HUD English/Metric Input
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The head-up display (HUD) illuminates the speedometer in either english (mph) or metric (km/h) units depending upon the class 2 message received from the instrument panel cluster (IPC).