2005 GMC SIERRA 1500 Electrical System Problems

Instrument panel stops working from time to time. My Guages go crazy. My rpm and speedometer mess up and can't tell how fast I'm going. This has been going on for a few years now. My airbag sensor light is on and was In a light wreck few months ago. Hit pretty hard on front end of truck and yet neither one of my airbags deployed.

STARTED MY TRUCK AND THE FAILURE ELECTRICAL SYSTEM CAME ACROSS I PUSHED IN THE BOTTON THAT CHANGES IT AND CAME BACK ON THEN IT SAID TIGHTEN FUEL CAP WASHER FLUID LOW I HIT THE BUTTON AGAIN IT WENT OF BUT BATTERY LIGHT STAYED ON AND GAUGE READ ABOUT 10 VOLTS.MY TRUCK RAN FINE AND STARTED WHEN I GOT TO MY FIRST THEN AT THE SECOND STOP IT SAID THE SAME , I PUT IN REVERSE BACKED OUT PUT IT DRIVE AND THE CLUSTER QUICK WORKING THE AC QUIT YOU COULD ROLL THE WINDOWS DOWN NOR DID THE LOCKS WORK AND IT DID NOT ANY POWER WHEN PUSHED DOWN THE GAS PED2 TO COME UP A HILL IT FELT LIKE IT SHIFTED WHEN YOU LET OFF THE PEDAL YOU COULD FEEL JERK, GO HOME TURNED IT AND WOULD NOT START OR MAKE ANY SOUND NOT EVEN THE CLICKING ON THE STARTER, SO I LEFT HOME AND CAME BACK ABOUT 4 HOURS LATER AND IT STARTED BUT THE VOLT READ ABOUT 10 VOLTS. I HAD THE BATTERY TESTED AND IT TEST GOOD. THIS WAS ON SEPTEMBER 9, 2020 I HAVE PUT THE BATTERY BACK IN YET.

Mileage: 18,000

THE PASSIVE ALARM SYSTEM IS MALFUNCTIONING APROX EVERY 10 CRANKS. WHEN THIS HAPPENS YOU ARE STUCK FOR AT LEAST A HOUR BEFORE IT WILL START. DEALERSHIP CAN NOT FIND THE PROBLEM AND A COMPLAINT WAS MADE TO GMC COMPLAINT DEPARTMENT I HAVE CHANGED NUMEROUS PARTS M SWITCHES AND BOXES ,

Mileage: 213,000

CHARGING SYSTEM FAILURE MESSAGE KEEPS COMING UP ON VEHICLE...REPLACED ALTERNATOR THREE WEEKS AGO AND IT SEEMS TO SOLVE THE PROBLEM...FOR A WHILE AT LEAST...TWO NIGHTS AGO TRUCK DIED...REPLACED BATTERY WITH A BRAND NEW ONE YESTERDAY AND TRUCK IS STILL SITTING ON THE SIDE OF THE ROAD AS BATTERY IS NOT GETTING CHARGE FROM ALTERNATOR.

Mileage: 250,000

TL* THE CONTACT OWNS A 2005 GMC SIERRA 1500. THE CONTACT NOTICED SEVERE RUST TO THE SUBFRAME OF THE VEHICLE. THE CONTACT STATED THAT THE REAR SUSPENSION, FRONT SUSPENSION, AND STARTER SUPPORT SHOWED EXCESSIVE RUST. ADDITIONALLY, THE SHOCK TOWER, SUPPORTS, TRANSMISSION BOLTS, FOUR WHEEL DRIVE ACTUATOR, AND HARDWARE ALSO SHOWED EXCESSIVE RUST. THE CONTACT ALSO STATED THAT THE HORN ALSO FAILED TO OPERATE INTERMITTENTLY. BECKLEY AUTO MALL (3934 ROBERT C BYRD DR, BECKLEY, WV 25801, (304) 252-3300) STATED THAT THERE WAS NO RECALL ASSOCIATED WITH THE VIN. THE VEHICLE WAS REPAIRED FOR SEVERAL FAILURES; HOWEVER, THE RUST ISSUE WAS NOT ADDRESSED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE APPROXIMATE FAILURE MILEAGE WAS 96,000. *BF UPDATED 9/18/18*JB

Mileage: 96,000

THE GEAR SHIFT INDICATOR LIGHT HAS GONE FROM DIM TO NO LIGHT AT ALL SO YOU CAN NOT SEE WHAT GEAR YOU ARE IN. THIS HAPPENS ANYTIME THE VEHICLE IS RUNNING.

Mileage: 85,506

TL* THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHEN THE VEHICLE WAS PLACED INTO GEAR, THE CONTACT NOTICED THAT THE GEAR SELECTOR WAS BARELY ILLUMINATED. THE FAILURE PROGRESSIVELY WORSENED AND THE CONTACT HAD TO MEMORIZE IN WHAT GEAR THE VEHICLE WAS PLACED. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 138,000. UPDATED 06/15/16*LJ THE CONSUMER STATED THE LED SHIFT INDICATOR DISPLAY HAD FADED, AND HE WAS UNABLE TO DETERMINE WHAT GEAR THE VEHICLE WAS IN. UPDATED 06/22/16.*JB

Mileage: 138,000

THE RUNNING LIGHT SOCKETS BURNED OUT. I CAN SEND YOU THE BURNED OUT SOCKET BUT NEED AN ADDRESS.

