2003 GMC YUKON Service Brakes Problems

I WAS LEAVING MY DRIVEWAY WHEN THE BRAKE PEDAL ON MY GMC YUKON BLEW OUT. THE LINE HAD RUSTED THOROUGH. THIS OCCURRED IN 2012. SINCE THEN AS A GM TECHNICIAN I HAVE SEEN AND HEARD OF CUSTOMERS, FRIENDS AND NEIGHBORS WITH GM TRUCKS HAVE THEIR BRAKE LINES BLOW OUT FROM RUST. GM HAS A REAL ISSUE WHICH SHOULD BE INVESTIGATED. THE BRAKES LINES ON THEIR TRUCK MODELS TEND TO RUST OUT. GM HAS NOT ISSUED A RECALL BUT OFFERED A NEW BRAKE LINE KIT. MY QUESTION TO YOU IS WHY? I HAVE NOT SEEN THIS ISSUE ON THE SAME MODEL YEAR GM CARS. AS FAR AS I KNOW NO ONE HAS DIED AS A RESULT BUT THERE HAS TO HAVE BEEN INJURIES. IS IT NOT YOUR JOB TO INVESTIGATE THIS ISSUE? ONCE AGAIN WHY?

Mileage: 156,000

THE RIGHT FRONT DRIVERS SIDE HUBS WAS ABOUT TO COME OFF AND MY ENTIRE BRAKING SYSTEM WENT OUT WHILE DRIVING ON THE HIGHWAY.

Mileage: 109,000

MY BRAKE LINES ARE RUSTED OUT AS DESCRIBE IN THE ARTICLE BELOW. COSTING ME OVER 650.00 TO REPAIR. LESS THAN 115K ON MY CAR! NEVER HAD TO REPLACE BRAKE LINES BEFORE... I LOST MY BRAKE UN-EXPECTANTLY DURING A RAIN STORM IN COHASSET, MA ON 1/10/2017. LUCKILY I WAS ON A SIDE ROAD COMING TO A STOP SIGN AND NO ACCIDENT OCCURRED NOR WERE MY 3 KIDS IN THE VEHICLE. I SAW THIS ARTICLE BELOW AND DECIDED TO WRITE YOU. HTTPS://WWW.CONSUMERAFFAIRS.COM/NEWS/CONSUMERS-COMPLAIN-OF-CORRODED-BRAKE-LINES-IN-OLDER-GM-TRUCKS-013014.HTML

Mileage: 115,000

TL* THE CONTACT OWNS A 2003 GMC YUKON. WITHOUT WARNING, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD AND BRAKE FLUID WAS LEAKING. A MECHANIC REPLACED THE REAR BRAKE LINES; HOWEVER, 1,000 MILES LATER, THE FRONT BRAKE LINES ALSO FRACTURED. THE MECHANIC REPLACED THE FRONT BRAKE LINES AND INDICATED THAT THERE WAS EXTENSIVE RUST AND CORROSION. ALL OF THE BRAKE LINES NEEDED TO BE REPLACED OR THE FAILURE COULD RECUR. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 04V045000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.

Mileage: 100,000

TL* THE CONTACT OWNS A 2003 GMC YUKON. WHILE DRIVING APPROXIMATELY 40 MPH, THE BRAKES FAILED TO WORK. WHILE ATTEMPTING TO SLOW DOWN, THE BRAKE PEDAL WENT TO THE FLOOR WHEN IT WAS DEPRESSED, BUT FAILED TO STOP THE VEHICLE. THE ABS INDICATOR ILLUMINATED. THE CONTACT SLOWLY DROVE THE VEHICLE TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE HYDRAULIC UNIT NEEDED TO BE REPLACED. THE TECHNICIAN REFERRED THE CONTACT TO A LOCAL DEALER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VIN WAS NOT PROVIDED. THE FAILURE MILEAGE WAS 142,000.

Mileage: 142,000

WHILE APPROACHING AN INTERSECTION I APPLIED THE BRAKES THE PEDAL WENT TO THE FLOOR ABS LIGHT CAME ON AND THE WAS TOTAL BRAKE FAILURE. GUIDED THE VEHICLE OFF THE ROAD AND HAD IT TOWED TO THE SHOP. THEY FOUND RUSTED BRAKE LINES AT THE ABS VALVE ALONG WITH A RUSTED BACKING PLATE FOR THE VALVE. IN ORDER TO IMPROVE VEHICLE SAFETY THE LINES WILL ALL BE REPLACED WITH STAINLESS STEEL SO THIS DOESN'T HAPPEN AGAIN. THIS IS A VERY POOR DESIGN SINCE A SINGLE FAILURE SHOULD NOT CAUSE TOTAL FAILURE OF A SUPPOSED DUAL BREAKING SYSTEM.

