2021 Cadillac XT6 Reliability Data: Problems & Recalls
Best The 2021 Cadillac XT6 ranks best among the 6 model years covered, with a complaint index of 0 and 18 complaints logged. It carries 2 recalls, covering rearview camera cabling and fuel supply lines, but no crashes, fires, injuries, or deaths were reported.
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
YearToAvoid Scorecard
- Complaint Index
- 0/100
- #6 of 6 XT6 years
- Verdict
- Best
- vs. other years of this model
- Complaints
- 18
- unique NHTSA reports
- Recalls
- 2
- distinct NHTSA campaigns
- Crashes
- 0
- reported in complaints
- Fires
- 0
- Injuries
- 0
- Top issue
- Collision Avoidance & Cameras
- NHTSA overall rating
- 5 / 5 ★
- EPA combined MPG
- 22
- 20 city / 26 hwy
- Injuries / deaths
- 0 / 0
Top 2021 Cadillac XT6 problems
Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.
- Collision Avoidance & Cameras6 (33%)
- Electrical System4 (22%)
- Engine4 (22%)
- Fuel System4 (22%)
- Other3 (17%)
- Brakes1 (6%)
- Steering1 (6%)
- Transmission & Powertrain1 (6%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
What owners report
- Rearview and surround-vision cameras fail to display, sometimes showing the wrong image or triggering a "Park Assist Block" message while backing up.
- Owners report the fuel pump control module failing, in one case causing the vehicle to stall abruptly in traffic.
- Front brakes vibrate and produce a grinding or screeching noise when applied.
- The engine has cranked but failed to start or has cut out seconds after starting, in one case while parked in a garage.
- A dash warning for "Steering Assist Reduced" appeared along with a missing engine temperature readout and a coolant fan that kept running after shutdown.
- Even after the camera-cable recall repair, some owners say the surround-vision problem returned and required a control module replacement.
2021 Cadillac XT6 recalls
2 NHTSA recall campaigns list this model year.
- NHTSA 22V709000Sep 22, 2022Collision Avoidance & Cameras95,231 vehicles
Back over prevention: sensing system: camera
General Motors, LLC (GM) is recalling certain 2020-2021 Cadillac XT5, XT6, and GMC Acadia vehicles equipped with the optional Surround Vision feature. The rearview camera coaxial cable connectors may have been crimped improperly, causing the rearview camera to fail or function intermittently.
Risk: An inoperative rearview camera can reduce the driver's rear visibility, increasing the risk of a crash.
Remedy: Dealers will replace the coaxial cables, free of charge. Owner notification letters were mailed January 18, 2023. Owners may contact Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N222378380.
- NHTSA 21V422000Jun 3, 2021Fuel System572 vehicles
Fuel system, gasoline:delivery:hoses, lines/piping, and fittings
General Motors, LLC. (GM) is recalling certain 2021 Cadillac XT5, XT6, and GMC Acadia vehicles. The fuel supply lines may be improperly attached and seated.
Risk: Improperly attached and seated fuel supply lines may loosen or separate, causing a fuel leak and increasing the risk of a fire.
Remedy: Dealers will inspect and replace fuel supply lines as necessary, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Cadillac customer service at 1-800-458-8006 and GMC customer service at 1-800-462-8782. GM's number for this recall is N212335590.
2021 Cadillac XT6 fuel economy and fuel cost
- City
- 20 MPG
- Highway
- 26 MPG
- Combined
- 22 MPG
- Annual fuel cost (EPA)
- $3,275
- 15,000 mi/yr
- Fuel
- Premium
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2021 compared with other XT6 years
Frequently asked questions
- Is the 2021 Cadillac XT6 reliable?
- Among XT6 model years, 2021 ranks best, with a complaint index of 0 and 18 complaints logged with NHTSA. No crashes, fires, injuries, or deaths were reported for this year.
- What problems does the 2021 Cadillac XT6 have?
- The top problem area is Collision Avoidance & Cameras, covering 6 of 18 complaints (33%), followed by Electrical System, Engine, and Fuel System issues at 4 complaints each (22% each).
- Does the 2021 Cadillac XT6 have any recalls?
- Yes, two recalls: one for rearview camera coaxial cable connectors that may have been crimped improperly, and one for fuel supply lines that may be improperly attached and seated. Neither is a do-not-drive recall.
- How does the 2021 XT6 compare to other years?
- 2021 has a complaint index of 0, the lowest among the 6 years with data, beating 2020 (100), 2022 (80), 2024 (60), and 2023 (40); only 2025 also earns a Best verdict with an index of 20.
- What is the fuel economy of the 2021 Cadillac XT6?
- EPA rates it at 22 mpg combined (20 city / 26 highway), with an estimated annual fuel cost of $3,275.