Transport Canada
1996 PONTIAC GRAND PRIXTransport Canada Recall #1999083
The official notice
Defect
On certain vehicles, the spark plug wires may be causing the Malfunction Indicator Lamp (MIL) to be illuminated, as well as causing rough idle and poor performance. These conditions may be due to a dielectric breakdown of the plastic extender piece at the boot joint of the spark plug wire.
Safety Risk
No risk description available.
Remedy
Dealers will replace all six spark plug wires with a new service spark plug wire assembly kit that is designed to be robust against dielectric breakdown failures.
3,107 vehicles affectedMfr ref: 99021Updated June 10, 2026