Mileage: 105,000

MY SPEEDOMETER FAILS INTERMITTENTLY. I WAS DRIVING TO FLORIDA FROM VIRGINIA AND MY SPEEDOMETER FAILED ON INTERSTATE 95. I WAS SUMMARILY ARRESTED IN SUMMERTON, GEORGIA FOR SPEEDING. IT IS DANGEROUS WHEN YOU DON'T KNOW YOUR SPEED. *TR

Mileage: 155,540

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE AT A STOP SIGN, ALL THE LIGHTS ON THE INSTRUMENT PANEL BEGAN FLASHING INTERMITTENTLY. ALSO, THE HEADLIGHTS TURNED ON AND OFF INDEPENDENTLY, THE SPEEDOMETER AND TEMPERATURE GAUGES SHOWED INACCURATE READINGS. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE IT WAS DIAGNOSED WITH ELECTRICAL FAILURES ON THE COMPUTER SYSTEM. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 70,000.

Mileage: 70,000

IGNITION SWITCH IS STICKING IN RUN POSITION. I HAVE TO TURN THE SWITCH BACK AFTER CRANKING TO TURN OFF THE ABS /PARKING BRAKE LIGHT. TRIED A NEW SWITCH DIDN'T SOLVE THE PROBLEM. IS THIS PART OF THE RECALL PROBLEM. *TR

NOVEMBER 5, 2014: TURN KEY AND SYMPTOM OF A DEAD BATTERY. STARTER CLICKS ONCE. NO LIGHTS WILL WORK AT ALL. TOOK BATTERY OUT, CHARGED IT OVERNIGHT, AND HAD IT TESTED. TEST REVEALS BATTERY IS GOOD (SHOULD START VEHICLE) BUT WEAK (NEEDS A CHARGE). PUT BATTERY BACK IN, CONNECTED IT, PUT KEY IN, TURNED IT, AND VEHICLE STARTED EASILY. ............. NOV. 15, 2014: TURN KEY BUT, ELECTRICAL SYSTEM IS COMPLETELY DEAD. THEN, TAKE KEY OUT FOR FIVE MINUTES, PUT BACK IN, AND STARTS RIGHT UP LIKE NOTHING WRONG. *TR

Mileage: 109,000

THE DRIVE INDICATOR ON MY DASH BOARD CLUSTER DOES NOT LIGHT UP AND SHOW WHAT GEAR IM IN. CALLED BEFORE BECAUSE THERE IS A RECALL FOR THIS YEAR AND MODEL OF TRUCK BUT MY VIN WAS NOT INCLUDED IN RECALL BUT I HAVE THE SAME ISSUE. *TR

THE REAR SPEAKERS ON MY 2005 GMC SIERRA 1500 CREW CAB QUIT WORKING AND HAVEN'T CAME BACK ON. I HAVE BEEN TO DIFFERENT FORUMS AND THIS SEEMS TO BE A VERY COMMON OCCURRENCE. *TR

Mileage: 87,000

SPEEDOMETER SHOWS INCORRECT SPEED BY APROX. 20 MPH LESS THAN THE ACTUAL SPEED AT TIMES. *TR

Mileage: 107,000

SPEEDOMETER READING ERRATICALLY. 20MPH WHEN PARKED, SOMETIMES 40 WHEN PARKED. UNABLE TO DETERMINE ACTUAL SPEED. APPARENTLY THIS IS AFFECTING THOUSANDS OF GM VEHICLES AND GM KNOWS ABOUT THIS ISSUE BUT WON'T DO ANYTHING ABOUT IT. MAYBE A CLASS ACTION LAWSUIT IS IN ORDER? A SILENT RECALL IS IN PLACE IF YOU HAVE LESS THAN 80K MILES, IF YOUR VEHICLE FALLS WITHIN THE RANGE OF VIN #'S, IF IT HAPPENED ON A DAY THAT DOESN'T END IN Y. GM NEEDS TO BE RESPONSIBLE AND STAND BEHIND THEIR PRODUCT. ESPECIALLY IF THEY KNOW ITS A SAFETY ISSUE. *TR

Mileage: 101,562

I BOUGHT MY GMC USED IN 2008 AND I HAD NO PROBLEMS UNTIL A JUNE OF 2012 WHEN MY SPEEDOMETER STARTED TO GET MY SPEED TOTALLY WRONG. AT TIMES IT WOULD SAY I WAS DRIVING OVER 120 MPH OR WHEN IN IDLE IT WOULD EVEN SAY THE SAME THING. THE SPEEDOMETER PICKS A DIFFERENT SPEED DAILY. JUST A FEW WEEKS AGO IN JULY OF 2012 MY GAS GAUGE WENT COMPLETELY OUT SO I HAVE NO IDEA HOW MUCH GAS IT LEFT IN MY TRUCK. I HAVE TO GUESS BY MILEAGE NOW IN HOPES THAT MY ELECTRICAL DOESN'T GO COMPLETELY OUT NOW. *TR

TL* THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 65 MPH, THE CONTACT NOTICED THAT THE SPEEDOMETER WAS NOT PROVIDING A READING. THE DEALER WAS MADE AWARE OF THE FAILURE AND THE TECHNICIAN STATED THAT THE INSTRUMENT CLUSTER WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 50,200.

