2003 GMC YUKON XL Complaints

THE BRAKES FAILED WHILE DRIVING ON A CITY STREET CAUSING MY VEHICLE TO NEARLY STRIKE A NUMBER OF CHILDREN AT A CROSSWALK. AFTER EXAMINATION BY A MECHANIC, IT WAS DETERMINED THAT THE BRAKE LINE HAD CORRODED AND BURST UNDER PRESSURE. I HAVE RECEIVED NO NOTICE OF THIS POTENTIAL FAILURE FROM GMC EVEN THOUGH IT HAS BEEN INVESTIGATED BY THE NHTSA. SHOULDN'T THE MANUFACTURER HAVE AN OBLIGATION TO REPAIR THIS POTENTIALLY LETHAL PROBLEM? AT A MINIMUM I FEEL THAT GMC AND/OR THE NHTSA HAVE A MORAL OBLIGATION TO NOTIFY OWNERS OF AFFECTED VEHICLES THAT THEY ARE DRIVING A POTENTIALLY DEADLY VEHICLE.

TL* THE CONTACT OWNS A 2003 GMC YUKON XL 1500. THE CONTACT MENTIONED THAT THE PREVIOUS OWNER OF THE VEHICLE EXPERIENCED A FAILURE WITH THE REDUCED ENGINE POWER WARNING INDICATOR. THE DEALER REPLACED THE THROTTLE BODY, BUT THE FAILURE CONTINUED BEFORE THE CONTACT OWNED THE VEHICLE. THE CONTACT EXPERIENCED THE WARNING LIGHT RANDOMLY FLASHING, WHICH DRASTICALLY REDUCED THE SPEED TO LESS THAN 20 MPH. THE CONTACT HAD TO CONSTANTLY TURN OFF AND RESTART THE VEHICLE, BUT THE FAILURE CONTINUED TO PROGRESS RANDOMLY. THE DEALER REPLACED THE WIRING, 02 SENSOR, THE THROTTLE BODY WAS REPLACED A SECOND TIME, THE BATTERY, AND THE ALTERNATOR. THE REPAIRS FAILED TO PROVIDE A PERMANENT SOLUTION AND THE WARNING LIGHT CONTINUED TO ILLUMINATE FOR THE REDUCED ENGINE POWER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 188,000.

ANTILOCK BRAKES BEGAN TO APPLY THEMSELVES IN RIGHT HAND TURNS GOING UP AND DOWN HILL AT SPEEDS UP TO 45 MPH. ALMOST CAUSES ME TO LOOSE CONTROL OF VEHICLE. HAD TO TAKE TO HURRICANE CHEVROLET SEVERAL TIMES TO GET FIXED COST ALMOST $4000

BOTH DRIVER AND PASSENGER SIDE AIRBAGS DEPLOYED WITHOUT ANY ACCIDENT OR IMPACT. THE AIRBAGS DEPLOYED WHILE THE CAR WAS PARKED AND WHEN THE IGNITION KEY WAS TURNED.

WHILE TRAVELING TO WORK MY VEHICLES CHECK ENGINE LIGHT CAME ON AND THE REDUCED POWER WARNING CAME ON AT WHICH TIME I HAD COMPLETE LOSS OF ACCELERATION, COMPLETE LOSS OF BRAKING, AND COMPLETE LOSS OF STEERING POWER. I THEN HAD TO COAST TO A STOP AND ATTEMPTED TO RESTART THE VEHICLE 6 TIMES BEFORE I WAS ABLE TO GET THE REDUCED POWER WARNING TO GO OFF AND WAS ABLE TO DRIVE ALTHOUGH THE CHECK ENGINE LIGHT STAYED ON. THIS IS THE 2ND TIME THIS HAS HAPPENED TO ME IN 2 DAYS WITH THE LOSS OF POWER. I HAVE HAD THE REDUCED POWER WARNING ON NUMEROUS OCCASIONS YEARS PAST BUT NEVER HAVE I LOST TOTAL / ABSOLUTE POWER TO CONTROL THE VEHICLE, THIS IS A TOTAL DEATH TRAP FOR ANYONE WHO HAS HAD THIS EXPERIENCE, ESPECIALLY ON THE FREEWAY OR HIGHWAYS AT HIGH SPEEDS. I HAVE READ NUMEROUS ACCOUNTS OF THIS SAME ISSUE AFFECTING OTHER GMC OWNERS AND HAVE SEEN NO RESOLUTIONS OR ANY RECALLS FROM GMC. I HAVE ALREADY REPLACED THE THROTTLE HOUSING AND HARNESS COMPONENTS, ACCELERATION PEDAL SENSOR AND YET THE ISSUE CONTINUES, SOMEONE IS GOING TO ( DIE ) BECAUSE OF GMC'S LACK OF CONCERN AND RESPONSIBILITY TO OWNERS OF THEIR PRODUCTS. I WILL NEVER EVER OWN ANOTHER GMC ASSOCIATED PRODUCT.

THERE IS AN ERROR MESSAGE THAT DISPLAYS ON THE DASH FOR MYSELF AND THOUSANDS OF OTHERS WHO OWN GMC/CHEVY TRUCKS WITH THESE MOTORS. THEY HAVE A DEFECTIVE THROTTLE POSITION SENSOR WITH THE TRUCK WHERE IT SAYS "REDUCED ENGINE POWER". I'VE FOUND 2 TECHNICAL SERVICE BULLETINS THAT SOMEWHAT ADDRESS THE ISSUE, BUT MANY PEOPLE TAKE THEIR TRUCKS TO MECHANICS AND DEALERSHIPS TO GET THE ISSUE FIXED AND SPEND THOUSANDS OF DOLLARS IN REPAIRS AND TROUBLESHOOTING TO GET THE ISSUE RESOLVED, TO NO AVAIL. THE 2 TECHNICAL SERVICE BULLETINS THAT I FOUND WERE #PIP3089B (DATED 10/31/2006) AND #PIP3042A (DATED 8/30/2004). I'VE SEEN ON MANY MANY FORUM POSTS ABOUT THIS ISSUE AND POSSIBLE FIXES, WHICH WHEN I READ DEEPER INTO THEM, SEEM TO NOT BE TRUE FIXES.

