Buick 2003 Regal Specifications Page 255

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Headlamp Aiming
Your vehicle has a headlamp system equipped with
horizontal and vertical aim indicators. The aim has been
pre-set at the factory and should need no further
adjustment. This is true even though your vertical and
horizontal aim indicators may not fall exactly on
the
“0
(zero) marks on their scales.
If
your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment may be necessary
if
it
is
difficult to see lane markers (for horizontal
aim), or
if
oncoming drivers flash their high beams at
you (for vertical aim). If you believe your headlamps
need to be re-aimed, we recommend that you take it to
your dealer for service; however, it is possible for
you to re-aim your headlamps as described in the
following procedure.
Notice:
To
make sure your headlamps are aimed
properly, read all the instructions before beginning.
Failure to
follow
these instructions could cause
damage to headlamp parts.
To check the aim, the vehicle should be properly
prepared as follows:
e
e
e
e
The headlamps must be off for one hour prior to
aiming and must remain
off
during this procedure.
The vehicle must have all four tires on a perfectly
level surface.
If necessary, pads may be used on an uneven
surface.
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.
There should not be any cargo or loading of
the vehicle, except it should have a full tank of fuel
and one person or
160
Ibs
(75
kg) on the
driver’s seat.
Close all doors.
Tires should be properly inflated.
Rock the vehicle to stabilize the suspension.
5-50
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