1998 Mercury Sable Owner Guide 1st Printing - Page 165

Maintenance and care AIMING THE HEADLAMPS Your vehicle is equipped with a Vehicle Headlamp Aim Device (VHAD) on each headlamp body. Each headlamp may be properly aimed in the horizontal direction (left/right) and the vertical position (up/down) using your VHAD system. The headlamps on your vehicle are properly aimed at the assembly plant. A bubble (vertical indicator) that is not centered between the two black lines does not necessarily indicate out-of-aim headlamps. If your vehicle is not positioned on a level surface, the slope will be included in the level indicator. Therefore, vertical and horizontal headlamp adjustment should be performed only when beam direction appears to be incorrect. You will need one 7 mm wrench or socket with ratchet to make the adjustments. If the vehicle has been in an accident, the vehicle's front structure should be properly aligned before aiming the headlamps. Horizontal aim adjustment 1. Park the vehicle on a level surface. 2. With the hood open, locate the horizontal indicator and adjusting screw. Remove the protective cap to access the 7 mm adjusting screw head. 165