Rear Axle System Off

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

NELLY1947

Member
Joined
Dec 4, 2023
Posts
56
Reaction score
36
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

Full Access Member
Joined
Jul 21, 2015
Posts
3,413
Reaction score
2,090
Location
Virginia
Still under warranty? It sounds like the system is turning off the locking differential.
 
Last edited:

djnice

Member
Joined
Jan 13, 2024
Posts
84
Reaction score
36
On other gm cars with elsd this can be caused by misfire, old batery, voltage issues, alternator, ground issues, etc.
 
OP
OP
N

NELLY1947

Member
Joined
Dec 4, 2023
Posts
56
Reaction score
36
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.
 

BK613

TYF Newbie
Joined
Nov 27, 2024
Posts
3
Reaction score
0
I have a 2023 Chevy Tahoe Z71 with 19,000 miles. Whole driving on freeway I got a service engine light with four notifications. One was Service ECS, Forward Collision System Unavailable, Service Traction Contol and Rear Axle System Off. I drove it 15 miles to nearest dealership as it was vibrating slightly. Dealer said it was throwing a code about a cylinder 3 misfire. Three weeks before they could even look at it. They were surprised as its a 6.2 gas engine and not the 5.3 which they said had lifter issues! Super frustrating. Anyone have any ideas as I will probably be down with the vehicle for a month.
 

BK613

TYF Newbie
Joined
Nov 27, 2024
Posts
3
Reaction score
0
I have a 2023 Chevy Tahoe Z71 with 19,000 miles. Whole driving on freeway I got a service engine light with four notifications. One was Service ECS, Forward Collision System Unavailable, Service Traction Contol and Rear Axle System Off. I drove it 15 miles to nearest dealership as it was vibrating slightly. Dealer said it was throwing a code about a cylinder 3 misfire. Three weeks before they could even look at it. They were surprised as its a 6.2 gas engine and not the 5.3 which they said had lifter issues! Super frustrating. Anyone have any ideas as I will probably be down with the vehicle for a month.

IMG_4967.jpegIMG_4965.jpeg
 

Yeloshak

TYF Newbie
Joined
Mar 13, 2023
Posts
2
Reaction score
0
BK613 - same issues on my 2023 Suburban Z71 with the 6.2L. I also have a "trailer brake controller unavailable" in addition to the same 4 warnings as you. Any luck so far?
 

Fless

Staff member
Super Moderator
Joined
Apr 2, 2017
Posts
12,092
Reaction score
24,666
Location
Elev 5,280
BK613 - same issues on my 2023 Suburban Z71 with the 6.2L. I also have a "trailer brake controller unavailable" in addition to the same 4 warnings as you. Any luck so far?

He may not see your post unless you tag him. Type the "@" key, then start typing his username. Pick it from the dropdown list and then ask your question. Tag like this: @Yeloshak
 
Top