There are 7 owner-reported body & structure complaints for the 2005 Pontiac G6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THERE IS DRAIN TUBING CONNECTED TO THE SUNROOF THAT COMES UNCONNECTED BECAUSE ITS TOO SHORT AND LEAKS/POURS WATER ALL OVER THE PASSENGER FRONT AND BACK SIDE OF THE VEHICLE. IT HAPPENS WHETHER YOURE DRIVING IT OR ITS SITTING STILL. WATER JUST POURS IN AND SOAKS EVERYTHING ON PASSENGER SIDE.
TL* THE CONTACT OWNS A 2005 PONTIAC G6. THE CONTACT STATED THAT THE ROOF FAILED AND CAUSED WATER TO ENTER INTO THE VEHICLE. THE CONTACT WAS CONCERNED THAT THE WATER WOULD DAMAGE THE CARPET, DASHBOARD, AND ELECTRICAL SYSTEM. THE CONTACT DID NOT TAKE THE VEHICLE TO THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 105,000. *TT
TL*THE CONTACT OWNS A 2005 PONTIAC G6. THE CONTACT STATED THAT DURING INCLEMENT WEATHER CONDITIONS, WATER LEAKED INTO THE INTERIOR OF THE VEHICLE, WHICH CAUSED ELECTRICAL ISSUES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE ENTIRE WEATHER STRIPPING WAS REPLACED. THREE MONTHS AFTER THE REPAIR WAS PERFORMED THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 7,000.
I OWN A 2005 PONTIAC G-6 WITH ABOUT 60,000 MILES . BOUGHT THE CAR USED AND HAVE ONLY PUT ABOUT 10,000 MILES ON IT. IT HAS A PANORAMIC SUNROOF THAT WAS WORKING FINE FOR ABOUT 6 MONTHS AND ALL OF A SUDDEN GETS STUCK . MY FIRST PANEL IS OPEN.. WANTS TO WORK BUT LOOKS OUT OF LINE WITH THE OTHER PANELS. TOOK IT TO THE DEALERSHIP AND THEY SAY THAT IT IS "COMING APART" AND THEY HAVE TO REPLACE IT . I DON'T HAVE AN EXT WARRANTY SO IM QUOTED $1,400 TO REPLACE THE WHOLE THING. WENT TO ANOTHER PLACE THEY SAY THAT SAME THING, I HAVE TO REPLACE IT. I AM ABOUT TO GET THIS THING FIXED FOR ABOUT $ 800 OR SO FOR A USED ONE. JUST RECENTLY I SPENT $700.00 REPLACING MY STEERING COLUMN DUE TO POWER STEERING FAILURE. I HAVE HAD THE CAR FOR LESS THAN 1 YR AND I HAVE HAD PROBLEM AFTER PROBLEM WITH IT ! I HATE THIS CAR AND PLAN ON TRADING IT IN SOON.... *TR
ON OUR 2005 PONTIAC GT 6, DURING MOST DAYLIGHT DRIVING CONDITIONS, THE INSTRUMENT PANEL IS SO DIFFICULT TO READ THAT, AT TIMES, IT IS IMPOSSIBLE TO TELL HOW FAST ONE IS TRAVELING. SOMETIMES, IT TAKES A SECOND OR MORE TO MAKE IT OUT. RARELY, IT IS EASILY READABLE. WE THINK THAT THE EXTRA TIME NEEDED TO DISCERN ONE'S SPEED, IF IT CAN BE DETERMINED AT ALL, COULD EASILY LEAD TO AN ACCIDENT. THE GAS GAUGE AND COOLANT TEMPERATURE GAUGES ARE EVEN MORE DIFFICULT TO MAKE OUT, BUT THAT DOES NOT REPRESENT AS SERIOUS A PROBLEM AS FAILING TO BE ABLE TO READ ONE'S SPEED. IF THE ABILITY EXISTED TO TURN ON THE INSTRUMENT PANEL LIGHTING, THE PROBLEM WOULD BE ELIMINATED. *NM
1) DRIVING MY PONTIAC G6 ONTO A REGULAR DRIVEWAY SLOPE 2) FORWARD METAL IMPINGEMENTS (ONLY DRIVER SIDE AFFECTED) ATTACHED TO THE CHASSIS WAS BENT BACK DUE TO THE I-BEAM STRUCTURE "CATCHING" THE CONCRETE DRIVEWAY SLOPE. CONSEQUENCE OF DESIGN FAILURE CAUSED THE ENTIRE ENGINE CRADLE TO SHIFT AND THERE BY ALLOWING FOR AN INCREASE IN DAMAGE POSSIBILITIES TO ENGINE BLOCK AND RADIATOR TO OCCUR. ALSO WITH I-BEAM STRUCTURE BEING BENT DOWNWARD IT HAS CREATED A HANGING PIECE OF METAL TO POSSIBLY CATCH ROAD DEBRIS (COULD LEAD TO TIRE FAILURE) AND ALLOW SLOPE CHANGES IN THE ROAD TO ONCE AGAIN CATCH THE BENT METAL TO CREATE EVEN MORE DAMAGE. 3) THE DEALERSHIP SUGGESTED REPLACING TO THE WHOLE ENGINE CRADLE. I SUGGEST THAT GM SHOULD ATTACH A METAL BAR HORIZONTALLY TO THE TWO FRONT METAL IMPINGEMENTS TO EFFECTIVELY CREATE A GRIND BAR, GREATLY REDUCING THE POSSIBILITIES OF METAL BENDING CAUSING A ROAD HAZARD AND ENGINE CRADLE REPLACEMENT.
OPEN REAR WINDOW OR WINDOWS AT SPEED OF 40 MPH AND ABOVE CREATES A SAFETY PROBLEM AS THE NOISE FROM THE REAR OF THE CAR BECOMES SO INTENSE THAT YOU EITHER HAVE TO CLOSE THE WINDOW OR STOP THE CAR. THE NOISE SOUNDS LIKE A ROTAR ON A HELICOPTER AND THE FASTER YOU GO OVER 40 THE LOUDER IT BECOMES AND YOUR HEARING BECOMES SO BAD YOU MUST STOP OR PUT WINDOW BACK UP. IR REPORTED THIS TO GM AND THEY TOLD ME ITS THE NATURE OF THE BEAST TOTALLY UNACCEPTABLE ANSWER. *AK
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