Mileage: 203,000

TOTAL BRAKE FAILURE WHILE STATIONARY AND ENGAGING DRIVE MODE IN DRIVEWAY. BRAKE PEDAL WENT TO FLOOR. PARKING BRAKE ALSO SOFT AND INEFFECTIVE BUT RESTORED NORMAL CONDITION SHORTLY THEREAFTER.. NO BRAKE OR ABS SYSTEM SERVICE ALERTS OR FAULT WARNINGS PRIOR TO FAILURE. 'SERVICE BRAKE SYSTEM' ALERT PRESENT AFTER FAILURE. NO OBDS CODES PRESENT. SUSPECT BRAKE LINE CORROSION. APPROXIMATELY 170,000 MILES. RECENT TIRE/BRAKE/ALIGNMENT INSPECTION REVEALED NO ISSUES. THIS IS A VERY CLEAN, "NEW TO ME" USED VEHICLE WITH AN EXCELLENT RECORD OF SERVICE. HAD JUST COMPLETED A TROUBLE FREE 2400 MILE INTERSTATE ROAD TRIP.

Mileage: 170,000

I WAS TOWING A 17' BOAT AND CAME TO A STOP SIGN. I PRESSED THE BRAKE PEDAL AND IT WENT TO THE FLOOR. THE YUKON DID NOT SLOW AT ALL. FORTUNATELY, NO ONE WAS COMING AND I ROLLED THROUGH THE STOP SIGN, MADE A RIGHT TURN, AND WENT DOWN A STEEPER HILL. PUMPING THE BRAKES AS I WENT HAD NO EFFECT. THE DASH SHOWED A 'SERVICE BRAKE' MESSAGE. I APPLIED THE PARKING BRAKE AND DOWN-SHIFTED, WHICH SLOWED IT ENOUGH THAT I WAS ABLE TO SWING WIDE INTO THE OPPOSING TRAFFIC LANE AND BARELY MAKE THE TURN AT THE BOTTOM OF THE HILL. I PULLED OFF TO THE SIDE OF THE ROAD WITH THE RIGHT-WHEELS ON A SOFT SHOULDER BEFORE THE VEHICLE SLOWLY CAME TO A STOP. I REFILLED THE BRAKE RESERVOIR AND HAD MY WIFE PRESS THE BRAKE PEDAL. IT WENT TO THE FLOOR AS BRAKE FLUID SHOT ONTO THE HOT EXHAUST MANIFOLD, LEAKING FROM A RUSTED JOINT WHERE THE STEEL BRAKE LINE JOINED A FLEXIBLE, BRAIDED LINE UNDER THE HOOD. THE BRAKE LINES WERE HORRIBLY RUSTED, UNLIKE ANYTHING I HAD EVER SEEN IN MY 35+ YEARS OF DRIVING AND OWNING VEHICLES (INCLUDING 20 CARS AND LIGHT TRUCKS). THIS YUKON HAS SPENT ITS ENTIRE LIFE REGISTERED IN VIRGINIA AND HAS LESS THAN 80K MILES ON IT. I CAN'T IMAGINE WHAT THEY ARE LIKE IN NORTHERN STATES. LOOKING ONLINE, I DISCOVERED THAT THIS WAS A KNOWN PROBLEM THAT THE NHTSA HAD INVESTIGATED. WHY WAS I NOT WARNED? I COULD HAVE BEEN INJURED OR KILLED, AS COULD HAVE ANOTHER MOTORIST OR PEDESTRIAN! WHEN I CALLED MY LOCAL GMC DEALER (OURISMAN OF ALEXANDRIA, VA), THE SERVICE ADVISOR CLAIMED TO BE UNAWARE OF THE PROBLEM, THE GM SERVICE BULLETINS THAT HAD BEEN ISSUED ON IT, AND THE AVAILABILITY OF THE PRE-BENT LINES AS A DISCOUNTED KIT FROM GM. HE ESTIMATED A FOUR-FIGURE LABOR BILL TO DO THE WORK, SO I AM DOING AS MUCH OF IT AS I CAN MYSELF USING NICKEL-COPPER BRAKE LINE AND A FLARING TOOL. PEOPLE ARE GOING TO DIE FROM THIS IF THE NHTSA DOES NOT FORCE GM TO DO A RECALL.

