eboggs_jkvl

DIC flashed Service Stabilitrack on the trip back from Cincinnati. Came on at least 5 times. I cancelled the message.

What the hell is it? I was just cruising with the cruise control on doing 80 and the damn message kept popping up.

Elmer

Rooster OG

It means you need to service the stabilitrack.

svt1

I have a 2015 Denali with the 6.2 as my daily driver. Has the same thing happen yesterday! I called the dealer and made an appointment, and a couple hours later it went out and after about 200 miles of driving today, never came back on!!

mdiiulio

Could be a bunch of things leading to it, you would need more info. Do you have a code reader or OnStar? I would start there.

eboggs_jkvl

I found a loose ground wire. Let's see if that was the culprit.

Elmer

TNSQUIRE

Where was the loose wire?

eboggs_jkvl

Driver's side, just aft of the ABS unit, there are 3 ground points. I found the center bolt to be loose.

Elmer

iclick

Sometimes I wonder about these warnings. Last Feb. I got my monthly OnStar email report and it showed everything in the Engine/Drivetrain section with a red "X", including "Four Wheel Drive System" and "Hybrid Technology System." The car drove fine, never threw a code, and never showed a warning on the dash. I didn't check with the dealer, as my code reader showed no stored codes and the car ran flawlessly. The next month and those thereafter showed no warnings, so I guess the hybrid and 4WD systems weren't malfunctioning after all.

Scoobydoobydoo

Never had these problems in the 70's

speedlink

eboggs_jkvl

Ya'll are really good at this forum help thing aren't ya?





Elmer

xwing

IMO it's usually a problem with the ABS (at least was for me on another car)

eboggs_jkvl

The ground wire that was loose was down there by the ABS. I really think that was the issue.


Elmer

LT1 Z51

Stabilitrak is GM's trade name for Electronic Stability Control, which in all cars is done by the ABS/Brake Control module. The main sensor inputs to that unit are the Wheel Speed sensors. Inertial data comes from the OCM/RCM (Airbag Or Restraints module) and Steering Angle comes from a dedicated column sensor (Corvette is like this) or the EPS ( Electric Steering).

From a wiring perspective typical issues are caused by wheel speed grounds being bad, otherwise you have bad or damaged sensors or a bad Angle Sensor. You can know which based on the combination of codes, you will have an Airbag light if you have bad inertial data, and if the angle goes out you'll lose advanced steering features (like Lane Keeping, not on Corvette obviously), or a steering light. Ergo, no steering light and no airbag light, check wheel speed sensors. Typically if you lose two of those your speedo also fails (vehicle speed is calculated off the wheel speeds, very few cars still have a sensor on the transmission output shaft or TOS).

bub

Had this 'Service satbilitrak" message happen a couple times the past few months.

OnStar says my related DTC is C0161 brake position sensor. Had this happen before and dealership recalibrated sensor, but now it's back a few hundred miles later. Going in again and asking for new sensor at a minimum. 3 months left on warranty.

eboggs_jkvl

BTW, I've not had the message come up again after tightening the ground wire down in the engine bay.

Elmer

bub

Dealer struggline to find intermittent issue.

Will tighten grounds myself when I get it back.

Found the DTC C0161 diagnostic online here for C6 (assume C7 similar):

https://www.corvetteforum.com/forums...ode-c0161.html

Bill Dearborn

This is the diagnostic for the C7:


Somewhat similar to the C7 but different.

Are you a person who keeps their foot near or on the brake pedal while driving as having the brake on while accelerating can cause this code to set.

Bill

TweetyPacer

THat's where my Stabilitrak & ABS diagnostic showed up to - the monthly report. Dealer read no codes on the service drive, nothing in his printout. He's sending back to Service today - their diagnostic is more inclusive, so he says.

Patman

True but in the 70s you couldn't get a car with 460hp that also got over 35 MPG on the highway. Plus those cars in the 70s couldn't handle or stop anywhere close to the modern cars. I'll take the occasional electronic hiccup in order to enjoy all the things a C7 offers over those cars.