2002 Chevy Avalanche service 4 wheel light is on and gear c

Tiny
GEMPLERD
  • MEMBER
  • 2002 CHEVROLET AVALANCHE
Transmission problem
2002 Chevy Avalanche V8 Four Wheel Drive Automatic 125k miles

125,230
Monday, March 8th, 2010 AT 2:25 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
You will have to find a shop that can scan the Drivetrain for codes. The light is letting you know the PCM (computer) sees an issue with something in the drivetrain, so it may shut down other systems
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Tuesday, March 9th, 2010 AT 7:48 AM

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