2003 GMC YUKON DENALI XL Service Brakes Problems

THERE IS NO WARNING CODE FOR THE HYDRAULIC BRAKE BOOSTER WHEN IT STARTS TO GO BAD THAT SHOWS UP ON THE ABS/ODB SCANNER. YOU WILL BE DRIVING AND ALL OF THE SUDDEN YOUR STEERING GETS STIFF, THE BRAKE PEDAL IS HARD TO PRESS AND YOU CAN'T STOP AS GOOD AS YOUR USED TO IN THE VEHICLE. THIS ISSUE CAN CAUSE ACCIDENTS IF SOMEONE STOPS SUDDENLY IN FRONT OF YOU.

Mileage: 260,545

THE STABILITY CONTROL WARNING HAS COME ON SEVERAL TIMES ON MY VEHICLE. THE BRAKES DO NOT WORK, AS YOU HAVE TO PUSH ALL THE WAY TO THE FLOOR AND SOMETIMES IT TAKES TIME BEFORE THE VEHICLE STOPS. I HAVE HAD BRAKE LINES REPAIRS AND THE PROBLEM STILL IS THERE. WE CANNOT USE VEHICLE UNTIL THE ISSUE IS RESOLVED. OUR MECHANIC ADVISED US TO FILE A COMPLAINT ON THIS ISSUE BECAUSE IT IS AN ACTIVE ISSUE WITH GMC DENALI YUKON'S FOR YEARS. WE NEED ASSISTANCE TO HAVE THIS RESOLVED TO USE OUR VEHICLE.

Mileage: 90,000

I LET MY FREIND TAKE VEHICLE AND SHE SAID WHEN SHE BRAKED THE PEDAL WENT TO FLOOR.SHE WAS HALF MILE AWAY AND MADE IT BACK .I LOOKED AT LEVEL IN MASTER CYLINDER AND HAD TO PUT FLUID IN.NOTICED BRAKE FLUID ON THE UNDERCARRIGE WHICH LED ME TO RUSTED BRAKE LINE UP FRONT.

Mileage: 89,875

I WAS DRIVING WITH MY 14MONTH OLD BABY IN THE CAR AND ALL OF A SUDDEN I HAD NO BRAKES AT ALL. MY PARKING BRAKE COULDN'T STOP ME EITHER SO I PUT THE CAR IN NEUTRAL AND THEN FORCED IT INTO PARK SO I DIDN'T CRASH. THE BRAKE LINES ARE COMPLETELY CORRODED AND I DIDN'T HAVE ANY NOTICE OR IDEA UNTIL THE BRAKES WERE ALREADY GONE.

Mileage: 136,500

A DOG RAN OUT IN FRONT OF ME I APPLIED MY BRAKES AND THE PEDAL WENT TO THE FLOOR HAD IT CHECKED AT BALE CHEVROLET IN LITTLE ROCK ARK. WANTED TO CHARGE ME 6800.00 TO REPAIR HAD IT TOWED BACK TO IL. WHERE I LIVE THAT COST WAS 500.00 BESIDES 200 MILES THAT WAS COVERED BY AAA I,M A 62 YR OLD WOMAN HAD MY GRANDCHILDREN WITH ME IN LITTLE ROCK ARK THIS EXPERIENCE WAS THE SCARIEST TIME IN MY LIFETIME NO WARNING JUST ALL OF A SUDDEN NO BRAKES IN THE WORST TRAFFIC EVER. THE MONEY SPENT ON THIS TRIP WAS VERY EXPENSIVE NOT TO MENTION THE STRESS. *TR

Mileage: 163,975

BRAKE PIPE BLEW OUT FROM CORROSION... LIGHT FRONT DAMAGE TO GMC AND REAR END DAMAGE TO CAR IN FRONT FROM LACK OF BRAKING POWER. *TR

