qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-25for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure
cap.
An Emission Control Service. (See footnote ².)
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote ².)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst, or sooner if ®lter is clogged).
An
Emission Control Service. (See footnote ².)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
33,000 Miles (55 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
6-10
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qInspect engine accessory drive belts (or every
30 months, whichever occurs ®rst).An Emission
Control Service.
qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-25for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure
cap.
An Emission Control Service. (See footnote ².)
qReplace spark plugs.An Emission Control Service.
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service.
qDrain, re®ll and bleed the brake system.
qInspect fuel tank, cap and lines for damage or leaks.
Inspect fuel cap gasket for any damage. Replace
parts as needed.
An Emission Control Service.
(See footnote ².)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst).An Emission Control Service.
(See footnote ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qInspect emission system hoses and replace as
necessary.
An Emission Control Service.
(See footnote ².)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
63,000 Miles (105 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
66,000 Miles (110 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Inspect passenger compartment
air ®lters.
qRotate tires. See
Tire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
6-13
81,000 Miles (135 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
84,000 Miles (140 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Inspect passenger compartment
air ®lters.
qRotate tires. See
Tire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
87,000 Miles (145 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
90,000 Miles (150 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Replace passenger compartment
air ®lters.
qInspect automatic transmission ¯uid hose
(or every 45 months, whichever occurs ®rst).qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qInspect engine accessory drive belts
(or every 30 months, whichever occurs ®rst).
An Emission Control Service.
qInspect fuel tank, cap and lines for damage or leaks.
Inspect fuel cap gasket for any damage. Replace
parts as needed.
An Emission Control Service.
(See footnote ².)
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service.
6-15
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote ².)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qInspect fuel tank, cap and lines for damage or leaks.
Inspect fuel cap gasket for any damage. Replace
parts as needed.
An Emission Control Service. (See
footnote ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst, or sooner if ®lter is clogged).
An
Emission Control Service. (See footnote ².)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
37,500 Miles (62 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
45,000 Miles (75 000 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qInspect engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An
Emission Control Service. (See footnote ².)
qIf Equipped: Inspect passenger compartment air
®lters.
qInspect automatic transmission ¯uid hose (or every
45 months, whichever occurs ®rst).
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
6-19
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service.
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qInspect fuel tank, cap and lines for damage or leaks.
Inspect fuel cap gasket for any damage. Replace
parts as needed.
An Emission Control Service.
(See footnote ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst.
An Emission Control Service.
(See footnote ².)
qInspect emission system hoses and replace as
necessary.An Emission Control Service.
(See footnote ².)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
qDrain, re®ll and bleed the brake system.
67,500 Miles (112 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
75,000 Miles (125 000 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qInspect engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service. (See footnote ².)
qIf Equipped: Inspect passenger compartment air
®lters.
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
6-21
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
82,500 Miles (137 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
90,000 Miles (150 000 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qIf Equipped: Replace passenger compartment air
®lters.qInspect engine accessory drive belts (or every
30 months, whichever occurs ®rst).
An Emission
Control Service.
qInspect automatic transmission ¯uid hose (or every
45 months, whichever occurs ®rst).
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-25for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure
cap.
An Emission Control Service. (See footnote ².)
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service.
6-22
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
·With an automatic transmission, the key should turn
to LOCK only when the shift lever is in PARK (P).
·With a manual transmission, the key should turn to
LOCK only if you push the key in farther, while
turning it towards LOCK.
On all vehicles, the key should come out only in LOCK.
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.
If your vehicle is four-wheel drive, be sure the
transfer case is not in NEUTRAL.
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.
6-27
Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-4
Getting Familiar with Off-Road Driving................4-18
Glove Box.....................................................2-33
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-4
Head Restraints............................................... 1-5
Headlamp High/Low-Beam Changer.................... 3-7
Headlamps....................................................5-51
Bulb Replacement.......................................5-51
Front Turn Signal and Parking Lamps.............5-53
Halogen Bulbs............................................5-51
Sidemarker Lamps.......................................5-53
Headlamps On Reminder.................................3-15
Highway Hypnosis...........................................4-37
Hill and Mountain Roads..................................4-38
Hitches..........................................................4-60
Hood
Checking Things Under................................5-10
Release.....................................................5-10
Hood Latch Operation Check............................6-24
Horn............................................................... 3-5How to Add Coolant to the Coolant
Recovery Tank............................................5-33
How to Add Coolant to the Radiator..................5-35
How to Add Fluid....................................5-22, 5-24
How to Check................................5-20, 5-23, 5-64
How to Check and Add Fluid............................5-25
How to Check Lubricant...................................5-48
How to Check Power Steering Fluid..................5-37
How to Inspect the Engine Air Cleaner/Filter.......5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydraulic Clutch.............................................5-24
Hydroplaning..................................................4-33
I
If No Steam Is Coming From Your Engine..........5-30
If Steam Is Coming From Your Engine...............5-29
If the Light Is Flashing.....................................3-34
If the Light Is On Steady.................................3-34
If You Are Caught in a Blizzard.........................4-42
If You Are Stuck in Sand, Mud, Ice or Snow.......4-44
If You Do Decide To Pull A Trailer.....................4-58
Ignition Positions.............................................2-12
Ignition Transmission Lock Check......................6-27
Infants and Young Children, Restraints...............1-31
In¯ation - Tire Pressure...................................5-63
6