The contact owns a 2011 Chevrolet Traverse. While driving at various speeds, the electronic stability traction control and check engine warning indicators were illuminated. The vehicle accelerated independently. The vehicle was taken to a dealer, who diagnosed that the throttle body needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,000.

- Clarksville, TN, USA

I was on my way the Chevy dealer to have the safety belt and airbag recall repairs completed on my 2011 Traverse. I had four children ages (xxx) and under in the car with me. After coming to a complete stop at an intersection I made a left hand turn into the inside traffic lane on a busy 5 lane road and began accelerate to the speed of traffic. As soon as I reached 40 mph, my speed quickly dropped to between 15 and 20 mph and the following warning messages showed up on my dash: Reduced engine power, service stabilitrac and service traction control. Fortunately, I was able to merge back over to the right lane and then completely pull off the road into a parking lot without getting rear-ended by the cars behind me that were traveling at the speed limit. I turned the car off, then back on, and attempted to drive. The maximum rate of speed my car would reach was 20 mph, but I managed to drive it to the dealer taking back roads and subdivision roads. The dealer diagnosed the problem as a faulty throttle body. I did some research and discovered this is a well-known issue with these GM vehicles and a serious safety risk. After two days in the shop they completed the two recall related repairs without charge, but my cost to replace the throttle body and and reset the idle was $513. I told the dealer that I was aware that this is a well-known and well-documented issue so I did not feel that I should be responsible for the repair costs, but they refused to cover any of the cost because no recall has been issued for this problem. I believe this problem should be investigated and GM should issue a recall. I am a frequent highway driver and if I had been merging onto the interstate this incident could have ended in tragedy. *trparts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Ballwin, MO, USA

Engine overheated, reduced engine power came on and car shut down. Had to have it towed. Water pump had to be replaced, car is only 4 years old. Doesn't make sense.

- Brownsburg, IN, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated that while attempting to merge on a highway, the service stabilitrak and the reduced engine power was displayed across the message board. In addition, the contact stated that the accelerator pedal was depressed but the vehicle failed to accelerate. The vehicle was taken to a dealer where it was diagnosed that the throttle body sensor and the throttle body needed to be replaced. The vehicle was repaired by the contact. The manufacturer was notified of the failure. The failure mileage was 93,000. The VIN was unavailable.

- Fairmont, WV, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated that while driving at 40 mph, the vehicle jerked and the engine warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

- Newport News, VA, USA

Driving on highway at 60 mph. Reduce power light and stability control light came on. Traverse slowed down to 20 mph. I could not accelerate. I was almost rear ended on the highway. Brought the Traverse to the dealership where they replaced the throttle body. Time for a recall.

- Rosemount , MN, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated that while driving at 30 mph, the vehicle lost power. In addition, the accelerator pedal was depressed, but the vehicle failed to accelerate. The traction control warning light illuminated and stability track off, service stability track, traction control off, service traction control, engine power is reduced was displayed across the message board. The vehicle was towed to a dealer. The technician was unable to duplicate the failure or repair the vehicle. The manufacturer was not notified of the failures. The failure mileage was 65,057.

- Landenberg, PA, USA

Driving on the highway in nh in traffic when stabilitrac/reduced power/traction control light came on and car slowed down to 15 mph on a busy highway. Barely made it off the next exit as car wouldn't go over 10 mph. Luckily the cars behind me did not slam into me as it was a dangerous situation. A recall is needed is it is a serious safety issue.

- Kingston, MA, USA

The contact owns a 2011 Chevrolet Traverse. While driving approximately 40 mph, the stabilitrak light illuminated and the engine lost power. The contact was able to drive the vehicle to the dealer, but it was not diagnosed or repaired. The failure recurred twice. The manufacturer was made aware of the failure. The failure mileage was 72,046...updated 06-11-15 updated 11/23/2015

- Slatington, PA, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated that while driving at approximately 30 mph, the steering wheel seized. The failure recurred several times. The vehicle was taken to the dealer where it was diagnosed that a spark plug needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was unknown. The VIN was not available.

- Natchitoches, LA, USA

I was driving and the traction indicator light appeared. A warning showing loss of engine power was displayed and the car slowed to about 15 mph. I had to pull over. I turned the Traverse off, and restarted it. I was able to drive home. The next day, the same thing happened. After restarting the car, I was able to get home. From what I've been reading, this is a very common occurrence for this vehicle. It should be recalled and fixed.

- Chesterton, IN, USA

The contact owns a 2011 Chevrolet Traverse. While the vehicle was parked, the ignition switch was turned to the off position and the engine continued to run. In addition, the engine was making an abnormal noise and discovered that the battery fractured. The contact also stated that the engine warning light illuminated. The contact replaced the battery. The vehicle was taken to a dealer where it was diagnosed that there was a leak behind the glove department that leaked onto the fuse, which caused a wire shortage. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 85,000.

