What are the most common GMC Acadia problems?
According to Au7o's analysis of 1,340+ owner reports, the 2020 GMC Acadia has 6 documented issues. The most frequently reported are: 3.6L V6 Internal Water Pump Failure and Coolant Leak, Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440), Fuel Pump Mixing-Tube Burr Causing Engine Stall at Low Fuel (Recall 20V446 / GM N202314760). Of these, 3 are rated critical and should be addressed promptly.
Is the GMC Acadia reliable?
The 2020 GMC Acadia has 6 known issues documented across 1,340+ owner reports. 3 issues are rated critical: 3.6L V6 Internal Water Pump Failure and Coolant Leak and Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440) and Fuel Pump Mixing-Tube Burr Causing Engine Stall at Low Fuel (Recall 20V446 / GM N202314760). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common GMC Acadia problems?
Repair costs for known GMC Acadia issues range from $0 to $5,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 3.6L V6 Internal Water Pump Failure and Coolant Leak, typically costs $1,500-$5,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2007-2023 GMC Acadia 3.6L V6 Internal Water Pump Failure and Coolant Leak?
The 3.6L V6 engines (all generations) in the Acadia use a timing chain-driven internal water pump located inside the engine block rather than a traditional externally-driven pump. The internal water pump impeller is plastic and is prone to cracking or separating from the shaft be… Repairs typically run $1,500-$5,500. Severity: high.
What is the 2019-2020 GMC Acadia Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440)?
On 2019-2020 GMC Acadia models (part of a broader 2018-2020 GM crossover campaign) equipped with auto start/stop, the transmission accumulator endcap may have been assembled with missing or loose bolts. This can allow a transmission fluid leak that progresses to harsh operation a… Severity: high.
What is the 2020 GMC Acadia Fuel Pump Mixing-Tube Burr Causing Engine Stall at Low Fuel (Recall 20V446 / GM N202314760)?
Certain 2020 GMC Acadia vehicles (along with the Buick Enclave, Cadillac XT5/XT6 and Chevrolet Traverse) were built with a fuel pump assembly containing burrs inside the mixing tube. The burrs can prevent fuel transfer from the secondary to the primary side of the tank, so at low… Severity: high.
What is the 2017-2025 GMC Acadia 9T65 9-Speed Transmission Harsh Shifts and Hesitation?
The second-generation Acadia (2017+) uses the GM 9T65 9-speed automatic transmission which shares known issues with the Chevrolet Traverse and Blazer. Common complaints include harsh 1-2 upshifts, hesitation between 5-15 mph, lurching on light throttle in stop-and-go traffic, and… Repairs typically run $0-$3,500. Severity: medium.
What is the 2020-2021 GMC Acadia Surround Vision Rearview Camera Coaxial Cable Crimp Failure - Black/Lost Backup Image (Recall 22V709 / N222378380)?
2020-2021 GMC Acadia vehicles equipped with the optional Surround Vision package have rearview camera coaxial cable connectors that may have been crimped improperly at the factory. The poor crimp causes the backup camera image to fail or work only intermittently - owners report t… Severity: medium.
What is the 2017-2021 GMC Acadia Infotainment System Lockup, Black Screen and Random Reboots (2nd-Gen IO/IOR Head Unit)?
Second-generation GMC Acadias with the GM IO/IOR infotainment head unit suffer freezes, unresponsive touchscreens, sudden black screens and random reboots. When the unit locks up, owners lose the radio and hands-free calls, and the backup camera and on-screen controls can become… Severity: medium.
