headlamp OLDSMOBILE ALERO 1999 User Guide

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6-31
To check the aim, the vehicle should be properly
prepared as follows:

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 lbs. (75 kg) on the driver's seat.

Close all doors.

Tires should be properly inflated.

Rock the vehicle to stabilize the suspension.
Start with the horizontal aim. The adjustment screws
can be turned with an E8 Torx socket or a
T15 Torx screwdriver.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
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6-32
Horizontal Aiming Vertical Aiming
1. Turn the horizontal aiming screw until the indicator
is lined up with zero.
2. Turn the vertical aiming screw until the level bubble
is lined up with zero.
Front Turn Signal and Parking Lamp
Bulb Replacement
1. Remove the headlamp assembly. Refer to the
removal procedure earlier in this section.
2. Twist the bulb assembly retainer and pull out
the bulb.
3. Unclip the bulb assembly from the wiring harness.
4. Reverse Steps 1 through 2 to replace the bulb
assembly. Be sure to properly align the bulb with the
locating feature in the assembly.
Center High-Mounted Stop Lamp
1. Open the trunk lid and locate the center
high
-mounted stop lamp on the inside of the lid.
2. Use a Phillips screwdriver to remove the
three screws.
3. Gently remove and replace the bulbs.
4. Reverse this procedure to reassemble the lamp.
For the type of bulb, seeªReplacement Bulbsºin
the Index.
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6-42 Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are not
needed. However, if you notice unusual tire wear or
your vehicle pulling one way or the other, the alignment
may need to be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum
wheels, which can sometimes be repaired). See your
dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load
-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts and wheel nuts
for replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See ªChanging a Flat Tireº in the Index for
more information.
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6-58
Fuse Usage
Mini
-Fuses
41) Ignition System
42) Back
-Up Lamps, Brake Transaxle
Shift Interlock
43) Horn
44) Powertrain Control Module
45) Parking Lamps
46) Rear Defog, Daytime Running
Lamps, Climate Control System
47) Canister Vent Valve, Exhaust
Oxygen Sensors
48) Fuel Pump, Injectors
49) Generator
50) Right
-Hand Headlamp
51) Left
-Hand Headlamp
52) Cooling Fan
53) HVAC Blower (Climate Control)
54) Not Used
55) Not Used
56) Fuse Puller for Mini Fuses
57) Not Used
Replacement Bulbs
Outside Lamps (Rear) Bulb
Back
-Up Lamps 921. . . . . . . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stop Lamp 912. . . . . . . . . . . .
Turn Signal Lamps 3157. . . . . . . . . . . . . . . . . . . . . . .
Stop/Taillamps 3057. . . . . . . . . . . . . . . . . . . . . . . . . .
Outside Lamps (Front) Bulb
Halogen Headlamps
-Low Beam 9006. . . . . . . . . . . .
Halogen Headlamps
-High Beam 9005. . . . . . . . . . . .
Parking/Turn Signal Lamps 3157NA. . . . . . . . . . . . . .
Side Marker Lamps 194. . . . . . . . . . . . . . . . . . . . . . .
Inside Lamps Bulb
Dome (Base) 561. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome (Uplevel) 212
-2 . . . . . . . . . . . . . . . . . . . . . . . . .
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9-2
Brake (Continued)
System Warning Light 2-56, 6-25 . . . . . . . . . . . . . . . . . . . .
Trailer 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock 2-29, 7-15 . . . . . . . . . . . . . . . . . .
Transaxle Shift Interlock Check 7-15 . . . . . . . . . . . . . . . . . .
Wear 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes, Anti-Lock 2-57, 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI 2-29, 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back-Up Lamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHMSL 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal Lamps 6-32 . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Turn Signal Lamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . .
Stoplamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillamp 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-59 . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-12, 2-30, 4-29 . . . . . . . . . . . . . . . . . . . .
Care of Your Compact Disc Player 3-24 . . . . . . . . . . . . . . . . .
Cassette Deck Service 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player 3-9, 3-13 . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-23 . . . . . . . . . . . . . . . . . . . . . . . .
CD Player 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Player Theft-Deterrent Feature 3-19 . . . . . . . . . . . . . . . . .
Center Console Storage Area 2-46 . . . . . . . . . . . . . . . . . . . . . .
Center High-Mounted Stoplamp Bulb Replacement 6-32 . . . .
Center Rear Passenger Position 1-35 . . . . . . . . . . . . . . . . . . . .
Certification Label 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chains, Safety 4
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains, Tire 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Oil Light 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Indicator Light 2-55 . . . . . . . . . . . . . . . . . . .
Check Engine Light 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-54 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-45 . . . . . . . . . . .
Securing in the Center Rear Seat Position 1-47 . . . . . . . . . .
Securing in the Right Front Seat Position 1-48 . . . . . . . . . .
Top Strap 1-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-53 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-44 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leather 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-48 . . . . . . . . . . . . . . . . . . . . . . . .
Special Fabric Problems 6-45 . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield and Wiper Blades 6-47 . . . . . . . . . . . . . . . . . . .
Climate Control System 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock, Setting the 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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9-4
Engine (Continued)
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-30 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-17, 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Light 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil, What Kind to Use 6-14 . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-7 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transaxle 2-25 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-to-Pass 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Following Distance with a Trailer 4-39 . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-53 . . . . . . . . . . . . . . . . . . . . . . .
Gages
Engine Coolant Temperature 2-60 . . . . . . . . . . . . . . . . . . . .
Fuel 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transaxle 2-22 . . . . . . . . . . . . . . . .
Glove Box 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Mobility Program 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Vehicle Care 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross Axle Weight Rating 4-33 . . . . . . . . . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating 4-33 . . . . . . . . . . . . . . . . . . . . . .
GVWR 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Restraints 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamp Aiming 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 2-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam Changer 2-34 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . .
Heating 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Beam Headlamps 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-24 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood
Checking Things Under 6
-7 . . . . . . . . . . . . . . . . . . . . . . . . .
Release 6-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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