2001 Nissan Altima Owner's Manual - Page 201

LIGHTS HEADLIGHTS The headlamp is a semi-sealed beam type which uses a replaceable halogen bulb. Because the headlamp assembly must be removed from the vehicle for bulb replacement, it is recommended that your vehicle be taken to an authorized NISSAN Dealer. ● High pressure halogen gas is sealed inside the halogen bulb. The bulb may break if the glass envelope is scratched or the bulb is dropped. ● Use the same number and wattage as originally installed: Wattage 65/55 Bulb no. 9007(HB5) ● Aiming is not necessary after replacing the bulb. When aiming adjustment is necessary, contact an authorized NISSAN dealer. 1. Disconnect the negative (-) battery cable. Replacing the headlight bulb CAUTION ● Do not leave the headlamp assembly open without a bulb installed for a long period of time. Dust, moisture, smoke, etc. entering the headlamp body may affect bulb performance. Remove the bulb from the headlamp assembly just before a replacement bulb is installed. ● Only touch the plastic base when handling the bulb. Never touch the glass envelope. Touching the glass could significantly affect bulb life and/or headlamp performance. LDI0009 2. Remove the four screws from the bottom of the front fender protector (see above illustration) and position the fender protector aside to allow access to the headlamp mounting fasteners. 8-24 Do-it-yourself