Service 4-wheel drive warning light turns on?

2008 GMC YUKON
193,300 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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SCOTT-YUKON
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Upon starting the display says service 4-wheel drive system.
Aug 29, 2022 at 3:10 PM
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STRAILER
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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.

Aug 30, 2022 at 9:57 AM