ABS Light Due to Brake System Control Unit Failure on GMC Safari

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

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Average mileage: 108,763 (11,350–204,000)
15 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005
47 people reported this problem
22 people shared problem details
2003 GMC Safari176,000
After driving for either 1 mile or sometimes 18 miles the ABS and Brake light come on at the same time. Sometimes when I stop and turn off engine and re start the light stays off for awhile but usually comes back on.
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2002 GMC Safari76,500
brake and abs light comes on while im driving, i pull over turn off engine re-start and goes away, but lately is very often and it does not go away
brake light & ABS light come on & stay when engine is started was told I need a new anti lock brake control module cost $900.00 for part + labor
2004 GMC Safari110,000
2004 gmc safari all wheel drive-ABS LIGHT STAYS ON ALL OF THE TIME. BRAKES GO TO THE FLOOR ON OCCATION. I AM WONDERING IF THEY WILL GO OUT COMPLETELY. DON'T KNOW WHAT TO DO. HAVE TAKEN IT TO THE SHOP ON SEVERAL OCCATIONS AND IT HAS NOT HELPED.
2002 GMC Safari117,500
Both brake and abs warning lights came on intermittantly. Brake ABS unit was replaced.
haven't fixed it yet...ABS module must be replaced/rebuilt...$$$
2000 GMC Safari178,000
Light comes on intermittly when I hit a bump or just starting the engine and occassionally never comes on.
2000 GMC Safari150,000
brake light wont go off sometimes when braking goes hard to right have to let off brake and pump peddle untill it straitins out
2002 GMC Safari78,000
I CHANGE THE MODULE CLEAN FRONT ROTORS VERY NEAT, DISCONECT THE SENSOR CLEAN IT UP THEN BACK TOGETHER DISCONECT THE BATTERY USE MY SCANNER RESET EVERYTHING AND STILL HAVE THE PROBLEM
2005 GMC Safari50,000
ABS went out after only a few thousand miles but unfortunately after the warranty had expired. Repair shop wanted $1500 to repair it. I've been waiting for a recall on this as I've heard it's a common problem with Safari and Astro vans. Also I've driven without ABS for about 30 years.A few more won't make any difference
2002 GMC Safari116,000
Sometimes after driving for five minutes , both "BRAKE" & "ABS" lights come on. My mechanic says it will cost around $1.700 to fix... After reading the other stories and the repairs aren't a sure cure.......I think I'll just ignore them.
2003 GMC Safari116,300
ABSOLUTELY Light on
abs light always on. have not done anything yet.
2002 GMC Safari81,283
I have replaced the ABS module now 3 times in the last year.(The dealership has paid for it twice). Does anyone know what the hell is going on? The last module lasted less than 24 hours.
2000 GMC Safari66,000
not repaired
2000 GMC Safari55,000
My problem is the same one that is described in the original problem report. The only exception is that the problem manifested itself soon after the vehicle's warranty ran out. This happened around 55000 miles.
ABS system does not engage when braking firm & hard (basically you have regular non-ABS brakes. ABS & Parking Brake indicators on dash board remain lit after engine start. When going for State Safety Inspection, make sure the indicators are off. Can't afford a $900 fix on a 14 year old van.
1990 GMC Safari29,000
abs light stays on
2005 GMC Safari90,000
abs and brake light intermittently come on almost acts temperature related. problem started last fall,lights would come on occasionally 8 to 10 miles into commute.This winter unseasonably cold, many single digit and teen days,no abs/brake light prob. Now 45 plus weather and abs/brake lights back
2000 GMC Safari200,000
brake makes noise don't stop and pushes up on the brake pedal but not every time. Not fixed need help to fix.
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