GMC Sonoma Problem Report
GMC Sonoma ABS Light Due to Brake System Control Unit Failure
ABS and BRAKE lights come on at different times. Sometimes while driving. Most of the time after short hops to different stores etc. If I turn the engine on and off 3 or 4 times the lights will stay off for a day or two. I've been told the ABS control module is bad. Can not afford to get it fixed at this time. - Visitor
The ASB light stays on but have had no issues with braking. - Sterlingdane
Abs light come on & dealer said the the abs brake module is bad. It may stay off during cold mornings but always comes on when outside temp is warm. Brakes still operate well. I will have to pump brakes if car begins to skid. Would replace if I could find module cheap. - Visitor
Abs light is on. Truck wont run more than 30 mph.. - Visitor
Brake warning lights(ABS and Brake)come on erratically but brakes still work. ABS braking has never worked. Thanks GM. - Visitor
ABS warning light comes on and sometimes doesn't but no effect to the braking function. - Visitor
1.ABS Light to Brake System IS ON,AND HAVE NOT FIXED - Visitor
ABS Light comes on and then brakes work irratically - sapalm40
abs light would come on all the time and when the brakes were pessed they would pulsate - Visitor
abs light on--no brake problems noted - Visitor
ABS light lights intermittently. Every so often there was a loud noise under the hood when brakes were applied. - NRR
I have owned my Sonoma for 9 years. 5 years ago, at 85,940 miles, the abs and brake light started coming on intermittently. it does it more when it is warm outside and all the time when the temps are over 100 degrees. I have tested all sensors, and they are all still good. This led me to the ABS control. I know it is bad, since my Tester tells me it is. I did find the part at a local parts dealer for 245.00, but once installed, it has to be reprogrammed as it comes blank. The replacements are all re manufactured parts. Planning to purchase this soon and have it done and over with. the lights have been more of an annoyance than anything. The truck has always stopped on a dime without issue. - Visitor
Intermittent problem of brake and ABS light coming on at the same time. Seems to happen after heavy stop and go traffic or when carrying a load well within load limits. Brake fluid full and emergency brake off. No problems stopping or with ABS. Lights generally go off the next day. Was told module was bad. I am going to try unplugging connector from module, cleaning, and installing new dielectric grease on connection. - Visitor
The abs light is almost always on - Visitor
lights stay on - Visitor
light stays on brakes work fine first freeze this morning - Visitor
ABS and brake lights on randomly with no effect on brake system. Diagnosis revealed nothing. Recently, low speed braking triggers ABS. Nothing done yet, may have to clean sensors myself. - Visitor
TRUCK SEEM TO BE UNDER LOAD -WHEN FIRST DRIVING AFTER SITTING UP FOR 12 HRS - Visitor
relay inside of control module failed causing abs light to come on intermittently. - Visitor
The vehicle's ABS light illuminates at different times without any pattern. When the light is illuminated, I do not have anti-lock brakes. I too have been told by mechanics that the ABS control module is not talking/playing well with the ECM computer. - Visitor
sounds like it may be coming from the fire wall. when this happens my brake petal pulsates and...
my panel lights will not turn on. its hard to see what speed im going at night. my friend chang...
This is a used truck, I got in Dec. and had brake and rotors pads replaced 4 times, since then....
I just had my brakes replaced on all four wheels which included the rotors being turned. I not...
why does my abs light come on when there is nothing wrong with the brakes