- 8 Fuel/propulsion system 12% of all complaints
- Engine: 10 complaints (30% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 348.
- Service brakes: 7 complaints (21% of all); manufacturer bulletins for this component: 88.
- Powertrain: 6 complaints (18% of all); manufacturer bulletins for this component: 436.
- Steering: 6 complaints (18% of all); manufacturer bulletins for this component: 105.
- Electrical system: 5 complaints (15% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 833.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl 2020–2026
- 2.7 L · petrol · turbo · 4 cyl 2020–2026
- 3.6 L · petrol · turbo · 6 cyl 2022–2026
- automatic, 8-speed 2020–2026
- automatic, 10-speed 2020–2026
- manual, 6-speed 2022–2026named in 2 complaints
Drive: RWD, AWD
Symptoms owners describe
How many of the 33 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 10 | 1 | 348 |
| Service brakes | 7 | 0 | 88 |
| Powertrain | 6 | 0 | 436 |
| Steering | 6 | 0 | 105 |
| Electrical system | 5 | 1 | 833 |
| Vehicle speed control | 5 | 1 | 7 |
| Forward collision avoidance | 4 | 0 | 40 |
| Fuel/propulsion system | 4 | 0 | 36 |
| Suspension | 2 | 0 | 75 |
| Visibility | 2 | 0 | 58 |
| Air bags | 2 | 1 | 36 |
| Engine and cooling | 1 | 0 | 409 |
| Exterior lighting | 1 | 0 | 77 |
| Tires | 1 | 0 | 60 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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.
Sept 4 2024 my husband was involved in a motor vehicle accident involving a gravel hauler that hit him twice once in the rear then in drivers side that cause my husband to spin out of control hitting another vehicle none of the airbags deployed My husband should have been killed or severely injured by the grace of God…
Total brake system failure. Lost almost all brake function nearly causing an accident. June 17, 2026 car was taken to dealership. Electronic Brake Control Module (EBCM), Brake Master Cylinder, Brake Pedal Retainer replacement required.
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.
The check engine light was on and the diagnostic indicated a transmission/engineer problem and to take in to service within a day. Both incidents in February and April felt the same. Both times I pulled over to the shoulder to shut the engine. I waited and in February it restarted without the engineer revving high.
Only after the mechanical failure occurred did the check engine light illuminate. The vehicle was towed to Cadillac Dealership. The service 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…
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
- This Preliminary information communicates to dealers a procedure to reset the radio
- This update contains a required software change to help improve the overall software update and…
- • Fixes to help prevent loss of audio • Better connectivity for Bluetooth and CarPlay • Improved…
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- This PI communicates the proper part numbers for transmission connectors and internal harness to prevent…
- This PI advises of a procedure for a Service Door Latch System message with No Related DTCs
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- This Preliminary information communicates to the technicians a diagnostic tip if a technician loses…
- This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.