2002 GMC SIERRA tailgate

2-
2-1
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 Windows
2
-4 Keys
2
-6 Door Locks
2
-7 Keyless Entry System
2
-10 Rear Doors
2
-11 Tailgate
2
-12 Theft
2
-13 Content Theft-Deterrent
2
-15 Passlock

2-15 New Vehicle ªBreak-Inº
2
-16 Ignition Positions
2
-17 Starting Your Engine
2
-18 Engine Coolant Heater (If Equipped)
2
-19 Automatic Transmission Operation
2
-23 Parking Brake
2
-24 Shifting Into PARK (P)
2
-26 Shifting Out of PARK (P)
2
-27 Parking Over Things That Burn2
-27 Engine Exhaust
2
-28 Running Your Engine While You're Parked
2
-29 Locking Rear Axle
2
-29 All-Wheel Drive
2
-29 QUADRASTEER (4WS)
2
-33 Tilt Wheel
2
-33 Turn Signal/Multifunction Lever
2
-38 Exterior Lamps
2
-43 Interior Lamps
2
-45 Mirrors
2
-54 OnStar
System (If Equipped)
2
-57 HomeLink
Transmitter
2
-60 The Instrument Panel - Your
Information System
2
-62 Instrument Panel Cluster
2
-64 Warning Lights, Gages and Indicators
2
-77 Message Center
2
-82 Secondary Information Center (SIC)

2-10
Rear Doors
Your vehicle is equipped with rear access doors that
allow easier access to the rear area of the extended cab.
To open a rear access door
from the outside, first open
the front door. Then, use the
handle located on the front
edge of the rear access door
to open it.
You must fully close a rear access door before you can
close the front door.
To open a rear access door
from the inside, the front
door must be opened first.
Then, use the handle located
on the inside of the rear
access door to open it.
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 upward until it latches.
After you put the tailgate back up, pull it back towards
you to be sure it latches securely.

2-11 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.
To remove the tailgate, do the following:
1. Raise the tailgate
slightly and release
both retaining cable
clips. To release the
retaining cable clips,
lift the cable so that it
points straight out;
then, push the cable
clip forward.
2. With the tailgate at a
slightly upward angle,
pull back on the tailgate
at the right edge and
then move the tailgate to
the right to release the
left edge.
Reverse the procedure to reinstall the tailgate.
Make sure it is secure.

6-42 Pickup Box Identification/Fender
Marker Lamps
1. Remove the screws and lamp assembly.
2. Unplug the lamp assembly harness.
3. Gently pry the individual lamp from the lamp
housing.
4. Unplug the lamp.
5. Plug in a new lamp and snap it into the housing.
6. Reinstall the lamp housing.
Taillamps
1. Open the tailgate.
2. Remove the two rear lamp assembly screws near the
tailgate latch and pull out the lamp assembly.

6-43
A. Stoplamp
B. Turn Signal Lamp
C. Back
-Up Lamp
3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
housing.
4. Pull the old bulb straight out from the socket.
5. Press a new bulb into the socket and turn the socket
clockwise into the taillamp housing until it clicks.
6. Reinstall the rear lamp assembly and tighten
the screws.
7. Close the tailgate.

7-18
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See ªRecommended Fluids and Lubricantsº
in the Index.
Automatic Transmission Check
Check the transmission fluid level; add if needed. See
ªAutomatic Transmission Fluidº in the Index. A fluid
loss may indicate a problem. Check the system and
repair if needed.At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part D.
Body Lubrication Service
Lubricate all body door hinges, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
tailgate hinge, tailgate linkage, tailgate handle pivot
points, latch bolt, fuel door hinge, locks and folding seat
hardware. Part D tells you what to use. More frequent
lubrication may be required when exposed to a
corrosive environment.

7-25
USAGEFLUID/LUBRICANT
Hood HingesMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Body Door
Hinge Pins,
Tailgate Hinge
and Linkage,
Folding Seat and
Fuel Door HingeMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
USAGEFLUID/LUBRICANT
Tailgate Handle
Pivot Points,
Hinges, Latch
Bolt and LinkageMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM
Part No. 12345579 or equivalent).
Weatherstrip
SqueaksSynthetic Grease with
Teflon, Superlube
(GM Part
No. 12371287 or equivalent).