Average Vehicle Speed - Lexus GX470 2004 Repair Manual

GAUGES, METERS AND SERVICE REMINDER INDICATORS
D Average vehicle speed
" U.S.A.
" Canada
82
Average vehicle speed is calculated and displayed based
on total driving distance and total driving time with the
engine running.
The displayed value is updated every 10 seconds.
To reset the calculations, push and hold the "RESET" button for
more than 1 second.