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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
72,825 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Chevrolet Avalanche drivetrain problems

drivetrain problem

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2009 Chevrolet Avalanche Owner Comments

problem #3

May 052016


  • 84,000 miles


Engine dies, door locks start opening and closing, all dash lights go off, radio goes off, car starts on own 3 to 6 seconds, did this at 60 mph and at 15 mph.

- Seattle, WA, USA

problem #2

Dec 182011

Avalanche 8-cyl

  • 134,475 miles
I was driving to a church function with my wife and about 30mph under acceleration, my truck started lugging like it was in 6th gear. It started shaking then the tachometer was fluctuating up and down about 500 RPM's. I checked the transmission fluid and looked good. I have a very important business trip tomorrow morning and now I am stuck. I took it for another drive to see if the problem occurred at a higher speed and it does. I put the cruise on about 60mph and the truck was bucking and the RPM's were going crazy. I drive mostly highway miles. Very disappointed in the service I have had with this truck so far with another issue and now I have to deal with this.

- Anniston, AL, USA

problem #1

Nov 172011


  • miles
The contact owns a 2009 Chevrolet Avalanche. The contact stated that the vehicle was parked on a slight incline when a loud bang was heard and the vehicle began to roll away, in reverse. The rear tail lights were illuminated as the vehicle rolled away before crashing into a body of water. The vehicle was destroyed. The contact's insurance company inspected the vehicle and determined that the failure was either contributed to the park pole or the teeth fracturing in the transmission. The VIN was not available. The failure mileage was unknown.

- Picayune, MS, USA

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