2020 Cadillac CT5 Transmission and drivetrain Problems
- Complaints
- 15about this part
- Share
- 38%of 39 total for the year
- Median mileage
- 12,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 15 complaints about the transmission and drivetrain of the 2020 Cadillac CT5, 38% of the 39 complaints for this model year. Where a mileage was given, the median is 12,000 miles. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Lockhart Cadillac Service Department committed warranty fraud by charging me on multiple occasions for repairs that should have been covered under GM/Cadillac 2025 Transmission Recall & Special Extended Warranties. The transmission has continued to deteriorate. I took the vehicle in on July 1, 2026 for recall service and was told it needed a valve body replacement. However, they are demanding again that I pay for it and refusing to submit it as a recall repair. …”
NHTSA complaint #11750953, filed 2026-07“For no apparent reason my vehicle is shifting itself into Neutral while driving. The car will suddenly completely slow down to a stop and in order to restart the car, I have to put it in park. It doesn't matter what speed or the road condition, it simply comes to a slow stop because it is no longer in driving mode, it has shifted itself into Neutral. The recall has been serviced and after more than 10 days of being in 2 different Cadillac service centers, I am advised they are unable to simulate the issue, thus the issue is not resolved. …”
NHTSA complaint #11694212, filed 2025-10“While driving my 2020 Cadillac CT5 at highway speeds, the vehicle suffered a sudden and dangerous total loss of motive power. The transmission completely failed without warning, creating an immediate, severe safety hazard as I was forced to navigate across multiple active lanes of high-speed highway traffic without acceleration.The vehicle was towed to an authorized Cadillac dealership. The technician's diagnostic inspection confirmed that the internal transmission pump drive gear completely shattered, sending catastrophic metal debris throughout the entire transmission system. …”
NHTSA complaint #11740017, filed 2026-05“this vehicle has had multiple check engine failures it has been in for service six times in a matter of months. In September I had Service Traction control/StabiliTrack lights come on and the car losses of engine power. I had it serviced again in October for the same issue it was at the dealership for 20 days all they did was clear the code and drove it 38 miles, including the technician driving it home to see if the issue could be duplicated. After the 20th day they advised me to pick up my vehicle and return it when the light were actively on. …”
NHTSA complaint #11560832, filed 2023-12“The contact owns a 2020 Cadillac CT5. The contact stated that while driving at various speeds, the vehicle shuddered and experienced hard shifts intermittently. There was no warning light illuminated. The contact stated that the failure progressively worsened, and the vehicle made an abnormally loud sound while driving. The check engine warning light and the traction control warning light were illuminated. …”
NHTSA complaint #11721714, filed 2026-03, 578 milesRelated 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 CT5 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…
- 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…
- 11014565Feb 13, 2025This bulletin helps aid the tech in possible noise that may be normal or abnormal depending on the concern noted.
- 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.
- 11011993Nov 27, 2024This service bulletin provides repair information to correct customer concerns of Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when…
- 11011989Nov 27, 2024This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
- 11011205Oct 28, 2024This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- 11009463Sep 25, 2024This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC)…
Transmission and drivetrain: other model years
Other parts of the 2020 Cadillac CT5
11 complaintsElectrical system
8 complaintsEngine
7 complaintsBody and structure
5 complaintsLatches, locks and linkages
2 complaintsSteering
2 complaintsVehicle speed control
2 complaintsWheels
2 complaintsAir bags
1 complaintsElectronic stability control
1 complaintsEngine cooling
1 complaintsFuel system
1 complaints
← All problems reported for the 2020 Cadillac CT5
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