2012 Chevrolet Volt Brakes Problems

brakes locked up durring a panic stop. abs did not engage. abs code C012E-12 Hydraulic Brake Boost Pressure Loss-Low Input

The contact owns a 2012 Chevrolet Volt. The contact stated while driving 40 MPH, the brake pedal was applied however, the vehicle failed to stop. The contact was able to maneuver the vehicle and coast to a parking lot. There were no warning lights illuminated. The vehicle was towed to the local dealer to be diagnosed. The contact was informed that the brake module modulator needed to be replaced. The contact stated that the failure was related to NHTSA Campaign Number 13V271000: (Electronic Stability Control, Service Brakes). The manufacturer was notified of the failure however, no further assistance was provided. The failure mileage was approximate 84,682. Vehicle exhibited the issues listed in the recall but your VIN is not included.

ANYTIME THE VEHICLE GOES OVER BUMP, POTHOLE, OR PARTICULARLY ROUGH ROAD SURFACE AT THE SAME TIME THAT THE BRAKE PEDAL IS DEPRESSED, THE BRAKES DO NOT ENGAGE AND THE VEHICLE FAILS TO SLOW DOWN. YOU MUST RELEASE THE PEDAL AND APPLY PRESSURE A SECOND TIME IN ORDER TO STOP. THIS OCCURS WHEN THE VEHICLE IS IN MOTION AT ANY SPEED.

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. WHILE DRIVING APPROXIMATELY 25 MPH, THE PRECEDING VEHICLE SUDDENLY STOPPED AND CAUSED THE CONTACT TO SUDDENLY DEPRESS THE BRAKE PEDAL. SINCE THEN, EVERY TIME THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE SHOOK AND THE BRAKE ASSIST WARNING INDICATOR ILLUMINATED. THE CONTACT TOOK THE VEHICLE TO SIMPSON CHEVROLET OF IRVINE (LOCATED AT 21 AUTO CENTER DR, IRVINE, CA 92618, 949-328-6026) WHERE IT WAS DIAGNOSED THAT THE ELECTRONIC BRAKE CONTROL MODULE AND BRAKE PRESSURE MODULATOR VALVE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE FAILURE WAS RELATED TO NHTSA CAMPAIGN NUMBER: 13V271000 (ELECTRONIC STABILITY CONTROL, SERVICE BRAKES); HOWEVER, THE VIN WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED CASE NUMBER: THE APPROXIMATE FAILURE MILEAGE WAS 120,000. [XXX] PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *PM

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. AFTER STARTING THE VEHICLE, THE BRAKE PEDAL MALFUNCTIONED AND WAS VERY DIFFICULT TO DEPRESS. IN ADDITION, THE BRAKE SENSOR REMAINED ILLUMINATED. WHILE DRIVING, THE BRAKING DISTANCE WAS EXTENDED DUE TO THE FAILURE. THE VEHICLE WAS TAKEN TO DAVIDSON CHEVROLET (5871 ROME TYABERG RD, ROME, NY) WHERE IT WAS DIAGNOSED THAT THE ELECTRONIC BRAKE CONTROL MODULE AND BRAKE VALVE MALFUNCTIONED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND THE CONTACT WAS INFORMED THAT THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V271000(SERVICE BRAKES). THE CONTACT INDICATED THAT THE VEHICLE EXPERIENCED THE SAME FAILURE LISTED IN THE RECALL. THE MANUFACTURER WAS NOTIFIED AND NO SOLUTION WAS OFFERED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 98,000.

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. WHILE DRIVING APPROXIMATELY 20 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL TO THE FLOORBOARD, BUT THE VEHICLE FAILED TO STOP. THE CONTACT HAD TO SHIFT THE GEAR INTO PARK IN ORDER TO STOP THE VEHICLE. THE CONTACT COASTED THE VEHICLE TO THE SIDE OF THE ROAD, POWERED OFF AND RESTARTED THE ENGINE, AND WAS ABLE TO DRIVE. THE VEHICLE WAS TAKEN TO SOUTH-PAT O'BRIEN CHEVROLET (3880 PEARL RD, MEDINA, OH 44256, (330) 460-0718) WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER HYDRAULIC AND MASTER CYLINDER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 62,000.

