6.4% of complaints about the 2000 Pontiac Bonneville came in the first year, which is unremarkable for a 2000 vehicle — around the middle of the 213 model-years on record. The median complaint arrives at 4.5 yr in service. The most-reported system is visibility (55 complaints), typically at 5.0 yr or about 60,000 miles.
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, THE FUEL FROM THE LEAKING REGULATOR AND A MISTIMED SPARK CAN CAUSE A BACKFIRE.
THE BACKFIRE CAN RUPTURE THE INTAKE MANIFOLD. THE RUPTURE OF THE INTAKE MANIFOLD CAN DISPLACE A FUEL LINE, PULLING AN INJECTOR OUT OF PLACE, AND CAUSING A FUEL LEAK AND POSSIBLE FIRE.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES HAVE INTERNAL FLUID LEAKS IN THE BRAKE HYDRAULIC CONTROL UNIT.
WHEN THE REAR BRAKE PROPORTIONING, ANTILOCK BRAKE, TRACTION CONTROL, OR STABILITY CONTROL FEATURE IS ACTIVATED IN SOME DRIVING SITUATIONS, THE FEATURE MAY NOT PERFORM AS DESIGNED.
WHILE DRIVING THE VEHICLE HIT A BUMP THE SERVICE STABILITY SYSTEM WARNING CAME ON INTERMITTENTLY WHICH COULD HAVE CAUSED PARTIAL LOSS OF STEERING/BRAKES AND TRACTION CONTROL. THIS SYSTEM IS DESIGNED TO SLOW VEHICLE OR TO PREVENT VEHICLE FROM GOING AROUND A CURB TOO FAST. CONTACTED DEALER AND MANUFACTURER. THIS HAS HAPPENED 4 TIMES. *AK
BATTERY LOCATED IN THE BACK OF THE REAR SEAT HAS GONE BAD, AND CAUSING SULFURIC ACID FUMES TO ESCAPE INTO THE PASSENGER'S COMPARTMENT, MAKING PASSENGERS ILL. DEALER CONTACTED. *AK *ML
ELECTRICAL CONNECTION AT FUSE BOX UNDER REAR SEAT WAS LOOSE AND SPRARKING/CAUSED COMPLETE ELECTRICAL FAILURE
REAR WINDOW SHATTERED, CONSUMER FEELS THIS WAS A RESULT OF A MALFUNCTIONING DEFROSTER UNIT IN THE GLASS. *SLC