1999 Toyota Avalon Owners Manual - Page 219
1999 Toyota Avalon Manual
Page 219 highlights
'99 AVALON (USA/CANADA) −U -Headlights 1. Unplug the connector while depressing the lock release. If the connector is tight, wiggle it. 2. Turn the bulb and remove it. 3. Install a new bulb and the connector into the mounting hole. Aiming is not necessary after replacing the bulb. When aiming adjustment is necessary, contact your Toyota dealer. 219