10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
32,000 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:

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

problem #2

Jan 062015

Sierra

  • 62,000 miles
The contact owns a 2009 GMC Sierra. While driving 60 mph, the engine power suddenly reduced to 40 mph and the engine completely shut off. The engine restarted with slow acceleration and unknown warning indicators illuminated. The vehicle was taken to an independent mechanic. The technician diagnosed that the throttle position sensor was faulty. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 62,000.

- Louisa, KY, USA

Add Complaint
problem #1

Oct 142009

Sierra

  • 2,000 miles
The contact owns a 2009 GMC Sierra. The contact stated that there was a delay whenever he attempted to accelerate, once it engaged the vehicle accelerated unexpectedly. As a result he had to use both feet to engage the brakes in order to slow down the vehicle. The failure recurred causing the vehicle to crash into another vehicle. The vehicle was taken to a dealer but they offered no assistance. The vehicle was not repaired. The failure mileage was 2,000 and the current mileage was 22,000.

- Poplar Bluff, MO, USA

Add Complaint