Service Stabilitrak and Traction Control Lights - 2012 Suburban

[pickupman87]

Good morning, apologies if this is posted in the wrong spot but I'm guessing its applicable, truck or sub.

 

I've got a 2012 Suburban and I occasionally get the Service Stabilitrak and Traction Control Off lights on.  No check engine light and no codes (that my cheap reader can see).

 

As crazy as this sounds, it appears to be related to the cabin temperature.

 

For example,  the first time it happened it was July (in MN), truck was sitting in a hot parking lot, start it up and the lights are on.   As I drive it and the AC is cooling the cabin temp, they turn off.  This would happen every time it sat in a baking hot parking lot until the AC cooled it down.   Flip to the winter now, no lights until I'm driving it for some amount of time with the heat on, once it gets warm enough in the cab - they turn on.   Let the truck sit/cabin temp cool - they'll be turned off.

 

The only thing I could think of was the brake switch as it seems to be triggered when I hit the brake.   I replaced this last week and still have the same issue.

 

Any thoughts?   

 

Pete

Edited December 9, 2021 by pickupman87

[richard wysong]

you need a scan tool that will do the abs etc

[pickupman87]

Coincidence?   Today I had a co-worked try his OBDII thing on it and it had a pending code   P0304.  By the time we got done with our trip the check engine light was on and it said confirmed P0304 - Cyl 4 misfire.

 

Separate issue?   Related?    The stabilitrac/trac control warning has been there for months and funny when I just start looking into it more, this shows up.

[richard wysong]

totally unrelated

[Supreme Pizza]

No idea. Probably not related at all, but if its temperature related, it might be worth looking at the tires. Are they way over or under inflated? Maybe if the TPMS get crazy tire pressure numbers it might shut the system off. Hot tires have more pressure than cold ones. Does it come on when the vehicle is moving, or only when sitting still? If it happens when moving, it could be a wheel speed sensor. If it happens when the vehicle is not moving, and with the headlights and blower motor on hi, is the battery voltage getting low and triggering an issue somehow? This is all probably useless info, but it might trigger an idea that gets you on the correct path.

[Yotaman]

I had the same issue with my 2014 GMC Sierra CC SLE for 5 years dealer could never figure it out. I too thought it was temp related cause it would do it after work alot when truck sat in sun. I finally called GM to complain and was sent back to the dealer who had new owners and service MGR. He took it to the back and came back and said it is the brake reservoir level switch. I said look it has never said low level but he ordered a new one came in a week later they installed it and it has not come back in since. That was 2-3 years ago. May be your issue too ??

 

Yotaman

[swathdiver]

On 12/9/2021 at 7:27 AM, pickupman87 said:

Good morning, apologies if this is posted in the wrong spot but I'm guessing its applicable, truck or sub.

 

I've got a 2012 Suburban and I occasionally get the Service Stabilitrak and Traction Control Off lights on.  No check engine light and no codes (that my cheap reader can see).

 

As crazy as this sounds, it appears to be related to the cabin temperature.

 

For example,  the first time it happened it was July (in MN), truck was sitting in a hot parking lot, start it up and the lights are on.   As I drive it and the AC is cooling the cabin temp, they turn off.  This would happen every time it sat in a baking hot parking lot until the AC cooled it down.   Flip to the winter now, no lights until I'm driving it for some amount of time with the heat on, once it gets warm enough in the cab - they turn on.   Let the truck sit/cabin temp cool - they'll be turned off.

 

The only thing I could think of was the brake switch as it seems to be triggered when I hit the brake.   I replaced this last week and still have the same issue.

 

Any thoughts?   

 

Pete

You need a Tech-2.  I do not believe that your misfire and the warning lights are unrelated.  

[95_togo]

weird.  i have a similar issue - not temp related - but when i take off quickly from a stop and crank the wheels to the left (i.e. left turn arrow, or at a stop sign getting into traffic on a main road - it's been like this for years and the shop i took it to to check codes said the sensor needed to be replaced - i couldn't find anything that didn't require me disassembling the entire front end, so i leave it - (that and because it's so random, i highly doubt it's a bad sensor) I THINK my problem is related to stress on the wire from the sensor going up into the engine bay  - it happened after i put new struts on (which unbeknownst to me gave me 3" of lift in the front (but they aren't "lifted struts") that, and i have a spacer on top - which added another 1.5"  i just baby it when i take off to solve my problem - but it still baffles me why this happens

[swathdiver]

6 hours ago, 95_togo said:

weird.  i have a similar issue - not temp related - but when i take off quickly from a stop and crank the wheels to the left (i.e. left turn arrow, or at a stop sign getting into traffic on a main road - it's been like this for years and the shop i took it to to check codes said the sensor needed to be replaced - i couldn't find anything that didn't require me disassembling the entire front end, so i leave it - (that and because it's so random, i highly doubt it's a bad sensor) I THINK my problem is related to stress on the wire from the sensor going up into the engine bay  - it happened after i put new struts on (which unbeknownst to me gave me 3" of lift in the front (but they aren't "lifted struts") that, and i have a spacer on top - which added another 1.5"  i just baby it when i take off to solve my problem - but it still baffles me why this happens

What codes?  Steering wheel angle?  How are your tires wearing up front?