Rear Axle System Off

[NELLY1947]

Can anyone shed some info on this. It's the 3rd or 4th time I start the truck and get the message on the cluster " Rear Axle System Off". I play with the drive and mode controls and it only erases when I hit the "check" button on the steering wheel. All seems to be normal. But it's concerning. Any info???

 

[Big Mama]

Still under warranty? It sounds like the system is turning off the locking differential.

 

[djnice]

On other gm cars with elsd this can be caused by misfire, old batery, voltage issues, alternator, ground issues, etc.

 

[NELLY1947]

Still under warranty? It sounds like the system is turning off the locking differential.

100% only has 7000 miles bought in December 2023 abd also gas 120 mile whatever year extended.
But thanks for the info. That could be it.