Mileage: 50,200

GAUGE CLUSTER FOR MY 2005 GMC SIERRA IS NOT WORKING PROPERLY. SPEEDOMETER, ENGINE COOLANT TEMPERATURE & TRANSMISSION TEMPERATURE GAUGES STICK, FLUTTER, OR BECOME INOPERATIVE CAUSING INACCURATE READINGS. *TR

Mileage: 75,000

TL* THE CONTACT OWNS A 2005 GMC SIERRA 1500. THE CONTACT STATED THAT THE INSTRUMENTAL PANEL FAILED AND THE GAUGES WERE NOT READING ACCURATELY. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC AND THEY ADVISED THE CONTACT THAT THE INSTRUMENTAL CLUSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND THEY ADVISED HIM THAT HE WAS NOT INCLUDED IN ANY RECALLS. THE FAILURE MILEAGE WAS APPROXIMATELY 80,000.

Mileage: 80,000

ODI #10403836, 2005 GMC 1500 SIERRA, VIN#, COMPLETE FAILURE OF DASH INSTRUMENTS, STARTED WITH THE OIL GAUGE, THEN THE RPM INDICATOR, NOW THE SPEEDOMETER, RUNS UP TO 120 MPH SEVERAL TIMES A WEEK ONLY GOING AT UNKNOWN, UNSAFE SPEED WHICH I CAN ONLY ASSUME TO BE THE LEGAL LIMIT OF 70 MPH, THIS IS A SAFETY ISSUE AS WELL AS A MONETARY LOSS FOR ACCIDENTS AND OR SPEEDING TICKETS. IN ADDITION THE INSTRUMENT LIGHT FOR THE TRANSMISSION DOES NOT WORK AND YOU CAN NOT TELL WHAT GEAR YOU ARE IN ANOTHER POTENTIALLY DANGEROUS SITUATION, ON TOP OF THAT THE CHECK ENGINE LIGHT COMES ON REPEATEDLY CAUSING MINOR REPAIR COSTS EACH TIME IT OCCURS. THERE HAS TO BE CUSTOMER RECOURSE, WHEN THIS ORIGINALLY STARTED THE DEALERSHIP STATED THAT NOT TO WORRY AS SOON A RECALL WOULD BE ISSUED AS IT HAD FOR THE PRIOR YEARS, AS YET NO OFFICIAL RECALL OTHER THAN THE TRANSMISSION PANEL LIGHT FAILURE WHICH CURRENTLY COVERS 7,194 VEHICLES BUT GMC STATES THAT MINE IS NOT COVERED? ONE WONDERS WHY WHEN THEY SAY QUALITY IT IS A JAPANESE AUTO! IF INDEED ALL OF THE CONSUMERS WITH A COMPLAINT FOR THIS PARTICULAR PROBLEM WOULD GATHER UNDER A LEGAL ACTION, I AM SURE THAT GMC WOULD HAVE TO COMPLY AND REPAIR AND SOME POINT IN TIME. I HAVE OWNED GMC AUTOS AND TRUCKS ALL OF MY LIFE, I CURRENTLY HAVE A 77 CHEV. PICK UP THE INSTRUMENTAL PANEL STILL WORKS, I HAVE A 1995 GMC SIERRA THE INSTRUMENT PANEL STILL WORKS, I HAVE LEFT INSTRUCTIONS WITH MY FAMILY THAT IF I AM IN A WRECK DUE TO EXCESSIVE SPEED AND OR MISTAKENLY PLACE THE VEHICLE IN THE WRONG GEAR AND BACK OVER A CLIFF THAT THEY ARE TO SUE GMC. MY NEXT ACTION IS A CLASS ACTION LAW SUIT. *TR

Mileage: 100,000

TRUCK IS NOW 6 YEARS OLD, JUST OVER 70,000 MILES. 3 TO 4 YEARS AGO (MAYBE MORE) THE #5 SPEED ON THE AIR SYSTEM BLOWER STOPPED WORKING. PERHAPS LAST SUMMER OR FALL, I CHECKED THE FUSES: ALL GOOD. I FINALLY FOUND THE WIRING HARNESS PLUG TO THE FAN AND FOUND THE #5 LINE HAD MELTED INSULATION AND THE SURFACE OF THE CONTACT PRONGS BLACKENED. I SANDED THEM AND REINSTALLED THE PLUG. ALL SPEEDS WORKED, FOR A WHILE, BUT SOON BECAME INTERMITTENT. THEN ALL SPEEDS STOPPED WORKING TOTALLY. AT LAST, I REMEMBERED THAT I STILL HAD AN EXTENDED WARRANTY WITH MASTERTECH, CHECKED IT AND WAS ABLE TO GET THE HARNESS REPLACED UNDER THE WARRANTY. THE WORKMAN WHO DID THE REPAIR SAID THAT THIS ITEM WAS A COMMON PROBLEM WITH THE 2005 SIERRA. WHILE I DO NOW HAVE A WORKING FAN CONTROL, I AM AFRAID TO USE THE #5 FAN SPEED. *TR

