2020 Cadillac CT5 problems & reliability
38 owner complaints filed with NHTSA for the 2020 Cadillac CT5, alongside 4 safety recall campaigns. Last verified Sep 22, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several components.
1 complaint report injuries (2 injured).
Federal crash records (FARS 2020–2023): 2020 Cadillac CT5 vehicles were involved in 5 fatal crashes with 1 occupant death. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Power Train → | 14 | 37% |
| Unknown / Other | 11 | 29% |
| Electrical System | 8 | 21% |
| Engine | 7 | 18% |
| Structure | 5 | 13% |
| Latches/locks/linkages | 2 | 5% |
| Steering | 2 | 5% |
| Vehicle Speed Control | 2 | 5% |
| Wheels | 2 | 5% |
| Air Bags | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 15 reported components →Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“The contact owns a 2020 Cadillac CT5. The contact stated that while the vehicle was parked and using the key fob to open the door, the door on the driver’s side failed to open. The failure was a recurring failure. The dealer was contacted and diagnosed the vehicle with an exterior door handle failure on the driver’s…”
Latches/locks/linkages · filed Aug 4, 2026
“Electronic door hand on the drivers side completely stopped working, with little warning. This includes the proximity unlock feature and unlocking the car with the fob. If this were to have happened to all four doors at once, it would have been impossible to enter the car without breaking the glass. This is not safe.”
Structure · filed Jul 26, 2026
“There is some type of mechanical or electrical malfunction with the door locking system. I can not unlock or enter the car using the fan or by any mechanism from outside the car. This has left my fiance & infant trapped in the car. My fiance has to reach over and manually open the driver side door from inside the…”
Unknown / Other · filed Jul 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Air Bag Malfunction
Preliminary Evaluation PE21010 · opened Apr 9, 2021 · closed Aug 24, 2023
Technical service bulletins
897 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2020 Cadillac CT5. The 10 most recent:
This PI advises of a procedure for a Service Door Latch System message with No Related DTCs
PIC6555A · Service Bulletin/Repair Instructions · issued Sep 8, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902W · Service Bulletin/Repair Instructions · issued Sep 4, 2026
PI to help diagnose A/C concern
PIT5099J · Service Bulletin/Repair Instructions · issued Jul 21, 2026
This Preliminary information communicates an issue with a replace or low FOB battery message
PIT6511 · Service Bulletin/Repair Instructions · issued Apr 25, 2026
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
PIT6425D · Service Bulletin/Repair Instructions · issued Mar 2, 2026
This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set.
PIP5841H · Service Bulletin/Repair Instructions · issued Feb 4, 2026
This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.
PIT5985K · Service Bulletin/Repair Instructions · issued Jan 27, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2020 Cadillac CT5 has 4 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2020 Cadillac CT5?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.