2021 Cadillac XT6 Fuel system Problems
- Complaints
- 4about this part
- Share
- 19%of 21 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the fuel system of the 2021 Cadillac XT6, 19% of the 21 complaints for this model year. 1 recall campaign on record is filed under a similar system.
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.
“Your site shows no recalls. I got a recall for a repair I had to have done a few months ago. I just got the recall notice from GM, but when I called to inquire about a reimbursement, they state the recall was released in 10/2025. Even though your site says there was no recall at the time.”
NHTSA complaint #11747724, filed 2026-07“The problem is the fuel pump control module is faulty and broke twice now. The car was purchased in 2021, new. Within months the fuel pump control module failed while I was driving in traffic, in an elementary school zone with children all around. I tried to drive through an intersection when without warning the car abruptly stopped causing the cars behind me to swerve to avoid a collision. Good samaritans had to push it far out of the way due to the children crossing. …”
NHTSA complaint #11530823, filed 2023-07“Car started and ran at idle for 5 minutes. 10 minutes later when attempting to restart, the engine churned for several seconds then ran for about 2 seconds and cut out. Press to Start button remained showing green and would not respond to being pressed. The car was stationary in my garage; this would have been extremely dangerous if it happened on the highway. It seems to be a complete failure of the fuel system on a 2021 model with under 27,000 miles”
NHTSA complaint #11617101, filed 2024-09“The vehicle's check engine light came on late afternoon and then started with a delayed turn over, but not actually starting thr following day. The vehicle had to be towed to the dealership. The technician and service advisor commented immediately that it is likely the fuel pump control module. With the commentary about the likely cause was that this is a widespread issue among GM vehicles. Thankfully, the vehicle was at home when it stopped starting but the transition from check engine to stopping operation was almost immediate.”
NHTSA complaint #11559826, filed 2023-12Related recalls
- 21V422000Jun 3, 2021General Motors, LLC. (GM) is recalling certain 2021 Cadillac XT5, XT6, and GMC Acadia vehicles. The fuel supply lines may be improperly attached and seated.Covers: Cadillac XT6 2021, GMC Acadia 2021, Cadillac XT5 2021
Related service bulletins
- 11028909Feb 19, 2026Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control…
- 11028382Feb 5, 2026Emission Recall. Additional VINs moved to Open status.
- 11027870Jan 29, 2026Emission Recall. Additional VINs Moved to ‘Open’ Status
- 11027666Jan 15, 2026Emission Recall. Fuel Pump Power Control Module. Additional VINs Moved to ‘Open’ Status
- 11026626Dec 17, 2025Emission Recall. Additional VINs moved to Open status.
- 11024191Oct 9, 2025Emission Recall. Population Expansion.
- 11023730Oct 3, 2025Emission Recall. Fuel Pump Power Control Module.
- 11023093Sep 11, 2025Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control…
- 11019378Apr 12, 2025This service bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Malfunction Indicator Lamp (MIL) Illuminated…
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
Fuel system: other model years
Other parts of the 2021 Cadillac XT6
5 complaintsEngine
5 complaintsBack-over prevention (rear camera)
4 complaintsOther or unknown
3 complaintsSteering
3 complaintsForward collision avoidance
2 complaintsBrakes
1 complaintsEngine cooling
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 Cadillac XT6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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