There are 11 owner-reported fuel system complaints for the 2006 GMC Sierrain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. THE CONTACT STATED THAT THE VEHICLE WAS FILLED WITH FUEL AND THE GAUGES SHOWED THAT THE TANK WAS FULL. THE FOLLOWING DAY, WHEN THE VEHICLE WAS STARTED, THE FUEL GAUGE SHOWED LESS THAN A HALF TANK OF FUEL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE CONTACT STATED THAT THERE WAS NO SIGNS OF A FUEL LEAK OR ANY FUEL ODOR. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 80,000.
ARRIVING AT MY RV SITE IN ALABAMA FROM UPPER MICHIGAN A NEIGHBOR SAW SOMETHING LEAKING FROM NEAR THE LEFT FRONT TIRE OF MY PICKUP. UPON DETERMINING IT WAS DIESEL I IMMEDIATELY DROVE TO THE LOCAL CHEVY DEALER. THEY SAID DUE TO THE CONDITION OF THE LINES THEY ALL BE REPLACED. NEXT DAY I WAS ASKED TO COME TO THE GARAGE TO LOOK AT THE BRAKE LINES AS THEY COULD NOT MOVE ANY TO GET PROPER ROUTING OF THE FUEL LINES.THE LINES ATTACHING TO THE ABS MODULATOR, TOTAL OF 6, LOOKED LIKE YOU COULD CRUMBLE THEM WITH YOUR HAND SO ALL WERE REPLACED AS WELL. I PULL A 33 FOOT FIFTH WHEEL AND CONSIDER WE WERE EXTREMELY FORTUNATE NOTHING HAPPENED ON THE ROAD. *TR
I PURCHASED MY PICKUP NEW IN JAN. 2007 AND USE IT TO TOW AN 8X16 TRAILER W/ELECTRIC BRAKES FOR A PART TIME BUSINESS THROUGHOUT THE SUMMER. THE TRAILER WEIGHS APPROX. 6000 LBS. LOADED AND THE TRUCK IS RATED FOR 8,000 LBS. APPROXIMATE TOWING MILEAGE IS 3 TO 4,000 MILES PER YEAR. AFTER TOWING THE TRAILER 200 MILES ON SEPT. 14, 2012 MY WIFE NOTICED SEVERAL OIL LEAKS ON THE ASPHALT NEARBY. I SUSPECTED SOMETHING IN THE DIFFERENTIAL AREA AND DROVE TO THE NEAREST GMC DEALERSHIP SEVERAL MILES AWAY. THEY DIAGNOSED IT AS A REAR BRAKE LINE AND ENDED UP REPLACING 6' OF IT ALONG WITH BOTH ROTORS AND CALIPERS AND A BRAKE SYSTEM FLUSH FOR A TOTAL OF $958.76. I'M 66 YRS. OLD AND HAVE NEVER HAD A BRAKE LINE GO IN ANY VEHICLE I'VE EVER OWNED AND I'VE LIVED IN MASSACHUSETTS ALL MY LIFE. MY LOCAL MECHANIC JUST TOLD ME THIS WEEK THAT THE REST OF THE BRAKE LINES ARE BADLY CORRODED AND SHOULD BE REPLACED ASAP. THIS WILL ADD ANOTHER $900 TO THE ENTIRE COST. THERE IS NO QUESTION IN MY MIND THAT GM HAS ALLOWED QUALITY IN WORKMANSHIP ON ITS BRAKE LINES TO FALL THROUGH THE CRACKS...AND AT THE PUBLIC'S EXPENSE. *TR