Mileage: 75,000

LOST ALL BRAKING , TOOK TRUCK TO REPAIR SHOP AND THE BRAKE LINES HAD CORRODED AND HAD SEVERAL HOLES IN THEM. I HAD TO REPLACE ALL THE METAL LINES ON THE VEHICLE. BRAKES WERE FINE HOOKED UP UTILITY TRAILER AND PULLED OUT OF MY DRIVEWAY. GOING DOWN HILL, APPLIED BRAKES AND THE PEDAL WENT ALL THE WAY TO THE FLOOR.

Mileage: 219,000

BRAKE LINE FAILURE - ST. LOUIS MO. BRAKES FAILED WHILE ATTEMPTING TO SLOW FROM 60MPH SPEED ON CHRISTMAS DAY. NARROWLY ESCAPED ACCIDENT/COLLISION. 2 BRAKE LINES WERE FOUND RUPTURED/SPLIT DUE FROM RUST/CORROSION THEN REPAIRED. OTHER BRAKE LINES ARE SHOWING CORROSION & WILL NEED ATTENTION SOON. VEHICLE IS 2003 GMC YUKON WITH 101,300 MILES.

Mileage: 101,200

TL* THE CONTACT OWNS A 2003 GMC YUKON. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL AND IT TRAVELED ALL THE WAY DOWN TO THE FLOORBOARD. THE CONTACT HAD TO GEAR DOWN IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE FLUID LINE NEEDED REPLACEMENT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 113,000.

Mileage: 113,000

THERE IS A RECALL #05068 THAT DESCRIBES EXACTLY WHAT HAPPENS WHILE DRIVING MY CAR. IT OCCURS EVERY TIME I DRIVE MY CAR, EVERY TIME I ACCELERATE AND BRAKE. (2003 GMC YUKON XL). HOWEVER, GMC CLAIMS MY CAR "ISN'T EFFECTED" AND THEY REFUSE TO FIX IT. MY ISSUES ARE 1. GETTING DANGEROUS, AS THE CAR BOGS AND WON'T ACCELERATE WITHOUT A PERIOD OF HESITATION AND THEN IT GIVES TOO MUCH ACCELERATION WHICH CAN BE BAD IF I'M ON A SLIPPERY SURFACE. ALSO, THERE IS A COMMON PROBLEM ON THESE VEHICLES WHICH IS ANOTHER PROBLEM I AM EXPERIENCING: 2. MY ABS KICKS IN RANDOMLY, EVEN IF THE PAVEMENT IS TOTALLY DRY AND CLEAR. APPARENTLY, THIS IS CAUSED BY A CORRODED MOUNTING SURFACE FOR THE FRONT WHEEL SPEED SENSORS. THE CORROSION BUILDS UP CAUSING EXCESSIVE GAP BETWEEN MOUNTING SURFACE AND WHEEL SPEED SENSOR WHICH CAUSES A LOSS OF WHEEL SPEED SENSOR SIGNAL. WHEN THE ABS MODULE SEES THE LOSS OF SIGNAL IT THINKS THE VEHICLE IS SLIDING OUT OF CONTROL SO IT WILL ACTIVATE THE TRACTION CONTROL OR ABS. DESCRIPTION FROM RECALL #05068: CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT... HAZARD:THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.

Mileage: 110,000

I LOST ALL BRAKING ABILITY WHILE TRAVELING THE INTERSTATE HIGHWAY. I WAS ABLE TO STOP THE VEHICLE AND FOUND BRAKE FLUID FLOWING FROM THE MAIN BRAKE LINE FEEDING THE ANTI-LOCK CONTROLLER.

Mileage: 155,000

REAR BRAKE LINE BURST WITHOUT WARNING AND BRAKE PEDAL WENT TO THE FLOOR. UPON INSPECTION THE BRAKE LINE IS COMPLETELY RUSTED OUT. *TR

Mileage: 132,800

BRAKE LINE GOING TO REAR BRAKES WAS RUSTED OUT. SITUATION LUCKILY HAPPENED WHILE MY WIFE WAS BACKING OUT OF THE DRIVEWAY. NO HARM OR INJURY OCCURRED. DISABLED VEHICLE. FURTHER INSPECTION SHOWS THAT ALL BRAKE LINES ARE SUSPECT AND WILL NEED TO BE REPLACED. *TR

