AI DamageCadillac XT6: problems, complaints, bulletins
Summary for the Cadillac XT6 across 7 model years: 110 owner complaints and 1,162 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Electrical system 24% of all complaints
- 2 Powertrain 21% of all complaints
- 3 Engine 14% of all complaints
- 4 Backover prevention 14% of all complaints
- 5 Forward collision avoidance 10% of all complaints
- 6 Fuel/propulsion system 8% of all complaints
- 7 Service brakes 6% of all complaints
- 8 Steering 5% of all complaints
- Electrical system: 26 complaints (24% of all); manufacturer bulletins for this component: 846.
- Powertrain: 23 complaints (21% of all); manufacturer bulletins for this component: 415.
- Engine: 15 complaints (14% of all); manufacturer bulletins for this component: 398.
- Backover prevention: 15 complaints (14% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 75.
- Forward collision avoidance: 11 complaints (10% of all); manufacturer bulletins for this component: 50.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl 2021–2025
- 3.6 L · petrol · 6 cyl 2020–2025
- automatic, 9-speed 2020–2025
Drive: FWD, AWD
Symptoms owners describe
How many of the 110 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 26 | 0 | 846 |
| Powertrain | 23 | 0 | 415 |
| Engine | 15 | 0 | 398 |
| Backover prevention | 15 | 1 | 75 |
| Forward collision avoidance | 11 | 0 | 50 |
| Fuel/propulsion system | 9 | 0 | 65 |
| Service brakes | 7 | 0 | 131 |
| Steering | 5 | 0 | 103 |
| Visibility | 5 | 0 | 59 |
| Lane departure | 5 | 0 | 16 |
| Structure | 3 | 0 | 154 |
| Engine and cooling | 2 | 0 | 470 |
| Fuel system | 2 | 0 | 92 |
| Wheels | 1 | 0 | 153 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
My wife was backing at less than 2 and hit a truck behind her. She said no alarms sounded, the only thing she heard was noise of hitting a truck behind her. No police called or report made.
The air bags did not deploy. The contact and her great-nephew were transported to her residence with the assistance of police patrol. The contact later sought medical assistance and was informed that she had sustained muscle spams from the upper body to the chin and headaches.
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 my radiator. The car only has 61k miles!
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, however, GM is refusing to cover the cost of repairs.
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.
The contact stated that while accelerating from a complete stop and driving below 30 MPH, the vehicle shuddered, hesitated, and jerked. The vehicle was taken to the dealer, where it was diagnosed with burned transmission fluid and excessive metal shavings inside the fluid.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Backover prevention. Rear camera and parking sensors after a rear impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
- This preliminary information is for technicians that may see DTCs that are history and should not perform…
- This Preliminary information communicates to dealers a procedure to reset the radio
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator…
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance
- This Preliminary information communicates to the technicians a diagnostic tip if a technician loses…
- This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
- This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is…
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
- The 2020 Cadillac XT6 is The Real Replacement for Your Old 3-Row SRXamount per author: 73,500 UNSPECIFIED_DOLLAR
- From Crash to Cash: 2021 XT6 Flipped for Profit #copart #iaaiamount per author: 122,000 UNSPECIFIED_DOLLAR
- Will a 2020 Cadillac XT6 hold its value? #cadillac #car #xt6 #luxurycars #appraisals
- 2020 Cadillac XT6 Salvage Rebuild for my wife
- 2021 Cadillac XT6 3.6 Random Misfire Cyl 2 (Injector Seal Problem)
- How to reset maintenance / oil life on a 2023 Cadillac XT6 #automobile
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.