I KEEP HAVING THE DISPLAY SAY "REDUCED ENGINE POWER". I'LL BE DRIVING ON THE HIGHWAY, DOING 65 IN RUSH HOUR TRAFFIC, WHEN ALL OF THE SUDDEN THE ACCELERATOR NO LONGER ACCELERATES AND IT DISPLAYS "REDUCED ENGINE POWER" ON THE GAUGE CLUSTER DISPLAY. FROM WHAT I'VE SEEN ONLINE IT APPEARS TO BE AN ISSUE WITH THE THROTTLE POSITION SENSOR ON THOUSANDS OF OTHER SIMILAR VEHICLES WITH THE SAME ENGINE, CHEVY SUBURBAN'S, SILVERADO'S, TAHOE'S, ETC. I REPLACED THE THROTTLE POSITION SENSOR AND THE HARNESS (BECAUSE I HEARD THE HARNESS MIGHT ALSO BE AN ISSUE) AND I AM STILL HAVING THE SAME PROBLEM WITH MY TRUCK. IT HAS DONE IT OVER A DOZEN TIMES ON ONE TRIP BACK FROM WORK (80 MILES FOR ME). I HAVE TO PULL OVER TO THE SIDE OF THE ROAD (IF POSSIBLE) AND TURN OFF THE TRUCK, THEN WAIT A SHORT PERIOD OF TIME, THEN TURN THE TRUCK BACK ON. THIS USUALLY FIXES THE ISSUE, BUT IT DID NOT HELP ME WHEN IT HAPPENED TO ME IN THE TUNNEL AND I WAS GOING 5 MPH (TOP SPEED DURING THE "REDUCED ENGINE POWER" MODE, ONCE YOUR DRIFTING STOPS (BECAUSE YOU DRIFT, IT DOESN'T ENGAGE THE BRAKES). I WAS EXTREMELY WORRIED THAT I WOULDN'T MAKE IT OUT OF THE TUNNEL WITHOUT GET REAR ENDED, AND ONCE I MADE IT OUT, I WAS JUST OUTSIDE OF THE TUNNEL AWAITING ROADSIDE ASSISTANCE, IT WAS VERY FRIGHTENING, WITH MY DAUGHTER IN THE CAR.

IWAS DRIVING AT LOW SPEED WENT TO STOP AT STOP SIGN WHEN BRAKE PEDDLE WENT TO FLOOR.I CRASHED INTO STOP SIGN TO STOP . TRUCK WAS TOWED TO DEALER. I WAS TOLD TO MAJOR BRAKE LINE BURST. TRUCK IS NOW AT DEALER BEING FIXED. AT A PRICE OF 2800.00. SOMETHING HAS TO BE DONE. THIS CAN'T GO ON ANY LONGER.

WHILE SITTING IDLE MY VEHICLE SUDDENLY WENT INTO REDUCED ENGINE POWER MODE. I WAS ABLE TO GET OVER AND PULL OFF THE ROAD AND SHUT OFF THE CAR. 5 MINUTES LATER THE CAR STARTED LIKE THERE WAS NO PROBLEM. OVER THE NEXT FEW DAYS THE REP WARNING WOULD SHOW UP AND MY CAR WOULD SUDDENLY LOSE POWER. I WAS CROSSING THE ROAD DURING ONE INCIDENT. HOWEVER, WHEN I WOULD SHUT OFF THE CAR AND RESTART THE CHECK ENGINE LIGHT WOULD GO AWAY AS WOULD THE REP WARNING. AFTER A QUICK REVIEW ONLINE IT IS EASY TO FIND HUNDREDS OF PEOPLE WHO HAVE A SIMILAR ISSUE. GM WILL ONLY DIAGNOSE AND IF THE LIGHT IS OFF WHEN YOU GET THERE THERE IS NOTHING FOR THEM TO DO EXCEPT TAKE YOUR MONEY AND SAY GOOD LUCK.

VEHICLE HAS BEEN SERVICED SEVERAL TIMES SINCE FIRST OCCURRENCE IN SEPTEMBER 2014. "REDUCED ENGINE POWER" AND SERVICE ENGINE SOON SIGNALS APPEAR ON VEHICLE PANEL CAUSING ENGINE POWER TO BE REDUCED IN A MATTER OF SECONDS. HAS HAPPENED TO ME GOING 10MPH, 55MPH, AND 70MPH ON HIGHWAY, CAUSING A NEAR REAR COLLISION BECAUSE I LOST POWER SO QUICKLY. I HAVE HAD IT SERVICED 6 OR 7 TIMES SINCE SEPTEMBER 2014 AND THIS ISSUE IS NOT GETTING RESOLVED. THROTTLE BODY SENSOR REPLACED TWICE, THROTTLE BODY HARNESS REPLACED, ALL WIRES, AND SENSORS HAVE BEEN CLEANED AND THOROUGHLY INSPECTED. REDUCED ENGINE POWER OCCURS WEEKLY EVEN AFTER BEING SERVICED. *TR