SPEEDOMETER DOESN'T WORK CORRECTLY, READING 60 MPH WHEN WE WERE TRAVELING APPROX 40. ALSO BULBS BURNED OUT IN IT MAKING IT UNREADABLE AT NIGHT. BULBS ARE NON-REPLACEABLE IN THIS INSTRUMENT CLUSTER, SO YOU NEED TO REPLACE ENTIRE CLUSTER TO FIX BULB ISSUE. POOR DESIGN, EXPENSIVE, AND ANNOYING PROBLEM AT ONLY 99,000 MILES. *TR

Mileage: 90,000

SPEEDOMETER FLUXUATE SPORADICALLY, WRONG SPEED SHOWING. TOOK TO DEALER, DIAGNOSIS AS COMPONENT FAILURE. GMC ACKNOWLEDGE PROBLEM, BUT REFUSE TO RECALL. DEALER WILL REPLACE ODOMETER IF LESS THAN 80,000 MILES. *TR

Mileage: 98,000

THE SPEEDOMETER HAS STARTED ACTING ERRATICALLY ON MY 2005 GMC SIERRA WITH 70,000 MILES. IT WILL READ 20 TO 30 MPH LESS THAN ACTUAL SPEED. THIS HAPPENS ERRATICALLY SO I HAVE TO MONITOR THE TACH TO MAKE SURE I AM CLOSE TO THE POSTED SPEED, MAYBE. *TR

Mileage: 70,000

SPEEDOMETER FAILED AT 68,000 MILES. IT STICKS ALL THE WAY PAST 120 MPH. CAN'T SEE HOW FAST I'M GOING, DEALER REFUSES TO FIX IT. TRIED THREE DEALERS. *TR

Mileage: 70,000

MY 2005 GMC SIERRA 1500 4X4 PICKUP'S SPEEDOMETER WILL NOT GO BELOW 45 MPH AND PEGS OUT AT 120 MPH. THIS HAPPENED SUDDENLY, IT HAS BEEN THIS WAY FOR OVER 1 WEEK. I HAVE TRIED TURNING ON AND OFF, LEAVING OFF AND RESTART. DEALERSHIP SAYS NO RECALL; NOT THEIR RESPOSIBILITY.. ANOTHER SHOP WILL CHARGE OVER $600.00 TO REPAIR IN WHICH I DO NOT HAVE. I READ ON LINE THAT THERE ARE THOUSANDS OF GMC'S WITH THIS ISSUE. WHERE IS HELP FOR THE CONSUMER???? *TR

Mileage: 65,659

SPEEDOMETER FAILURE. VERY DANGEROUS - WHILE TRYING TO RESUME SPEED ON AN INTERSTATE I NEARLY CRASHED INTO THE INTERSTATE BARRIER/WALL ON A CURVE THE OTHER NIGHT BECAUSE THE SPEEDOMETER READ 70. I THEN SLOWED TO "STAY WITH THE FLOW" AND SPEEDOMETER READ 35 (ASSUMING TRAFFIC WAS DRIVING THE SPEED LIMIT OF 70). NOW IT START OF OK AND THEN BEFORE YOU KNOW IT WILL START TO DROP AND AFTER A STOP WILL STAY AT 0 WHILE DRIVING INTERSTATE SPEEDS, WILL STICK AT 55 WHEN PROBABLY GOING ABOUT 10. IT IS ALL OVER THE PLACE. THE FAILURE IS NOW DAILY AND IS FAR TOO DANGEROUS TO MY FAMILY AND I TO DRIVE. HOPE THIS GETS RECALLED QUICKLY BEFORE IT CAUSES DEATHS. *TR

Mileage: 129,540

SPEEDOMETER DEFAULT , IT WILL NOT INDICATER THE CORRECT SPEED SOMETIMES IT WILL INDICATE 120 MPH, OTHER TIMES IT WILL INDICATE 20-30 MPH , SOMETIMES IT STICKS ON SEVERAL MPH'S SPEEDS WHEN THE VEHICLE IS STOPPED. THE SPEEDOMETER IS ALL OVER THE PLACE, WHEN I KNOW FOR SURE I AM NOT GOING THE SPEED INDICATED ON THE SPEEDOMETER. ONE TIME IT WAS INDICATING 120 MPH THRU A SCHOOL ZONE!!! *TR

Mileage: 61,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHILE DRIVING 30 MPH, HE NOTICED THAT THE SPEEDOMETER DISPLAYED THAT HE WAS DRIVING LESS THAN 20 MPH. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING WHICH INDICATED THAT THERE WAS NOTHING WRONG WITH THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN AND THE CURRENT MILEAGE WAS 51900.

