Summary
The Pontiac Grand Prix has 18 recalls spanning 1977 through 2004, with the most serious recent issue affecting 2004 models where cracked or defective rear body mounts can eventually detach from the frame, allowing the steering shaft to separate from the steering gear and leaving the driver with no steering control.
The 2004 model year also has two brake-related recalls: front brake caliper bolts that were not adequately tightened can work loose or fracture, potentially causing brake failure, and a rear brake hose fitting that may not be properly sealed can leak fluid, lowering the brake pedal and increasing stopping distances. Moving back to the 2000 model year, the passenger airbag inflator can rupture during a crash deployment and scatter metal and plastic fragments into the cabin. That same year also has a seat belt buckle that may not withstand crash forces, allowing the buckle to fail when it is needed most.
The 1997 model year has an engine oil leak from a degraded rocker cover gasket on 3.8L engines, including the supercharged GTP version, where oil dripping onto the exhaust manifold under hard braking raises a fire risk. On 1996 models, a breakdown in the spark plug wire boot insulation can cause rough idle, poor performance, and a check engine light. The 1991 Grand Prix coupe has a headlamp circuit breaker that can trip when all three lamp circuits run simultaneously, cutting all headlights without warning. The 1988 model year carries several issues: engine cradle bolts corroding and pulling through their retainers can allow the steering shaft to separate and eliminate steering control; the transmission shift cable can disengage and leave the transmission in a gear different from what the shift indicator shows; lug nuts that were not torqued to specification can loosen and lead to wheel separation; and a front shoulder belt guide can cut the belt webbing in a crash. The 1988 model also has a parking brake that does not meet brake holding requirements. The 1985 model has a driver door lock switch that can expose an energized electrical terminal, short against the mirror cable, and start a fire. The 1984 model has an ignition coil prone to breakdown at higher voltages, which can cause misfires or a no-start condition. Going back to 1983, a rear brake line running against an air cleaner bracket can wear through over time and cause brake fluid loss and reduced braking. The 1977 model has rear axle shafts with potential metal flaws that can fracture and allow a wheel and tire to separate from the vehicle without warning.
