Service Stability System Warning

m1949 · Apr 20, 2024

Service Stability System warning light
3 or 4 times in the last couple of months the "Service Stability System" warning light has come on then almost immediately goes off. I've done two OBD scans and nothing comes up. Three questions:

Any ideas what may be causing this short flash of the warning?
Is this something that I should expect will get worse overtime?
And if so, can you suggest what I might do to correct the problem before it gets worse?

Thanks!

Joseph Garcia · Apr 20, 2024

Are you doing anything specific when the warning comes on? Is there some central connections to these occurrences? Like turning into an uphill street, or going over pot holes, etc?

adventurenali92 · Apr 20, 2024

Are you able to see BCM trouble codes with your scanner? My truck did this last summer and flashed at every start up. The only way I could see what it was being thrown for was with my tech 2 and going into the BCM section because that’s where the code was being thrown for. Turns out it was a wire in the airbag harness under the front seat that apparently leads into the yaw rate sensor. Fixed the wires and it solved the issue. However a handful of times over the last couple months it has flashed the “service stability system” message at startup. This time around though it didn’t pull any BCM codes.

m1949 · May 16, 2024

Joseph Garcia said:
Are you doing anything specific when the warning comes on? Is there some central connections to these occurrences? Like turning into an uphill street, or going over pot holes, etc?

Doesn't seem to be. In most instances we are just driving along on the freeway a cruising speed. The warning light comes on and two chimes sound, then the warning light goes off. Can't recall it has ever happened while stopping or accelerating. It happens on average about once every two weeks.

m1949 · May 16, 2024

adventurenali92 said:
Are you able to see BCM trouble codes with your scanner? My truck did this last summer and flashed at every start up. The only way I could see what it was being thrown for was with my tech 2 and going into the BCM section because that’s where the code was being thrown for. Turns out it was a wire in the airbag harness under the front seat that apparently leads into the yaw rate sensor. Fixed the wires and it solved the issue. However a handful of times over the last couple months it has flashed the “service stability system” message at startup. This time around though it didn’t pull any BCM codes.

I have a bluedriver scanner. I don't think it can read BCM codes. No codes show up when I run a scan after the warning appears.

adventurenali92 · May 19, 2024

m1949 said:
I have a bluedriver scanner. I don't think it can read BCM codes. No codes show up when I run a scan after the warning appears.

Hmmmmm might wanna check into a bi-directional on it to see if anything in the back is showing as out of whack. Sorry I can’t offer anything up for other possible causes.

nonickatall · May 19, 2024

Most likely your front wheel bearings starts to die. Because the ABS sensor is located in the wheel bearing housing and when play gets into the wheel bearing, ABS and stability system that works with that sensors gets wrong values and thinks that your tires are slipping. Since this is of course a "normal" event for the car, you don't have an error in the memory.

m1949 · May 22, 2024

nonickatall said:
Most likely your front wheel bearings starts to die. Because the ABS sensor is located in the wheel bearing housing and when play gets into the wheel bearing, ABS and stability system that works with that sensors gets wrong values and thinks that your tires are slipping. Since this is of course a "normal" event for the car, you don't have an error in the memory.

Thanks for the input. Back in the day it was possible to check for a bad wheel bearing by jacking up the suspect wheel off the ground and trying to "wiggle" it back and forth. If there was play the wheel bearing was bad. Does that still work on these trucks, or must I install a new wheel bearing without actually knowing that is the problem? Thanks.

nonickatall · May 22, 2024

m1949 said:
Thanks for the input. Back in the day it was possible to check for a bad wheel bearing by jacking up the suspect wheel off the ground and trying to "wiggle" it back and forth. If there was play the wheel bearing was bad. Does that still work on these trucks, or must I install a new wheel bearing without actually knowing that is the problem? Thanks.

Well i had the same problem, i check my wheels on a lift and did not feel something. It is difficult because its massive and 4wd.

After a while it made horrible noise and it was clear.

But try to find out...

Service Stability System Warning

m1949

LS364/450

Joseph Garcia

adventurenali92

Full Access Member

m1949

LS364/450

m1949

LS364/450

adventurenali92

Full Access Member

nonickatall

Full Access Member

m1949

LS364/450

nonickatall

Full Access Member

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