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHILE DRIVING AT 65 MPH, THE CONTACT NOTICED THAT THE ABS LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. AN HOUR LATER, THE CONTACT NOTICED THAT THE VEHICLE DISPLAYED DIFFICULTY STOPPING. AFTER INSPECTING THE VEHICLE, THE CONTACT NOTICED THAT THE DRIVER SIDE TIRE WAS TILTED AND SMOKE AND FLAMES HAD BEGAN RISING FROM BEHIND THE WHEEL. THE CONTACT CALLED THE FIRE DEPARTMENT BUT NO REPORT WAS FILED. THE VEHICLE HAD NOT BEEN INSPECTED AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 49,000. UPDATED 07/26/10. *LJ UPDATED 08/06/10*JB

Mileage: 49,000

SPEEDOMETER STICKS AT LESS SPEED THAN VEHICLE GOING DOES NOT HAPPEN AT ALL TIMES BUT, IS A SAFETY AND VIOLATION FACTOR. *TR

Mileage: 112,000

WIRING HARNESS BETWEEN FAN SWITCH AND FAN MOTOR GET VERY HOT AT THE CONNECTION AND MELTS THE CONNECTION. *TR

Mileage: 55,000

SPEEDOMETER STUCK AT 120 MPH...... *TR

Mileage: 125,000

SPEEDOMETER WORKS OCCASIONALLY, UNKNOWN SPEED TRAVELING. *TR

Mileage: 44,000

WE OWN A 2005 GMC SIERRA AND THE SPEEDOMETER HAS GONE OUT. WAS INFORMED IT IS AN INTERNAL GAUGE CLUSTER THAT HAS GONE OUT AND IT WILL TAKE $400-$600 TO FIX IT. I HAVE RESEARCHED ONLINE AND THIS HAS BEEN A PROBLEM WITH TRUCKS SINCE AT LEAST 2007. THERE SHOULD BE A RECALL ON THIS AND THE CUSTOMERS SHOULD NOT HAVE TO PAY FOR THIS TO BE FIXED. GMC REFUSES TO DO A RECALL AND SAYS THAT THERE IS NOTHING THEY CAN DO. *TR

Mileage: 79,843

MY SPEEDOMETER FAILED IN DEC OF 2009 ON MY GMC SIERRA PICKUP. IN THE COLD IT ALWAYS REGISTERS 0 MPH AND WILL START TO WORK AFTER AN HOUR ON THE ROAD. *TR

Mileage: 55,000

SPEEDOMETER HAS SUDDENLY STOPPED WORKING ON MY 2005 GMC SIERRA 1500. I HAVE LEARNED THERE IS A RECALL FOR MODEL YEARS 2003-2004. SEEMS LIKE THE PROBLEM MAY EXTEND TO FURTHER YEARS. *TR

Mileage: 51,000

THE SPEEDOMETER AND FUEL GAUGE ON MY 2005 GMC SIERRA 1500 CREW CAB ARE ERRATIC AND OCCASIONALLY NON OPERATIVE. SPEEDO READS 120 MPH AT TIMES WHEN THE VEHICLE IS STOPPED. SOMETIMES DOES NOT READ AT ALL, STAYS AT ZERO WHEN DOING FREEWAY SPEEDS. FUEL GAUGE READS EMPTY WHEN 1/4 TANK, THEN AFTER A RESTART WILL SHOW PROPER(?) LEVEL. *TR

Mileage: 55,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500 PICKUP TRUCK. WHILE DRIVING, HE COULD SMELL A BURNING ODOR COMING FROM THE INSIDE OF THE VEHICLE. THE DEALER FOUND THAT THERE WAS A SHORTAGE AND A MELTED HARNESS ASSEMBLY. THE BLOWER RESISTOR AND HARNESS ASSEMBLY WERE REPLACED AT THE OWNER'S EXPENSE. THE MANUFACTURER WAS CONTACTED AND COULD ONLY OFFER A 15,000 MILE EXTENDED WARRANTY. THE CURRENT AND FAILURE MILEAGES WERE UNDER 48,198. UPDATED 02/23/10. *LJ UPDATED 08/12/10*JB

Mileage: 48,198

05 GMC SIERRA SPEEDOMETER ERRATIC AT FIRST,15,000 ML.,NOW AT 62,000 ML. DOESN'T WORK. I WAS GOING 50 AT A STOP SIGN. I HAVE MY OWN BUSINESS AND PULL TRAILERS W/ EQUIPMENT AND THE RIGHT SPEED IS CRITICAL FOR THE TOWING WEIGHTS. THE LAW ENFORCEMENT AGENCIES WILL NEVER TAKE A FAULTY SPEEDOMETER AS A REASON FOR GOING OVER THE SPEED LIMIT. INTERSTATE DRIVING IS AT A MINIMUM BECAUSE GOING WITH THE FLOW WILL MEAN OVER HEATING OF THE SMALL TRAILER TIRES ON THE TILT BED TRAILER. NO ACTION YET IT JUST QUIT TODAY,1-4-2010 , AND I AM FILING THIS COMPLAINT TO ADD TO THE NUMBERS OF OTHERS THAT HAVE ALREADY FILED. *TR

Mileage: 62,000

SPEEDOMETER STICKS AND DOESN'T RETURN TO 0 AND CONTINUES TO RISE EVERY TIME THE VEHICLE ACCELERATES UNTIL THE SPEEDOMETER IS PEGGED OUT AND THEN IT STICKS THERE. *TR

