2021 Cadillac XT5 Electrical system Problems
- Complaints
- 6about this part
- Share
- 30%of 20 total for the year
- Median mileage
- 113,240miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the electrical system of the 2021 Cadillac XT5, 30% of the 20 complaints for this model year. Where a mileage was given, the median is 113,240 miles.
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.
“The Side Detection System warning light came on. I found that other vehicles in our blind spots were not be recognized by the system. The warning lights were not being activated on the side mirrors. The system was repaired at the dealership at a cost of $865.43. When speaking withe the service technician he said this is happening quite frequently. They found three wires that were corroded and two more that showed signs future issues.”
NHTSA complaint #11760426, filed 2026-08“The contact owns a 2021 Cadillac XT5. The contact stated that while driving approximately 50 MPH, the infotainment screen was touched but went black and failed to respond. The vehicle was turned off and restarted at the next traffic light, and the infotainment screen was touched and remained black and failed to respond. The vehicle was taken to an independent mechanic and was diagnosed; however, the diagnostic result was not provided. Due to the failure, the HVAC system, GPS, Bluetooth, Back Over Prevention, and Lane Keep Assist features became inoperable. …”
NHTSA complaint #11722196, filed 2026-03, 113,240 miles“At a red light in traffic, it suddenly shut off the engine, emergency brakes went on, multiple warning lights were on (Low Bat, Low fuel {full of fuel}, lower passenger window, etc..), totally immobilized itself by not being able to start the car or push it with the brakes on! 81 year old female driving and if the car did this at highway speed it could have been a catastrophe! It appeared everything else in the car was working but had 'self immobilized'!”
NHTSA complaint #11532274, filed 2023-07“Sudden Engine Shutdown and Loss of Steering Assistance in Traffic — 2021 Cadillac XT5 While operating our 2021 Cadillac XT5 in traffic, the vehicle suddenly and unexpectedly stopped running. The engine shut down, the instrument panel went dark except for a warning stating Low Battery, and steering locked up. The emergency flashers would not work but blue-tooth did. The AC was working fine until shutdown but has not worked since. The car is still in the Cadillac dealership with no reasons given for the shutdown. …”
NHTSA complaint #11771715, filed 2026-10Related service bulletins
- 11022031May 2, 2025This Service Bulletin provides information on the rearview camera transitioning from Dark to light and the adjustment time period of 20 seconds.
- 11019547Apr 22, 2025This service bulletin provides a procedure to test and replace the battery distribution fuse block if found the cause of the DTC and electric coolant pump inoperative.
- 11019017Apr 10, 2025This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017508Apr 3, 2025This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake…
- 11017443Apr 2, 2025This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11016948Mar 14, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of…
- 11017035Mar 13, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive…
Electrical system: other model years
Other parts of the 2021 Cadillac XT5
5 complaintsSteering
4 complaintsEngine
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsBack-over prevention (rear camera)
2 complaintsBrakes
2 complaintsFuel system
2 complaintsEngine cooling
1 complaintsLane departure
1 complaints
← All problems reported for the 2021 Cadillac XT5
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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