Bought used..in idol will vibrate steering colum..always signals to check tires and oil..

- Yukon, OK, USA

This complaint is a continuation of complaint bin23-53927 and describes the findings of the transmission disassembly. Disassembly was delayed due to medical treatment unrelated to this incident. Transmission failed suddenly in high volume "rush" hour traffic. Torque was lost just before an exit allowing the vehicle to exit without power however the vehicle stopped in middle lane of a service road. On coming vehicles had to brake behind the vehicle. Sudden transmission failure in heavy high speed traffic presents a high risk of rear collision with multiple vehicles and injury. Furthermore, if the transmission fluid pump had not failed, the transmission could have lock-up or exhibited high speed down shifting, due to failure of other parts. This incident should not be dismissed because there was no accident or personal injury. Some mother with children could easily have a different out come on a crowded large city highway. No computer codes were displayed. 5lte-40 5-speed automatic transmission. Disassembly of the transmission revealed excessive metal particles and debris. The transmission fluid pump failed which caused loss of torque due to inadequate fluid levels in the torque converter. Clogging of the fluid "pick-up" filter also probably contributed to reduced fluid flow and failure of the fluid pump. A non-metallic washer was found to have disintegrated, allowing fragments to circulate in the transmission. The washer separated 2 splined drums. Disintegration of the washer allowed excessive movement and contact of the drums. Recommend GMC be contacted to obtain their comment on failure of these transmissions, as well as statistical review of incident reports to determine if failures are statistically greater than in the automotive industry, in general. The 5lte-40 and other transmissions have no traditional "dip stick" to measure transmission fluid level and contam

- Huntsville, AL, USA

Stabilitrak light comes on, engine light comes on with reduced engine power, loud thumping noises from front drive train at any speed turning or driving straight, unsafe to drive

- Davenport, FL, USA

Event: While driving South on us 231 S (memorial pky) in huntsville al, transmission disengaged with engine still running. No prior warning symptoms-no sound-no vibration-no lock up-either some part became uncoupled or transmission "shifted" into neutral or some part failed such as input shaft. Was able to coast onto an exit ramp, but unable to move to far right shoulder for safety due to traffic volume. Came to stop about 50 yards South of intersection with martin road on a steep incline in 3rd lane of 4 lane exit ramp. Shut off engine and applied emergency brakes to prevent rolling backwards into on coming vehicles. Requested tow vehicle and police assistance to prevent rear end collision. Vehicle currently in storage. Sliding metal sound when engine is started, then no noise. Faint grinding when transmission shifter in drive or reverse. None in neutral. Intend to have transmission-torque converter-ring gear-input shaft replaced as required or install used or factory rebuilt transmission and keep original transmission for forensic disassembly. Quick inspection under vehicle revealed no obvious damage. No fluid leaks at scene or failure or at storage location. Transmission case appears free of fluid leaks. Drive shaft couplings appear undamaged. Have owned vehicle only for about 8000 miles. Purchased from carmax July 2017. No known previous transmission repairs. Transmission designed without "dip stick" for transmission fluid level check. What is statistical data for 2008-2009 GM vehicles in general or other GM vehicles with same transmission. Shifter on console. Parking pall still engages when in park position. Sudden failure presents a definite safety risk. Had this happened about 3 miles sooner, it would have been even worse on I-565 5-6 lanes wide in "rush" hour traffic. 77000 miles seems statistically very low miles for transmission failure.

- Huntsville, AL, USA

The contact owns a 2008 Cadillac Srx. The contact received notification of a customer service satisfaction campaign regarding a throttle positioning sensor. The contact stated that while driving at various speeds, the check engine warning light illuminated with the engine reduced power error message on the vehicles instrument panel. The vehicle taken to the dealer for a diagnoses, however the failure could not be duplicated. The contact stated that the failure recurred and the vehicle was taken to the dealer where it was diagnosed that the accelerator pedal-positioning sensor had failed and would need to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 70,000.....updated 07/05/16

- Parkersburg, WV, USA

One Sunday, I drove the vehicle to the grocery store, parked and couldn't get the keys out of the ignition and the vehicle would not go all the way into park. I took the car to the dealer and it was fixed but the key will still get stuck from time to time and I have to put the car in neutral and then slam it into park in order to get the key out of ignition.

- North Little Rock, AR, USA

Differential leak. This is a recurring problem. Oil leaks from the vent. It was repaired under warranty once and it has to be repaired again. The vent is a defective design and we now have not only our vehicle but many vehicles spewing differential oil all over. GM could easily provide a better design vent but unless the NHTSA makes them nothing will happen. The tsb for this item obviously does not work as many owners are having this problem over and over again. Recall these vehicles so we stop leaking oil into the environment and possible cause expensive damage to our vehicles.

- Platte City, MO, USA