Page 12 of 360
Service Station Guide
Oil Viscosity
Engine Oil
See Section 6
Premium Fuel Recommended
Use unleaded gas only,
91 Octane or higher.
See Section 6
Cooling System
See Section 5
Hood Release
See Section 6
Windshield Washer
Fluid
See Section 6
Spare Tire Pressure
See Section 5
Battery
See Section 6
For
a More
Detailed Look at
What's Under the Hood
See Section 6
Tire Pressure
See Section 6
V6 Engine Oil
Dipstick
See Section 6
V8 Engine Oil
Dipstick
See Section 6
Page 112 of 360

2-52 Headlamp Doors
The headlamp doors are designed to open when you turn
the headlamps on and close when you turn the
headlamps off. The headlamp doors can be opened
without turning on the headlamps by turning the
headlamps on, then turning the switch back to the
parking lamps position.
The headlamp doors should be open when driving in icy
or snowy conditions to prevent the doors from freezing
closed, and when washing the vehicle to help clean
the headlamps.
To open the headlamp doors manually:
1. Open the hood.
2. Remove the plastic cover from the retractor
motor knob.
3. Turn the retractor motor knob counterclockwise until
the headlamp door is fully open. The knob will get
harder to turn when the headlamp door is all the
way up.
4. Reinstall the plastic cover on the retractor
motor knob.
To manually close the headlamp doors, turn the lamps off
and turn the retractor motor knob clockwise. If the
headlamp doors aren't working properly, see your dealer.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.
For Canadian vehicles, a light sensor on top of the
instrument panel automatically turns the headlamps on,
so be sure it isn't covered.
The DRL system will not activate if the parking brake is
engaged prior to turning the ignition on.
The DRL system will make your front turn signal lamps
come on when:
The ignition is on,
the headlamp switch is OFF,
the parking brake is released, and
it is bright enough outside (on Canadian vehicles).
Page 257 of 360
6-9 Hood Release
To open the hood, first pull
the handle located inside
the vehicle below the
instrument panel on the
driver's side.
Then go to the front of the vehicle and pull up on the
hood release located at the center of your hood.
Lift the hood.
Page 343 of 360

7-24
USAGEFLUID/LUBRICANT
Floor
Shift LinkageLubriplate Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2
Category LB or GC
-LB.
Rear Axle
(Standard
Differential)SAE 75W-90 Synthetic Axle
Lubricant (GM Part No. 12378261)
or equivalent meeting GM
Specification 9986115.
Rear Axle
(Limited
-Slip
Differential)
SAE 75W-90 Synthetic Axle
Lubricant (GM Part No. 12378261)
or equivalent meeting GM
Specification 9986115. With a
complete drain and refill add
4 ounces (118 ml) of Limited
-Slip
Axle Lubricant Additive (GM Part
No. 1052358 or equivalent) where
required. See ªRear Axleº in
the Index.
USAGEFLUID/LUBRICANT
Hood Latch
Assembly,
Secondary Latch,
Pivots, Spring
Anchor and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2,
Category LB or GC
-LB.
Hood and
Door HingesMulti-Purpose Lubricant,
Superlube (GM Part
No. 12346241 or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM
Part No. 12345579 or equivalent).