2004 GMC SIERRA Electrical System Problems

RUSTED OUT/ CORRODED BRAKE LINES BURST WHILE STOPPING FOR A DEER RUNNING OUT ON THE ROAD. WAS WARNED OF THIS PROBLEM UPON PURCHASE OF THE VEHICLE IN 2010 AND PERSONALLY COATED ALL BRAKE LINES B4 WINTER EVERY YEAR...NEVER SAW WORSE LINES! I OWN CLASSIC CARS THAT ARE TWICE AS OLD WITH SHINEY ORIGINAL BRAKE LINES. THE FUEL LINES ALSO ROTTED OUT SPILLING FUEL OVER THE TOP OF THE FUEL TANK AND ON THE GROUND WHILE FILLING UP. ALL FUEL LINES AND FUEL PUMP CONNECTIONS WERE SEVERELY ROTTED. WORST I HAVE SEEN. DASH CONSISTENTLY CHANGES LANGUAGES RENDERING ODOMETER NON FUNCTIONAL. SPEEDOMETER IS INACCURATE SOME TIMES NOT EVEN WORKING ESPECIALLY ON COLD DAYS. HMMMM ROTTED BRAKES+NO SPEEDOMETER+LEAKY FUEL LINES=CRASH,BANG BOOM!..AND I HAVE A CAR SEAT IN MY VEHICLE! LUCKLY I PERFORM PREVENTATIVE MAINTENANCE AND DRIVE SAFELY. STILL WONDER HOW THESE ISSUES GOT SWEPT UNDER THE RUG.

THE HEATING AND AC CONTROLS WERE REPLACED 2 TIMES IN 2007.AND ARE STILL NOT WORKING PROPERLY TODAY I WAS DRIVING HOME WITH THE AC ON BECAUSE IT'S 99 DEGREES IN LOS ANGELES COUNTY AND LIKE IT HAS BEEN DOING FOR YEARS IT STARTED BLOWING HOT AIR ON ITS OWN. I HAVE SEE OTHER GM VEHICLES WITH THE SAME ISSUE. SO I BELIEVE GM IS RESPONSIBLE FOR CORRECTING THIS ISSUE. *TR

IGNITION WILL NOT TURN OVER. BATTERY IS FINE, EVERYTHING WORKS EXCEPT TURNING OVER. WHEN YOU TURN THE KEY NOTHING HAPPENS EVERYTHING GOES DEAD. I HAVE A VIDEO. *JS

TL* THE CONTACT OWNS A 2004 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS BLE TO BE RESTARTED AFTER THE CONTACT SHIFTED INTO NEUTRAL. THE FAILURE WAS RECURRING OVER A PERIOD OF TWO YEARS. THE VEHICLE WAS TAKEN TO THE DEALER WHO COULD NOT DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 110,000.

THE SPEEDOMETER,OIL PRESSURE GAUGE, ALT METER, FUEL GAUGE HAVE ALL FAILED OVER THE LAST SEVERAL YEARS. NONE OF THEM READ CORRECTLY. *TR

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. THE CONTACT STATED THAT THE SPEEDOMETER WOULD EITHER DISPLAY AN INACCURATE SPEED READING OR BECOME COMPLETELY INOPERABLE. THE CONTACT INDICATED THAT THE DEFECT WAS DIAGNOSED BY THE DEALER AND THE CONTACT WAS INFORMED THAT A NEW INSTRUMENT PANEL CLUSTER NEEDED TO BE INSTALLED TO REMEDY THE DEFECT. NO REPAIRS WERE PERFORMED ON THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 83000.

TL* THE CONTACT OWNS A 2004 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, ALL OF THE INSTRUMENT PANEL LIGHTS FAILED. THE CONTACT MENTIONED THAT THE FAILURE WOULD RECUR INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE ENTIRE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 60,000 AND THE CURRENT MILEAGE WAS 84,000. *TR

I HAVE A 2004 GMC SIERRA THAT HAS AN ELECTRICAL ISSUE WITH THE ABS OR BRAKE SYSTEM. THE BRAKE LIGHT, ABS LIGHT AND SERVICE BRAKE SYSTEM LIGHT GOES OFF AT RANDOM TIMES. MIGHT HAVE SOMETHING TO DO WITH THE AIR CONDITIONING BECAUSE THE A/C DRAWS POWER FROM THE BATTERY AND I CAN SEE THAT A CERTAIN LEVEL THE INDICATORS GO OFF. MOST OF THE TIME THE LIGHTS CHIME AND BLINK WHEN I APPLY THE BRAKE BUT IT ALSO HAS HAPPENED WHEN JUST TURNED THE TRUCK ON. I'VE REPLACED THE ROTORS AND PADS TO STILL HAVE THE PROBLEM. I'M NOT SURE IF IT'S A GROUND OR SENSOR THAT IS FAILING. I'VE FOUND TSB FOR REGROUNDING, FAILING SENSORS, OR ECBM. STILL HAVEN'T FOUND THE CORRECT DIAGNOSIS. I JUST HOPE THE ABS FUNCTIONS WHEN I NEED IT. *TR

TL* THE CONTACT OWNS A 2004 GMC SIERRA. THE CONTACT STATED THAT THE INSTRUMENT PANEL FAILED AND ALL OF THE GAUGES STOPPED WORKING. THE DEALER INFORMED THE CONTACT THAT THE ENTIRE INSTRUMENT PANEL NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE AND CURRENT MILEAGES WERE 83,000. *TR

IN MOST 2002-2006 CHEVY AND GMC TRUCKS THE CLUSTER WILL START GOING OUT GM HAD A RECALL ON THE CLUSTER BUT NEVER SENT OUT A REPORT ON IT. *TR

