2021 Cadillac XT6 problems and complaints
Owners have filed 21 complaints with NHTSA about the 2021 Cadillac XT6. The most-reported areas: Engine (5), Electrical System (5), Fuel/Propulsion System (4).
Key takeaways
- 21 owner complaints on file with NHTSA.
- 0 involve a crash, 0 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 5 | 24% |
| Electrical System | 5 | 24% |
| Fuel/Propulsion System | 4 | 19% |
| Back Over Prevention | 4 | 19% |
| Steering | 3 | 14% |
| Unknown Or Other | 3 | 14% |
| Forward Collision Avoidance | 2 | 10% |
| Power Train | 1 | 5% |
| Engine And Engine Cooling | 1 | 5% |
| Service Brakes | 1 | 5% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Cadillac XT6
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Oil filter
- Engine air filter
- Cabin air filter
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Cadillac XT6 SUV AWD | 5/5 | 5/5 | 5/5 | 4/5 |
| 2021 Cadillac XT6 SUV FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine - filed 2026-10-20
I noticed a water sloshing sound behind the dash when first starting out for about a month. I didn’t get any warning lights or notice anything leaking under the car but when I checked under the hood the coolant reservoir was empty. I made appointment at GM dealership and they found I had a leak along the side seam of m...
Steering,engine - filed 2026-10-13
DTC P0128 engine coolant thermostat to open at a lower temperature than intended. The Check Engine Light appeared, a Steering warning appeared on my information screen, and the engine cooling fan continued to run excessively after turning off. I understand there is a Special Coverage N252508350 for this exact issue, ...
Steering,electrical System - filed 2026-10-11
On September 15,2026, my vehicle experienced a catastrophic los of power steering assist accompanied by severe heavy steering. Please review General Motors TSB 20-NA-215 & TSB 17-NA-158 both addressing this issue. My 2021 vehicle has a build date of September 19, 2020 which falls "directly" in the time frame covered ...
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More for the 2021 Cadillac XT6
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.