There are 18 owner-reported engine complaints for the 2005 Pontiac G6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2005 Pontiac G6. The contact stated while driving at 70-75 MPH, the vehicle started misfiring. The check engine warning light illuminated. The contact continued to drive. The vehicle was taken to an independent mechanic to be diagnosed and repaired; however, the failure reoccurred while driving. The vehicle was taken back to the independent mechanic and the failure was associated with the emissions and cooling system. The contact stated that the vehicle was repaired; however, the check engine warning light illuminated two days later. The contact stated that the failure had been reoccurring while driving. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 174,000.
TL* THE CONTACT OWNS A 2005 PONTIAC G5, WHILE DRIVING HAD STOPPED AT A STOP LIGHT AND NOTICED FLAMES UNDER THE HOOD. CONSUMER PULLED INTO A CONVIENCE STORE AND PARKED THE CAR. THE FIRE DEPARTMENT WAS CALLED TO THE SCENE AND EXTINGUISHED THE FLAMES. THE VEHICLE WAS TOWED AWAY. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOT CONTACTED. DONOVAN CADILLAC (5800 W. KELLOGG DR, WICHITA, KS) WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 210,000. *BF*JB
TL* THE CONTACT OWNS A 2005 PONTIAC G6. THE CONTACT STATED THAT THE VEHICLE MADE AN ABNORMAL DINGING NOISE AND DECELERATED. AFTER A FEW SECONDS, THE VEHICLE ROLLED AND RESTARTED ON ITS OWN WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. IN ADDITION, THE CHECK ENGINE INDICATOR ILLUMINATED AND ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER AND DEALER WERE NOT MADE AWARE OF THE FAILURES. THE FAILURE MILEAGE WAS 161,000.
HEARING NOISE UNDER THE HOOD. TOOK TO DEALER GARAGE, THEY DETERMED THAT RODS & PISTONS FAILING. MAY ONLY HAVE 5 THOUSAND MILES LEFT IF LUCKY BEFORE TOTAL ENGINE FAILURE.
TL* THE CONTACT OWNS A 2005 PONTIAC G6. UPON ENTERING THE VEHICLE IN THE MORNINGS, THE WINDSHIELD AND SIDE WINDOWS OF THE VEHICLE HAD EXCESSIVE CONDENSATION. ON ONE OCCASION, THE VEHICLE WAS UNABLE TO START. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 122,000. UPDATED 11/18/15*LJ
WHILE DRIVING MY VEHICLE I EXPERIENCED A LOSS OF POWER STEERING AND A LOSS OF ACCELERATION WHILE DRIVING ON A BUSY MAIN STREET I WAS FORCED TO COME TO A COMPLETE STOP . MY CURRENT SPEED BEFORE LOSS OF POWER WAS 45 MPG AND IMMEDIATELY DROPPED TO 0 MILES AS THE DASHBOARD READ POWER STEERING ENGINE DISABLED. LUCKILY MY EMERGENCY LIGHTS STILL WORKED AND I AVOIDED A CRASH BUT I DO HOPE THAT GM RESOLVES THIS ISSUE AND MAKES A RECALL AS SOON AS POSSIBLE TO PREVENT CASUALTIES AND FATALITIES. *TR
I HAVE HAD PROBLEMS WITH EXHAUST FAILURE, ELECTRICAL WITH THE FRONT HEAD LIGHTS AND TURN SIGNAL WORKING AND NOT WORKING, AND THE CAR NOT WANTING TO START UP, WHEN CAR IS PUT IN DRIVE WANTING TO MOVE AT FAST SPEED WHEN LET FOOT OFF BRAKE. *TR
TL* THE CONTACT OWNS A 2005 PONTIAC G6. THE CONTACT STATED THAT THE ENGINE HESITATED WHENEVER THE VEHICLE WAS STARTED. THE FAILURE OCCURRED NUMEROUS TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS UNKNOWN.