Mileage: 227,000

I HAD A BRAKING PROBLEM MARCH 2015, CORROSION OF THE BRAKE LINES. I HAVE A 2003 YUKON 2500 QUADRASTEER. I WAS DRIVING MY TRUCK WHEN THE BRAKES WENT. THERE WAS NO WARNING LIGHT!!!!! I PUSHED THE BRAKE PEDAL PRACTICALLY TO THE FLOOR, I WAS ABLE TO ROLL INTO A PARKING LOT. WHEN I GOT OUT THERE WAS BRAKE FLUID POURING OUT FROM THE BRAKE LINES TOWARDS THE REAR OF THE VEHICLE. WHY GM RUNS THE LINES RIGHT ALONG THE FRONT OF THE VEHICLE UNDERCARRIAGE IS A MYSTERY TO ME. IT IS JUST GOING TO BE EXPOSED TO SALT! I LIVE IN MICHIGAN AND WE USE A LOT OF SALT IN THE WINTER MONTHS. YES THINGS DO RUST, BUT I ALWAYS WASH THE UNDERCARRIAGE OF MY TRUCK! IT'S A CASE OF POOR ENGINEERING AND IT LEADS TO PREMATURE CORROSION. I AM A MOTHER OF 3 YOUNG CHILDREN AND THANK GOD THEY WERE NOT IN THE VEHICLE AT THE TIME THIS HAPPENED. *TR

Mileage: 89,000

WHILE STOPPING FROM LOW SPEEDS THE ABS SYSTEM ACTIVATES ON DRY SURFACES. THIS CAUSES INCREASED STOPPING DISTANCES. *JS

Mileage: 155,000

MY DAUGHTER WAS DRIVING HER SON, OUR GRANDSON, HOME FROM SCHOOL IN MY YUKON. AS SHE WAS LEAVING THE CITY LIMITS JUST STARTING TO GET UP TO LEGAL 55 MPH AND THE BRAKE SYSTEM COMPLETELY FAILED WITHOUT WARNING. SHE FORTUNATELY SAW A BODY SHOP AND MANAGED TO MANEUVER THE VEHICLE IN THERE AND DOWN SHIFTED TO STOP. SHE WAS FORTUNATE TO FIND THIS LOCATION. AS YOU LEAVE TOWN THERE IS A LARGE HILL WE ARE THANKFUL THE BRAKES DID NOT FAIL AS SHE WAS GOING DOWN IT. I JUST AM UPSET THERE WAS NO WARNING, AND WE FIND OUT THE WHOLE BRAKE LINE FAILED. IT IS HARD TO IMAGINE WHAT COULD HAVE HAPPENED. *TR

Mileage: 137,123

MY BRAKES WOULD ENGAGE BUT THEY WILL NOT DISENGAGED AND MY BRAKES ARE BURINGING AND SMELLING LIKE BURNT RUBBER. BRAKES ARE ALSO STICKING. THE ELECTRICAL SYSTEM KEEPS BLINKING ON AND OFF. REPLACE FUSE BUT STILL NOT WORKING. NOT DISPLAYING THE CORRECT SPEED ON DASH BOARD I'M GOING SLOWER THAN THE SPEED SAY. *TR

I OWN A 2003 YOUKON XL WENT TO STOP HARD TRUCK TOOK TO LONG TO STOP. WENT TO SMITHTOWN CHEV SAYS BRAKE LINES RUSTY AND THERE IS SEEPAGE AT ALL FITTINGS. TRUCK LAID UP. *TR

Mileage: 129,000

TL* THE CONTACT OWNS A 2003 GMC YUKON. THE CONTACT STATED THAT THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. IN ADDITION, THE CONTACT STATED THAT THE WAS A LEAK COMING FROM UNDER THE VEHICLE. THE CONTACT DISCOVERED THAT THE BRAKE LINES WERE ENTIRELY RUSTED OUT AND FRACTURED. THE VEHICLE WAS NOT ABLE TO BE DRIVEN AND WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 04V045000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 138,000.