Mileage: 80,958

THE SPEEDOMETER OF MY GMC SIERRA 1500 IS ERRATIC WHEN IT IS WET OUTSIDE. WHEN THE VEHICLE IS PARKED AND THE IGNITION KEY IS IN MY POCKET THE SPEEDOMETER READS ANYWHERE FROM 40 TO 50 MPH. WHILE DRIVING THE SPEEDOMETER INDICATES UP TO 120 MPH. HOW MANY PEOPLE HAVE TO COMPLAIN ABOUT THIS SAFETY CONCERN BEFORE SOMETHING IS DONE. A SEARCH OF YOUR DATABASE INDICATES MANY COMPLAINTS. HELP. *TR

Mileage: 71,236

THE SPEEDOMETER IN MY GMC TRUCK KEEPS ON GETTING STUCK. I HAVE BEEN TOLD BY MANY OTHER GMC AND CHEVROLET OWNERS THAT HAVE HAD THE SAME ISSUE THAT IT IS IN THE BRAIN OF THE VEHICLE. IT HAPPENS ON THE FREEWAY THE MOST. IF I DON'T KNOW HOW FAST I AM GOING I AM I AM CREATING POTENTIAL HAZARD. IF THE SPEED LIMIT IS THE RECOMMENDED SAFE SPEED. I DON'T KNOW IF I AM IN COMPLIANCE. NOT ONLY IS IT A SAFETY ISSUE IT IS ALSO A FINANCIAL RISK IN TERMS OF TICKETS. ALL CHEVROLET AND GMC TRUCK OWNERS I KNOW HAVE HAD THIS PROBLEM. *TR

Mileage: 45,000

THE CONNECTOR THAT PLUGS INTO THE BLOWER MOTOR UNDER THE GLOVE BOX BECAME TOO HOT AND MELTED THE PLASTIC RESULTING IN THE A/C AND HEAT NOT TO WORK (THIS INCLUDES THE WINDSHIELD DEFROSTER). I'VE BEEN LOOKING UP PROBLEMS AND SOLUTIONS AND FOUND THAT THIS IS A RECURRING PROBLEM WITH GMC AND CHEVY TRUCKS YET THERE HAS NOT BEEN ANY RECALL, IN FACT THE DEALERSHIPS HAVE AN EXTREMELY OVERPRICED KIT TO FIX THEIR FAULTY WIRING. ABOUT 66,000 MI. *TR

Mileage: 66,000

GMC SIERRA 2005 SPEEDEMOTER BAD, CANNOT TELL WHAT SPEED I'AM GOING. 37.000 MILES ON TRUCK... *TR

Mileage: 37

SPEEDOMETER NOT WORKING CORRECTLY, ONLY HAVE 48,000 MILE ON VEHICLE ,SOMETIMES IT WORKS FINE OTHER TIMES IT MAY STICK ON 50 OR 60 OR MAY NOT WORK AT ALL. IF IT STICKS ON 50 FOR EXAMPLE WHEN I START MY NEXT TRIP IT STARTS AT THAT POINT,IF I'M GOING 20 MPH IT SAYS I'M GOING 70 MPH,ECT. *TR

Mileage: 40,000

SPEEDOMETER STOPPED WORKING AT 20000 MILES. IT WAS WORKING FINE THEN STARTED TO WORK ONLY OCCASIONALLY AND HAS NOW COMPLETELY STOPPED WORKING. WE HAVE NOT HAD IT REPAIRED AS OF YET. IT IS VERY UNSAFE TO DRIVE NOT KNOWING WHAT SPEED YOU ARE TRAVELING AT, PLUS CAN RESULT IN TRAFFIC VIOLATIONS CAUSING YOUR INSURANCE TO INCREASE. *TR

Mileage: 20,000

AT APPROXIMATELY 66,000 MILES ON MY 2005 GMC SIERRA 1500, THE SPEEDOMETER STARTED READING 70 MPH WHILE THE TRUCK WAS STOPPED, AND ROSE FROM THERE AS IT ACCELERATED. THE CONDITION PERSISTED FOR ABOUT ONE WEEK; EACH TIME THE TRUCK WAS RESTARTED, THE SPEEDOMETER RESET ITSELF TO A LOWER STARTING SPEED, UNTIL IT READ ZERO AGAIN WHEN STOPPED. IT IS BEHAVING NORMALLY NOW, BUT THIS SEEMS TO BE A RECURRING ISSUE WITH THIS VEHICLE, AND GM HAS NOT PROVIDED OTHER OWNERS ANY RELIEF IF THE VEHICLE IS PAST ITS WARRANTY PERIOD. SOMETHING AS BASIC AND NECESSARY TO DRIVING SAFETY AS SPEEDOMETER FUNCTION SHOULD, IN MY OPINION, BE DESIGNED TO LAST THE VEHICLE'S ENTIRE INTENDED LIFESPAN WITHOUT SYSTEMIC FAILURE. *TR

Mileage: 66,000

2005 GMC SIERRA SPEEDOMETER ACTING ERRATIC - VEHICLE IN STOPPED POSITION SAYS GOING 105 KM/H OR 65 MPH ?? INCORRECT READINGS, JUMPY -. *TR

