GMC Acadia Reliability: Common Problems & Most Dependable Years

With its more-than-ample cargo space, turbocharged engine, and optional AWD capability, the Acadia is a solid pick for buyers looking for both comfort and utility.

But is the GMC Acadia a good car in terms of reliability? This article is here to help you answer that question, identify common GMC Acadia issues, and identify the best year for GMC Acadia.

Are GMC Acadias Reliable?

The Acadia has had a troubled reputation for reliability in its nearly two decades of production. Owners have reported various components breaking down only after a few years of use and are often difficult and expensive to repair.

Fortunately, recent model years have seen significant improvements in durability and ease of maintenance, but it still falls short of its competitors. JD Power gives the Acadia a ‘Great’ score for reliability at 82/100, while Consumer Reports sees the newer models to have average reliability compared to other similar SUVs.

RepairPal also hands the Acadia a rating of 3 out of 5, which is slightly lower than the average 3.5 rating for midsize SUVs.

What Are the Most Common Issues with GMC Acadias?

The Acadia has had its share of mechanical and electrical issues, with several being serious enough for General Motors (GM) to issue recalls. Some of the more common GMC Acadia problems include:

Powertrain Control Module Error

GMC Acadias fitted with certain V6 engines have been known to trigger the check engine light with one or more of the following engine codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and P0391. This can usually be traced back to outdated powertrain control module (PCM) software, although there were also cases where it was caused by excessive camshaft end play for one or both cylinder heads. In both instances, the vehicle will have to be taken to the dealership for appropriate repairs.

Affected Model Years:

• 2007
• 2008
• 2009
• 2010
• 2011
• 2012

Transmission Fault

Acadias with a 6-speed automatic transmission may suddenly experience harsh shifting or slipping and loss of reverse gear. This is typically caused by a broken 35R wave plate, which must be replaced and the remaining debris cleaned from the transmission assembly.

Affected Model Years:

• 2007
• 2008
• 2009
• 2010
• 2011
• 2012
• 2013
• 2015

Timing Chain Issues

The 3.6-liter V6 engine in the first-generation Acadia has often been reported to have timing chain issues that began with recurring check engine lights that weren’t taken seriously by repair outlets but led to sudden engine failure.

Affected Model Years:

• 2007
• 2008
• 2009
• 2010
• 2011
• 2012
• 2013
• 2014
• 2015
• 2016
• 2017

Stabilitrak Malfunction

The Stabilitrak traction control system’s malfunction alert has been a frequent headache for Acadia owners, especially those with earlier models. There are even GMC Acadia Stabilitrak recall rumors, although these remain unfounded.

Repairs for this issue range from restarting the engine to replacing the battery or steering wheel sensor.

Affected Model Years:

• 2007
• 2008

Detaching Windshield Seal

GM has issued a recall in select GMC Acadia models due to improper installation of the windshield, which might cause it to detach while driving. Dealers are instructed to inspect the windshield and reapply primer and urethane sealant as needed. If the windshield is damaged, it will also be replaced for free.

Affected Model Year:

• 2023

Defective Transmission Gear

A GMC Acadia recall has also been issued on certain models due to a defect in the transmission sun gear, which may cause one of the transmission shafts to detach from the transmission. GM has instructed dealers to change the sun gears free of charge.

Affected Model Year:

• 2023

What are the Best Model Years for the GMC Acadia?

The following Acadia model years are considered the best in terms of reliability. These models are known for having the least amount of customer complaints and recalls and for resolving most of the issues that plagued earlier models.

• 2016
• 2019
• 2022