2007 GMC SIERRA tire pressure

{CAUTION:
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes, brands, or types (radial
and bias-belted tires), the vehicle may not
handle properly, and you could have a
crash. Using tires of different sizes,
brands or types may also cause damage
to your vehicle. Be sure to use the same
size, brand, and type tires on all wheels.
Your vehicle may have a different size
spare than the road tires (those originally
installed on your vehicle). When new, your
vehicle included a spare tire and wheel
assembly with a similar overall diameter
as your vehicle’s road tires and wheels,
so it is all right to drive on it. Because
this spare was developed for use on your
vehicle, it will not affect vehicle handling.
{CAUTION:
If you use bias-ply tires on your vehicle,
the wheel rim anges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make
sure they are the same size, load range, speed
rating, and construction type (radial and
bias-belted tires) as your vehicle’s original tires.
Vehicles that have a tire pressure monitoring
system may give an inaccurate low-pressure
warning if non-TPC spec rated tires are installed
on your vehicle. Non-TPC Spec rated tires
may give a low-pressure warning that is higher or
lower than the proper warning level you would
get with TPC Spec rated tires. SeeTire Pressure
Monitor System on page 561.
569

A. Wing Nut
Retaining
Tool Kit
B. Tool KitC. Wheel Blocks
D. Jack
E. Wing Nut
Retaining Jack
1. Put the tools in the tool bag and place them in
the retaining bracket.
If your vehicle has a cover replace the cover.
2. Tighten down the wing nut.3. Assemble the wheel blocks and jack together
with the wing nut and retaining hook.
If you have the Regular Cab, the wheel blocks
must be placed straight up and down on the
top of the jack.
4. Position the jack in the mounting bracket.
Position the holes in the base of the jack
onto the pin in the mounting bracket.
5. Return them to their original location in the
vehicle. For more information, refer to
Removing the Spare Tire and Tools on
page 578for more information.Spare Tire
Your vehicle may or may not have a spare tire
depending on the model. A spare tire may lose air
over time, so check its ination pressure
regularly. SeeInation - Tire Pressure on
page 559andLoading Your Vehicle on page 425
for information regarding proper tire ination
and loading your vehicle. For instruction on how to
remove, install or store a spare tire, see
Removing the Flat Tire and Installing the Spare
Tire on page 582andStoring a Flat or Spare Tire
and Tools on page 592.
Extended Cab
596

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil (Gasoline Engine) on page 500.
Reset oil life system. SeeEngine Oil Life System on page 503.An Emission
Control Service.••
Allison Transmission
®only: Replace external transmission lter at the rst
maintenance service performed on the vehicle.
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter or change indicator (if equipped). If necessary,
replace lter. SeeEngine Air Cleaner/Filter (Gasoline Engines) on page 505.
See footnote (p).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 565and “Tire Wear Inspection” inAt Least Once a Month on
page 632.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
625

At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil (Gasoline Engine)
on page 500for further details.
Notice:It is important to check the engine oil
regularly and keep it at the proper level.
Failure to keep the engine oil at the proper
level can cause damage to the engine not
covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. See
Engine Coolant on page 513for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in
the windshield washer uid reservoir and add the
proper uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure
they are inated to the correct pressures. Do not
forget to check the spare tire. SeeInation - Tire
Pressure on page 559. Check to make sure the
spare tire is stored securely. SeeChanging a Flat
Tire on page 576.
Tire Wear Inspection
Tire rotation may be required for high mileage
highway drivers prior to the Engine Oil Life System
service notication. Check the tires for wear
and, if necessary, rotate the tires. SeeTire
Inspection and Rotation on page 565.
632

Event Data Recorders (EDR)...................... 656
Exit Lighting................................................ 226
Extender, Safety Belt..................................... 44
Exterior Lamps............................................ 221
F
Filter
Engine Air Cleaner................................... 505
Finish Damage............................................ 605
Fixed Mast Antenna.................................... 371
Flashers, Hazard Warning........................... 211
Flash-to-Pass.............................................. 214
Flat Tire...................................................... 576
Flat Tire, Changing...................................... 576
Flat Tire, Storing......................................... 592
Fluid
Automatic Transmission............................ 508
Power Steering........................................ 526
Windshield Washer.................................. 527
Fog Lamp
Fog .......................................................... 224
Fog Lamp Light........................................... 265
Four-Wheel Drive...............................147, 539
Four-Wheel-Drive Light................................ 265
Front Axle................................................... 541Fuel............................................................ 488
Additives.................................................. 490
California Fuel.......................................... 489
E85 (85% Ethanol)................................... 491
Filling a Portable Fuel Container.............. 495
Filling Your Tank...................................... 493
Fuels in Foreign Countries....................... 492
Gage....................................................... 266
Gasoline Octane...................................... 489
Gasoline Specications............................ 489
Low Warning Light................................... 267
Fuses
Center Instrument Panel Fuse Block........ 611
Fuses and Circuit Breakers...................... 608
Instrument Panel Fuse Block................... 609
Underhood Fuse Block............................. 612
Windshield Wiper..................................... 608
G
Gage
Engine Coolant Temperature.................... 258
Fuel......................................................... 266
Oil Pressure............................................. 263
Speedometer........................................... 248
670

