2007 GMC SIERRA CLASSIC tailgate

Keys............................................................ 115
Remote Keyless Entry System.................. 116
Remote Keyless Entry System
Operation............................................... 117
Doors and Locks........................................ 120
Door Locks................................................ 120
Power Door Locks..................................... 121
Delayed Locking........................................ 122
Programmable Automatic Door Locks........ 123
Rear Door Security Locks (Crew Cab)....... 126
Lockout Protection..................................... 126
Rear Doors............................................... 126
Tailgate..................................................... 127
Windows...................................................... 129
Manual Windows....................................... 129
Power Windows........................................ 130
Swing-Out Windows.................................. 131
Sliding Rear Window................................. 131
Sun Visors................................................ 131Theft-Deterrent Systems............................. 131
Content Theft-Deterrent............................. 131
Passlock
®.................................................. 133
Starting and Operating Your Vehicle......... 134
New Vehicle Break-In................................ 134
Ignition Positions....................................... 135
Retained Accessory Power (RAP)............. 137
Starting the Engine.................................... 137
Engine Coolant Heater.............................. 139
Automatic Transmission Operation............. 140
Tow/Haul Mode......................................... 147
Manual Transmission Operation................. 149
Four-Wheel Drive...................................... 153
Parking Brake........................................... 169
Shifting Into Park (P)
(Automatic Transmission)....................... 170
Shifting Out of Park (P)
(Automatic Transmission)....................... 172
Parking Over Things That Burn................. 173
Engine Exhaust......................................... 174
Running the Engine While Parked............. 175
Section 2 Features and Controls
113

To open a rear access
door from the outside,
rst 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 rst. Then, use
the handle located on
the inside of the rear
access door to open it.Crew Cabs
If your vehicle is a crew cab, you can open your
doors from the inside or outside. Your vehicle may
also have a feature which prevents children
from opening the rear doors. SeeRear Door
Security Locks (Crew Cab) on page 126for more
information.
Tailgate
You can open the tailgate by lifting up on its
handle while pulling the tailgate toward you.
To shut the tailgate, rmly push it upward until it
latches.
After you put the tailgate back up, pull it back
towards you to be sure it latches securely.
127

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 it points
straight out
and push the cable
clip forward.2. 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.
Reverse the above procedure to reinstall. Make
sure the tailgate is secure.
128

Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
To replace one of these bulbs, do the following:
1. Open the tailgate.Tailgate on page 127
for more information.
2. Remove the two
rear lamp assembly
screws near the
tailgate latch
and pull out the
lamp assembly.
3. Determine which of the following taillamp
assembly applies to your vehicle.4. Press the release tab, if the vehicle has one,
and turn the bulb socket counterclockwise to
remove it from the taillamp assembly.
5. Pull the old bulb straight out from the socket.
6. Press a new bulb into the socket and turn
the socket clockwise into the taillamp
assembly.
7. Reinstall the taillamp assembly.
A. Stoplamp/Taillamp
B. Turn Signal
C. Back-up Lamp
539

(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, body door
hinges, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, tailgate hinges,
tailgate linkage, tailgate handle pivot points,
latch bolt, fuel door hinge, locks, and folding seat
hardware. More frequent lubrication may be
required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.(h)Change automatic transmission uid and lter
if the vehicle Gross Vehicle Weight Rating
(GVWR) is over 8600 lbs or if the vehicle is mainly
driven under one or more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 502 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
624

Usage Fluid/Lubricant
Rear AxleSAE 75W-90 Synthetic Axle
Lubricant
(GM Part No. U.S. 12378261,
in Canada 10953455) meeting
GM Specication 9986115.
Manual
Transfer CaseManual Transmission Fluid
(GM Part No. U.S. 88861800,
in Canada 88861801).
Automatic
Transfer CaseAUTO-TRAK II Fluid
(GM Part No. U.S. 12378508,
in Canada 10953626).
Front Axle
Propshaft
Spline or
One-Piece
Propshaft
Spline
(Two-Wheel
Drive with Auto.
Trans.)Spline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879,
in Canada 10953511) or lubricant
meeting requirements of
GM 9985830.
Rear Driveline
Center SplineChassis Lubricant
(GM Part No. U.S. 12377985,
in Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.Usage Fluid/Lubricant
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Body Door
Hinge Pins,
Tailgate Hinge
and Linkage,
Folding Seats,
and Fuel Door
HingeMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Tailgate Handle
Pivot Points,
Hinges, Latch
Bolt, and
LinkageMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241,
in Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or Dielectric
Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
Weatherstrip
SqueaksSynthetic Grease with Teon,
Superlube
(GM Part No. U.S. 12371287,
in Canada 10953437).
631

Spare Tire (cont.)
Removing................................................ 566
Storing..................................................... 584
Specications, Capacities............................ 609
Speedometer............................................... 246
Starting Your Engine................................... 137
Steering...................................................... 367
Steering Wheel Controls, Audio................... 349
Steering Wheel, Tilt Wheel.......................... 213
Storage Areas
Center Console Storage Area................... 202
Cupholder(s)............................................ 202
Front Storage Area.................................. 202
Glove Box................................................ 202
Stuck in Sand, Mud, Ice, or Snow............... 406
Sun Visors.................................................. 131
Sunroof....................................................... 205
Swing-Out Windows.................................... 131
T
Tachometer................................................. 246
Tailgate....................................................... 127
Taillamps
Turn Signal, Stoplamps and Back-up
Lamps.................................................. 539Theft-Deterrent, Radio................................. 348
Theft-Deterrent Systems.............................. 131
Content Theft-Deterrent............................ 131
Passlock
®................................................ 133
Tilt Wheel.................................................... 213
Tires........................................................... 543
Aluminum or Chrome-Plated Wheels,
Cleaning............................................... 594
Buying New Tires..................................... 556
Chains..................................................... 562
Changing a Flat Tire................................ 564
Cleaning.................................................. 595
Different Size........................................... 558
Dual Tire Operation.................................. 552
If a Tire Goes Flat................................... 563
Ination - Tire Pressure............................ 551
Inspection and Rotation............................ 553
Installing the Spare Tire........................... 571
Removing the Flat Tire............................. 571
Removing the Spare Tire and Tools......... 566
Secondary Latch System ......................... 580
Spare Tire................................................ 588
Storing a Flat or Spare Tire and Tools..... 584
Tire Sidewall Labeling.............................. 544
Tire Terminology and Denitions............... 548
672