Model year 2021 · Standard Sport Utility Vehicle 4WD, Standard Sport Utility Vehicle 2WD

2021 GMC Acadia: recalls, fuel economy and safety ratings

EPA rates the 2021 GMC Acadia at 21–25 mpg combined across 5 versions. NHTSA lists 2 safety recalls and 155 owner complaints for this model year. Its best NHTSA overall crash-test rating is 5 out of 5 stars.

Safety recalls

EPA combined mpg

21–25

NHTSA overall rating

5/5

Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT

Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a GMC dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.

2021 GMC Acadia recalls

NHTSA's recall file lists 2 safety recalls for the 2021 GMC Acadia, newest first.

Back over prevention: Sensing system: Camera

NHTSA 22V709000 Reported Sep 22, 2022

Filed by: General Motors, LLC (manufacturer recall no. N222378380)
Units affected: 95,231 (estimate)
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.
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.

Full recall record on nhtsa.gov

Fuel system, gasoline: Delivery: Hoses, lines/piping, and fittings

NHTSA 21V422000 Reported Jun 3, 2021

Filed by: General Motors, LLC (manufacturer recall no. N212335590)
Units affected: 572 (estimate)
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.
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.

Full recall record on nhtsa.gov

Recall summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.

2021 GMC Acadia fuel economy by version

EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.

2021 GMC Acadia EPA fuel economy
Version	Engine	Transmission	Drive	Fuel	City/Hwy/Comb	Fuel cost/yr	CO2 g/mi
Acadia AWD	2.0L 4-cyl turbo	Automatic 9-spd	All-Wheel Drive	Regular	22/27/24 mpg	$2,800	362
Acadia AWD	3.6L 6-cyl	Automatic 9-spd	All-Wheel Drive	Regular	19/26/21 mpg	$3,200	413
Acadia FWD	2.0L 4-cyl turbo	Automatic 9-spd	Front-Wheel Drive	Regular	22/29/25 mpg	$2,700	349
Acadia FWD	2.5L 4-cyl	Automatic 9-spd	Front-Wheel Drive	Regular	21/27/23 mpg	$2,900	382
Acadia FWD	3.6L 6-cyl	Automatic 9-spd	Front-Wheel Drive	Regular	19/27/22 mpg	$3,050	402

Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.

EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.

2021 GMC Acadia crash-test ratings

NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.

2021 GMC Acadia NHTSA 5-Star Safety Ratings
Tested vehicle	Overall	Frontal	Side	Rollover	Rollover risk	Forward collision warning
2021 GMC Acadia SUV AWD	5 stars	5 stars	5 stars	4 stars	15.1%	Optional
2021 GMC Acadia SUV FWD	5 stars	5 stars	5 stars	4 stars	16.4%	Optional

Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.

Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.

2021 GMC Acadia owner complaints

Owners have filed 155 complaints with NHTSA about the 2021 GMC Acadia, most recently on Oct 25, 2026. 8 mention a crash, 0 a fire, 4 injured people and 0 deaths. These are unverified reports; a complaint is not proof of a defect.

Most-cited components in 2021 GMC Acadia complaints
Component named in complaints	Mentions
Electrical system	38
Engine	30
Fuel/propulsion system	26
Unknown or other	21
Service brakes	18
Steering	18
Power train	16
Air bags	10
Forward collision avoidance: Automatic emergency braking	6
Back over prevention: Rearview system braking	4

Source: NHTSA consumer complaint files (complaints received since January 1, 2015). One complaint can name several components.

Had a safety problem with your vehicle? You can report it to NHTSA at nhtsa.gov/report-a-safety-problem.

Other GMC Acadia model years

GMC Acadia by model year
Year	Combined	Recalls	Complaints	Overall rating
2027 Acadia	21–22 mpg	—	—	—
2026 Acadia	21–22 mpg	1	10	5/5
2025 Acadia	21–23 mpg	0	69	5/5
2024 Acadia	21–23 mpg	0	61	5/5
2023 Acadia	21–25 mpg	4	49	5/5
2022 Acadia	21–25 mpg	3	52	5/5
2020 Acadia	21–24 mpg	6	106	5/5
2019 Acadia	20–23 mpg	2	388	5/5
2018 Acadia	20–23 mpg	2	398	5/5
2017 Acadia	17–23 mpg	4	706	5/5
2016 Acadia	17–18 mpg	4	236	5/5
2015 Acadia	19 mpg	4	243	5/5

All GMC Acadia years compared · Decode a VIN

Other 2021 GMC models

2021 GMC Canyon 2021 GMC Sierra 2021 GMC Terrain 2021 GMC Yukon

Sources

Recalls: NHTSA recall flat file (FLAT_RCL_POST_2010), dated Oct 27, 2026, plus a live check of api.nhtsa.gov in your browser.
Complaints: NHTSA consumer complaint flat files (COMPLAINTS_RECEIVED), counts only — we do not republish complaint text.
Crash tests: NHTSA 5-Star Safety Ratings API.
Fuel economy: FuelEconomy.gov vehicles file (U.S. DOE and EPA), dated Sep 29, 2026.
NHTSA, EPA and DOE do not endorse OpenVIN. Vehicle names identify vehicles only; OpenVIN is not affiliated with GMC.