INSTRUMENT PANEL CLUSTER FAILURES. *TR

TL*THE CONTACT OWNS A 2004 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 30 MPH, THE CONTACT APPLIED PRESSURE TO THE BRAKE PEDAL AND NOTICED INCREASED STOPPING DISTANCE. THE BRAKE PEDAL DEPRESSED VERY EASILY WHEN THE PRESSURE WAS APPLIED. THE FAILURE OCCURRED WHENEVER THE CONTACT APPLIED PRESSURE TO THE BRAKE PEDAL SO HE REPLACED THE BRAKES HIMSELF. THE FAILURE CONTINUED SO HE NOTIFIED AN AUTHORIZED DEALER AND WAS INFORMED HIS VEHICLE WAS NOT INCLUDED IN THE RECALLS ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBERS 05V043000, SERVICE BRAKES, HYDRAULIC OR 04V045000, SERVICE BRAKES, HYDRAULIC. THE VEHICLE WAS NOT REPAIRED. HE ALSO STATED THAT HIS SPEEDOMETER AND OIL GAUGE ON THE INSTRUMENT PANEL DISPLAYED INCORRECT IMPROPER READINGS. THE FAILURE MILEAGE WAS APPROXIMATELY 35,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 48,000.

2004 GMC SIERRA 2500HD, INSTRUMENT PANEL STARTED SHOWING THE RPM'S TO BE IN THE RED ZONE, THEN THE SPEEDOMETER WOULD QUITE WORKING, THEN THE GAS GAGE WOULD QUITE WORKING, THEN THE TEMPERATURE GAUGES QUITE WORKING, TO BEGIN WITH IT WOULD HAPPEN PERIODICALLY TILL IT QUITE WORKING COMPLETELY. TOOK IT TO REPAIR SHOP AND HAD FIXED. I KNOW TWO OTHER PEOPLE THAT THIS HAS HAPPENED TO ALSO WITH THE SAME VEHICLES ONLY A YEAR OR TWO APART. ALL OF WHICH HAPPENED BETWEEN 80,000 AND 110,000 MILES. FEEL IT IS A SAFETY CONCERN, WHEN I WAS DOING 75MPH ON THE HIGHWAY AND SAW MY RPM'S PEGGED IN THE RED AND WAS IN A HURRY TO PULL OFF TO THE SIDE OF THE ROAD TO PREVENT MY ENGINE FROM BLOWING UP. SAME WITH THE TEMP GAUGES. *TR

GM MAILED A NOTICE THAT THE INSTRUMENT PANEL IN 2004 SIEERA TRUCKS IS SUBJECT TO FAILURE INCLUDING FUEL GAUGE, SPEEDOMETER, ETC. THESE CAN BE VERY SERIOUS SAFETY CONCERNS DEPENDING ON DRIVING CONDITIONS. GM HAS OFFER TO EXTEND THE WARRANTY TO 70,000 MILES OR 7 YEARS. THIS TOTALLY UNACCEPTABLE FROM A SAFETY STANDPOINT. *TR

THE SPEEDOMETER ON MY 2004 GMC PU FAILED ON A RECENT TRIP FROM ME TO FL. AS I PULLED ONTO THE MA TRPK, I NOTICED THAT THE SPEEDOMETER WAS READING 85 MPH. AT THE TIME, I WAS PROBABLY GOING 60 - 65. IT THEN READ HIGHER AND HIGHER ON THE TRIP AND THE NEEDLE WAS BURIED AT TIMES. WHEN I STOPPED, THE NEEDLE WOULD DROP A LITTLE. A FEW DAYS AFTER THE TRIP WAS CONCLUDED, THE NEEDLE RETURNED TO ZERO WHEN STOPPED AND CURRENTLY RECORDS ACCURATELY. OBVIOUSLY, IT IS A SAFETY HAZARD WHEN YOUR SPEEDOMETER FAILS, ESPECIALLY IN THE MIDDLE OF A LONG TRIP. I RECENTLY ASKED A LOCAL DEALER IF THERE HAS BEEN A PROBLEM, AND WAS TOLD THAT THEY HAVE HAD TO REPLACE "LOTS" OF SPEEDOMETERS ($350). I THEN ASKED IF THE REPLACEMENTS FAILED AND WAS TOLD "NOT YET". GM HAS NOT OFFERED TO FIX THIS PROBLEM (I...

2004 SIERRA CAUGHT ON FIRE DUE TO A MALFUNCTION IN THE TRUCK. *TS *JB

WHILE DRIVING OUR 2004 GMC SIERRA, THE SPEEDOMETER, KEEP ACTING UP AND THEN IT JUST QUIT. BEFORE THE MANUFACTURES WARRANTY WENT OUT. SO I TOOK IT TO THE LOCAL DEALER AND SAID IT WOULD COST ME ABOUT 1000.00 DOLLARS .I THINK THIS PROBLEM SHOULD BE FIXED BY THE MANUFACTURE. *NM

ON NOVEMBER 29 WHILE DRIVING MY 2004 GMC SIERRA PICKUP MY SPEEDOMETER MALFUNCTIONED. THIS CONTINUED TO HAPPEN OFF AND ON FOR 2 OR 3 WEEKS THEN STOPPED WORKING. AFTER CHECKING WITH THE DEALERSHIP I WAS ADVISED THIS WOULD COST 500 DOLLARS TO REPAIR. THE LOCAL SHERIFF'S DEPARTMENT HAS 10 2003 CHEVY TAHOE'S THAT HAVE EXPERIENCED THE SAME PROBLEM. I WOULD LIKE SOME RESEARCH ON THIS DEVICE MALFUNCTION. THANK YOU. *JB