Mileage: 132,000

SPEEDOMETER HAS QUIT WORKING PROPERLY. IT SOMETIMES READS INACCURATELY LOW AND SOMETIMES INACCURATELY HIGH. IT WILL USUALLY GO SEVERAL WEEKS WITHOUT EVER WORKING PROPERLY AND THEN WILL WORK FOR A FEW DAYS. IT SOMETIMES NEVER COMES BACK DOWN AFTER PEAKING AT THE MAXIMUM SPEED. *TR

Mileage: 35,000

I'M CURRENTLY AT 84,000 MILES ON MY 2005 GMC SIERRA, AND WHEN STOPPED WITH THE TRUCK IN PARK MY SPEEDOMETER IS SHOWING 90MPH THEN PROCEEDS UP FROM THERE WHILE DRIVING. I THINK THERE'S SOMETHING THAT NEEDS TO BE DONE. I HAVE SEVERAL FRIENDS WITH THE SAME YEAR MODEL VEHICLES MANUFACTURED BY GM. ALL HAVE THE SAME PROBLEMS. TALKED TO A DEALER ABOUT GETTING IT FIXED THEY TOLD ME IT WAS GOING TO COST 300 FOR THE PART, AND 200 DOLLARS TO HAVE IT PROGRAMMED.... *TR

Mileage: 84,000

THERE IS A KNOWN ISSUE WITH GMC VEHICLES WHERE THE ODOMETER QUITS WORKING AFTER 70,000 MILES. THERE IS, I BELIEVE, A RECALL ON THE 2003/2004 MODEL YEAR. I HAVE A 2005 GMC PICKUP THAT HAS THE EXACT SAME PART IN IT AS IS ALSO DEFECTIVE. IT GIVES INACCURATE READINGS OR PEGS AT 120 OR 0. THIS IS VERY DANGEROUS. IF IT WASN'T SO EXPENSIVE, I'D FIX IT MYSELF. BUT THIS IS A DEFECTIVE PART PUT IN THE VEHICLE BY GM AND SHOULD BE FIXED BY GM. *TR

Mileage: 70,000

AFTER 70,000 MILES THE SPEEDOMETER STOPPED FUNCTIONING CORRECTLY. IT WILL READ 120 GOING 70 OR READ 20 GOING 50. SO ITS READING TOO HIGH AND TOO LOW. ALSO IT SEEMS IT IS STARTING TO HAVE OTHER ELECTRICAL ISSUES AS WELL. *TR

Mileage: 70,000

I HAVE A 2005 GMC SIERRA Z71, ABOUT TWO WEEKS AGO I WAS DRIVING IN THE COUNTRY ONLY TO GLANCE DOWN AND SEE 95 MILES PER HOUR, I BRAKED HARD ONLY TO REALIZE I WASN'T GOING THAT FAST. AFTER PULLING OVER TO THE SIDE OF THE ROAD I NOTICED MY SPEEDOMETER READ 35 AT A COMPLETE STOP. SINCE THEN IT HAS WORKED SOME DAYS OTHER DAYS IT WILL NOT READ BEYOND 50 MILES PER HOUR OR IT WILL BE SOME BIZARRE READING. I HAVE OWNED THE TRUCK FOR 3YRS 6 MONTHS IT HAS AROUND 31,500 MILES UNDER MILEAGE WARRANTY OF 36,000 MILES BUT 6 MONTHS PAST THE TIME WARRANTY. *TR

Mileage: 31,000

2005 GMC SIERRA SPEEDOMETER MALFUNCTION. DEALERSHIP STATES A NEW INSTRUMENT CLUSTER IS REQUIRED TO FIX THE PROBLEM. *TR

Mileage: 85,000

I OWN A 2005 GMC SIERRA AND THE SPEEDOMETER HAS FAILED. I OWN A GPS SO I USE THIS TO HELP DETERMINE THE SPEED I AM TRAVELING. I BROUGHT MY VEHICLE INTO THE DEALER ON SEVERAL OCCASIONS AND CONTACTED GM AND THEY STATED THEY COULD NOT HELP ME THAT I WOULD HAVE TO PAY $380.00 TO GET IT REPAIRED. TWO DAYS AFTER BRINGING INTO MY LOCAL DEALER I RECEIVED A LETTER IN THE MAIL STATING THERE WAS A CLASS ACTION LAWSUIT AGAINST GM FOR DEFECTIVE SPEEDOMETERS ON CERTAIN MAKES AND MODELS. *TR

Mileage: 88,407

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 5 MPH, THE CONTACT RELEASED THE ACCELERATOR PEDAL IN ORDER FOR THE VEHICLE TO COAST. THE VEHICLE THEN STALLED. SHE SHIFTED THE GEAR FROM DRIVE INTO NEUTRAL AND RESTARTED THE VEHICLE. LATER THAT WEEK, THE SPEEDOMETER DISPLAYED 55 MPH WHILE THE VEHICLE WAS IN PARK. WHILE DRIVING TO HER PLACE OF BUSINESS, THE SPEEDOMETER DISPLAYED 100-120 MPH. LATER THAT DAY, THE CONTACT DROVE THE VEHICLE TO THE DEALER AND WAS INFORMED TO BRING IT BACK FOR A DIAGNOSTIC AND REPAIR. THE MANUFACTURER HAS NOT BEEN NOTIFIED. THE CURRENT MILEAGE WAS 72,500 AND FAILURE MILEAGE WAS 72,300. UPDATED 2/2/09 *CN THE CONSUMER STATED THE SPEEDOMETER BECAME STUCK AT 47 MPH AT STARTUP. THE CONSUMER STATED HE DID NOT KNOW HOW FAST HE WAS DRIVING, SINCE THE SPEEDOMETER WAS INOPERATIVE. UPDATED 02/04/09. *JB

