Page 263 of 470

No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver might require at least twice as
much light to see the same thing at night as a
20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the
day in bright sunshine you are wise to wear
sunglasses. Your eyes will have less trouble
adjusting to night. But if you are driving, do not
wear sunglasses at night. They might cut down on
glare from headlamps, but they also make a lot
of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even the
inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and ash
more than clean glass would, making the pupils
of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in
dim light — and are not even aware of it.
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Page 355 of 470

Headlamp Aiming
The visual optical headlamp aiming system has
been preset at the factory and should need
no further adjustment.
However, if the vehicle is damaged in an accident,
the aim of the headlamps may be affected and
adjustment may be necessary.
If oncoming vehicles ash their high beams at
you, this may mean the vertical aim of your
headlamps needs to be adjusted.
It is recommended that the vehicle is taken to your
dealer/retailer for service if the headlamps need
to be adjusted. It is possible however, to re-aim the
headlamps as described.
The vehicle should be properly prepared
as follows:
The vehicle should be placed so the
headlamps are 25 ft. (7.6 m) from a light
colored wall.
The vehicle must have all four tires on a level
surface which is level all the way to the wall.
The vehicle should be placed so it is
perpendicular to the wall or other at surface.
The vehicle should not have any snow, ice, or
mud on it.
The vehicle should be fully assembled and all
other work stopped while headlamp aiming is
being performed.
The vehicle should be normally loaded with a
full tank of fuel and one person or 160 lbs
(75 kg) sitting on the driver’s seat.
Tires should be properly in ated.
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.
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Page 356 of 470
To adjust the vertical aim:
1. Open the hood. SeeHood Release on
page 313for more information.
2. Locate the aim dot on the lens of the
low-beam headlamp.
3. Measure the distance from the ground to the
aim dot on the low-beam headlamp. Record
the distance.4. At the wall measure from the ground
upward (A) to the recorded distance
from Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall
the width of the vehicle at the height of the
mark in Step 4.
Notice:Do not cover a headlamp to improve
beam cut-off when aiming. Covering a
headlamp may cause excessive heat build-up
which may cause damage to the headlamp.
6. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being adjusted. This allows
only the beam of light from the headlamp
being adjusted to be seen on the at surface.
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Page 357 of 470
7. Locate the vertical headlamp aiming screws,
which are under the hood near each headlamp
assembly.
The adjustment screw can be turned with a
6 mm socket.
8. Turn the vertical aiming screw until
the headlamp beam is aimed to the
horizontal tape line. Turn it clockwise or
counterclockwise to raise or lower the angle
of the beam.9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal
tape line. The lamp on the left (A) shows
the correct headlamp aim. The lamp on the
right (B) shows the incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite
headlamp.
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Page 358 of 470
Bulb Replacement
For the type of bulb to use, seeReplacement
Bulbs on page 364.
For any bulb changing procedure not listed in this
section, contact your retailer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others could be
injured. Be sure to read and follow the
instructions on the bulb package.
Headlamps
A. Parking/Turn Signal Lamp
B. Low-beam Headlamp/Daytime Running
Lamp (DRL)
C. High-beam Headlamp
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Page 364 of 470

License Plate Lamp
To replace one of these bulbs, do the following:
1. Remove the two screws holding each of
the license plate lamps to the fascia.
2. Turn and pull the license plate lamp forward
through the fascia opening.
3. Turn the bulb socket counterclockwise and
pull the bulb straight out of the socket.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to reinstall the
license plate lamp.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up 3156
CHMSL W5W
Front Turn Signal/Parking 3157K
Headlamps
High-beam 9005 or HB3
Low-beam/DRL 9006 or HB4
Rear Turn Signal, Stoplamp and
Taillamp3057
For replacement bulbs not listed here, contact
your dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for
wear and cracking. SeeScheduled Maintenance
on page 420for more information.
Replacement blades come in different types and
are removed in different ways. For proper type and
length, seeNormal Maintenance Replacement
Parts on page 434.
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Page 462 of 470

Front Console Storage Area........................ 132
Fuel............................................................ 306
Additives.................................................. 307
California Fuel.......................................... 307
Filling a Portable Fuel Container.............. 311
Filling Your Tank...................................... 309
Fuels in Foreign Countries....................... 308
Gage....................................................... 181
Gasoline Octane...................................... 306
Gasoline Speci cations............................ 306
Low Warning Light................................... 181
Fuses
Fuses and Circuit Breakers...................... 409
Instrument Panel Fuse Block................... 410
Underhood Fuse Block............................. 411
Windshield Wiper..................................... 409
G
Gage
Engine Coolant Temperature.................... 174
Fuel......................................................... 181
Speedometer........................................... 163
Tachometer.............................................. 164
Gasoline
Octane..................................................... 306
Speci cations........................................... 306Gate Ajar Light............................................ 180
Glove Box................................................... 132
GM Mobility Reimbursement Program.......... 445
H
Hazard Warning Flashers............................ 142
Head Restraints............................................ 15
Headlamp
Aiming..................................................... 355
Headlamps.........................................149, 358
Bulb Replacement.................................... 358
Daytime Running Lamps.......................... 150
Flash-to-Pass........................................... 144
Front Turn Signal and Parking Lamps...... 361
Halogen Bulbs......................................... 358
High/Low Beam Changer ......................... 144
Heated Seats................................................ 11
Heater......................................................... 155
Height Adjuster, Driver Seat.......................... 10
Highbeam On Light..................................... 180
Highway Hypnosis....................................... 270
Hill and Mountain Roads............................. 270
Hood
Checking Things Under............................ 312
Release................................................... 313
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Horn............................................................ 142
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 25
Hydraulic Clutch.......................................... 331
I
Ignition Positions......................................... 109
Infants and Young Children, Restraints.......... 45
In ation - Tire Pressure............................... 374
Instrument Panel
Overview.................................................. 140
Instrument Panel (I/P)
Brightness................................................ 152
Cluster..................................................... 162
Interior Lamps............................................. 152
J
Jump Starting.............................................. 348
K
Keyless Entry System................................... 96
Keys............................................................. 95
L
Labeling, Tire Sidewall................................. 367
Lamps
Dome....................................................... 153
Footwell................................................... 153
Map ......................................................... 153
LATCH System
Child Restraints......................................... 55
License Plate Lamps................................... 364
Liftgate
Carbon Monoxide..................................... 103
Light
Airbag Readiness..................................... 165
Anti-Lock Brake System Warning............. 171
Battery Warning....................................... 169
Brake System Warning............................. 170
Change Engine Oil................................... 179
Daytime Running Lamps Indicator............ 180
Engine Coolant Temperature Warning....... 173
Gate Ajar................................................. 180
Highbeam On.......................................... 180
Low Coolant Warning............................... 174
Low Fuel Warning.................................... 181
Low Traction............................................ 173
Malfunction Indicator................................ 175
Oil Pressure............................................. 178
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