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2021 GMC Acadia problems

What owners reported to NHTSA, at what mileage, and every safety recall for this model year.

154owner complaints
2safety recalls
8involved a crash

Also reported: 0 fires, 4 people injured, 0 deaths. Each complaint is counted once even if it lists several components.

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Most reported problems

Complaints by component. One complaint can name more than one component, so these add up to more than 154.

Electrical system39
Usually 3,725–59,500 miles (middle half of 4 reports with mileage)
Parts named: Instrument panel › speedometer/odometer (1)
Engine29
Usually 24,194–36,978 miles (middle half of 4 reports with mileage)
Fuel/propulsion system26
No mileage given in these reports
Unknown or other21
No mileage given in these reports
Service brakes18
Usually 26,000–26,000 miles (middle half of 1 reports with mileage)
Power train17
Usually 2,156–4,082 miles (middle half of 3 reports with mileage)
Parts named: Automatic transmission › torque converter (1)
Steering17
Usually 27,792–27,792 miles (middle half of 1 reports with mileage)
Air bags10
Usually 8,100–40,000 miles (middle half of 3 reports with mileage)
Back over prevention7
Usually 12,750–32,500 miles (middle half of 3 reports with mileage)
Parts named: Rearview system braking (4); Warnings (3); Sensing system › camera (1)
Forward collision avoidance7
Usually 64,000–64,000 miles (middle half of 1 reports with mileage)
Parts named: Automatic emergency braking (6); Warnings (1)

When problems show up

Reports by odometer reading at the time of the problem, top components. Each bar is a 25,000-mile band, labeled by where it starts (0 = 0–25k miles). Reports without mileage are left out.

Electrical system

4 reports with mileage · median 31,400 miles
025k50k75k100k125k150k175k200k+

Engine

4 reports with mileage · median 34,572 miles
025k50k75k100k125k150k175k200k+

Safety recalls (2)

Recalls that cover the 2021 GMC Acadia. Some apply only to certain trims or build dates. This page cannot tell whether a specific car's recall work was done.

Check a specific VIN's open recalls on nhtsa.gov

Back over prevention › sensing system › camera

Campaign 22V709000 · 2022-09-22 · 95,231 vehicles

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…

Full recall text and remedy

Summary: 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.

Consequence: 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.

Fuel system, gasoline › delivery › hoses, lines/piping, and fittings

Campaign 21V422000 · 2021-06-03 · 572 vehicles

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.

Full recall text and remedy

Summary: 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.

Consequence: 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.

Questions to ask the seller

Any battery drain, dashboard warning lights, or electrical repairs? Test every switch, screen, and power accessory before buying.

39 owner complaints mention the electrical system.

Has the engine had any repairs, oil leaks, or check-engine lights? Ask for the invoices and listen for knocking or ticking on a cold start.

29 owner complaints mention the engine.

Any stalling, hesitation, loss of power, or fuel smell? Ask whether fuel-system parts were replaced and get the receipts.

26 owner complaints mention the fuel or propulsion system.

When were the brakes last serviced? On the test drive, check for pulsing, grinding, a soft pedal, or ABS warnings.

18 owner complaints mention the brakes.

Has the transmission been serviced or repaired? On the test drive, watch for slipping, delayed engagement, or harsh shifts.

17 owner complaints mention the transmission or drivetrain.

Has the open recall work been done? Ask for dealer service records, and check the VIN on nhtsa.gov/recalls.

NHTSA lists 2 recall campaigns for this model year.

Other GMC Acadia years

Owner complaints per model year (2010–2022). Older cars have had more time to collect reports.

Compare all years on one chart

Source: NHTSA complaints file (FLAT_CMPL, updated 2026-10-21) and NHTSA recalls file. Page generated 2026-10-22.

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