Gage (cont.)
Tachometer.............................................. 248
Voltmeter Gage........................................ 255
Garage Door Opener................................... 185
Gasoline
Octane..................................................... 489
Specications........................................... 489
Glove Box................................................... 196
GM Mobility Reimbursement Program.......... 649
H
Hazard Warning Flashers............................ 211
Head Restraints............................................ 18
Headlamps.................................................. 544
Bulb Replacement.................................... 543
Daytime Running Lamps.......................... 222
Flash-to-Pass........................................... 214
Halogen Bulbs......................................... 544
High/Low Beam Changer......................... 214
On Reminder........................................... 222
Pickup Box Identication and Fender
Marker Lamps...................................... 546
Heated Seats................................................ 12
Heater................................................234, 237
Heater......................................................... 238Highbeam On Light..................................... 265
Highway Hypnosis....................................... 415
Hill and Mountain Roads............................. 416
Hood
Checking Things Under............................ 496
Release................................................... 497
Horn............................................................ 211
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 27
I
Ignition Positions......................................... 133
Infants and Young Children, Restraints.......... 48
Ination - Tire Pressure............................... 559
Instrument Panel
Overview.........................................206, 209
Storage Area............................................ 197
Instrument Panel (I/P)
Brightness................................................ 225
Cluster..................................................... 247
J
Jump Starting.............................................. 532
671

K
Keyless Entry System................................. 110
Keys........................................................... 109
L
Labeling, Tire Sidewall................................. 551
Lamps
Auxiliary Roof Mounted Lamp.................. 225
Cargo...................................................... 227
Dome....................................................... 226
Dome Lamp Override............................... 226
Exterior.................................................... 221
Puddle..................................................... 224
Reading................................................... 226
LATCH System
Child Restraints......................................... 58
Latches, Seatback......................................... 19
License Plate Lamps................................... 548
Light
Airbag Off................................................ 250
Airbag Readiness..................................... 250
Anti-Lock Brake System Warning............. 257
Brake System Warning............................. 256
Charging System..................................... 254Light (cont.)
Cruise Control.......................................... 265
Fog Lamp................................................ 265
Four-Wheel-Drive..................................... 265
Highbeam On.......................................... 265
Low Fuel Warning.................................... 267
Malfunction Indicator................................ 260
Oil Pressure............................................. 264
Passenger Airbag Status Indicator............ 252
Passenger Safety Belt Reminder.............. 249
Safety Belt Reminder............................... 249
Security................................................... 264
StabiliTrak
®Indicator................................ 258
Tire Pressure........................................... 259
Tow/Haul Mode........................................ 266
Lighting
Entry........................................................ 226
Exit.......................................................... 226
Loading Your Vehicle................................... 425
Locking Rear Axle....................................... 381
Lockout Protection....................................... 120
Locks
Delayed Locking...................................... 119
Door........................................................ 118
Lockout Protection................................... 120
672

Spare Tire................................................... 596
Installing.................................................. 582
Removing................................................ 578
Storing..................................................... 592
Specications, Capacities............................ 616
Speedometer............................................... 248
StabiliTrak
®System..................................... 381
StabiliTrak®Indicator Light........................... 258
Starting Your Engine................................... 134
Steering...................................................... 385
Steering Wheel Controls, Audio................... 368
Steering Wheel, Tilt Wheel.......................... 212
Storage Areas............................................. 196
Cargo Management System..................... 199
Center Console Storage Area................... 197
Cupholder(s)............................................ 196
Glove Box................................................ 196
Instrument Panel Storage Area................. 197
Luggage Carrier....................................... 198
Rear Seat Armrest................................... 199
Stuck in Sand, Mud, Ice, or Snow............... 422
Sun Visors.................................................. 127
Sunroof....................................................... 200
System Identication, Universal Home
Remote System....................................... 184
T
Tachometer................................................. 248
Tailgate....................................................... 122
Taillamps
Turn Signal, Stoplamps and Back-up
Lamps.................................................. 546
Theft-Deterrent, Radio................................. 368
Theft-Deterrent Systems.............................. 127
Content Theft-Deterrent............................ 128
PASS-Key
®III+........................................ 129
PASS-Key®III+ Operation........................ 130
Tilt Wheel.................................................... 212
Time, Setting............................................... 301
Tire
Pressure Light.......................................... 259
Tires........................................................... 550
Aluminum or Chrome-Plated Wheels,
Cleaning............................................... 603
Buying New Tires..................................... 568
Chains..................................................... 574
Changing a Flat Tire................................ 576
Cleaning.................................................. 604
Different Size........................................... 570
Dual Tire Operation.................................. 560
678