FUEL/GASOLINE IS LEAKING OUT. HEAVY RAW GASOLINE SMELL WHEN CAR IS TURNED OFF. WHEN AIR CONDITIONER IS TURNED ON IT MAKES A CONTINUOUS CLICKING NOISE. *TR
I SMELLED A VERY STRONG ODOR OF GAS AS I WALKED UP TO MY CAR. THE CHECK GAS CAP DISPLAY CAME ON. I REPLACED THE GAS CAP AND WARNING IS STILL DISPLAYED. THE SMELL OF GAS HAS CONTINUED TO WORSEN AND SEEMS TO BE COMING FROM THE GAS TANK. IT DOESN'T MATTER IF THE CAR IS RUNNING OR NOT. I HAVE RESEARCHED AND FOUND MANY OWNERS OF THE SAME YEAR AND MAKE CAR ARE HAVING THE SAME PROBLEM HOWEVER, NOBODY HAS FOUND THE EXACT CAUSE. SUGGESTIONS HAVE BEEN TO CHECK EVAPORATIVE SOLENOID, GASKETS, TUBING TO AND FROM TANK. I'VE DONE ALL AND THE ODOR CONTINUES TO WORSEN. *TR
GM SPUTTER START. IF IT DOES START IT SOMETIMES DOESN'T START ON THE FIRST TRY AND SOMETIMES CATCHES AND SPUTTERS BEFORE IT STARTS. I HAVE TO KEEP THE GAS PUSHED SO IT WILL CATCH AND START. LIKE THE IDLE NEEDS ADJUSTED OR SOMETHING. *TR
TL* THE CONTACT OWNS A 2005 PONTIAC G6. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE REAR BRAKE LIGHTS ERRONEOUSLY ILLUMINATED WITHOUT THE BRAKES BEING APPLIED. THE CONTACT TOOK THE VEHICLE TO THE DEALER FOR INSPECTION WHERE THEY STATED THAT THE BRAKE PEDAL SWITCH SHORTED INTERNALLY AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 75,000. .... UPDATED 02-20-13 *BF THE CONSUMER STATED THE CRUISE CONTROL WOULD NOT ENGAGE AND THE TRACTION CONTROL WOULD RANDOMLY TURN ON. THE VEHICLE WAS REPAIRED. UPDATED 02/21/2013 *JS
MY CAR WILL TELL ME THAT THE ENGINE POWER HAS BEEN REDUCED AND THEN IT WILL DISABLE THE MOTOR. WHEN THIS HAPPENS I HAVE TO HOPEFULLY BE ABLE TO PULL TO THE SIDE OF THE ROAD AND SHUT THE CAR OFF AND RESTART IT. THIS CAN HAPPEN UP TO SEVERAL TIMES A DAY. IT DID IT TO ME 5 TIMES IN A SPAN OF A HALF HOUR TODAY. IT MAKES ME VERY NERVOUS WHEN THERE ARE CARS BEHIND ME BECAUSE I'M NOT SURE IF THEY ARE GOING TO REALIZE THAT I CAN'T MOVE. IT IS ESPECIALLY SCARY WHEN IT HAPPENS AT A STOPSIGN OR STOPLIGHT. *TR
DT: THE CONTACT STATED THAT THE VEHICLES POWER STEERING COLUMN LOCKS UP WHILE DRIVING 45 MPH OR LESS. THE WARNING SIGN PRIOR TO FAILURE IS THE STEERING WOULD PULL TO THE LEFT UNDER NORMAL ROAD CONDITIONS. THE VEHICLE WAS TAKEN INTO THE DEALERS BUT THEY WERE UNABLE TO DUPLICATE THE PROBLEM. THE DEALERS REPLACED THE STEERING COLUMN. THE VEHICLE PRESENTED FURTHER PROBLEMS WITH THE STEERING COLUMN. THE VEHICLE WAS TAKEN BACK TOT HE DEALER AND THEY REPLACED THE SHAFT AND MOTOR ASSEMBLY. THE CONTACT CALLED THE MANUFACTURER AND FILE A COMPLAINT WITH A REPRESENTATIVE. UPDATED 8/21/2006 - THE HARMONIC BALANCER WAS NOT SEATED PROPERLY. *NM
