2.1

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
73,883 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2009 GMC Sierra 3500:

Unsubscribe any time. We don't sell/share your email.

problem #1

Aug 262012

Sierra 3500 8-cyl Diesel

  • 73,883 miles
I drove my wife to the pharmacy and after pulling out of the parking lot onto palmdale road in victorville the truck went into to limp mode. The transmission locked up into park at 25mph almost causing a rear collision behind us. The GMC Sierra 3500hd 2009 came to a screeching stop causing a bit of whiplash to my wife and daughter on board. The tcm transmission control module along with the allison transmission failed causing this close accident. The vehicle is inoperable at this time. This is a dangerous defect.

- Victorville, CA, USA