Service 4-wheel drive warning light turns on?

Tiny
SCOTT-YUKON
  • MEMBER
  • 2008 GMC YUKON
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 193,300 MILES
Upon starting the display says service 4-wheel drive system.
Monday, August 29th, 2022 AT 3:10 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,702 POSTS
This light comes on when there is a problem in the traction control system, we need to run the codes with a CAN scanner, which is easy to do. You can get a CAN scanner from Amazon for about $30.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3o41KcZ

It will probably be one of the front bearing hubs, here is how you will replace it:

https://youtu.be/ZgiPRG6jffc

Please let me know which code it is so I can help you fix it.

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Tuesday, August 30th, 2022 AT 9:57 AM

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