2018 Cadillac XT5 Electrical system Problems
- Complaints
- 14about this part
- Share
- 21%of 66 total for the year
- Median mileage
- 35,670miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 14 complaints about the electrical system of the 2018 Cadillac XT5, 21% of the 66 complaints for this model year. Where a mileage was given, the median is 35,670 miles. 1 a fire, according to the filers.
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.
“2nd time this issue occurred. 1st time was in 2019 and it took two weeks for the dealership to figure out it was the battery. While driving the car, the electronics go crazy, the engine stops for a split second, brakes are lost for a split second, cruise control turns off, every possible alarm displays on the dash. The dash beeps, all of the lights flash, the speed/pressure/temperature needles go to 0, the air condition turns off, etc. All of this occurred while I was driving 60mph on a highway. I quickly pulled off to the side of the road. …”
NHTSA complaint #11328651, filed 2020-06, 35,670 miles“During the two years we have owned this vehicle, it has completely shut down. It usually happens when the vehicle is stopped or coming to a stop. Today 4.17.2023 it happened at 67 mph as I was accelerating to highway speed. The vehicle shut down for 2-3 seconds then restarted. The vehicle decelerated very hard, almost as if it were in a collision.”
NHTSA complaint #11517539, filed 2023-04“I was driving on the freeway, came to a stop as traffic increased, then the car shut off m. I had no power, could not get out of the vehicle, no hazards, no tail lights, nothing. I had a complete panic attack, I thought I was going to die. I called OnStar from my cell, they could even locate me. After 30 mins, calling 911, texting the representative from the dealership in which I purchased the car, it turned back on. Either the car was shut off with a signal or there is a serious hazardous issue that needs to be addressed.”
NHTSA complaint #11555562, filed 2023-11“While waiting at a light, then the car shut off. Lossing all power. I could not get out of the vehicle, no hazards, no lights, nothing. After several pulls of the door handle I was able to open the door but the hazard light was not able to come one. After 4 attempts to engage break to push start the vehicle on ethe brake locked up and would not disengage. Total screen black out, no power no hazards. After some time, the brake released screen activated and I was able to press the brake and try to start the car again. It did not work but was now able to turn on hazards. …”
NHTSA complaint #11695654, filed 2025-10“Driving down the road and my 2018 Cadillac XT5 started on fire for no reason and no engine lights came on. I loss all driving control power steering in the matter of seconds and was trapped in the car waiting for cars to clear so I can run out. The car is with my insurance company the car is now a total loss and I don't think they will investigate. I called GM to make a complaint. The fireman said he had just put a fire out on the same car a week ago. I found out that we have 2 more cars in the Macomb county MI area that caught on fire in the last 3 months same type of car.”
NHTSA complaint #11466228, filed 2022-05Related service bulletins
- 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.
- 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…
- 11016946Mar 13, 2025This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11013149Jan 17, 2025This service bulletin provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option.
Electrical system: other model years
Other parts of the 2018 Cadillac XT5
15 complaintsOther or unknown
12 complaintsSteering
12 complaintsTransmission and drivetrain
11 complaintsBrakes
8 complaintsVehicle speed control
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBody and structure
3 complaintsExterior lighting
2 complaintsSeats
2 complaintsSuspension
2 complaintsTires
2 complaints
← All problems reported for the 2018 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