2020 GMC Acadia.
The 2020 GMC Acadia is better than average by owner complaints: 39 complaints in its first 3 years and a Lemon Index of 54, where 100 is the average car. Owners complain most about electrical, it has 6 recalls, and it gets 21 to 24 mpg combined. The best GMC Acadia year is 2013.

Before you buy. What matters most for this car.
How serious. Out of 106 owner complaints, owners reported:
Every GMC Acadia year. 2020 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 1K to 61K miles on the car (22 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
Recalls 6
- back over prevention 2022
The rearview camera coaxial cable connectors may have been crimped improperly, causing the rearview camera to fail or function intermittently.
- tires 2021
The affected tires were cured for too long during production.
- tires 2020
The vehicles may have been manufactured with Continental tires that were overcured.
Show all 6 recalls
- transmission & drivetrain 2020
The start/stop accumulator endcap may have missing bolts.
- fuel system, gasoline 2020
The fuel pump's jet nozzle may have a plastic burr remaining from the manufacturing process, possibly causing a blocked nozzle and an insufficient fuel supply to the engine.
- airbags 2020
The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems GMC told dealers about
GMC sent dealers 885 repair notes for this car. The ones about its biggest problems:
- This Preliminary information communicates to perform a transmission fluid drain and fill to…
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Government investigations
- ClosedRear-view camera failure2022
NHTSA looks into a problem when enough owners report it. Many end in a recall.
Safety

Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| GMC Acadia SUV FWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ |
| GMC Acadia SUV AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ |
Fuel cost and engines
About $2700–3050 a year in fuel (EPA estimate). Engines: 2.0L 4-cyl, 2.5L 4-cyl, 3.6L 6-cyl.
In owners' words
front and rear camera not working blind spot indicator not working side mirrors warning of oncoming vehicles not working radio not working
2020 GMC Acadia owner · NHTSA complaint 11551153
More owner reports
navigation system stops working / all cameras stop working give a triangle with exclamation in the middle / radio also shuts down
NHTSA complaint 11475437
Quick answers
Is the 2020 GMC Acadia reliable?
Yes, better than average by government complaints. It drew 1.9× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 54; 100 is average, lower is better). The best GMC Acadia year by this measure is 2013.
What are the most common 2020 GMC Acadia problems?
In owner complaints to the government, the parts named most are electrical (28%), automatic emergency braking (21%) and transmission & drivetrain (18%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2020 GMC Acadia have?
6 safety recalls (latest: back over prevention). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2020 GMC Acadia get?
21 to 24 mpg combined, depending on the engine (EPA estimate).
Is the 2020 GMC Acadia safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
At what mileage do 2020 GMC Acadia problems start?
Half of the owners who gave a mileage reported the problem between 1,100 and 61,800 miles. The middle report was at 9,500 miles, from 22 complaints.
Does the 2020 GMC Acadia have transmission problems?
Transmission and drivetrain issues make up 18% of its owner complaints.
How much does the 2020 GMC Acadia cost in fuel a year?
About $2700 to $3050 a year, by the EPA's current estimate.
What engines does the 2020 GMC Acadia have?
2.0L 4-cyl, 2.5L 4-cyl, 3.6L 6-cyl.
What GMC Acadia year is better than the 2020?
By owner complaints per car sold, the best recent years are 2013, 2016 and 2015.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works