2005 GMC SIERRA check engine

At the First 100, 1,000 and 6,000
Miles (160, 1 600 and 10 000km)
Check dual wheel nut torque. For proper torque, see
Capacities and Specications on page 5-130.
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 5-20for further details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 5-35for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your tires and make sure tires are
inated to the correct pressures. Do not forget to check
your spare tire. SeeTires on page 5-72for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to turn the spare tire.
If it moves, tighten it. SeeChanging a Flat Tire on
page 5-92.
6-11

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-48if
necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. 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, contact
your GM Goodwrench
®dealer for service.
Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-48if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.
3. With the engine off, turn the ignition to RUN, but do
not start the engine. Without applying the regular
brake, try to move the shift lever out of PARK (P)
with normal effort. If the shift lever moves out
of PARK (P), contact your GM Goodwrench
®dealer
for service.
6-12

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition to LOCK in each shift lever position.
The ignition should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic
Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the regular
brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-13

Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-67
Center Passenger Position, Safety Belts.............1-25
Chains, Tire...................................................5-90
Check
Engine Light...............................................3-44
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-119
Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-35
Lower Anchorages and Top Tethers
for Children (LATCH System).....................1-47
Older Children.............................................1-33
Securing a Child Restraint Designed
for the LATCH System..............................1-49
Securing a Child Restraint in a Center
Rear Seat Position...................................1-52
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-50
Securing a Child Restraint in the Center
Front Seat Position...................................1-53
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab)..................1-54
Securing a Child Restraint in the
Right Front Seat Position (Regular
and Extended Cab)..........................1-56, 1-62
Top Strap...................................................1-43
Top Strap Anchor Location............................1-45
Where to Put the Restraint...........................1-42Chime Level Adjustment.................................3-127
Cigarette Lighter.............................................3-20
Cleaning
Aluminum or Chrome-Plated Wheels.............5-117
Exterior Lamps/Lenses................................5-116
Fabric/Carpet............................................5-113
Finish Care...............................................5-116
Glass Surfaces..........................................5-115
Instrument Panel........................................5-115
Interior Plastic Components.........................5-115
Leather....................................................5-114
Tires........................................................5-118
Underbody Maintenance.............................5-119
Vinyl........................................................5-114
Washing Your Vehicle.................................5-116
Weatherstrips............................................5-115
Windshield and Wiper Blades......................5-117
Climate Control System...................................3-21
Dual..........................................................3-22
Dual Automatic............................................3-25
Outlet Adjustment........................................3-30
Clutch, Hydraulic.............................................5-34
Coinholder(s)..................................................2-70
Comfort Guides, Rear Safety Belt.....................1-30
Content Theft-Deterrent....................................2-19
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-42
Heater, Engine............................................2-25
Surge Tank Pressure Cap.............................5-37
3

E
Electrical System
Add-On Equipment.....................................5-121
Center Instrument Panel Fuse Block.............5-124
Fuses and Circuit Breakers.........................5-122
Instrument Panel Fuse Block.......................5-122
Power Windows and Other Power Options....5-122
Underhood Fuse Block...............................5-125
Windshield Wiper Fuses.............................5-121
Engine
Air Cleaner/Filter.........................................5-25
Battery.......................................................5-52
Check and Service Engine Soon Light............3-44
Coolant......................................................5-35
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-42
Engine Compartment Overview......................5-14
Exhaust.....................................................2-53
Fan Noise..................................................5-45
Oil .............................................................5-20
Overheated Protection Operating Mode...........5-39
Overheating................................................5-37
Starting......................................................2-23
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-32
F
Filter
Engine Air Cleaner......................................5-25
Finish Damage.............................................5-118
Fixed Mast Antenna.......................................3-127
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-91
Flat Tire, Changing.........................................5-92
Flat Tire, Storing...........................................5-109
Fluid
Automatic Transmission........................5-27, 5-30
Manual Transmission....................................5-33
Power Steering...........................................5-46
Windshield Washer......................................5-48
Fog Lamps....................................................3-16
Four-Wheel Drive....................................2-37, 5-58
Four-Wheel-Drive Light....................................3-48
Front Axle......................................................5-60
Front Reading Lamps......................................3-18
Front Storage Area.........................................2-71
Fuel............................................................... 5-6
Additives...................................................... 5-7
California Fuel.............................................. 5-7
E-85 (85% Ethanol)....................................... 5-8
Filling a Portable Fuel Container....................5-12
Filling Your Tank..........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage.........................................................3-49
Gasoline Octane........................................... 5-6
5

