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really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
84,516 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.

2002 Chevrolet Avalanche engine problems

engine problem

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2002 Chevrolet Avalanche Owner Comments

problem #4

Feb 032003


  • 24,000 miles


The contact owns a 2002 Chevrolet Avalanche 1500. While driving various speeds, the vehicle decelerated independently and the reduced engine power, service engine, and traction assist indicators illuminated. The vehicle was taken to don hewlett Chevrolet Buick (7601 N interstate hwy 35, georgetown, tx 78626) where it was diagnosed that the accelerator pedal failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to don hewlett Chevrolet where it was diagnosed that the electronic throttle control module failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to an independent mechanic where it was diagnosed that the sensors failed and needed to be replaced. The vehicle was repaired, but the failure recurred once again. The vehicle was taken to autonation Chevrolet laurel (500 Washington blvd, laurel, md 20707) where it was diagnosed that the throttle body needed to be rebuilt, the tac module needed to be replaced, and the intake gasket needed to be replaced. The vehicle was repaired, but the failure continued. The manufacturer was made aware of the failure and stated that they could not assist. The contact was transferred to NHTSA. The approximate failure mileage was 24,000.

- San Antonio, TX, USA

problem #3

May 302014

Avalanche 8-cyl

  • 146,000 miles
The vehicles governor shut the vehicle off at 97mph while going around a corner which made the steering wheel lock up and made the brakes not work. Two people where life flighted to hospitals with various injuries... no air bags deployed at all... the first impact in the accident was to the side of the vehicle. Injuries sustained included multiple fractures of the spine of the driver from being ejected almost 40 feet passed where the truck had come to a rest. The debris path was over 150 ft. Long and the truck left the road because it could not turn then struck a stop sign and totally uprooted the stop sign including the cement cinder block under the ground which sent the truck in a death roll. Then the truck continued forward into a utility poles guide wire which dropped the pole on top of the truck as well as the wires. Then continued forward some more in which it came to a rest against a cedar tree.

- Longview, WA, USA

problem #2

Jan 152013

Avalanche 8-cyl

  • 100,000 miles
Well, when driving my 2002 Chevy Avalanche truck the reduce engine light cuts on. In addition, my truck starts to slow down and reduce speed. Sometimes on the interstate while I'm driving also. I've been to two GM dealership and paid money to have it service. As a result, they were charging me a lot of money, but never fixing the problem. It's very dangerous when driving sometime, so I been pulling over and resetting the computer to drive. I've read that there's recalls on some GM truck like mines. Also, I brought it to the GM service department too.

- Pensacola , FL, USA

problem #1

Sep 262007

Avalanche 8-cyl

  • Automatic transmission
  • 68,066 miles
The contact owns a 2002 Chevrolet Avalanche 1500. While the contact's spouse was driving 5 mph in a parking lot, the vehicle accelerated without warning and crashed into a store. There were no warning lights illuminated during or after the crash. The vehicle was repaired and the store sustained $1,900 worth of damage. The sudden acceleration recurred, however, the driver was able to gain control. The dealer stated that for $100 they would clean the throttle body, but would not guarantee that it caused or would correct the failure. A police report was filed and photos are available. The estimated failure mileage was 68,066 and current mileage was 68,166.

- Monon , IN, USA

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