2019 Yukon Service 4WD

[Boogermark]

Just bought this last week and after a few rainy days, the service 4WD lndicator light came on. The SUV still shifts from 2WD to 4WD, but the service light turns on periodically. Looking for any suggestions. 

[Supreme Pizza]

20 minutes ago, Boogermark said:

Just bought this last week and after a few rainy days, the service 4WD lndicator light came on. The SUV still shifts from 2WD to 4WD, but the service light turns on periodically. Looking for any suggestions. 

 

 

 

I would suspect that there is something wrong... HA !  

 

No, seriously though - it may be an issue with the grounds, or the encoder motor itself.

 

Both are pretty common.

[JimCost2014]

16 hours ago, Boogermark said:

Just bought this last week and after a few rainy days, the service 4WD lndicator light came on. The SUV still shifts from 2WD to 4WD, but the service light turns on periodically. Looking for any suggestions. 

Welcome to the site.

 

Maybe call your local dealer about this TSB:

 

 

MC-10174073-9999.pdf