2006 SIERRA -75000MILES CLUNKING IN DRIVETRAIN WHEN TRANS. SHIFTS REAREND CLUNKS AND JUMPS IN AND OUT WHEN DIFF LOCK IS NEEDED CHATTER IN STEERING COLUMN ENGINE LIGHT COMES ON WHEN DOWN TO 1/2 -3/4 TANK (EVERYTIME) REFUEL IT GOES OUT DASH LIGHTS FOR THE RADIO BUTTONS SLOWLY GOING OUT DASH LIGHTS ON THE SLIDER FOR HEATER CONTROLS GOING OUT VERY POOR MPG 12-13 ON A GOOD DAY! SURE WOULD LIKE TO HAVE ALL THE RECALLS AND BULLETINS TAKEN CARE OF! NOTE TO MYSELF!! NEVER PURCHASE A GMC AGAIN! *TR
AFTER FILLING THE TANK I DROVE FOR SEVERAL HUNDRED MILES AND I LOOKED AT THE TANK AND IT SHOWED I HAD GAS SO I KEPT DRIVING, SOON THE ENGINE STOPPED AND I WAS LEFT STRANDED BY MY TRUCK AND I AM DISABLED. I THEN HAD THE VEHICLE TOWED AND THE SERVICE STATION FOUND NOTHING WRONG WITH IT OTHER THAN THEY ADDED GAS AND IT STARTED AND RAN FINE. I CONTINUED TO DRIVE THE TRUCK AND NOTICED THAT THE GAS WAS NOT GOING DOWN ON THE GAUGE LIKE IT SHOULD. ONE DAY I GOT IN MY TRUCK AND STARTED IT AND THE LOW FUEL SENSOR LIGHT CAME ON ALONG WITH A CHIME , THE (DIC) SAID THE FUEL WAS LOW BUT I HAD JUST FILLED IT UP AND HAD ONLY DRIVEN A FEW MILES. THE LOW GAS LIGHT STAYS ON ALL THE TIME NOW EVEN WHEN I FILL IT UP ALONG WITH THE SERVICE ENGINE LIGHT AND IT WILL CHIME EVERY TIME I START IT UP. I TOOK THE VEHICLE TO A MECHANIC AND HE STATED IT WAS A WORN FUEL LEVEL SENSOR AND HE HAS HAD SEVERAL GM VEHICLE THAT HAVE HAD THE SAME PROBLEM. I FEEL LIKE THIS IS A SAFETY PROBLEM ESPECIALLY WHEN YOU ARE DISABLED AND HAVE PROBLEMS GETTING AROUND IN THE FIRST PLACE. *TR
TL*THE CONTACT OWNS A 2006 GMC SIERRA. THE CONTACT STATED THE FUEL GAUGE MALFUNCTIONED AND HE WAS UNABLE TO READ THE AMOUNT OF FUEL THAT WAS IN THE VEHICLE. THE DEALER STATED THAT THE READER INSIDE THE FUEL TANK NEEDED TO BE REPLACED. THE CONTACT DID NOT REPLACE THE READER ALTHOUGH THE VEHICLE COULD SHUT OFF WHEN THE FUEL TANK WAS EMPTY WITHOUT ANY WARNING. THE FAILURE MILEAGE WAS 110,000.
TL* THE CONTACT OWNS A 2006 GMC SIERRA DENALI. THE CONTACT STATED THAT THE CHECK ENGINE LIGHT ILLUMINATED ON THE INSTRUMENT PANEL WHILE DRIVING APPROXIMATELY 45 MPH. THE VEHICLE WAS TAKEN TO AN INDEPENDENT REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE FUEL SYSTEM NEEDED TO BE REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NOT INCLUDED IN THE RECALL ASSOCIATED WITH NHTSA CAMPAIGN ID NUMBER: 06E043000 (FUEL SYSTEM, GASOLINE). THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 52,000 AND THE CURRENT MILEAGE WAS 77,000. THE VIN WAS UNAVAILABLE.
