1998 GMC SIERRA tailgate

Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and
the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2-2
2-
3
2-4 2-5
2-6
2-9
2-
10
2- 10
2-1 1
2-12
2- 14
2-15
2-18
2-2
I
2-25
2-26
2-29 Keys
Tailgate
Third Door
(If Equipped)
Door Locks
Keyless Entry System (If Equipped)
Theft
PasslockTM
New Vehicle ”Break-In”
Ignition Positions
Starting Your Gasoline Engine
Engine Coolant Heater (If Equipped) Automatic Transmission Operation
Manual Transmission Operation Four-wheel Drive
(If Equipped)
Parking Brake
Shifting Into Park
(P) (Automatic
Transmission Models
Only)
Shifting Out of Park (P)
(Automatic Transmission) 2-29
2-30
2-30
2-3 1
2-32
2-32
2-34
2-35
2-4
1
2-43
2-45
2-5
1
2-60
2-62
2-64 Parking
Your Vehicle (Manual Transmission
Models
Only)
Parking Over Things That Burn
Engine Exhaust
Running Your Engine While You’re Parked
(Automatic Transmission)
Locking Rear Axle (If Equipped)
Windows
Tilt Wheel (If Equipped)
Turn Signal/Multifunction Lever
Exterior Lamps
Interior Lamps Mirrors
Storage Compartments
Instrument Panel
Instrument Panel Cluster
Warning Lights, Gages and Indicators
ProCarManuals.com

Your vehicle has one
double-sided key for the
ignition and all door locks.
If you ever lose your keys, your dealer will be able to
assist you with obtaining new ones. Tailgate
You can open the tailgate by lifting up on its handle
while pulling the tailgate toward you.
To shut the tailgate, firmly push it away from you into
the latch.
After you put the tailgate back up, pull it back toward
you,
to be sure that it latches securely.
Tailgate Removal
The tailgate on your vehicle can be removed to allow for
different loading situations. Although the tailgate can be
removed without assistance, you may want someone to
assist you with the removal to avoid possible damage to
the vehicle.
NOTICE:
' Your vehicle has a number of new features that
can help prevent theft.
You can have a lot of
trouble getting into your vehicle if you ever lock
your key inside.
You may even have to damage
your vehicle to get in.
So be sure you have an
extra key.
~. _~- -- . ~. - ~
2-3
ProCarManuals.com

To remove the tailgate:
2.
Raise the tailgate
slightly and release both
retaining cable clips.
To
release the retaining
cable clips, pull the
retaining cable clip away
from the cable end. Lift
the cable
so it points
straight out and push the
cable clips forward.
With the tailgate at a
slight upward angle.
pull back on the tailgate
at the right edge
and
then move the tailgate
to the right
to release
the left edge.
Re.verse the above procedure
to reinsla
tailgate is secure. dl. Make sure t :he
Third Door (If Equipped)
Your vehicle may be equipped with a third door that
allows easier access
to the rear area of an extended cab.
To open the third door, first open the passenger’s side
front door. Then, use the handle located on the front
edge
of the third door to open it.
You must close and latch the third
door before you can
close the front passenger door.
2-4
ProCarManuals.com

4. Unplug the lamp at the connector.
5. Plug in a new lamp and snap it into the housing.
6. Reinstall the lamp housing.
Taillamps (Pickup Models)
1. Open the tailgate.
2. Remove the two
rear lamp assembly
screws near
the tailgate
latch
and pull out the
lamp assembly.
3. Remove the screws
from the bulb retainer
and take
it off the
lamp assembly.
c
6-48
ProCarManuals.com

4. Pull the old bulb straight
out
of the socket.
5. Put in a new bulb and push it straight in until it
is tight.
6. Replace the bulb retainer.
7. Replace the rear lamp assembly and tighten
the screws.
8. Close the tailgate.
Taillamps (Chassis Cab Models)
1. Using your hands, peel the rubber seal away from
the lens.
2. Lift the lens off the
lamp assembly.
3. Slide the socket out of the lamp assembly.
6-49
ProCarManuals.com

