Asking if anyone knows about the 2010 Chevy Avalanche and the ECM problems that alot of people are having, the check engine light came on and the display showed reduced engine power, service traction control, and service stabilitrak. It would not go in gear, nor would it start, this had happened to the truck three times now, the first time it would not go into gear and it stopped and would not start at all, so I took the negative battery cable off for 30 minute and it fixed it. The second time all the light and buzzers went off, I had lack of power and the check engine light came on and the display showed reduced engine power, service traction control, and service stabilitrak while I was driving it so I took it home, I was lucky that I didn't get in a wreck because it dropped drastically in speed all at once, again I took of the cable, and went to have the diagnostic reading done at a parts store, the next day I drove it to my mechanic and he cleared all the history on it and told me to call when it happens again, it seems that the 2010 Avalanche has this problem alot, so today it happened again, for no reason,

- Great Falls, MT, USA

I am very disasified with the way the issue has been handled. I drive a 2010 Chevrolet Avalanche ltz with 111,000 miles on it. I purchased this vehicle in 2005 with 38,000 miles. A year later during the summer time I began to have electrical issues (while in motion vehicle guages start spazzing out going up and down, radio cuts in and out, door locks cycle up and down and vehicle stalls, doesnt seem to accelerate and shift into second gear. I have been stranded in the middle lane of the freeway traveling 60 miles per hour when suddenly it begins to act up. This is a major safety issue with three children in the vehicle and multiple cars driving at the same speed as I try to get over to the shoulder to shut off my vehicle but seems stuck in neutral preventing me from quickly getting off the free way. At times I will cycle the ignition key off and all power cuts out. I hear a clicking noise and lights flicker back on, which is my cue to cycle the ignition key back on. Sometimes it works and others it doesn't. at time power doesn't come back for at least 5 minutes. This occurs sporadically during the spring and summer times. I have taken it to the dealership where they were unable to diagnose the problem, stating they couldnt duplicate the problem. They assumed the ignition switch so that was changed but problem continued. I contacted Chevrolet where they opened a case but it troubles me that they work on a case by case and stated they arent aware of multiple similar complaints. Vehicle was dropped off again where they still couldn't diagnose the problem but did research and found the cable may possibly be the reason so that is still pending. If this is so common and a major safety concerns on the highway why hasn't there been a recall for Chevrolet. I have attached a document sent from the dealership about the cables. Chevy needs to do something about the electrical.

- Austin, TX, USA

The contact owns a 2010 Chevrolet Avalanche 1500. While driving approximately 55 mph, the vehicle stalled. In addition, the steering and braking ability failed, the radio was inoperative, and the stability control warning indicator illuminated. After five minutes, the vehicle operated normally. The contact stated that the failures occurred sporadically for six weeks. The vehicle was taken to the dealer (bleecker Chevrolet, 1200 cumberland street, dunn, nc 28334) to be diagnosed, but they were not able to replicate the failures. The dealer replaced the battery and the vehicle was repaired. The manufacturer was notified of the failures and provided case number: [xxx] the approximate failure mileage was 120,000. Parts 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).

- Dunn, NC, USA

Thus far, nothing has "happened" with my vehicle, but there has been a recall in effect for the airbags in my vehicle for well over a year and nothing has been done to replace the airbags. I am also having some electrical problems with my truck not shutting off when I remove the key, and the interior dome lights will not turn on when the button is pressed (this has all began since the recall was initiated but not taken care of). I just want my airbags replaced, as they are supposed to be, given the recall, and if the recalled parts are responsible for the additional problems I am now having with my truck, I want those addressed and repaired as well. The length of time this has taken to address is beyond unreasonable and I have been as patient as I can be waiting for this recalled part to be replaced.

- Dallas, GA, USA

I was on vacation and had my Avalanche running while I packed it up to return home. After about 5 minutes of running idle, the check engine light came on and the display showed reduced engine power, service traction control, and service stabilitrak. This had happened to the truck three times before and each time they replaced the accelerator pedal positional sensor. (I also had a 2007 Chevrolet Tahoe, and after having it repaired seven times for failing sensors and going into reduced engine power while on the highway three times we were forced to sell it). We are very familiar with this issue! however, I was able to locate a dealership in the area and they tested it to find that the throttle body was out, and they replaced the throttle body and the associated sensor. I was relieved to hear that this was a different issue than before and that my problems were fixed. This was not the case. Last week, the engine power reduced again and the truck is now in the shop for the fifth time.

- Belle Chasse, LA, USA

I was driving on a bridge when the check engine light came on and the engine power reduced. The truck immediately dropped to below 30 mph and I could not accelerate up the bridge and barely avoiding an accident, as this was in a heavy traffic area. I was able to get it to the dealership and are working on it now. This if the fifth time this has happened to my truck. My wife and I just sold our 2007 Chevrolet Tahoe and the only reason was the engine power reduced error occurred on it seven times, three in month prior to selling it. This is a major problem and could have easily resulted in a severe accident. Both cars were only ever serviced at Chevrolet dealerships and each time, they insisted it was fixed and the problem was gone. We have no faith in Chevrolet at this time!

- Belle Chasse, LA, USA

GM tsb #10047479 this is a well know problem on GM truck and SUV models with power adjustable pedals. The wires rub against the mechanism causing a short and making errors to the computer causing communication problems and loss of power. Repaired at dealership, and charged $300 for labor no parts involved. Not covered because it is a tsb, not a recall. This should be a recall because it could cause an accident from loss of power.

- Jonestown, PA, USA

The contact owns a 2010 Chevrolet Avalanche. The contact stated while driving approximately 80 to 85 mph, he noticed that the door locks began to open and close, the RPM's reached 1,000, and the vehicle suddenly shifted into first gear until it decreased to a normal speed. The vehicle was inspected by a dealer who advised him that they would replace two modulators. The vehicle was repaired; however, within an hour of leaving the dealer the identical failure occurred. The vehicle was taken to another dealer who advised him that they were unable to diagnose the failure. The manufacturer was notified and advised him that the vehicle was safe to drive. The failure was diagnosed by several dealers seven times. The failure mileage was approximately 8,000. The VIN was unavailable.

- Lock Port, NY, USA