Description and Operation: Overspeed
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the overspeed indicator when the IPC detects that the vehicle speed is more than 120 km/h (75mph).