SOMETIME WHEN VEHICLE IS STARTED THE ENGINE DRAGS AND IS SLOW TO TURN OVER. *NM
TOO MANY COMPLAINTS TO WRITE THEM ALL UP, HERE ARE A FEW: ENGINE MAKES METAL GRINDING "WHOOSHING" NOISE INDEPENDENT FROM ACCELERATION-DEALER CANNOT REPLICATE, WARPED ROTORS-DEALER WANTED OVER $1,000 TO FIX, HAVE HAD RADIO REPLACED 5 TIMES DUE TO DISC ERRORS-DEALER KEEPS REPLACING, HAD STEERING RACK AND WATER PUMP REPLACED AT 30,000 MILES-DEALER COVERED, SENSOR THAT TURNS ON LIGHTS WENT-DEALER REPLACED, POWER STEERING PROBLEMS, HARD TO TURN AND ROUGH, BUT NO "LOCK-UPS" LIKE OTHERS HAVE HAD(THANKFULLY)-DEALER CANNOT REPLICATE, HAD DRIVERS SIDE FRONT PANEL SUNROOF DRAIN CLOG, WATER SOAKED FRONT CARPET(3 INCHES OF WATER)-DEALER FIXED BUT LEFT ME WITH A MOLDY CARPET!, ENGINE FLUTTERS/STUTTERS TO A START ON RANDOM-DEALER HAS NO ANSWER FOR ME, TRUNK LID WAS SCRAPING REAR BUMPER DUE TO LATCHES BEING TIGHTENED WRONG-DEALER FIXED, HEADLAMP FULL OF CONDENSATION-DEALER FIXED, CAR RIDICULOUSLY BAD IN THE RAIN AND SNOW, STABILITY CONTROL MAKES LOUD GRINDING NOISES AND CAUSES THE CAR TO BUCK, REPLACED TIRES WITH SNOW TIRES, STILL BAD-DEALER HAS NO ANSWER FOR ME, LARGE DEEP SCRATCH ACROSS WINDSHIELD RIGHT IN THE LINE OF VIEW FROM CONTOUR OEM WINDSHIELD WIPERS, DEALER SAID TOO BAD. THOSE ARE JUST A FEW, I CANT REMEMBER THEM ALL, THIS CAR IS SUCH A LEMON. IM STICKING WITH TOYOTA FROM NOW ON! I LEARNED MY LESSON! *TR
DT: THE CONSUMER STATED WITH NO WARNING LIGHTS THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO THE DEALERSHIP MULTIPLE TIMES, BUT THEY WERE UNABLE TO DIAGNOSE THE PROBLEM. THE VEHICLE WILL START IMMEDIATELY AFTER STALLING. *AK UPDATED 11/29/05.*JB
I PURCHASED MY 2005 PONTIAC G6 JAN. 10, 2005. THIS CAR IS HAVING ISSUES STARTING FIRST THING. IT WILL EITHER OVER START LIKE I HELD THE IGNITION TOO LONG OR IT WILL KEEP TRYING TO START ONCE IT HAS BEEN STARTED. IN BOTH CASES, THE ENGINE WILL DIE. I HAVE BEEN NOTIFYING THE DEALERSHIP ABOUT THIS ISSUE SINCE THE CAR WAS LESS THAN A MONTH OLD. EACH TIME, IT WAS BROUGHT INTO THE DEALERSHIP, RAN ON THE COMPUTER, AND EXPLAINED TO ME THAT THERE WAS NOTHING WRONG AND THE TECHNICIANS COULDN'T RE-CREATE THE ISSUE. I CALLED GMAC ABOUT THE ISSUE AND THEY HAD THEIR OWN TECHNICIAN COME OUT. THEIR TECHNICIAN TOLD ME THAT A CERTAIN VALVE NEEDED TO BE REPLACED AND ONCE IT WAS FIXED, IT WOULD SOLVE ALL ISSUES. PART WAS INSTALLED AND TO THIS DAY, THE CAR STILL IS OVERSTARTING. I STATED 700 FAILURES BECAUSE THIS HAPPENS EVERY TIME I START THE CAR IN THE MORNING. *NM
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