Mileage: 138,000

BRAKE LINE FAILURE FROM ABS TO MASTER CYLINDER DUE TO CORROSION. UPON INSPECTION BOTH LINES NEEDED REPLACEMENT WITH CORROSION PRESENT ON THE OTHER LINES, TOO. *JS

Mileage: 21,000

TL* THE CONTACT OWNS A 2003 GMC YUKON. THE CONTACT STATED THAT THE ABS WARNING INDICATOR ILLUMINATED AS THE ANTI LOCK BRAKES FAILED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE PUMP AND THE MODULATOR HAD TO BE REPLACED. THE DEALER WAS NOTIFIED OF THE PROBLEM. HOWEVER, THE PART WAS NOT AVAILABLE TO DO THE REPAIRS. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 113,389. UPDATED 09/02/14*LJ UPDATED 09/17/2014 *JS

Mileage: 113,389

WHILE TRAVELING HOME THIS MORNING FROM A BALL GAME ON NC BACK ROADS WITH OUR TWO CHILDREN, MY WIFE [XXX] SAID THE BRAKES FAILED AND THE WARNING LIGHT CAME ON AND THE BUZZER SOUNDED. UNABLE TO STOP, THEY ROLLED THROUGH A STOP SIGN AND PULLED INTO A CHURCH PARKING LOT. UPON INSPECTION, BRAKE FLUID WAS DRIPPING FROM A RUSTED BRAKE LINE JUST INSIDE THE LEFT REAR WHEEL. I PURCHASED THE VEHICLE NEW AND IT HAS BEEN IN THE CHARLOTTE, NC AREA MOST OF ITS SERVICE LIFE. ANNUAL TRIPS TO NORTHERN MICHIGAN WITH PROPER POST TRIP WASHINGS SHOULD NOT HAVE CREATED THIS AMOUNT OF RUST AND CORROSION ON KEY COMPONENTS SUCH AS THE BRAKE LINES. THIS KNOWN PROBLEM MUST RELATE TO THE INFERIOR QUALITY OF METAL OF GM ALLOWED THE SUPPLIER TO USE. THE NUMEROUS FAILURES I'VE READ ABOUT HAVE NOT BEEN LIMITED TO THE NORTHERN CLIMATES AND CONSEQUENTLY WILL RESULT IN NUMEROUS DEATHS AS THESE VEHICLES AGE FURTHER. ANSWERING THE PROBLEM LAST FALL WITH PRE MADE REPLACEMENT BRAKE LINES FOR CUSTOMERS TO BUY AND HAVE INSTALLED FALLS SHORT OF MEETING GM'S OBLIGATION TO DELIVER SAFE AND RELIABLE VEHICLES. THE AFFECTED VEHICLES SHOULD BE INSPECTED AND REPAIRED PROACTIVELY BY GM ASAP. SEVERAL YEARS AGO SUBARU PROMPTLY RECALLED THEIR CORRODED BRAKE LINES; WHY HAS GM BEEN GIVEN A PASS? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) *JS

Mileage: 170,303

REAR BRAKE LINE OPENED UP CAUSING THE REAR BRAKES TO FAIL AND EMPTY MASTER CYLINDER. FRONT BRAKES BARELY WORK. ESTIMATED COST FROM LOCAL FIRESTONE DEALER TO BE ABOUT 600.00. *TR

Mileage: 125,500

ALL AUTOMOBILES IN NORTH-AMERICA SHOULD HAVE STAINLESS STEEL BRAKE LINES AND FUEL LINES TO PREVENT CORROSION, IT ONLY MAKES SENSE AND ITS NOT THE END OF THE WORLD AS FAR AS COST; BRAKE FAILURE IS PROBABLY THE MOST DANGEROUS THING THAT CAN HAPPEN THAT CAN BE LIFE THREATENING. I AM AWARE THAT AUTO MANUFACTURERS WANT US TO REPLACE COMPONENTS AND MAKE MONEY DOWN THE LINE, BUT BRAKE COMPONENTS SUCH AS BRAKE LINES HAVE TO BE EXCLUDED FROM THIS. *TR

