my ABS light will blink and then it says service four wheel drive? GMC

pissedoffpete · January 4, 2015

its snowing out right and now and i was just driving in 2wd and my ABS light blinked twice and my screen said service fourwheel drive and then it went away?

anyone have this issue?

thanks in advance

gmtech4 · January 4, 2015

Lots of people do ...

But that doesn't matter ,,,

Does 4wd and ABS work now ?

Service 4wd message means there is a code in the TCCM ,

If it doesn't work the message will return and needs to be scanned ,

ABS Light coming on and going off is a little odd but scanning the EBCM As well for giggles can't hurt either , clear both and road test and do a function check/test on both systems to see if a code returns

Let us know

its snowing out right and now and i was just driving in 2wd and my ABS light blinked twice and my screen said service fourwheel drive and then it went away?

anyone have this issue?

thanks in advance

pissedoffpete · January 4, 2015

i went back outside and fired the truck backup and none of the lights came back on while just sitting still and it also shifted in and out of 4WD just fine......i'm running a tuner and it has a onboard OBDII reader and it flashed a code (P2544 Torque Management Requst Input signal A)

02suburbanZ71 · January 4, 2015

i went back outside and fired the truck backup and none of the lights came back on while just sitting still and it also shifted in and out of 4WD just fine......i'm running a tuner and it has a onboard OBDII reader and it flashed a code (P2544 Torque Management Requst Input signal A)

Hmmm wow

gmtech4 · January 4, 2015

i went back outside and fired the truck backup and none of the lights came back on while just sitting still and it also shifted in and out of 4WD just fine......i'm running a tuner and it has a onboard OBDII reader and it flashed a code (P2544 Torque Management Requst Input signal A)

Write that down ,

Clear it and drive truck 1/2 hr , work the engine , work it all , ABS ,STABILITRAC , etc etc

See if it returns , if it does take it in , that's a signal code you can't do yourself