Mileage: 72,300

THE INSTRUMENT CLUSTER PANEL ON MY 2005 GMC SIERRA PICK UP CONSTANTLY READS THE WRONG SPEED. AT TIMES IT REGISTERS 0 MPH WHEN IM ACTUALLY DRIVING. *TR

Mileage: 74,000

THE SPEEDOMETER HAS BEEN ERRATIC FOR THE LAST 2K MILES BUT NOW AT 43K MILES HAS COMPLETELY DIED. *TR

Mileage: 41,000

I WAS DRIVING MY 2005 GMC SIERRA 1500 TRUCK AND THE CAB FILLED WITH SMOKE THE A SMALL FIRE DEVELOPED ON THE WIRE BUNDLE THAT CONNECTS TO THE FAN BLOWER UNDER THE DASH PASSENGER SIDE. I HAD TO PULL OVER AND PRY THE BURNT CONNECTOR OFF OF THE RESISTOR / BLOWER HOOK UP. THE FUSE DID NOT WORK AND THE CONNECTOR CONTINUED TO BURN UNTIL I SHUT OFF THE TRUCK AND REMOVE THE CONNECTOR. I PLAN TO TAKE THE TRUCK INTO SKILLMAN GMC SINCE A FUSE DID NOT BLOW PRIOR TO THE BURNING OF THE WIRING. ALSO I DID A BRIEF SEARCH AND FOUND OTHERS HAD SIMILAR ISSUES WITH EITHER THE GMC SIERRA AND THE CHEVY SILVERADO TRUCK. *TR

Mileage: 43,000

SPEEDOMETER STOPPED WORKING. WOULD MANIFEST ITSELF IN A COUPLE OF WAYS. 1) IT WOULD SHOW A STEADY SPEED OF 25 MPH REGARDLESS OF MY ACTUAL SPEED. 2) WOULD SHOW I AM GOING AS MUCH AS 50MPH OVER MY ACTUAL SPEED. *TR

Mileage: 20,000

TL*THE CONTACT OWNS A 2005 GMC SIERRA 1500. WHILE DRIVING AT ANY RATE OF SPEED, THE SPEEDOMETER DISPLAYS INACCURATE READINGS. THE VEHICLE HAS NOT BEEN TAKEN TO THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 105,000.

Mileage: 105,000

THE SPEEDOMETER FAILED AFTER 60,000 MILES. *TR

Mileage: 60,000

FAN SPEED 5 WILL NOT WORK AND SPEED 4 SMELL LIKE BURNING WIRES, DRIVERS TEMP CONTROL WILL NOT WORK ONLY COLD AIR. CONNECTOR UNDER PASSENGER SIDE FAN BLACK WIRE BURNED INTO AND MELTED CONNECTOR. GMC PARTS MAN SAID THERE WAS A NATIONAL BACKORDER ON PARTS BECAUSE SO MANY WES GO BAD. *TR

Mileage: 65,000

2005 GMC SIERRA - IF THE VEHICLE SITS FOR 3-4 DAYS WITHOUT BEING DRIVEN, THE BATTERY GOES DEAD. NOTHING HAS BEEN LEFT ON. *JB

Mileage: 20,000

ELECTRICAL SYSTEM, ALL MY TRUCK LIGHTS DIM VERY LOW WHEN I ROLL THE WINDOWS UP OR DOWN WHEN DRIVING, WHEN I HIT THE BRAKES ALL LIGHTS DIM AND VOT. DROPS WE HAVE TAKEN IT IN TO THE SHOP A LOT FOR THIS AND STILL NO FIX. SERVICE ENGINE LIGHT STAYS ON AND MY TEMPERATURE GAUGE DOESN'T WORK I TOOK IT IN AND THEY SAID THIS PROBLEM IS ONLY IN ALASKA AND THERE IS NO FIX. FRONT DIFF HAS BEEN A PROBLEM SINCE THE DAY WE PICKED IT UP THE HAVE FIXED DIFFERENT THINGS ON IT. *JB

ELECTRICAL SYSTEM, ALL MY TRUCK LIGHTS DIM VERY LOW WHEN I ROLL THE WINDOWS UP OR DOWN WHEN DRIVING, WHEN I HIT THE BRAKES ALL LIGHTS DIM AND VOT. DROPS WE HAVE TAKEN IT IN TO THE SHOP A LOT FOR THIS AND STILL NO FIX. SERVICE ENGINE LIGHT STAYS ON AND MY TEMPERATURE GAUGE DOESN'T WORK I TOOK IT IN AND THEY SAID THIS PROBLEM IS ONLY IN ALASKA AND THERE IS NO FIX. FRONT DIFF HAS BEEN A PROBLEM SINCE THE DAY WE PICKED IT UP THE HAVE FIXED DIFFERENT THINGS ON IT. *JB