2021 GMC Acadia recalls, problems & safety ratings
NHTSA lists 2 recalls for the 2021 GMC Acadia and 154 owner complaints. The most-reported problem areas are electrical system (39), engine (29), fuel/propulsion system (26). It earned a 5-star overall NHTSA safety rating. EPA-rated fuel economy is 21–25 mpg combined, depending on engine.
The 2021 ranks #7 of 14 Acadia model years for fewest complaints (2012–2025), with fewer complaints than the average year (241). It has 2 recalls vs. an average of 3.2 per model year.
Recalls 2
Every recall NHTSA lists for the 2021 GMC Acadia. Not every recall applies to every vehicle, so check your VIN. Recall repairs are free at a franchised dealer.
Back over prevention · sensing system · camera
Problem: 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.
Fix: 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.
Fuel system, gasoline · delivery · hoses, lines/piping, and fittings
Problem: 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.
Fix: 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.
Common problems
From complaints owners filed with NHTSA. Complaints aren't verified, but patterns across hundreds of owners point to known weak spots.
Most-reported problem areas
By the numbers
Recent owner reports
The magnetic chest clip does NOT latch. It can easily be pulled apart by hand. It compromises my child’s safety tremendously by allowing the harness straps to slip off of her shoulders in event of a crash leading to a projected infant. Upon doing further research and posting in my moms group on facebook i’ve found countless reports dating back to 2023 where this magnetic che…
The contact owns a 2021 GMC Acadia. The contact stated that while driving at 30 MPH, traffic stopped abruptly, and the brake pedal was depressed to the floorboard; however, the vehicle continued to accelerate while the Forward Collision Avoidance warning feature activated with a red warning light on the instrument panel. The contact attempted to steer off the road to avoid a co…
exhaust flex pipe is cracked. Causes fumes of gas to be released through the crack. inspected by GMC Repair shop Vibrating noise started, then a few days later the smell of gas, and now yes the Engine light is on. This has been on going for about 3 weeks.
Safety ratings
2021 GMC Acadia SUV AWD
2021 GMC Acadia SUV FWD
Fuel economy
EPA ratings for common configurations of the 2021 GMC Acadia.
Acadia AWD
Auto 9-spd · 4 cyl · 2.0 L · Turbo
Regular
Acadia AWD
Auto 9-spd · 6 cyl · 3.6 L
Regular
Acadia FWD
Auto 9-spd · 4 cyl · 2.5 L
Regular
Acadia FWD
Auto 9-spd · 4 cyl · 2.0 L · Turbo
Regular
Other model years
Questions
How many recalls does the 2021 GMC Acadia have?
NHTSA lists 2 recalls for the 2021 GMC Acadia, most recently for back over prevention · sensing system · camera (09/22/2022). Recall repairs are free at a franchised dealer. Enter your VIN to check whether a recall applies to your vehicle.
What are the most common problems with the 2021 GMC Acadia?
Based on 154 owner complaints filed with NHTSA, the most-reported areas are electrical system (39), engine (29), fuel/propulsion system (26).
Is the 2021 GMC Acadia safe?
The 2021 GMC Acadia earned a 5-star overall rating in NHTSA's 5-star safety ratings.
Is the 2021 a good year for the GMC Acadia?
The 2021 ranks #7 of 14 Acadia model years for fewest complaints (2012–2025), with fewer complaints than the average year (241). It has 2 recalls vs. an average of 3.2 per model year.
What gas mileage does the 2021 GMC Acadia get?
EPA ratings for the 2021 GMC Acadia range from 21 to 25 mpg combined, depending on engine and drivetrain.
Own a 2021 GMC Acadia in South Carolina?
Our mobile mechanics diagnose and fix the problems above at your home, office or fleet lot in Lexington, Columbia and the Midlands, with dealer-grade scan tools.
Related vehicles
Sources: NHTSA recalls, complaints and 5-Star Safety Ratings APIs; EPA fueleconomy.gov. Data retrieved October 21, 2026. NHTSA model names used: ACADIA, Acadia.