Fuel (cont.)
Gasoline Specications.................................. 5-7
Low Warning Light.......................................3-50
Fuses
Center Instrument Panel Fuse Block.............5-124
Fuses and Circuit Breakers.........................5-122
Instrument Panel Fuse Block.......................5-122
Underhood Fuse Block...............................5-125
Windshield Wiper.......................................5-121
G
Gage
Engine Coolant Temperature.........................3-42
Fuel..........................................................3-49
Oil Pressure...............................................3-47
Speedometer..............................................3-33
Tachometer.................................................3-33
Transmission Temperature.............................3-43
Voltmeter Gage...........................................3-38
Garage Door Opener.......................................2-66
Gasoline
Octane........................................................ 5-6
Specications............................................... 5-7
Glove Box.....................................................2-70
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamps............................................3-13, 5-63
Automatic Headlamp System.........................3-15
Bulb Replacement.......................................5-62
Daytime Running Lamps...............................3-14
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and
Daytime Running Lamps...........................5-64
Halogen Bulbs............................................5-62
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-14
Pickup Box Identication and Fender
Marker Lamps.........................................5-69
Roof Marker Lamps.....................................5-65
Heated Seats................................................... 1-5
Heater...................................................3-21, 3-22
Heater...........................................................3-25
Highbeam On Light.........................................3-48
Highway Hypnosis...........................................4-42
Hill and Mountain Roads..................................4-42
HomeLink
®Transmitter....................................2-66
HomeLink®Transmitter, Programming................2-67
Hood
Checking Things Under................................5-12
Release.....................................................5-13
6

Mirrors (cont.)
Outside Curb View Assist Mirrors...................2-63
Outside Heated Mirrors................................2-64
Outside Manual Mirrors................................2-60
Outside Power Camper-Type.........................2-62
Outside Power Foldaway Mirrors....................2-62
Outside Power Mirrors..................................2-62
Outside West Coast-Type Mirrors...................2-61
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-21
Noise Control System, Tampering......................5-61
Normal Maintenance Replacement Parts............6-17
O
Odometer......................................................3-33
Odometer, Trip...............................................3-33
Off-Road Recovery..........................................4-17
Oil
Engine.......................................................5-20
Pressure Gage............................................3-47
Older Children, Restraints................................1-33
Online Owner Center........................................ 7-3
OnStar
®System.............................................2-64
Operating Your All-Wheel-Drive Vehicle
Off Paved Roads.........................................4-20Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-30
Outside
Automatic Dimming Mirror.............................2-63
Camper-Type Mirrors....................................2-61
Convex Mirror.............................................2-64
Curb View Assist Mirrors..............................2-63
Heated Mirrors............................................2-64
Manual Mirrors............................................2-60
Power Foldaway Mirrors...............................2-62
Power Mirrors.............................................2-62
West Coast-Type Mirrors..............................2-61
Outside Power Camper-Type Mirror...................2-62
Overdrive Disable...........................................3-49
Overheated Engine Protection Operating Mode.....5-39
Owner Checks and Services.............................6-10
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-49
Shifting Out of............................................2-51
Parking
Brake........................................................2-48
Over Things That Burn.................................2-52
Parking Your Vehicle.......................................2-52
Passenger Airbag Status Indicator.....................3-36
Passenger Sensing System..............................1-76
9

Removing the Spare Tire and Tools...................5-93
Replacement Bulbs.........................................5-71
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking Your Restraint Systems...................1-82
Replacing Restraint System Parts
After a Crash..........................................1-82
Restraint Systems
Checking....................................................1-82
Replacing Parts...........................................1-82
Retained Accessory Power (RAP)......................2-23
Right Front Passenger Position, Safety Belts......1-25
Roadside
Assistance Program....................................... 7-5
Rocking Your Vehicle to Get it Out....................4-48
Running Your Engine While You Are Parked.......2-54
S
Safety Belt
Reminder Light............................................3-33
Safety Belts
Care of....................................................5-115
Center Passenger Position............................1-25
Driver Position............................................1-16
How to Wear Safety Belts Properly................1-16Safety Belts (cont.)
Questions and Answers About Safety Belts........1-15
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-30
Rear Seat Passengers.................................1-27
Right Front Passenger Position......................1-25
Safety Belt Extender....................................1-32
Safety Belt Use During Pregnancy.................1-25
Safety Belts Are for Everyone.......................1-11
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seatback Latches............................................. 1-8
Seats
Head Restraints............................................ 1-8
Heated Seats............................................... 1-5
Manual........................................................ 1-3
Memory.....................................................2-74
Power Lumbar.............................................. 1-5
Power Seats................................................. 1-4
Rear Seat Operation..............................1-9, 1-10
Reclining Seatbacks...................................... 1-6
Seatback Latches.......................................... 1-8
Secondary Latch System................................5-105
Securing a Child Restraint
Center Front Seat Position............................1-53
Center Rear Seat Position............................1-52
Designed for the LATCH System...................1-49
Rear Outside Seat Position...........................1-50
Right Front Seat Position (Crew Cab).............1-54
11