2004 GMC ENVOY XUV coolant level

6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fan.
7. By this time, the coolant level inside the radiator
®ller neck may be lower. If the level is lower, add
more of the proper DEX-COOL
žcoolant mixture
through the ®ller neck until the level reaches
the base of the ®ller neck.
8. Then replace the pressure cap. At any time during
this procedure if coolant begins to ¯ow out of the
®ller neck, reinstall the pressure cap. Be sure
the pressure cap is hand-tight.
Engine Fan Noise
This vehicle has a clutched engine cooling fan. When
the clutch is engaged, the fan spins faster to provide
more air to cool the engine. In most everyday driving
conditions the clutch is not engaged. This improves fuel
economy and reduces fan noise. Under heavy vehicle
loading, trailer towing, and/or high outside temperatures,
the fan speed increases when the clutch engages. So
you may hear an increase in fan noise. This is
normal and should not be mistaken as the transmission
slipping or making extra shifts. It is merely the cooling
system functioning properly. The fan will slow down
when additional cooling is not required and the clutch
disengages.
You may also hear this fan noise when you start the
engine. It will go away as the fan clutch disengages.
5-34

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and ®lter. Reset oil life system. See
Engine Oil on
page 5-15.An Emission Control Service.··
Visually check for any leaks or damage.
See footnote (j).··
Inspect engine air cleaner ®lter. If necessary, replace ®lter. See
Engine Air
Cleaner/Filter on page 5-20.An Emission Control Service. See footnote ².··
Rotate tires and check in¯ation pressures and wear. See
Tires on page 5-52.··
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

(h)Change automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þIn heavy city traffic where the outside temperature
regularly reaches 90ÉF (32ÉC) or higher.
þIn hilly or mountainous terrain.
þWhen doing frequent trailer towing.
þUses such as found in taxi, police or delivery
service.
(i)Drain, ¯ush and re®ll cooling system. See Engine
Coolant on page 5-23for 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.
Owner Checks and Services
These owner checks and services should be performed
at the intervals speci®ed to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any ¯uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in
Recommended Fluids and Lubricants on page 6-13.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ®ll.
6-9

Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15for 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 5-23for 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 5-52for 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 5-71.
6-10

Charging System Light....................................3-35
Check
Engine Light...............................................3-38
Gages Warning Light...................................3-44
CHECK WASHER FLUID.................................3-57
Checking Brake Fluid......................................5-38
Checking Coolant............................................5-25
Checking Engine Oil........................................5-15
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-60
Chemical Paint Spotting...................................5-90
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-31
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-40
Older Children.............................................1-29
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-44
Securing a Child Restraint in the Center
Seat Position...........................................1-46
Securing a Child Restraint in the Right
Front Seat Position...................................1-47
Top Strap...................................................1-38
Top Strap Anchor Location............................1-40
Where to Put the Restraint...........................1-38Chime Level Adjustment.................................3-121
Cigarette Lighter.............................................3-19
Cleaning
Inside of Your Vehicle..................................5-84
Outside of Your Vehicle................................5-87
Underbody Maintenance...............................5-90
Video Screen............................................3-121
Weatherstrips..............................................5-87
Cleaning Aluminum Wheels..............................5-89
Cleaning Exterior Lamps/Lenses.......................5-88
Cleaning Fabric/Carpet....................................5-84
Cleaning Glass Surfaces..................................5-86
Cleaning Interior Plastic Components.................5-86
Cleaning Leather............................................5-86
Cleaning the Top of the Instrument Panel...........5-86
Cleaning the Windshield, Backglass and Wiper
Blades.......................................................5-88
Cleaning Tires................................................5-89
Cleaning Vinyl................................................5-85
CLEAR ROOF OBSTRUCTION.........................3-59
Climate Control System
Climate Controls Personalization....................3-29
Dual..........................................................3-20
Dual Automatic............................................3-23
Rear..........................................................3-28
CLOSE OR OPEN THE ROOF.........................3-59
CLOSE THE ROOF........................................3-59
CLOSE THE TAILGATE...................................3-60
3

Environmental Concerns..................................4-17
Erasing HomeLinkžButtons..............................2-50
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-17
Express Down Window....................................2-21
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-20
Finding a Program Type (PTY) Station
(RDS and XMŸ).........................3-66, 3-78, 3-93
Finding a Station............................3-64, 3-76, 3-91
Finish Care....................................................5-88
Finish Damage...............................................5-89
Fixed Mast Antenna.......................................3-121
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-70
Flat Tire, Changing.........................................5-71
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM Stereo....................................................3-119
Fog Lamps....................................................3-16
Following Distance..........................................4-63
Four-Wheel Drive....................................2-31, 5-46Front Axle......................................................5-47
Front Storage Area.........................................2-51
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-45
Fuel Information..............................................3-48
FUEL LEVEL LOW.........................................3-57
Fuses
Fuses and Circuit Breakers...........................5-93
Windshield Wiper.........................................5-92
G
Gage
Check Gages Warning Light..........................3-44
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-45
Oil Pressure...............................................3-41
Speedometer..............................................3-32
Tachometer.................................................3-33
Voltmeter Gage...........................................3-35
Garage Door Opener.......................................2-47
6