2003 Pontiac Bonneville Owner's Manual - Page 312

0 The vehicle should not have any snow, ice or mud attached to it. The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done. The vehicle should be normally loaded with a full tank of fuel and one person or 160 Ibs. (75 kg) on the driver's seat. Tires should be properly inflated. The headlamp aiming devices are under the hood near the headlamps. * 0 Headlamp aiming is done with the vehicle low beam lamps. The high beam lamps will be correctly aimed if the low beam lamps are aimed properly. If you believe your headlamps need horizontal (lefthight) adjustment, follow the horizontal aiming procedure. If you believe your headlamps need only vertical x-II ^.., - - I . , +.^ I .,-&:--I -:-:-IY I ) ~ U J U ~ C IGI 11, IUIIUVV I I U I IIY LI I C V G I L l b a t I 1-1 \ --l:..-L---L \Up/UUvvl all I 111 procedure. Adjustment screws can be turned with an E8 Torx@ socket or T i 5 Torx@screwdriver. 5-53