2021 Cadillac Xt4 problems, complaints & recalls
Most-reported problem areas: Fuel/Propulsion System (4) · Power Train (1) · Fuel System, Gasoline:delivery:fuel Pump:control/Drive Module (1)
🧭 Reliability snapshot
Compared against other Cadillac Xt4 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (1)
Seat Belts:rear/Other:retractor 2021-08-20 · campaign 21V649000 · 402 vehicles
Defect: 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.
Risk: An improperly secured seat belt retractor may not function properly in a crash, increasing the risk of injury.
Fix: Dealers will inspect and tighten the rear seat belt retractors, as necessary, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212333380.
Service bulletins (686)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-10-26 · GM Update N25-250552 · Over The Air
• improvements to onstar functionality.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-08-20 · PIC6551C · Service Bulletin/Repair Instructions
this preliminary information communicates to dealer to perform a mec reset for wireless projection issues
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-06-23 · PIT5966F · Service Bulletin/Repair Instructions
this preliminary information communicates an issue with an ota pending message still displayed after an ota event and how to reset/clear the message.
Showing the 6 most recent of 686 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-07-10 · Exterior Lighting“dtrl failed and signal burned/melted i was unable to pass state inspection …”
2026-05-10 · Fuel/Propulsion System“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 fe…”
2025-09-02 · Fuel/Propulsion System“vehicle stalled on the road,coming to a total stop,very dangerous because of the trafic.vehicle cranks but not start.fuel pump power control module failed,code p203f.take to vera cadillac dealer for repair .this happened 2 times ,at 13765 milles and 29342 milles…”
2025-06-04 · Unknown Or Other“driving down the highway yesterday, i believe that the sunroof on my cadillac xt4 exploded. it was a hot day and i heard a loud bang. my sunroof shattered and no rocks or other external debris to be found. …”
2025-05-01 · Fuel System, Gasoline:delivery:fuel Pump:control/Drive Module · 34,536 mi“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…”
2025-03-11 · Fuel/Propulsion System“fuel pump module failed twice. there was no warning lamps, messages or other symptoms prior to the failure. the first time i was driving the second time the car was parked and did not start. see below for details. safety: thankfully i was not driving 70+mph down a busy highway when the car shut down. given the past recall, the number of cadillac o…”
2024-08-15 · Power Train · 45,000 mi“the contact owns a 2021 cadillac xt4. the contact stated that while stopped at a traffic signal, the signal turned green; however, when the accelerator pedal was depressed, the vehicle hesitated before responding as needed. the contact stated that the vehicle lunged into motion. the contact stated that the failure was intermittent at first but beca…”
2024-02-07 · Back Over Prevention · 32,000 mi“the contact owns a 2021 cadillac xt4. the contact stated that while his wife was reversing and exiting the residential driveway, the back over prevention sensor activated. the contact stated the back over prevention warning light illuminated. the contact stated that there were no obstacles behind the vehicle. the vehicle was taken to the dealer, …”
2022-12-01 · Electrical System“when i turn on the vehicle, it will have no sound - audio, turn signal, and most importantly and concerning, seatbelt warning chime. the electrical issues also extend to the hvac sustain have been trying to get this resolved with two dealerships and cadillac directly for 1.5 almost 2 years. the issues began about three weeks after my lease began. c…”
2022-01-15 · Air Bags“safety restraint warning light came on. took to dealership. they had for 3 days claimed it was repaired. light came back on 2 days later. dealership has now had my vehicle 10 days, stating i need a new side drivers airbag. they do not know when it will arrive. i have seen other complaints in this model for faulty airbag sensors/units.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.