What are the most common GMC Acadia problems?
According to Au7o's analysis of 3,400+ owner reports, the 2007-2025 GMC Acadia has 4 documented issues. The most frequently reported are: 3.6L V6 Timing Chain Stretch and Premature Failure, Electric Power Steering (EPAS) Failure and Loss of Assist, 3.6L V6 Internal Water Pump Failure and Coolant Leak. Of these, 3 are rated critical and should be addressed promptly.
Is the GMC Acadia reliable?
The 2007-2025 GMC Acadia has 4 known issues documented across 3,400+ owner reports. 3 issues are rated critical: 3.6L V6 Timing Chain Stretch and Premature Failure and Electric Power Steering (EPAS) Failure and Loss of Assist and 3.6L V6 Internal Water Pump Failure and Coolant Leak. 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 Timing Chain Stretch and Premature Failure, typically costs $2,500-$5,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year GMC Acadia is the most reliable?
Reliability varies across model years of the GMC Acadia. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2007-2025 GMC Acadia with 4 documented issues documented across 3,400+ owner reports.
What is the 2007-2016 GMC Acadia 3.6L V6 Timing Chain Stretch and Premature Failure?
The 3.6L LLT and LFX V6 engines in 2007-2016 Acadia are notorious for premature timing chain stretch and guide failure, typically between 60,000-120,000 miles. The engines use three separate timing chains (primary and two secondary), and all three are subject to premature stretch… Repairs typically run $2,500-$5,500. Severity: high.
What is the 2007-2016 GMC Acadia Electric Power Steering (EPAS) Failure and Loss of Assist?
The 2007-2016 Acadia uses an electric power steering rack that is prone to intermittent and permanent failure. The steering assist can fail suddenly with no warning, requiring significantly more physical effort to steer — a dangerous condition at highway speeds. NHTSA received ov… Repairs typically run $800-$3,200. Severity: high.
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 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.
