Description & Operation: Tachometer
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
The tachometer indicates engine speed in thousands of RPM (revolutions per minute). Use it while driving to prevent engine over-revving. Driving with the engine running too fast causes excessive engine wear and poor fuel economy.