Mileage: 200,000

COMING TO A STOP TO MAKE A LEFT HAND TURN, LIGHT COATING OF SNOW ON THE ROAD MADE IT SLIPPERY, ABS BRAKING CYCLED I HELD BRAKE PEDAL DOWN AS THE MANUALS SAY TO DO WITH ABS SYSTEM, TRUCK SLOWED ABS CYCLED AGAIN AND THEN PEDAL WENT TO THE FLOOR. MY VEHICLE ENDED UP SIDEWAYS IN ROAD AND THIRTY FEET FROM MY TURN AND NEARLY IN A DITCH, I THEN BACKED UP TO MAKE MY TURN AND BRAKES WENT TO THE FLOOR AGAIN AS I STOPPED TO ENTER MY ROAD , FORTUNATELY MY HOME WAS ONLY ABOUT 500 YARDS FROM THIS SPOT. I HAD ALMOST NO BRAKES AT ALL AS I ENTERED MY DRIVEWAY AND PARKED.I THEN INSPECTED FLUID LEVEL IN MASTER CYLINDER WHICH APPEARED FULL , FROM THERE I FOLLOWED LINE DOWN TO THE ABS MODULE TO THE BRAIDED BRAKE LINE AND STILL SAW NO LEAKS, THEN FOLLOWED THE BRAIDED BRAKE LINE TO THE BRAKE LINE TUBING TO THE FRAME BEHIND THE WHEEL WELL WHERE THE LINE CLOSEST TO THE WHEEL WELL WAS LEAKING FLUID AND IT HAD SPRAYED ALL OVER THE LINE AND UNDER CARRIAGE AND FRAME AND WHEEL HOUSING SHROUD. THE LINE IS RUSTED OUT AND BURST THE TRUCK HAS LESS THAN 80000 MILES ON IT AND IS WELL MAINTAINED AND I BOUGHT THIS TRUCK NEW WITH 8 MILES ON IT AND PAID $43000 FOR IT. THIS IS HORRENDOUS AND INCREDIBLY DANGEROUS THERE WAS NO STOPPING POWER AT ALL, HAD THIS HAPPENED ON THE HIGHWAY OR AT A BUSY INTERSECTION THERE WOULD HAVE BEEN A COLLISION. *TR

Mileage: 76,888

LOST ALL BRAKING WHEN ATTEMPTING TO STOP FOR TRAFFIC SIGNAL. PEDAL WENT TO FLOOR- NO WARNING . BRAKE LINE FROM FRONT TO BACK RUSTED THRU. *TR

Mileage: 86,700

WAS BACKING UP INTO PARKING SPACE AND APPLIED BRAKES TO STOP. BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR WITH NO BRAKING CAPABILITY. HAD VEHICLE TOWED TO SERVICE FACILITY AND THEY REPORTED THAT THE FRONT BRAKE LINES HAD RUSTED THROUGH CAUSING FLUID TO BE PUSHED OUT. I THOUGHT THAT THESE VEHICLES HAD A DUAL BRAKE CYLINDER SO THAT THERE WOULD BE BRAKING CAPABILITY ON THE REAR BRAKES BUT THAT DID NOT HAPPEN. FORTUNATELY WAS GOING SLOW AND APPLIED EMERGENCY BRAKE TO STOP. PAID REPAIR FACILITY TO REPLACE FRONT BRAKE LINES. SECOND INCIDENT OCCURRED ON NOVEMBER, 2013 WHERE I APPLIED BRAKES PRIOR TO MOVING TRANSMISSION FROM PARK TO DRIVE WHILE ON A HILL. WHEN I APPLIED BRAKES THE PEDAL WENT ALL THE WAY TO THE FLOOR WITH NO BRAKING CAPABILITY. I DETERMINED THAT THE LEFT REAR BRAKE LINE IS SPEWING FLUID. AGAIN, NO BRAKING CAPABILITY IN THE FRONT BRAKE SYSTEM. HAD VEHICLE TOWED TO A REPAIR FACILITY. I ASSUME THAT THE REAR BRAKE LINES HAVE ALSO RUSTED THROUGH. I HAVE READ NUMEROUS INCIDENTS ON INTERNET ABOUT GMC BRAKE LINES RUSTING. THIS IS A SERIOUS PROBLEM AS THERE IS NO BRAKING ABILITY AT ALL EXCEPT FOR THE EMERGENCY BRAKE IF ONE OF THE BRAKE LINES RUSTS. FIRST, THESE LINES SHOULD BE MADE OF MATERIALS THAT DO NOT RUST. I HAVE MULTIPLE 60'S AND 70'S VEHICLES WHERE THE BRAKE LINES ARE NOT RUSTED. SECOND, THERE IS A PROBLEM IN THE DUAL MASTER CYLINDER OF THESE VEHICLES WHERE THEY FAIL TO WORK WHEN EITHER THE FRONT OR THE REAR LINES FAIL. *TR

Mileage: 61,007

I WAS BACKING OUT OF THE DRIVEWAY AND THE REAR STEEL BRAKE LINE BLEW OUT. I KNOW THE CAR IS 10 YEARS OLD, BUT I LIVE IN SOUTHERN VIRGINIA WHERE WE VERY RARELY GET SNOW AND THEY NEVER SALT THE ROADS. *TR

WHILE DRIVING THROUGH TOWN; BRAKES JUST COMPLETELY GAVE OUT. I HAD TO USE THE EMERGENCY BRAKE TO GET TO THE SHOP.

