I purchased the gm sts2 software and program my truck and now I have no brakes, have all lights on with calibration and rams problem I-??m sure that the calibration they provided to me, costed this problem and none off the lights are turning off, the truck lost brakes I have to stand on the paddle to stop the truck. Now I have no choice to send it the GM for there mistake. I spoke to acdelco sts2 rep. And he couldn-??t figure out the problem. And the hybrid system issue also. Both front air bag impact sensors cracks in the middle turns the light on. That-??s been a fault with all gm trucks. They need to update this problem.

- Ware, MA, USA

The contact owns a 2009 Chevrolet Tahoe. The contact stated while driving at various speeds, the vehicle would jerk, accelerate independently and stall. The contact stated that the failures all occurred on different occasions. The contact stated the service engine warning light was illuminated. The contact took the vehicle to an independent mechanic where the auxiliary transmission fluid pump and auxiliary transmission control module were replaced. The vehicle was not diagnosed or repairs as of yet. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 145,000.

- Tampa, FL, USA

Warning light, turn off the engine. And the vehicle tugged forward. This vehicle has turned off on occasion and has had other engine warning lights. The engine warning light, now, remains lit.

- Brea, CA, USA

Drive train vibration since taking dealer delivery Nov/December 2015 @ 2830 miles air bag notice not to ride in front passenger seat 10/27/2016 1st occurence of unintended acceleration Oct 27, 2015 @ 8680 miles

- Austin, TX, USA

I have had to replace the brakes twice, as well as the driver side hub. I have replace the door trim at least 4 times. Everyone I have met that has the same year has had trouble with the trim. I also feel that the transmission has trouble shifting when towing.

- Parker, CO, USA

The contact owns a 2009 Chevrolet Tahoe. The vehicle was taken to an independent mechanic for an unrelated repair and they detected that the transmission dipstick had broken. In addition, both front passenger and rear driver side doors would not lock. The vehicle had not been repaired. The manufacturer was notified of the problem. The approximate failure mileage was 80,000. The VIN was unavailable.

- Tyler , TX, USA

The contact owns a 2009 Chevrolet Tahoe. The contact stated that the vehicle experienced a failure in which it would intermittently resist acceleration accompanied by a warning chime sounding. The contact also stated that the door locks would unexpectedly lock and unlock. The failure occurred regardless of the speed traveled. The vehicle was taken to an authorized dealer and they were unable to diagnose the failure. The vehicle was not repaired. The manufacturer was made aware of the failure and offered no assistance. The failure mileage was 57,000. Updated 07/06/12 on four occasions the door began locking, unlocking, chiming as if the doors were open. The warning lights began flashing and the vehicle would decelerate quickly as if the vehicle was placed in neutral and the accelerator was unresponsive. The dealer was unable to diagnose the problem. Updated 07/17/12

- Inez, TX, USA