Notes: Ahh, the ole' sophomore slump. The 2008 Acadia suffers from widespread transmission failure around 75,000 miles.


really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
81,695 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 GMC Acadia body / paint problems

body / paint problem

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2008 GMC Acadia Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #7

Mar 072012


  • 35,775 miles


The contact owns a 2008 GMC Acadia. The contact stated the tail gate door would opens by itself sporadically while driving. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure and current mileage was 35,775.

- Douglasville, GA, USA

problem #6

Jun 092012


  • 85,000 miles
The contact owns a 2008 GMC Acadia. The contact stated that whenever it would rain, water would enter through the sunroof and the instrument cluster. The dealer was notified who advised that they would perform a diagnostic test and inspect the failure. The vehicle was not repaired. The manufacturer was not notified of the issue. The failure mileage was 85,000.

- New Orleans, LA, USA

problem #5

May 042012


  • 49,000 miles
The contact owns a 2008 GMC Acadia. The contact stated that he noticed water on the dashboard prior to starting the vehicle. The contact then attempted to start the vehicle, but it would not start. The vehicle was successfully jump started and all of the air bag warning lights illuminated on the instrument panel. The vehicle was taken to the dealer for a diagnosis. The dealer stated that a seal needed to be placed between the firewall and cab. The vehicle was repaired. The manufacturer was not notified. The failure mileage was 49,000 and the current mileage was 52,000.

- Muskegon , MI, USA

problem #4

Jan 292012


  • 53,000 miles


The contact owns a 2008 GMC Acadia. The contact stated that there was a severe water leak coming from the moon/sun roof and into the instrument panel, causing a shortage with all of the electrical components. The vehicle was taken to the dealer who replaced the headliner that surrounded the moon/sun roof area. The replacement did not correct the failure. The manufacturer was notified who stated that the failure was caused by an engineering flaw and offered no assistance. The vehicle was taken to the dealer four times for repairs. The contact filed a claim with the manufacturer. The failure mileage was 53,000 and the current mileage was 56,000.

- Veradale, WA, USA

problem #3

Jan 192012

Acadia 6-cyl

  • miles
Bought our GMC Acadia Dec. 2011 had no issues till Jan 2012. Since then it has been back to the dealership repeatedly for seemingly linked problems. Started with just a dead battery upon further investigation found that the wiring harness was submerged in water, causing battery to short out, replaced the battery and fixed the apparent point of entry. Not two weeks later back in the shop, water pouring from the head liner (around the interior lights, sunroof moldings, and seat belt joints). Our Acadia remained at the dealership for three days with no luck of finding a leak (checked all drain lines and ran the vehicle through the water machine). Here we are again vehicle has been at the shop for a week with no luck of finding the point of intrusion; this time the water leak shorted out the entire fuse panel. After trying to find the leak for over a week, sending the vehicle to another shop to "get a fresh set of eyes on it", and contacting GM for advise (which was no help) the dealership still has been unsuccessful in locating the water leak. Not sure what to do next. All I know is we bought a $30,000 car so we wouldn't have problems and here we are with problems, expensive problems.

- Sandy, OR, USA

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problem #2

Apr 072011

Acadia 6-cyl

  • 66,000 miles
Cause code: 6021 - component damaged/cracked, reverse clutch plate replacement reading various forums, these seems to be a problem with all lambada platforms, hundreds if not thousands of transmission failures, creating a major safety concern for myself and the public. GM needs to replace these trannys with a new more durable/reliable design before someone is seriously injured or killed, its only a matter of time. Please confront GM with these complaints...thx

- Etobicoke , NY, USA

problem #1

May 202011

Acadia 6-cyl

  • 73,259 miles
2008 GMC Acadia slt has severe water leakage inside the cabin that cause significant damage to interior carpeting and panels. Electrical problems also begin to happen such as back up assist disabled, air bag light flashing, rear windshield wipers not shutting off and more I am sure will happen as water enters the cabin and areas that you cannot see. This is a potentially dangerous condition that needs to be recalled and addressed by General Motors. Fire hazards and injuries due to malfunctioning equipment might occur. There are videos and plenty of complaints from other owners on the internet of this same issue and I am shocked that no actions have been made by GM.

- Hamburg, NY, USA

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