Service 4 Wheel Drive

[SnowBuck]

2005 XL SLT
Anyone have this? Seems intermittent, like once a month. Restart and it clears. Just happened again.

 

[swathdiver]

Gotta get the codes and see the failure records.

 

[Fless]

Yes, many of us have had it. When it's happeing what codes does a good scanner show?

When the message is on the DIC, do the mode lights on the dash switch make sense? Are you able to actually shift into various modes and confirm that they're true?

Could be the dash switch, but most likely the sensor inside the transfer case encoder motor. Could also be the TCCM or its ground being bad, but that's fairly rare.

The search function on the forum is your friend.

2004 Yukon XL 4x4 Transfer Case Issues

First time poster here. My 2WD, N, 4H, and 4L selector switch doesn't stay in 2WD mode all the time. When I turn off the engine for a short period of time and then restart the motor, the drivetrain selector switch on the dash left of the sterring wheel goes into either the "N" (red light) or 4L...

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