- Baltimore, MD, USA

On 2/3/15 driving 60mph on the 1-87 my steering wheel began to vibrate on and off. Then drove about 5 miles further then my stabilitrack and traction control failed with its indication on the dash board then the vehicle skid symbol lit up and the dashboard stated engine loss of power and the vehicle slowing began to decelerate to about 40mph and I had to pull over on the shoulder and had my vehicle towed to Chevy dealer. I was told it was my throttle body. Which I see seems a big problem for a lot of 2011 Traverse owners. The repair will cost me nearly $700 after I replaced a burned out wireharness for $658 just 2 weeks ago!!!!

- Highland Mills, NY, USA

When I pulled out of a driveway and began to drive down the street, my Traverse message board read, traction control off, engine power reduced, service stablitrac. I was unable to accelerate past 40 mph. My car was unsteady and shaky. I called GM and they stated that I have recalls issued on the car but none of them have anything to do with my current issue. It seems this is a common problem that GM is not addressing concerning a faulty throttle body. I am very frighten to drive especially of highway and with my children in the car. I bought this vehicle because I believed it would be safe for my family.

- Reynoldsburg, OH, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated that while driving at various speeds, the traction control and the engine reducing message illuminated as the vehicle decelerated. The failure recurred on several occasions. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 76,000.

- Montgomery, AL, USA

While driving, the vehicle suddenly showed alerts reading traction control off, service traction control, service stabilitrak, and engine power reduced. At this time the vehicle immediately slowed down to 20mph. Thankfully my toddlers were not in the car and I did not have traffic behind me so that I could safely pull over to the shoulder. I turned off the vehicle for a few minutes and restarted again, at which time the same errors returned with the exception of engine power reduced, so that I could at least make it home. I immediately called my Chevy dealer who completes all service on my vehicle, and I was told that this is a common problem, especially in the cold temperatures as oil tends to accumulate in the throttle body and freeze up, making the sensor go haywire, leaving the throttle unable to compensate for the changes, and the warnings to occur. I was told it would not be covered under the powertrain warranty and that there was no recall. I was also told that it wasn't a big deal and it should be fine when it warms up. I guess we differ in our opinion of whether a car shutting down in the middle of the highway or with my children in the car is a big deal. I guess we also differ in our opinions about whether a $40K vehicle should function in freezing temperatures that occur for four months of the year in the northeast. Chevrolet has issued recalls for this very issue with many other vehicles and some years of Traverses but not all. Chevrolet, you need to stand behind your vehicles...take responsibility for the $100 part that can very easily be fixed in 15 minutes time instead of forcing customers to drive an unsafe vehicle or shell out upwards of $600 to make the repair. I love this car, probably my favorite vehicle I have ever owned, but this is a major problem.

- Goshen, CT, USA

The contact owns a 2011 Chevrolet Traverse. The contact stated while driving 60 mph, the electronic stability control, traction control and the engine power reduced warning lights illuminated on the instrumental panel. The vehicle independently reduced power. The contact merged to the side of the road where the vehicle was turn off and restarted however, the warning indicator remained illuminated. The dealer was made contacted. The manufacturer was not made aware of the failure. The vehicle was not diagnosed. The failure mileage was 82,000.

- Albertson, NY, USA

On six separate occasions in 7 days, my vehicle has displayed the following messages, traction control off, check stabilitrak, and reduced engine power then suddenly reduces speed significantly unwilling to accelerate. I have to pull over, turn off the car and wait several minutes before I can turn the car back on for it to drive correctly. This is extremely dangerous and I know it is a recurring issue for many GM 2010-2012 vehicles and no recall or solution has been made yet.

- Rehoboth, MA, USA

While traveling on the hwy at 65 mph I got a message on the dash that read "service traction control" then "service stabilitrack" then "engine power reduced" all simultaneously. Then I lost power and went drastically from 65 mph down to about 40 mph. I almost got ran over by a semi truck!! I pulled vehicle to the side and slowly made my way to the nearest exit. Once I got off the hwy I tried to make my way back home, but the power was reduced to a crawl, so I pulled into a parking lot and ended up having to get it towed to the shop. They diagnosed the car and found no mechanical issues, only what seemed to be a "glitch" in the computer system. Suggested that I may need to replace the throttle body. I picked up my car and it drove fine for 5 days then it did the same thing again, luckily I was in my neighborhood. Drove it home and parked it. The next morning it drove just fine, no issues, and today it happened again. I have spent the last few hours reading hundreds of other complaints describing the exact same scenario, and found that they are taking their vehicle into the dealer and getting parts replaced only to have it happen again and then more parts replaced and it continues in this cycle... this from only one forum and there are a number of others a like!

- Forney , TX, USA

I was driving at about 50 mph when the "stabilitrack system" "reduced engine power" "service stabiltrack" errors went off which reduced my speed suddenly to 20 mph and I had to pull off to the side. This could have caused a major accident had I been on a highway, thankfully I was not. After doing some research this is a common problem with Chevy Traverse's and GM should issue a recall for this part. I had to pay out of pocket to replace the throttle sensor and body and GM will not reimburse me. It's also not covered by their powertrain warranty.

- Portland, CT, USA