Most common 2021 Cadillac XT4 problems
Share of the 12 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Cadillac XT4 complaints by model year
2021 Cadillac XT4 recalls (1)
Seat belts › Rear/other › Retractor
General Motors, LLC (GM) is recalling certain 2016-2021 Chevrolet Malibu and 2019-2021 Cadillac XT4 vehicles. The rear seat belt retractors may be improperly secured with loose or missing fasteners.
Remedy: Dealers will inspect and tighten the rear seat belt retractors, as necessary, free of charge. Owner notification letters were mailed on September 17, 2021.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2021 Cadillac XT4:
Air Bag Malfunction
On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM).
What 2021 Cadillac XT4 owners say
Fuel & propulsion system
The contact owns a 2021 Cadillac XT4. The contact stated while driving 40-45 MPH, the vehicle suddenly stopped, and was shifted into park but failed to restart. There were no warning lights illuminated. The vehicle was towed to the local dealer where it was diagnosed and determined that the fuel pump control module and battery needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 34,536.
there is a recall on the 2021 cadillac xt4, fuel pump control module, N252516900, but my vin is not included. My vehicle seems to be having the same issue. The dealer has been unable to diagnose as it has been happening very sporadic and I don't drive often. Issue first occurred, vehicle would not start in June 2025, clicking noise, happened few times in December and now seems to occur more frequent. car will initially start but will stall and fail to start. vehicle usually starts and engine light stays on, but then engine light will go off within hours. Dealer indicated no error codes were stored. had onstar run a diagnostic today when I had issues and identified a fuel management system issue. In researching I located the recall notice and ran my vin.
Electrical system
The contact owns a 2021 Cadillac XT4. The contact stated that while driving in stop-and-go traffic, the contact rear-ended a vehicle in front. The contact crashed the vehicle at approximately 5 mph; however, the collision caused severe front end damage to the vehicle. The air bag did not deploy and all electrical safety features failed to operate after the collision. There were no injuries reported and a police report was filed. The radiator began to leak as a result of the accident, therefore, the vehicle was towed to an independent body shop. The manufacturer was notified of the failure and offered no assistance. The vehicle had been repaired. The failure mileage was approximately 1,800.
The contact owns a 2021 Cadillac XT4. The contact stated while driving 40-45 MPH, the vehicle suddenly stopped, and was shifted into park but failed to restart. There were no warning lights illuminated. The vehicle was towed to the local dealer where it was diagnosed and determined that the fuel pump control module and battery needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 34,536.
2021 Cadillac XT4 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 9-speed automatic | FWD | 24 / 30 / 26 |
| 2.0L 4-cyl turbo | 9-speed automatic | AWD | 22 / 29 / 24 |
EPA ratings. Class: Small SUV.
Frequently asked questions
Is the 2021 Cadillac XT4 a good car?
Based on 12 owner complaints filed with NHTSA, the 2021 XT4 rates average: about as many complaints as a typical year of the XT4 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Cadillac XT4?
The fuel & propulsion system — 5 complaints, 42% of all complaints for this model year, most often about delivery › fuel pump › control/drive module. Next are the electrical system (3) and driver assistance (2).
How many recalls does the 2021 Cadillac XT4 have?
There is 1 recall for the 2021 Cadillac XT4, the most recent from August 20, 2021 (retractor). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Cadillac XT4?
Years to avoid or approach with caution: 2024 and 2023. See the full Cadillac XT4 years comparison.
At what mileage do 2021 Cadillac XT4 problems happen?
The median mileage reported in complaints is about 35,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.