Honda Odyssey 2018 Owner's Manual page 134

uuGauges and DisplaysuDriver Information Interface
■
Show Tachometer
You can show or hide the tachometer.
132
Press the / button to select Show
3 4
Tachometer, then press ENTER.
u The tachometer appears when the check
box is checked.
1Show Tachometer
Selecting Default All in Vehicle Customization
does not restore these settings to their original state.