automatic transmission GMC SIERRA DENALI 2005 Owner's Manual

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12.
Capacities and Specications
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 1.6 lbs 0.7 kg
Cooling System
Engine Driven Fan
Electric Engine Cooling Fan16.0 quarts
16.7 quarts15.1 L
15.8 L
Engine Oil with Filter 6.0 quarts 5.7 L
Fuel Tank 26.0 gallons 98.4 L
Wheel Nut Torque 140 ft lb 190Y
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual. Recheck uid level after lling.
Engine Specications
Engine VIN Code Transmission Spark Plug Gap
VORTEC™ 6000 N Automatic 0.040 inches (1.01 mm)
5-112

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage or
leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Vehicles without a lter restriction
indicator: Replace engine air cleaner
lter. SeeEngine Air Cleaner/Filter on
page 5-19.An Emission Control
Service.•••
Change automatic transmission uid
and lter (severe service).See
footnote (h).•••
Change automatic transmission uid
and lter (normal service).•
Inspect evaporative control system.An
Emission Control Service. See
footnotes † and (g).•••
6-6

(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chang, etc. Visually check constant
velocity joints, rubber boots and axle seals for leaks.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(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, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl, door
hinges, liftgate hinge, liftgate linkage, liftgate 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)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing and condition. Check
that the purge valve works properly (if equipped).
Replace as needed.
(h)Change automatic transmission uid and lter 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.
6-8

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 2-24if
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 2-24if 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.
6-10

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.
6-11

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM
Goodwrench
®oil meets all the
requirements for your vehicle. To
determine the proper viscosity for
your vehicle’s engine, seeEngine
Oil on page 5-14.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-24.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 89021184, in
Canada 89021186).
Usage Fluid/Lubricant
Automatic
TransmissionDEXRON®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Floor Shift
LinkageLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in
Canada 992723) or lubricant
meeting requirements of NLGI #2
Category LB or GC-LB.
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Front AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No.
U.S. 12378261, in
Canada 10953455) meeting
GM Specication 9986115.
Rear Axle
(Steerable)Synthetic Axle Lubricant; use only
GM Part No. U. S. 12378557, in
Canada 88901362.Do not add
friction modier.
6-12

Usage Fluid/Lubricant
Transfer CaseDEXRON®-III Automatic
Transmission Fluid. Look for
“Approved for the H-Specication”
on the label.
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.
Front Axle
Propshaft
SplineSpline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879, in
Canada 10953511) or lubricant
meeting requirements of GM
9985830.
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Usage Fluid/Lubricant
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
ConditioningDielectric 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).
6-13

Audio System(s) (cont.)
Radio with Cassette and CD.........................3-61
Rear Seat Audio (RSA)................................3-86
Setting the Time..........................................3-61
Theft-Deterrent Feature................................3-90
Understanding Radio Reception.....................3-92
XM™ Satellite Radio Antenna System............3-94
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-20
B
Battery..........................................................5-40
Run-Down Protection...................................3-18
Battery Warning Light......................................3-31
Before Leaving on a Long Trip.........................4-33
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-24
System Warning Light..................................3-32
Brakes..........................................................5-37
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16
Bulb Replacement...........................................5-49Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp......................................5-51
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50
Halogen Bulbs............................................5-49
Headlamps.................................................5-49
Replacement Bulbs......................................5-54
Taillamps....................................................5-53
Buying New Tires...........................................5-66
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-112
Carbon Monoxide...................2-11, 2-27, 4-36, 4-52
Care of
Safety Belts................................................5-95
Your Cassette Tape Player............................3-92
Your CD Player...........................................3-93
Your CDs ...................................................3-93
Cargo Lamp...................................................3-18
CD Changer...................................................3-87
Center Console Storage Area...........................2-41
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-51
Chains, Tire...................................................5-70
2

Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-36
Coolant......................................................5-24
Coolant Heater............................................2-19
Coolant Temperature Gage...........................3-34
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Fan Noise..................................................5-34
Oil .............................................................5-14
Overheated Protection Operating Mode...........5-28
Overheating................................................5-26
Starting......................................................2-18
Entry Lighting.................................................3-17
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-26
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-99
Fixed Mast Antenna........................................3-94
Flash-to-Pass................................................... 3-9Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-87
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-34
Windshield Washer......................................5-36
Fog Lamps....................................................3-16
Front Axle......................................................5-48
Front Reading Lamps......................................3-18
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-41
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-41
Fuses
Center Instrument Panel Fuse Block.............5-106
Fuses and Circuit Breakers.........................5-102
Instrument Panel Fuse Block.......................5-103
Underhood Fuse Block...............................5-107
Windshield Wiper.......................................5-102
5

G
Gage
Engine Coolant Temperature.........................3-34
Fuel..........................................................3-41
Oil Pressure...............................................3-39
Speedometer..............................................3-28
Tachometer.................................................3-28
Transmission Temperature.............................3-34
Voltmeter Gage...........................................3-31
Garage Door Opener.......................................2-36
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-41
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamps............................................3-13, 5-49
Automatic Headlamp System.........................3-15
Bulb Replacement.......................................5-49
Daytime Running Lamps...............................3-14
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50Headlamps (cont.)
Halogen Bulbs............................................5-49
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Heated Seats................................................... 1-3
Heater...........................................................3-20
Highbeam On Light.........................................3-40
Highway Hypnosis...........................................4-33
Hill and Mountain Roads..................................4-34
HomeLink
®Transmitter....................................2-36
HomeLink®Transmitter, Programming................2-37
Hood
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-13
I
Ignition Positions.............................................2-17
Infants and Young Children, Restraints...............1-29
Ination -- Tire Pressure..................................5-62
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-27
Overview..................................................... 3-4
6