2020 GMC Acadia

Vehicle Specs & Maintenance Data

Engine Size
Engine
3.6L V6
Oil Type & Capacity
5W-30 Full Synthetic (6 qts)
Transmission
Automatic 9-spd
Wheel Torque
140
ft-lbs

The 2020 GMC Acadia maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your GMC Acadia.

For oil changes, the 2020 GMC Acadia takes 5W-30 Full Synthetic motor oil with a capacity of 6 quarts. Brake fluid type is DOT 3, the recommended coolant is Dex-Cool (OAT), and transmission fluid is Dexron VI. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.

When mounting wheels on the GMC Acadia, torque the lug nuts to 140 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.

Owners of the 2020 GMC Acadia have reported 5 common issues including "Fuel Tank Rollover Valve Seal Failure (AWD Models)", "Left-Rear Suspension Toe Link Improperly Tightened" and "9-Speed Transmission Problems". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.

There are 6 NHTSA safety recalls on file for the 2020 GMC Acadia. Check the Recalls tab below for full details.

Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.

The 2020 GMC Acadia uses 5W-30 Full Synthetic motor oil (6 qt capacity), requires lug nuts torqued to 140 ft-lbs, takes DOT 3 brake fluid.

2020 GMC Acadia Specifications
Motor Oil5W-30 Full Synthetic
Oil Capacity6 qt
Lug Nut Torque140 ft-lbs
Brake FluidDOT 3
CoolantDex-Cool (OAT)
Transmission FluidDexron VI
Transmission Fluid
Fluid Type
Dexron VI
Shop
Coolant
Fluid Type
Dex-Cool (OAT)
Shop
Brake Fluid
Fluid Type
DOT 3
Shop
Washer Fluid
Windshield
Shop

Manufacturer-recommended maintenance schedule for the 2020 GMC Acadia. Always verify intervals against your owner's manual.

Service Item
Interval
Engine Oil & Filter
7,500 mi / 12 mo
Dexos1 5W-30 synthetic, 5.3 qt (2.5L) or 6 qt (3.6L V6)
Tire Rotation
7,500 mi / 6 mo
Rotate every oil change
Cabin Air Filter
22,500 mi / 24 mo
Located behind glove box
Engine Air Filter
45,000 mi / 48 mo
Inspect at 22,500 mi
Brake Fluid
45,000 mi / 36 mo
DOT 3
Transmission Fluid
45,000 mi
6-speed (2.5L) or 9-speed (3.6L) automatic; Dexron HP
Coolant
150,000 mi
Dex-Cool OAT; then every 30,000 mi
Spark Plugs
97,500 mi
Iridium-tipped
Serpentine Belt
90,000 mi
Inspect at 60,000 mi
Battery
60 mo
Inspect annually
DTC Code Lookup

Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2020 GMC Acadia.

Common problems reported by 2020 GMC Acadia owners, with recommended fixes and estimated repair costs.

1

Fuel Tank Rollover Valve Seal Failure (AWD Models)

On 2022 Acadia AWD models, the fuel tank rollover valve may not provide a proper seal in the event of a rollover crash. A failed rollover valve seal can result in fuel leaking from the tank during a rollover, significantly increasing the risk of fire. The defect is not detectable by the owner under normal driving conditions.

Solution

NHTSA Recall N222366070. Dealers inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. All work performed free of charge.

Est. Cost: $0 (recall repair)
2

Left-Rear Suspension Toe Link Improperly Tightened

The left-rear suspension toe link fastener may not have been tightened properly during assembly. A loose or separated toe link can cause rear wheel misalignment, unpredictable handling, excessive tire wear, and in severe cases, loss of vehicle control. Owners may notice the vehicle pulling to one side or unusual rear tire wear patterns.

Solution

NHTSA Recall N222364330. Dealers inspect the left-rear suspension and replace the fastener if it is loose or missing. The repair is performed free of charge.

Est. Cost: $0 (recall repair)
3

9-Speed Transmission Problems

The 9-speed automatic transmission suffers from hesitation, rough shifting, slipping gears, grinding, and in some cases complete transmission failure. Owners describe the vehicle jerking during low-speed acceleration and the transmission hunting for gears during highway driving. The transmission may also display delayed engagement from a stop.

Solution

Transmission fluid service and TCM software update. Replacement of torque converter for shudder-related issues. In cases of complete failure, the transmission must be replaced. Check for TSB updates specific to the 9T65 transmission calibration.

Est. Cost: $300 (fluid service) - $5,000 (transmission replacement)
4

Rearview Camera Blank Screen

The rearview camera may intermittently display a blank or black screen when the vehicle is placed in reverse, providing no rear visibility. This defeats the purpose of the legally required backup camera system and significantly increases the risk of backing accidents, especially in parking lots.

Solution

NHTSA Recall 22V210000. Dealer performs a software update to the camera system module. In some cases, the camera unit itself or the wiring harness may need replacement. Over-the-air (OTA) updates may also address the issue.

Est. Cost: $0 (recall) - $500 (camera replacement)
5

Lane Departure and Forward Collision System False Alerts

The lane departure warning and forward collision avoidance systems generate frequent false alerts, with the lane departure system being the most common complaint filed with NHTSA for the 2022 Acadia. False forward collision warnings cause the brakes to engage unexpectedly, startling the driver and potentially causing rear-end collisions from following vehicles.

Solution

Dealer recalibrates the forward-facing camera and radar sensor. Software updates to the advanced driver assistance system (ADAS) modules. Cleaning the windshield sensor area can reduce false triggers. In persistent cases, the camera module may need replacement.

Est. Cost: $0 (calibration) - $1,200 (camera module replacement)

6 NHTSA safety recalls for the 2020 GMC Acadia. Check your VIN at NHTSA.gov

1

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Campaign: 22V709000 Date: 22/09/2022

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.

2

TIRES

Campaign: 21V115000 Date: 25/02/2021

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.

Consequence

Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.

Remedy

GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.

3

TIRES

Campaign: 20V684000 Date: 05/11/2020

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.

Consequence

Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.

Remedy

GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.

4

POWER TRAIN:AUTOMATIC TRANSMISSION

Campaign: 20V668000 Date: 29/10/2020

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

Consequence

Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.

Remedy

GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.

5

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Campaign: 20V639000 Date: 15/10/2020

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. 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.

Consequence

Insufficient fuel supply can result in an engine stall without warning, increasing the risk of a crash.

Remedy

GM will notify owners, and dealers will replace the fuel pump module. The recall began November 16, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202314760.

6

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

Campaign: 20V446000 Date: 30/07/2020

General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. 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.

Consequence

If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.

Remedy

GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.

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Acadia — Other Model Years
2026202520242023202220212019201820172016
See Also
2020 GMC Acadia Lug Nut TorqueBest Oil for 2020 GMC AcadiaAll Vehicles Using 5W-30 Full Synthetic OilAll Vehicles Using DOT 3Oil Change Guide: 2020 GMC AcadiaWiper Replacement: 2020 GMC Acadia