2002 GMC Sonoma

PROBLEM-I DONT FEEL SAFE IN MY TRUCK-ABS BRAKES IS NOT WORKING PROPERLY WHEN COMING IN CONTACT WITH A BUMP IN THE ROAD OR POTHOLE COVER AT TIMES. ON GOING INCIDENT SINCE PURCHASING THE VEHICLE NEW WITH 127 MILES. DESPITE WHAT THE DEALER SERVICE DEPARTMENT HAS TOLD ME, THIS IS NORMAL FOR ABS BRAKES, THIS IS A PROBLEM FOR ME. THEY HAVE EITHER INCORRECTLY DOCUMENTED OR DID NOT DOCUMENT AT ALL MY COMPLAINT. WHEN STOPPING AT A LIGHT AND THE RIGHT BRAKE HIT A POTHOLE COVER OR BUMP IN THE ROAD, AT TIMES, THE RT BRAKE WILL RELEASE AND THE LEFT BRAKE WILL "BRAKE". THE VEHICLE WILL JERK ON THE RT SIDE CAUSING THE VEHICLE TO MOVE FORWARD AND SWERVE. AS MY VEHICLE COMES TO A STOP, MYBRAKE PEDAL PUSHES DOWN TO THE FLOOR I FIND MYSELF STOPPED AT AN ANGLE. THIS IS AS EXACT AS I CAN GET WITH WHAT HAPPENS. THIS IS A PERSISTENT PROBLEM. I TRY TO AVOID OBJECTS ON THE ROAD BUT CANNOT SEE THEM ALL. MY VEHICLE HAS BEEN SERVICED AND THEY CANNOT FIND ANYTHING THEY SAY EXCEPT BULLETIN FOR CLEANING BRAKE SENSORS. THIS VISIT IS THE ONLY TIME MY PROBLEM HAS BEEN DOCUMENTED. WHEN I PICKED UP MY TRUCK THE LAST VISIT, I ADVISED THE SERVICE TECH I DO NOT WANT THIS PROBLEM ANYMORE AND REEXPLAIN THE PROBLEMS. PLEASE BE ADVISED ON MARCH 20,04, I FILED PREVIOUS COMPLAINT AT THIS SITE AND COMPLAINED ABOUT THE ABS BRAKES. PLEASE NOTE WHEN I FIRST HAD MY TRUCK OIL SERVICED I COMPLAINED ABOUT THE BRAKES, I WAS TOLD ABS WORKED THIS WAY. THE PEDAL GOES DOWN TO THE FLOOR. I STOPPED BY THE DEALERSHIP 05/24/04 TO FILE A COMPLAINT. TONY WROTE THE PROBLEM ON SCRATCHPAPER, I GOT A COPY I CANNOT CONTINUE TO AVOID POTHOLES OR BUMPS, ESPECIALLY AT NIGHT. I WILL EITHER REAREND SOME ONE, GET INJURED OR LOSE MY LIFE. I DONT FEEL SAFE IN MY TRUCK. I HAD TO EXPLAIN TO MY DAUGHTER ABOUT THE PROBLEM TO AVOID AN ACCIDENT. SHE EXPERIENCE THE SAME PROBLEM. MY VEHICLE IS STILL UNDER WARRANTY. I NEED MY SITUATION INVESTIGATED.

ABS LIGHT COMES ON WHEN COMING TO A FULL STOP. THE VEHICLE PERFORMS AS NORMAL UNTIL THE FIRST FULL STOP AFTER STARTING ENGINE. VEHICLE WILL NOT STOP PROPERLY AS ANTILOCK BRAKE COMPUTER WILL NOT LET THE DRIVER FULLY APPLY THE BRAKES. AFTER A FEW STOPPING ATTEMPTS THE ABS LIGHT COMES ON INDICATING THE COMPUTER CANNOT SENSE A SIGNAL FROM THE SPEED SENSOR. THE COMPUTER THEN TURNS OFF ANTILOCK FUNCTION AND ALLOWS NORMAL BRAKING UNTIL ENGNE IS TURNED OFF AND COMPUTER IS RESET. THE PROCESS REPEATS AT EACH VEHICLE STARTUP. THIS CONDITION COULD POSE A SAFETY HAZARD UPON COMING TO A FULL STOP AND CAUSE AN ACCIDENT. SUGGEST MANUFACTURER LOOK INTO PRODUCT ASSEMBLY AND/OR MANUFACTURING DEFECTS FOR BRAKE SPEED SENSORS ON ALL SONOMA/S-10 OR EQUIVALENTLY EQUIPPED VEHICLES. *AK