FuseKircuit Breaker
3
4
Usage
Courtesy Lamps, Cargo Lamp,
Glove Box Lamp, Dome/Reading
Lamps, Vanity Mirrors,
Power Mirrors
Instrument Cluster, DRL Relay,
Lamp Switch, Keyless Entry,
Low Coolant Module, Illuminated Entry Module,
DRAC (Diesel Engine)
Not Used
Cruise Control
Auxiliary Power Outlet
Crank
License Lamp, Parking Lamps,
Taillamps,
Roof Marker Lamps,
Tailgate Lamps, Front
Sidemarkers, Fog Lamp Relay,
Door Switch Illumination,
Fender Lamps, Headlamp Switch Illumination
FuseKircuit
Breaker
10
11
12
13
14
15
I6
17
18
19
Usage
Air Bag System
Wiper Motor, Washer Pump
A/C,
A/C Blower,
High Blower Relay
Power
Amp, Cigarette Lighter,
Door Lock Relay,
Power Lumbar Seat
4WD Indicator, Cluster, Comfort
Controls, Instrument Switches,
Radio Illumination,
Chime Module
DRL Relay,
Fog Lamp Relay
Front and Rear Turn Signals,
Back-up Lamps, BTSl Solenoid
Radio (Ignition)
4WAL/VCM, ABS. Cruise Control
Radio (Batterv)
6-73
ProCarManuals.com

Body Lubrication Service
Lubricate all fuel doors, body hood, body door hinges,
body door hinge
pins, hood latch assembly, pivots,
spring anchor, release pawl, tailgate hinges, and tailgate
handle pivot points, latch bolt, locks and folding seat
hardware. Part
D tells you what to use. More frequent
lubrication may be required when exposed to
a corrosive
environment.
Starter Switch Check
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
3. On automatic transmission vehicles, try to start the
engine
in each gear. The starter should work only in
PARK
(P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On manual transmission vehicles, put the shift lever
in NEUTRAL (N), push the clutch down halfway
and try to start the engine. The starter should work
only when the clutch is pushed down all the way
to
the floor. If the starter works when the clutch isn’t
pushed
all the way down, your vehicle needs service.
Brake-Transmission Shift Interlock (BTSI) Check
(Automatic Transmission)
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see “Parking
Brake” in the Index
if necessary) and the
regular brake.
NOTE: Do not use the accelerator pedal, and be
ready to
turn off the engine immediately if it starts.
When you are doing this check, the vehicle could
move suddenly. If
it does, you or others could be
injured. Follow the steps below.
I. Before you start, be sure you have enough room
around the vehicle. It should be parked
on a
level surfxe.
7-42
ProCarManuals.com

USAGE
Hood Latch
Assembly, Pivots, Spring
Anchor and
Release Pawl
Hood and Door
Hinges
Body Door
Hinge Pins,
Tailgate Hinge
and Linkage,
Folding Seat and
Fuel Door Hinge
FLUID/LUBRICANT
Lubriplate' Lubricant Aerosol
(GM Part
No. 12346293 or
equivalent)
or lubricant meeting
requirements
of NLGI # 2,
Category LB or GC-LB.
Multi-Pur ose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Multi-Pur
ose Lubricant,
Superlube
k (GM Part
No. I 234624 1 or equivalent).
~~ ~
USAGE
Tailgate Handle
Pivot Points,
Hinges, Latch
Bolt and Linkage
Weatherstrip
Conditioning Weatherstrip
Squeaks
FLUIDLUBRICANT
Multi-Pur ose Lubricant,
Superlube
kk (GM Part
No. 1234624 I or equivalent).
Dielectric Silicone Grease (GM
Part
No. I2345579 or equivalent).
Multi-Pur ose Lubricant,
Superlube
(GM Part
No. 1234624 I or equivalent).
&
7-48
ProCarManuals.com