2020 Cadillac CT4 Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 25%of 8 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2020 Cadillac CT4, 25% of the 8 complaints for this model year. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I had two incidents with the Cadillac CT-4 in February and then again in April of 2026 of driving on I-75 at a highway speed of about 70 MPH when the vehicle suddenly downshifted and the engine revving at at very high RPM. The vehicle slowed down suddenly and it felt for a moment that I could not control the speed. 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. …”
NHTSA complaint #11752429, filed 2026-07“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).”
NHTSA complaint #11742821, filed 2026-06Related recalls
- 25V148000Mar 6, 2025General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed…Covers: Cadillac CT4 2020–2021, Chevrolet Camaro 2020–2022, Cadillac CT6 2019–2020 +1 more
Related service bulletins
- 11018568May 27, 2025Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause…
- 11018535May 22, 2025Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause…
- 11019516Apr 17, 2025This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- 11015336Mar 7, 2025Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause…
- 11014622Mar 2, 2025This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- 11014621Mar 2, 2025This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- 11014565Feb 13, 2025This bulletin helps aid the tech in possible noise that may be normal or abnormal depending on the concern noted.
- 11014353Feb 12, 2025This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012009Nov 27, 2024This bulletin helps aid the tech in possible transmission noise that may be normal or abnormal depending on the concern noted.
Transmission and drivetrain: other model years
Other parts of the 2020 Cadillac CT4
3 complaintsBrakes
2 complaintsAir bags
1 complaintsFuel system
1 complaintsOther or unknown
1 complaints
← All problems reported for the 2020 Cadillac CT4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology