2004 GMC SIERRA oil level

Manual Transmission Fluid
When to Check
A good time to have it checked is when the engine oil is
changed. See your maintenance schedule to ®nd out
when to change your transmission ¯uid.
How to Check
Because this operation can be a little difficult, you may
choose to have this done at your GM dealership
service department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading.
Notice:Too much or too little ¯uid can damage
your transmission. Too much can mean that some
of the ¯uid could come out and fall on hot engine
part or exhaust system parts, starting a ®re.
Too little ¯uid could cause the transmission to
overheat. Be sure to get an accurate reading if you
check your transmission ¯uid.
Check the ¯uid level only when your engine is off, the
vehicle is parked on a level place and the transmission
is cool enough for you to rest your ®ngers on the
transmission case.Then, follow these steps:
1. Remove the ®ller plug.
2. Check that the lubricant level is up to the bottom of
the ®ller plug hole.
3. If the ¯uid level is good, install the plug and be sure
it is fully seated. If the ¯uid level is low, add more
¯uid as described in the next steps.5±speed for VORTECŸ 4300 V6 and
4800 V8 Engines Shown, Other Manual
Transmissions Similar
5-31

How to Check and Add Fluid
The proper ¯uid should be added if the level does not
reach the bottom of the diaphragm when it's in place in
the reservoir. See the instructions on the reservoir cap.
Engine Coolant
The cooling system in your vehicle is ®lled with
DEX-COOLžengine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs ®rst, if you add only
DEX-COOL
žextended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, see
Engine Overheating on
page 5-36.A 50/50 mixture of clean, drinkable water and
DEX-COOL
žcoolant will:
·Give freezing protection down to-34ÉF (-37ÉC).
·Give boiling protection up to 265ÉF (129ÉC).
·Protect against rust and corrosion.
·Help keep the proper engine temperature.
·Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOLžmay
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs ®rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
ž(silicate-free) coolant in your vehicle.
5-33

Cooling System
When you decide it's safe to lift the hood, here's what
you'll see:
A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Fan
If the coolant inside the coolant surge tank is boiling,
don't do anything else until it cools down. The vehicle
should be parked on a level surface. 8100 V8 Engines
All Other Engines
5-39

ApplicationCapacities
English Metric
Cooling System
After re®ll, the level must be rechecked. See ªCooling Systemº in the Index.
VORTECŸ 4300 V6 Automatic Transmission 14.0 quarts 13.0 L
VORTECŸ 4300 V6 Manual Transmission 15.0 quarts 14.0 L
VORTECŸ 4800 V8 Automatic Transmission 15.0 quarts 14.0 L
VORTECŸ 4800 V8 Manual Transmission 15.0 quarts 14.0 L
VORTECŸ 5300 V8 Automatic Transmission 14.0 quarts 13.0 L
VORTECŸ 5300 V8** Automatic Transmission 16.0 quarts 15.0 L
VORTECŸ 6000 V8 Automatic Transmission 13.0 quarts 12.0 L
VORTECŸ 6000 V8* Automatic Transmission 13.0 quarts 12.0 L
VORTECŸ 6000 V8 Manual Transmission 16.0 quarts 15.0 L
VORTECŸ 6000 V8* Manual Transmission 16.0 quarts 15.0 L
VORTECŸ 8100 V8 Manual Transmission 22.0 quarts 21.0 L
VORTECŸ 8100 V8 Automatic Transmission 21.0 quarts 20.0 L
* Vehicles equipped with the optional engine oil cooler.
** Vehicles equipped with the optional air conditioner.
Engine Oil With Filter
After re®ll, the level must be rechecked. Add enough engine oil so that the ¯uid is within the proper operating
range. See
Engine Oil on page 5-18.
VORTECŸ 4300 V6 (Vin W) 4.5 quarts 4.3 L
VORTECŸ 4800 V8 ( Vin V) 6.0 quarts 5.7 L
VORTECŸ 5300 V8 (Vin T) 6.0 quarts 5.7 L
VORTECŸ 6000 V8 (Vin U) 6.0 quarts 5.7 L
5-135

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts and recommended ¯uids and
lubricants as prescribed in this manual are
necessary to keep your vehicle in good working
condition. Any damage caused by failure to follow
scheduled maintenance may not be covered by
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even
affect the quality of the air we breathe. Improper ¯uid
levels or the wrong tire in¯ation can increase the level of
emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good condition,
be sure to maintain your vehicle properly.
6-2

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and ®lter. Reset oil life system. See
Engine Oil on
page 5-18.An Emission Control Service.··
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. See
Engine Air Cleaner/Filter on page 5-23.An Emission Control
Service. See footnote ².··
Rotate tires and check in¯ation pressures and wear. See
Tires on page 5-76.··
Inspect brake system.
See footnote (a).··
Check engine coolant and windshield washer ¯uid levels and add ¯uid as
needed.··
Perform any needed additional services. See ªAdditional Required Servicesº in
this section.··
Inspect suspension and steering components.
See footnote (b).·
Inspect engine cooling system.
See footnote (c).·
Inspect wiper blades.
See footnote (d).·
Inspect restraint system components.
See footnote (e).·
Lubricate body components.
See footnote (f).·
Check transmission ¯uid level and add ¯uid as needed.·
6-5

At the First 100, 1,000 and 6,000
Miles (160, 1 600 and 10 000km)
Check dual wheel nut torque. For proper torque, seeCapacities and Speci®cations on page 5-134.
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 on page 5-18for 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-COOLžcoolant mixture if necessary. SeeEngine
Coolant on page 5-33for 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 In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Do not forget to check
your spare tire. See
Tires on page 5-76for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to rotate or turn
the spare tire. If it moves, tighten it. See
Changing a
Flat Tire on page 5-96.
6-11

Bulb Replacement (cont.)
Roof Marker Lamps.....................................5-67
Taillamps....................................................5-71
Buying New Tires...........................................5-89
C
California Fuel.................................................. 5-5
Canada........................................................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations..........................5-134
Car Washes for QUADRASTEERŸ Equipped
Vehicles.....................................................4-16
Carbon Monoxide...................4-47, 4-70, 2-14, 2-53
Care of
Safety Belts..............................................5-119
Your Cassette Tape Player..........................3-129
Your CD and DVD Player...........................3-131
Your CDs and DVDs..................................3-130
Cargo Lamp...................................................3-18
CARGO LAMP ON.........................................3-67
Cassette Tape Messages.................................3-98
CD Adapter Kits.............................................3-99
CD Messages.............................3-87, 3-101, 3-115
Center Console Storage Area...........................2-67
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp...............................................5-69
Center Instrument Panel Fuse Block................5-128Center Passenger Position, Safety Belts.............1-25
Chains, Tires..................................................5-94
CHANGE ENGINE OIL....................................3-68
Check
Engine Light...............................................3-49
Check Engine Light.........................................3-49
CHECK OIL LEVEL.........................................3-67
CHECK WASHER FLUID.................................3-67
Checking Brake Fluid......................................5-49
Checking Coolant............................................5-35
Checking Engine Oil........................................5-18
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-87
Chemical Paint Spotting.................................5-123
Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-35
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-48
Older Children.............................................1-33
Securing a Child Restraint Designed
for the LATCH System......................1-50, 1-51
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-58
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-55
Securing a Child Restraint in the Center Front
Seat Position...........................................1-60
Top Strap...................................................1-43
3