It is recommended that the vehicle is taken to your
dealer for service if the headlamps need to be adjusted.
It is possible however, to re-aim the headlamps as
described.
The vehicle should:
.
Be placed so the headlamps are 25 ft. (7.6 m) from
a light colored wall.
.
Have all four tires on a level surface which is level
all the way to the wall.
.
Be placed so it is perpendicular to the wall.
.
Not have any snow, ice, or mud on it.
.
Be fully assembled and all other work stopped
while headlamp aiming is being performed.
.
Normally loaded with a full tank of fuel and one
person or 160 lbs (75 kg) sitting on the driver seat.
.
Have the tires properly inflated.
.
Have the spare tire is in its proper location in the
vehicle.
Headlamp aiming is done with the vehicle's low-beam
headlamps. The high-beam headlamps will be correctly
aimed if the low-beam headlamps are aimed properly.
To adjust the vertical aim:
1. Open the hood. See
Hood Release on page 6
‑
15
2. Locate the aim dot on the lens of the low
‐
beam
headlamp.
3. Record the distance from the ground to the aim dot
on the low
‐
beam headlamp.
6-61
Summary of Contents for 2010 GMC Sierra
Page 6: ...2 NOTES vi ...
Page 8: ...Instrument Panel Instrument Panel Base Uplevel Version 1 2 ...
Page 10: ...Instrument Panel Premium Version 1 4 ...
Page 60: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 2 18 ...
Page 138: ...2 NOTES 2 96 ...
Page 224: ...2 NOTES 3 86 ...
Page 376: ...2 NOTES 4 152 ...
Page 600: ...2 NOTES 6 140 ...
Page 618: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 18 ...
Page 619: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 19 ...
Page 620: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 20 ...
Page 642: ...2 NOTES 8 22 ...
Page 659: ... NOTES ...
Page 660: ... NOTES ...