2008 GMC SAVANA PASSENGER coolant temperature

Radiator Pressure Cap
The radiator pressure cap is located near the center of
the engine compartment. SeeEngine Compartment
Overview on page 5-14for more information on location.
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Engine Overheating
If your vehicle has the DURAMAX®Diesel engine, see
the DURAMAX®Diesel manual for more information.
You will find an engine coolant temperature gage on
your vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 3-35for more information.
If Steam Is Coming From Your Engine
{CAUTION:
Steam from an overheated engine can burn
you badly, even if you just open the hood. Stay
away from the engine if you see or hear steam
coming from it. Just turn it off and get
everyone away from the vehicle until it cools
down. Wait until there is no sign of steam or
coolant before you open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch re. You
or others could be badly burned. Stop your
engine if it overheats, and get out of the
vehicle until the engine is cool.
Notice:If your engine catches re because you
keep driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty.
5-26

4. Replace the cap and completely tighten it.
5. Then remove the cap again and look at the fluid
level on the dipstick.
The level should be at the COLD FILL mark. If
necessary, add only enough fluid to bring the level up to
the mark.
To prevent contamination of brake fluid, never check or
fill the power steering reservoir with the brake master
cylinder cover off.
What to Use
To determine what kind of fluid to use, see
Recommended Fluids and Lubricants on page 6-14.
Always use the proper fluid. Failure to use the proper
fluid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use. If you will be
operating your vehicle in an area where the temperature
may fall below freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
Open the cap with the
washer symbol on it.
Add washer fluid until the
tank is full. SeeEngine
Compartment Overview on
page 5-14for reservoir
location.
Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions for
adding water.
Do not mix water with ready-to-use washer uid.
Water can cause the solution to freeze and
damage your washer uid tank and other parts of
the washer system. Also, water does not clean as
well as washer uid.
Fill the washer uid tank only three-quarters full
when it is very cold. This allows for uid
expansion if freezing occurs, which could
damage the tank if it is completely full.
Do not use engine coolant (antifreeze) in your
windshield washer. It can damage the vehicle’s
windshield washer system and paint.
5-35

(f)Lubricate all key lock cylinders, hood hinges, hood
prop rod pivot, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, rear compartment
hinges, latches, locks, fuel door hinge, and any moving
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)Vehicles with Gross Vehicle Weight Rating (GVWR)
above 10,000 lbs (4 536 kg) only: Inspect shields for
damage or looseness. Adjust or replace as required.
This is a Noise Emission Control Service. Applicable to
vehicles sold in the United States and recommended
for vehicles sold in Canada.
(h)Change automatic transmission fluid and filter 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.(i)Drain, flush, and refill cooling system. This service can
be complex; you should have your dealer/retailer perform
this service. See Engine Coolant on page 5-23 for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap, and filler neck. Pressure test the cooling system and
pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)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.
(l)If you drive regularly under dusty conditions, inspect
the filter at each engine oil change.
(m)Check system for interference or binding and for
damaged or missing parts. Replace parts as needed.
Replace any components that have high effort or
excessive wear. Do not lubricate accelerator or cruise
control cables.
(n)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
6-9

Child Restraints (cont.)
Securing a Child Restraint in a
Rear Seat Position...................................1-46
Securing a Child Restraint in the
Right Front Seat Position..................1-48, 1-52
Where to Put the Restraint...........................1-38
Cigarette Lighter.............................................3-18
Cleaning
Aluminum Wheels......................................5-100
Exterior Lamps/Lenses.................................5-98
Fabric/Carpet..............................................5-96
Finish Care.................................................5-98
Instrument Panel, Vinyl, and
Other Plastic Surfaces..............................5-97
Interior.......................................................5-95
Tires........................................................5-101
Underbody Maintenance.............................5-101
Washing Your Vehicle...................................5-98
Weatherstrips..............................................5-97
Windshield and Wiper Blades........................5-99
Climate Control System...................................3-19
Outlet Adjustment........................................3-21
Rear Air Conditioning and Heating System......3-23
Rear Heating System...................................3-22
Clock, Setting.................................................3-65
Collision Damage Repair..................................7-11
Compass.......................................................3-47
Control of a Vehicle.......................................... 4-3Coolant
Engine Temperature Gage............................3-35
Heater, Engine............................................2-21
Cooling System..............................................5-28
Cruise Control................................................3-10
Cruise Control Light........................................3-40
Customer Assistance Information
Courtesy Transportation.................................. 7-9
Customer Assistance for
Text Telephone (TTY) Users........................ 7-4
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General Motors.....7-15
Reporting Safety Defects to the
Canadian Government..............................7-15
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15
D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-7
DIC Compass.................................................3-47
Disc, MP3......................................................3-77
3

Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-16
Dome Lamps.................................................3-16
Door
60/40 Swing-Out Side Door...........................2-10
Automatic Door Lock..................................... 2-8
Automatic Door Unlock.................................. 2-8
Cargo Door Relocking.................................... 2-7
Delayed Locking........................................... 2-7
Locks.......................................................... 2-6
Power Door Locks......................................... 2-6
Programmable Automatic Door Locks............... 2-7
Rear Door Security Locks............................... 2-8
Rear Doors.................................................2-12
Sliding Side Door.......................................... 2-9
Driver Information Center (DIC).........................3-42
DIC Operation and Displays..........................3-42
DIC Vehicle Customization............................3-58
DIC Warnings and Messages........................3-49
Driving
At Night.....................................................4-12
Before a Long Trip......................................4-14
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-14
Hill and Mountain Roads..............................4-15
In Rain and on Wet Roads...........................4-13
Rocking Your Vehicle to Get it Out.................4-20
Winter........................................................4-16
Dual Tire Operation.........................................5-61E
EDR .............................................................7-16
Electrical System
Add-On Equipment.....................................5-103
Engine Compartment Fuse Block.................5-106
Floor Console Fuse Block...........................5-104
Fuses and Circuit Breakers.........................5-104
Headlamp Wiring.......................................5-104
Windshield Wiper Fuses.............................5-104
Engine
Air Cleaner/Filter.........................................5-19
Check and Service Engine Soon Light............3-36
Coolant......................................................5-23
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-35
Drive Belt Routing.......................................6-17
Engine Compartment Overview......................5-14
Exhaust.....................................................2-30
Fan Noise..................................................5-34
Fuel Regulator............................................2-21
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheating................................................5-26
Running While Parked..................................2-31
Starting......................................................2-20
Entry/Exit Lighting...........................................3-17
Event Data Recorders.....................................7-17
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-13
4

F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-101
Fixed Mast Antenna........................................3-83
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-77
Flat Tire, Changing.........................................5-78
Flat Tire, Storing.............................................5-93
Fluid.............................................................5-20
Power Steering...........................................5-34
Windshield Washer......................................5-35
Front Axle......................................................5-45
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage.........................................................3-41
Gasoline Octane........................................... 5-6
Gasoline Specifications.................................. 5-6
Regulator...................................................2-21
Fuses
Engine Compartment Fuse Block.................5-106
Floor Console Fuse Block...........................5-104
Fuses and Circuit Breakers.........................5-104
Windshield Wiper.......................................5-104
G
Gage
Engine Coolant Temperature.........................3-35
Fuel..........................................................3-41
Oil Pressure...............................................3-38
Speedometer..............................................3-26
Voltmeter Gage...........................................3-32
Gasoline
Octane........................................................ 5-6
Specifications............................................... 5-6
Glass, Enhanced Technology............................2-16
GM Mobility Reimbursement Program.................. 7-6
H
Hazard Warning Flashers................................... 3-6
Headlamp Wiring...........................................5-104
Headlamps....................................................5-48
Bulb Replacement.......................................5-48
Daytime Running Lamps...............................3-15
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-50
Halogen Bulbs............................................5-48
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-14
Heater...........................................................3-19
5