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. ON SEVERAL OCCASIONS, THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE REGENERATIVE BRAKE BEARING. WHILE THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE FAILED TO STOP. AS A RESULT, THE CONTACT HAD TO WAIT FOR THE BRAKE PEDAL TO RETURN TO NORMAL POSITION TO STOP THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 62,000.

THIS CAR RELIES ON REGENERATIVE BRAKING WHEN THE BRAKES ARE FIRST APPLIED. REGENERATIVE BRAKING IS ONLY APPLIED TO THE FRONT WHEELS. WHEN A WHEEL LOSES TRACTION, REGEN BRAKING SWITCHES OFF COMPLETELY AND IMMEDIATELY, AND FRICTION BRAKES TAKE OVER. THE PROBLEM IS THAT THERE IS A DELAY FROM REGEN BRAKING SWITCHING OFF TO THE FRICTION BRAKES ACTIVATING. THIS DELAY CAUSES THE CAR'S BRAKING DISTANCE TO INCREASE BY A CONSIDERABLE AMOUNT, 5-10FT IN MY PERCEPTION. THIS USUALLY HAPPENS ON WET OR SNOWY ROADS. THE CAR SHOULD REALLY ATTEMPT TO KEEP THE PERCEIVED BRAKING FORCE CONSTANT BY APPLYING THE FRICTION BRAKES TO COMPENSATE FOR THE REGEN SWITCHING OFF AND THEN ACTIVATE THE FRICTION BRAKES AND ABS, AS NEEDED, TO LIMIT WHEEL LOCK. THIS WOULD MAKE THE EXPERIENCE A NORMAL ABS ACTIVATION EVENT, WHICH DRIVERS OF ANY MODERN CAR SHOULD BE USED TO.

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. WHILE DRIVING AT VARIOUS SPEEDS, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO RESPOND. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 1,300.

WHEN THE VEHICLE WOULD COME TO A STOP, THE PARKING BRAKE WOULD ENGAGE BY ITSELF. THE ONLY WAY TO DISENGAGE IT WAS TO TURN THE VEHICLE OFF AND ON AGAIN. THE SECOND TIME I DID THIS, THE VEHICLE FAILED TO SHIFT OUT OF PARK, AND THE VEHICLE WAS DISABLED IN THE MIDDLE OF A ROADWAY. THE CAUSE WAS A FAULTY CHARGING PORT SENDING OUT A FALSE PROXIMITY SIGNAL TO THE CAR'S COMPUTER, MAKING IT THINK IT WAS CHARGING...UPDATED 08/27/15 *BF

ON 5-21-14 I WAS DRIVING 25 MPH WHEN I HAD TO DO AN PANIC STOP TO AVOID ANOTHER CAR. AT THIS POINT THE CAR LOST ALL POWER AND MY BRAKES WENT TO FLOOR. I MISSED HITTING THE OTHER CAR BY INCHES. ONCE I RESTARTED THE VOLT IT CAME UP WITH A DASH WARNING TO "SERVICE BRAKES". I DROVE ABOUT 20 MPH FOR 1 MILE TO FIND A SAFE PLACE TO PULL OVER AND PARK. ALL THE WHILE TESTING MY BRAKES AND THEY WERE VERY MUSHY. ONCE I PULLED OVER AND STOPPED ANOTHER WARNING MESSAGE CAME UP ON DASH SAYING "ABS FAILURE". I CALLED AAA AND HAD CAR TAKEN TO DEALERSHIP. IT HAS NOW BEEN AT DEALERSHIP FOR 21 DAYS AND STILL COUNTING WITHOUT EVEN ONE UPDATE FROM DEALERSHIP. ONCE AT DEALERSHIP THE CAR ACTED NORMAL AS IF NOTHING WAS WRONG. *TR

THIS IS THE SECOND TIME I HAVE HAD AN ISSUE WITH THE BRAKES ON MY CHEVROLET VOLT NOT WORKING. THE ISSUE WAS FIRST REPORTED 2 WEEKS AGO. THE WORKED ON THE CAR AND NOW THE SAME ISSUE STARTED GAIN. THIS WAS A VERY SCARY INCIDENT. *TR

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. THE CONTACT STATED THAT WHILE DRIVING 30 MPH, THE BRAKES FAILED TO STOP THE VEHICLE. THE CONTACT WAS ABLE TO STOP THE VEHICLE EVENTUALLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS BUT THEY WERE UNABLE TO DUPLICATE THE PROBLEM. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 6,000.