NOTICED A PULL ON THE VEHICLE AND NOTICED ENGINE HAD STOPPED I WAS DRIVING ON THE INTERSTATE GOING 285 NORTH ABOUT 60 MILES PER HOUR. HAD JUST TURNED ON THE AIR CONDITIONER. WAS ABLE TO COAST AND SAFELY PULL OVER TO THE EXIT. *AK ENGINE WOULD TURN BUT NOT START. HAD TO BE TOWED TO DEALERSHIP. WAS SAFE BECAUSE IT WAS SATURDAY AFTERNOON, NO TRAFFIC, PER TECH FUEL PUMP SENSOR FAILURE, THEREAFTER HAD OTHER PROBLEMS IE, HEADLIGHTS OUT, DAYLIGHT RUNNING LIGHTS OUT, HAD RADIO/CD PLAYER PROBLEMS B4 ENGINE FAILURE, WITH INTERMITTENT CHANGING OF STATIONS, RADIO COMMING ON AND OFF, SERVICE ENGINE LIGHT ON. RT TURN SIGNAL LIGHT FAST BLINKING, SINCE I PURCHASED THE VEHICLE THERE HAS ALWAYS BEEN A CONCERN ABOUT THE BRAKES. WHEN HITTING A BUMP IN THE ROAD AND BRAKING, THE CAR SEEMS TO ROLL INSTEAD OF SLOWING OR STOPPING,AND I ALWAYS FEEL IF A VEHICLE WAS IN FRONT OF ME I WOULD HIT THEM. I HAVE AVOIDED MANY INCIDENTS BEING CAREFUL WHEN I BRAKE BUT DURING A PASSING CONVERSATION WITH A TECH DURING OIL CHANGE I DISCUSSED THIS PROBLEM. IT WAS NEVER DOCUMENTED. I MENTIONED MY BRAKE ISSUE AFTER THE TECH FOUND THE BRAKE LIGHT ON AFTER ENGINE SERVICE MY BRAKE CONCERNS HAVE NEVER REALLY BEEN DOCUMENTED. THEY HAVE CHECKED THE BRAKES AND ACTUALLY REPAIRED THEM, THEY ARE WORKING OKAY TODAY. I AM STILL HAVING PROBLEMS WITH BLINKING LIGHT ON MY RADIO,(NEW RADIO/CD BY DEALER) AND DAYTIME RUNNING LIGHTS GOING OUT AGAIN. I BELIEVE IT IS A COMPUTER PROBLEM OR ELECTRICAL SHORT. THIS WEEK MY VEHICLE HAS BEEN CHECKED 3 TIMES. PLEASE NOTE THIS VEHICLE DID NOT OVERHEAT, HAVE BATTERY PROBLEMS, THE ENGINE JUST CUT OFF. TECH THINKS I RAN OUT OF GAS, DEFECT IN GAUGE. I DONT THINK SO. I KEEP ALL OF MY RECEIPTS. MY VEHICLE WAS BUILT APRIL 2002 I PURCHASED AS NEW VECHICLE WITH 127MILES CAN YOU TELL ME IF THERE WAS A PREVIOUS PROBLEM WITH THIS VEHICLE

I CURRENTLY OWN A 2002 GMC SONOMA ZR5 4WD PICKUP. SHORTLY AFTER PURCHASE THE VENT CONTROLS FOR THE A/C UNIT STARTED TO MALFUNCTION. THIS DID NOT SEEM TO BE A BIG DEAL UNTIL LAST WEEK WHEN I WAS TOLD THE PROBLEM HAD BEEN TRACED TO A VACUUM MODULE ON THE TRANSFER CASE THAT CONTROLS SWITCHING IN AND OUT OF 4WD. THE DEALER REPLACED TO DEFECTIVE PART AND RETURNED THE VEHICLE TO ME. ON MONDAY, I WAS DRIVING HOME ON THE INTERSTATE, TOOK MY FOOT OF THE GAS AND STARTED BRAKING FOR THE OFF RAMP. AS I WAS COMING AROUND THE SHARP CURVE ON RAMP, THE TRANSFER CASE TRIED TO SWITCH FROM 2WD TO 4WD. AS YOU MAY BE AWARE, TRUCKS DO NOT HANDLE THE SAME IN 4WD. MY CONCERN IS THE FACT THAT HAD THE ROADS BEEN WET, IT VERY POSSIBLE THAT THE JERK OF SWITCHING TO 4WD ON A SHARP CURVE WOULD CAUSE THE TRUCK TO LOSE TRACTION AND SPIN OUT OF CONTROL. IT SHOULD ALSO BE NOTED THAT DEALER HAS INFORMED ME THAT IT MAY TAKE UP TO THREE WEEKS TO OBTAIN THE PARTS AND REPAIR DAMAGE TO MY TRANSFER CASE AND A/C CONTROLS CAUSED BY THIS DEFECT BUT THE FACTORY HAS MADE NO MODIFICATIONS TO THE CONTROL MODULE AND THIS MAY HAPPEN AGAIN AT ANY TIME. I HAVE INFORMED THE DEALER THAT I WILL NOT ACCEPT THE TRUCK BACK UNTIL GMC CAN ASSURE ME THAT THIS DEFECT HAS BEEN CORRECTED AND WARRANTY ANY FUTURE PROBLEMS THAT MAY ARISE. THE TRUCK CURRENTLY HAS 24,000 MILES BUT ONLY HAD ABOUT 12,000 WHEN THE FIRST MODULE STARTED MALFUNCTIONING. *NLM