take out the instrument panel and it is on the top left side small bulb.
but if you have more then one burnt out replace them then
open the meter, buy a new bulb , put it in holder , refix
Replace the light bulb. Tail lights are usually dual filament, 2 filaments in one bulb.
lift tailgate and look for two screws and remove them, and then turn the bulb housing right and oull out
Overdrive is the normally allowed position so you don't see the light on If you turn OFF the overdrive , the overdrive off light will light up or if there is a problem the overdrive off light will flash
To change a dashboard light in a Toyota Previa, first, ensure the vehicle is turned off and disconnect the battery to avoid electrical issues. Remove the dashboard panel by unscrewing any screws and gently prying it away from the dashboard. Locate the faulty bulb in the instrument cluster, twist it counterclockwise to remove it, and replace it with a new bulb. Reassemble the dashboard panel and reconnect the battery to test the new light.
Normally the overdrive is allowed , so the overdrive OFF light does not light up When the overdrive is switched off , the overdrive OFF light will light up to let you know that the overdrive has been switched off
It could be because the bulb is burned out ot he wire is disconnected.
To replace the reverse light on a Toyota Previa, first, ensure the vehicle is turned off and in park. Open the rear hatch and locate the tail light assembly; you may need to remove a few screws or clips. Once exposed, disconnect the wiring harness and twist the bulb socket counterclockwise to remove it. Replace the old bulb with a new one, reassemble the socket and wiring, and test the light before securing everything back in place.
check out http://www.autozone.com/az/cds/en_us/0900823d/80/22/c9/8d/0900823d8022c98d/repairInfoPages.htm
overdrive light keeps flashing
The overdrive is "ON" when the light is "OFF". Notice the light for the overdrive has a slash through it.
The overdrive light will be off when the overdrive switch is pushed in. If the light flashes then that's a trouble shooting code.