The contact owns a 2009 GMC Sierra. When the vehicle was started, the doors automatically locked as designed. When the vehicle was placed in the park position, the doors failed to unlock. The contact had to manually unlock the vehicle. The failure recurred on several occasions. The vehicle was taken to the dealer where it was diagnosed that the driver and passenger side door actuators needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 47,000. Updated 1/21/16

- Bryan, OH, USA

I got out of my truck, had left the keys in the ignition, walked over to get something off the ground and heard the horn blow. I walked back over to the truck to get back in and it was locked. I called on star and they couldn't unlock it so they had to send a lock-out service to unlock the truck. This has happened at least five times in the past three years, three in which on star had unlocked it.

- Shady Spring, WV, USA

In cold weather the instrument cluster does not work, the only thing that does work is the back lighting.

- Bryan, TX, USA

I' M writing in too complain about the dashboard cluster on my 2009 GMC Sierra. I see that a recall along with a lawsuit with this same issue was submitted. I have been going back and forth with GMC on this issue since 2011. They stated it was a fuse and replaced the fuse, but my dashboard along with all the gauges go out every couple of months. I was told they didn't know what the problem was but obviously they did. This issue was noted after a class action lawsuit was filed. This is a very expensive fix that should have been taken care of when it first happened in 2011. The last time my dashboard went out (while driving) was 10/14/2014.

- Hopkins, SC, USA

The contact owns a 2009 GMC Sierra. The contact stated that the vehicle would remain on after the key was removed from the ignition switch. The vehicle had not been diagnosed or repaired. The manufacturer was notified. The approximate failure mileage was 24,000.

- Susquehanna, PA, USA

Power locks quit working have to use the key to open doors.

- Saint Joseph, MI, USA

About 2 months after we purchased our pre-owned 2009 GMC Sierra denali we started having problems with the engine power and all sensors going off. The sensors start going off the stability control cuts off it says engine power reduced then doesn't want to shift and kills in middle of traffic. It will do it for a few days and then just starts working right again. So we never know when it's going to happen or where we will be. It's like it's not running on all cylinders.

- Pineville, LA, USA

After being struck from behind the passenger side rear door locks and windows would not operate. At the repair shop Texas they stated " this was not a result of the crash but a known defect. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- League City, TX, USA