Mileage: 168,000

BRAKE LINES CORROSION CAUSED TOTAL BRAKE SYSTEM FAILURE. FORTUNATELY, NO ONE WAS INJURED OR KILLED. *TR

Mileage: 130,000

WHILE DRIVING DOWN A HILL IN ORILLIA ONTARIO CANADA, I HAD A SUDDEN LOSS OF BRAKES. I WAS ABLE TO SWERVE THROUGH 3 LANES OF TRAFFIC AND AFTER NEARLY HITTING ANOTHER CAR IN A SERVICE STATION PARKING LOT I BROUGHT THE VEHICLE TO A STOP. MY BROTHER CHECKED THE VEHICLE AND FOUND THAT ALL BRAKE FLUID HAD LEAKED OUT OF A RUPTURED CORRODED BRAKE LINE NEXT TO THE ABS SENSOR UNDER THE DRIVER SIDE OF THE VEHICLE. PLEASE ADD MY NAME TO THE LIST OF OVER 110 OTHER COMPLAINTS REGARDING BRAKE LINES WHICH ARE CORRODED. *TR

Mileage: 201,000

WHILE TRAVELING AT A SPEED OF 45 MPH ON ROUTE 47 NORTH OF YORKVILLE, ILLINOIS, I APPLIED THE BRAKES AT A YELLOW LIGHT AT THE INTERSECTION OF CANNONBALL ROAD. THE PEDAL WENT ALL THE WAY TO THE FLOOR AND I PASSED RIGHT THROUGH THE INTERSECTION ON RED! THE ONLY WAY I COULD STOP WAS TO VEER OFF OF THE ROAD INTO THE GRASS. THE BRAKE LINE THAT FEEDS THE FRONT WHEELS RUSTED THROUGH AND ONE BROKE. I THOUGHT THAT A SPLIT SYSTEM THE REAR WOULD STILL WORK? *TR

Mileage: 111,800

I STOPPED TO FILL THE YUKON UP WITH GAS. WHEN I TURNED THE TRUCK BACK ON AND PULLED OUT OF THE GAS STATION I HAD NO BRAKES. THEY WENT COMPLETELY TO THE FLOOR. UNFORTUNATELY A LOG TRUCK WAS COMING DOWN THE ROAD AND I ROLLED OUT IN FRONT OF HIM. THANK GOODNESS HE WAS ABLE TO SWERVE AROUND ME. HE LEFT ME A FEW HAND SIGNS TO LET ME KNOW HE WAS NOT HAPPY WITH ME. WHILE THERE WAS NO ACCIDENT CAUSED, I COULD'VE BEEN KILLED DUE TO THIS! I AM NOT HAPPY TO GET ON LINE AND READ THIS HAS BEEN AN EXISTING PROBLEM WITH THE 2003 GMC'S. THERE NEEDS TO BE A RECALL IN REGARDS TO THIS. MY YUKON HAS ALWAYS BEEN SERVICED, INSPECTED AND WELL KEPT. THERE WAS NO INDICATION THIS WAS GOING TO HAPPEN. I LITERALLY JUST HAD NO BRAKES. *TR