I HAVE A 2006 GMC SIERRA PICK-UP TRUCK WITH LESS THAN 20,000 MILE ON IT AND HAVE RUN OUT OF GAS TWICE WHEN THE GAS GAUGE READS MORE THAN A QUARTER TANK OF FUEL ON THE GAUGE. I JUST LISTENED TO A REPORT ON THE RADIO OF A POSSIBLE RECALL ON MANY GM VEHICLES WITH GAS GAUGE PROBLEMS JUST LIKE MINE. I WISH YOU WOULD LOOK INTO ADDING THE GM SIERRA PICK-UP TO THIS LIST FOR RECALL. *TR
UNDER NORMAL DRIVING CONDITIONS WITHOUT CAUSE THE FUEL FILTER WATER-IN-GAS SENSOR BLEED VALVE LEAKS FUEL. THIS CAUSES FUEL TO LEAK INTO THE ENGINE COMPARTMENT. SYMPTOMS INCLUDE FUEL ON THE GROUND, FUEL ODOR, HARD/LONGER ENGINE CRANKING. THERE ARE OTHER REPORTS OF THIS PROBLEM AT : HTTP://WWW.DIESELPLACE.COM/FORUM/SHOWTHREAD.PHP?P=3452490 ALSO HTTP://WWW.GOOGLE.COM/SEARCH?HL=EN&RLS=COM.MICROSOFT:*&Q=DURAMAX+FUEL+FILTER+LEAKING+WATER+SENSOR&START=10&SA=N. *TR
DRIVING 2006 GMC SIERRA PICK UP IN UTAH ON HWY 191 IN A CROSS COUNTRY MOVE AND PUSHED OFF THE ROAD TO THE SIDE BY A TRUCKER FRANTICLY TELLING ME TO RUN FROM THE TRUCK,IT WAS ON FIRE. LOCAL FIRE DEPARTMENT CONCLUDED THEIR INVESTIGATION THAT IT WAS THE FUEL LINE LEAKING AS CAUSE OF ORIGIN. ALSO STATE HIGHWAY PATROL CONCLUDED THE SAME AT A LATER DATE. I SUBMITTED A CLAIM FOR THE CONTENTS TO GM AND WAS LIED TO FOR 2 MONTHS BEFORE THEM SAYING IT WAS NOT THEIR FAULT. THEY INVESTIGATED THE VEHICLE WITHOUT CONSENT FROM STATE FARM. THE ONLY CONSENT WAS TO PHOTOGRAPH. THEY SPENT 3.5 HOURS COMPLETELY INVESTIGATING WITH NO SUPERVISION. THE WOMAN HANDLING THE CLAIM AT GM SAID TO ME AT THE END THAT QUOTE "SOMETIMES THEY STEP UP TO THE PLATE AND SOMETIMES THEY DON'T,SORRY" AND DENIED THE CLAIM. NOW THEY REFUSE TO SPEAK TO ME OR RELEASE THEIR REPORT SO I CAN RETAIN AN ATTORNEY. THEY HAVE LIED AND CHEATED THROUGH THIS WHOLE PROCESS WITH OTHER BURNED LATE MODEL GM PU'S ARE BURNED RIGHT NEXT TO MINE IN THAT YARD. THE TRUCK HAS BEEN STOLEN FROM, RIFLED THROUGH,A ND COMPROMISED BY RAIN AND GM. NOW IT IS FINALLY SHRINK WRAPPED IN PLASTIC AND WAITING FOR THE NEXT STEP. PLEASE HELP AS SOON AS YOU CAN BY INVESTIGATING THIS. THANK YOU. *JB
DT*: THE CONTACT STATED WHILE DRIVING 40 MPH ON THE HIGHWAY, A PASSING MOTORIST MOTIONED TO PULL THE VEHICLE OVER. THE CONTACT PULLED THE VEHICLE TO THE SIDE OF THE ROAD AND WHITE SMOKE ERUPTED FROM BETWEEN THE BED AND CAB OF THE TRUCK AS WELL AS UNDERNEATH. THE FIRE DEPARTMENT WAS ALERTED, AND EXTINGUISHED THE FLAMES. ALSO, THE POLICE WERE ALERTED, AND A REPORT WAS TAKEN. THE VEHICLE WAS DEEMED A TOTAL LOSS DUE TO THE EXTENSIVE FIRE DAMAGE. THE FIRE DEPARTMENT INSPECTED THE VEHICLE AND DETERMINED THERE WAS A SMALL HOLE IN THE FUEL TANK WHICH RESULTED IN GASOLINE LEAKING ONTO A NEARBY WIRING HARNESS AND ULTIMATELY CAUSING AN IGNITION SOURCE WHICH LED TO A FIRE. THE MANUFACTURER WAS NOT ALERTED.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026