1997 Mercury Tracer Owner's Manual - Page 173
1997 Mercury Tracer Manual
Page 173 highlights
Maintenance and care Function Anti-theft LED Number of bulbs 1 LED Trade number See your dealer to order replacement assembly, service part #F57Z13B765-A Aiming the headlamps Your vehicle is equipped with a variable headlamp aiming device (VHAD) on each headlamp reflector extension and headlamp housing. Each headlamp may be properly aimed in the horizontal direction and the vertical direction by performing the following steps. The horizontal aim must be adjusted first. This procedure requires the use of a 4 mm box wrench or open end wrench. Position the vehicle on a surface that is level in the front-to-rear direction. If the vehicle cannot be placed on a true level surface, the headlamps still can be adjusted using the VHAD if the slope of the surface is accurately known and does not differ by more than 30.5 mm (1.2 in) from true level. 173