Mileage: 95,500

THE PROBLEM: BRAKES FAILED WHILE VEHICLE WAS RUNNING. AFTER A HARD BRAKE AT A STOPLIGHT AND DRIVING BRIEFLY, THE BRAKE PEDAL WENT STRAIGHT TO THE FLOOR BARELY STOPPING THE VEHICLE. BRAKES WERE EXTREMELY MUSHY TO NON-EXISTENT AT TIMES. REPAIR WORK: LOCAL GMC SERVICE DEPARTMENT INDICATED THE BRAKE LINE HAD RUSTED OUT AND THEY REPLACED IT FOR CLOSE TO $1,600. PER THE INVOICE REPAIRS INCLUDED: BRAKE SYSTEM REPAIR/LABOR, BRAKE FLUSH KIT, PIPE KIT AND FLUID. (WHEN ASKED ABOUT BRAKE LINE ISSUES LATER, THE DEALERSHIP STATED THEY HAVE NEVER HEARD OF ANY PROBLEMS REGARDING THEM WITH GMCS.) HOW IT HAPPENED: WHILE DRIVING WITH MY WIFE AND CHILDREN IN THE VEHICLE, I HAD TO BREAK HARD WHEN I CAME AROUND A BEND TO A RED STOPLIGHT. THOUGH THE BRAKES WORKED, THEY FELT LIKE THEY WERE GIVING JUST A LITTLE AFTER I FINALLY CAME TO A STOP. WE PRECEDED ANOTHER 15-MILES WITH NO INCIDENT AND PULLED INTO RESTAURANT DRIVE-THRU. WHILE SITTING IN THE DRIVE-THRU LANE WITH THE VEHICLE IN GEAR AND MY FOOT ON THE BRAKE, ALL OF A SUDDEN MY FOOT WENT TO STRAIGHT TO THE FLOOR AND THE VEHICLE JUMPED FORWARD. THANKFULLY THERE WAS ENOUGH SPACE BETWEEN MY VEHICLE AND THE VEHICLE IN FRONT OF ME SO THAT I DIDN' HIT THEM. I IMMEDIATELY SHIFTED IT OUT OF GEAR TO STOP THE VEHICLE FROM MOVING FORWARD. AT THIS TIME I NOTICED A WARNING LIGHT HAD COME ON INDICATING TO CHECK BRAKES AND THAT THE ABS WAS OFF. I TESTED THE VEHICLE IN A NEARBY EMPTY PARKING LOT TO SEE IF IT WAS STILL DRIVABLE AND THE BRAKES APPEARED TO HAVE ONLY A LITTLE BIT OF 'STOPPAGE' THOUGH THE PEDAL WAS TO THE FLOOR. I REALIZED IT TOOK 50-100 YARDS TO STOP THE VEHICLE WITH BRAKE FULLY PRESSED AND NO GAS WHEN WE WERE GOING 20-25 M/H. *TR

Mileage: 104,726

TL - THE CONTACT OWNS A 2003 GMC YUKON DENALI XL. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE ABS ENGAGED WITHOUT ANY WARNINGS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE SPEED SENSOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 176,000. PM

Mileage: 176,000

I WAS DRIVING DOWN THE ROAD TO WORK AND I HIT THE BRAKES AND THE BRAKE PEDAL WAS NOT FIRM. I HIT THE BRAKE PEDAL AGAIN AND THE BRAKE PEDAL WENT TO THE FLOOR. I HAD A HARD TIME STOPPING THE BIG SUV AND WOULD HAVE HIT ANOTHER CAR HAD THIS HAPPENED AT A STOP LIGHT OR ANYWHERE WHERE I HAVE TO RELY ON MY BRAKES AS THE STOPPING DISTANCE WAS EASILY QUADRUPLED IF NOT MORE. *TR

Mileage: 150,000

THE BRAKE LINES ON THE ENTIRE VEHICLE WERE FOUND TO BE SEVERELY RUSTED AFTER THE REAR LINES BURST WHILE ATTEMPTING TO STOP FROM 25 MPH. *TR

Mileage: 145,000

BRAKES FAILED WHILE STOPPING AT CROSS WALK. CAUSE OF FAILURE WAS ROTTED BRAKE LINES. *TR

Mileage: 120,000