Mileage: 150,000

WAS DRIVING DOWN MY STREET @ 20MPH, STARTED TO BRAKE ABOUT 150 FEET BEFORE THE STOP SIGN. THE BRAKE PEDAL WENT TO ABOUT 1/2 TO 3/4 INCHES ABOVE THE FLOORBOARD BEFORE I CAME TO A STOP...ABOUT 5-6 INCHES OF PEDAL PLAY. I IMMEDIATELY TRAVELED TO MY AUTO REPAIR BUSINESS DOING A LOT OF DOWNSHIFTING AND SLOW SPEED TRAVEL SO AS NOT TO CAUSE FURTHER DAMAGE OR AN ACCIDENT. MY ABS HAS BEEN DISCONNECTED DUE TO CORROSION AND THE PROHIBITIVE COST OF REPAIRING/REPLACING IT(APPROX.$1600!!). I JUST DRIVE CAUTIOUSLY JUST LIKE WHEN ABS DIDN'T EXIST. THE TECHNICIAN INSPECTED, HE FOUND 2 FAILED LEAKING STEEL BRAKE LINES...THE REST OF THE BRAKE LINES WERE SEVERELY RUSTED. THE TECH RE-CONSTRUCTED THE BRAKE LINES FROM SCRATCH USING A CORROSION-RESISTANT ALLOY TUBING. THIS TUBING SHOULD NOT NEED REPLACING AGAIN. TECH ALSO LABORED AND EXTRACTED BRAKE BLEED VALVES FROM CALIPERS. THESE WERE TINY RUSTED NUBS. TECH RE-ASSEMBLED, FILLED AND BLED THE ENTIRE BRAKE SYSTEM, RE-TESTED FOR LEAKS AND PROPER OPERATION.ALL REPLACEMENT LINES WERE CUSTOM-BENT FROM BULK TUBING. THE BLEEDING PROCESS TOOK OVER 2 HOURS BECAUSE THE ABS UNIT WAS IN-OPERATIVE. 10 1/2 HRS OF TECH'S TIME WAS USED. THE ACTUAL BRAKES AND COMPONENTS AT THE4 WHEELS REMAIN UNCHANGED. THE ENTIRE BILL CAME OUT AT CLOSE TO $1100 BUT WAS DISCOUNTED BY $200 DUE TO CUSTOMER LOYALTY,THANKS!!! THERE ARE CLOSE TO 900 COMPLAINTS ALREADY CONCERNING THIS PROBLEM WITH THESE FULL-SIZED GM PRODUCTS. YES I DO LIVE IN THE SO=CALLED RUST-BELT( CLEVELAND OHIO AREA). BUT I DO KNOW THAT THIS INCIDENT COULD HAVE RESULTED IN AN ACCIDENT HAD IT OCCURRED AT A DIFFERENT TIME AND LOCATION. *TR

Mileage: 126,249

BRAKE LINE FAILURE DUE TO CORROSION. *TR

Mileage: 222,677

ON DEC. 4, 2012 HEADING NORTH ON THE NJ TPKE TOWARD THE GW BRIDGE AND GOT CUT OFF. HIT THE BRAKE AND THE DASH BOARD LIT UP, THE BRAKES WERE FAILING, PEDAL WENT TO THE FLOOR. I HAD NO BREAKS. ABLE TO STEER CLEAR OF TRAFFIC. SLOWED THE CAR BY LOWERING GEAR AND PUMPING BRAKE AND ENTERED THE TOLL FOR GW IN A CASH LANE IN ORDER TO GET HELP. ABLE TO STOP CAR WITHOUT INCIDENT BUT ONLY BECAUSE IT WAS VERY LATE (9PM) AND TRAFFIC WAS LIGHT. *TR

Mileage: 136,439

I WAS DRIVING ON A 2 LANE HIGHWAY COMING TO AN INTERSECTION TO MAKE A LEFT TURN. THE LEFT HAND TRAFFIC SIGNAL ARROW WAS GREEN AS I APPROACH THE LIGHT, APPROX 300 FEET AWAY THE ARROW LIGHT TURN YELLOW, I TOOK MY FOOT OFF THE ACCELERATOR TO HIT THE BREAKS AND THEY WENT TO THE FLOOR, ON COMING TRAFFIC WAS STILL STOPPED WHEN I REALIZED I WAS NOT STOPPING AND HAD TO GO THROUGH THE RED ARROW LIGHT. I TRIED TO USE MY EMERGENCY BRAKE AFTER MAKING THE TURN ON RED, THAT BRAKE ALSO WENT TO THE FLOOR BUT SEEM TO SLOW ME DOWN ENOUGH SO I COULD PULL INTO A MALL PARKING LOT AND HIT THE CURB SIDE TO STOP THE VEHICLE COMPLETELY. *TR

Mileage: 140,000

I NOTICED BRAKE FLUID ON DRIVEWAY. FURTHER INSPECTION SHOWS" HEAVY" RUST ON METAL BRAKE FLUID LINES ALONG FRAME. I FOUND LEAK IN METAL LINE ON LT REAR LINE MASTER CYL LEVEL WAS LOW . LEAK APPEARS TO HAVE STARTED WITHIN THE LAST FEW DAYS. . VEHICLE WAS PURCHASED NEW AND IS IN VERY GOOD CONDITION . I WORK WITH ANOTHER YUKON OWNER [ 2000 YUKON XL] . HE HAD EXACT SAME PROBLEM . LUCKILY I FOUND IT BEFORE ANY ACCIDENT OCCURRED. *TR

Mileage: 97,000