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232 Vehicle Care
6. Start the engine and let it rununtil the upper radiator hose
can be felt getting hot. Watch
out for the engine cooling fan.
7. By this time, the coolant level inside the radiator filler neck
may be lower. If the level is
lower, add more of the proper
DEX-COOL coolant mixture
through the filler neck until the
level reaches the base of the
filler neck.
8. Replace the pressure cap. At any time during this procedure
if coolant begins to flow out of
the filler neck, reinstall the
pressure cap.
Caution
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 the vehicle has a diesel engine,
see the Duramax diesel
supplement.
The vehicle has an indicator to warn
of engine overheating.
There is an engine coolant
temperature gauge on the vehicle's
instrument cluster. See Engine
Coolant Temperature Gauge 099.
If the decision is made not to lift the
hood when this warning appears,
but instead get service help right
away, see Roadside Assistance
Program 0319.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface. Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fan
should be running. If it is not, do not
continue to run the engine and have
the vehicle serviced.
See if the engine cooling fan speed
increases when idle speed is
doubled by pushing the accelerator
pedal down. If it does not, the
vehicle needs service. Turn off the
engine.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
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Vehicle Care 233
If Steam is Coming from the
Engine Compartment
{Warning
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 the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer. See “Driving on
Grades” underTrailer Towing
0 208.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral) and let the
engine idle. If the engine coolant temperature
gauge is no longer in the overheat
zone or an overheat warning no
longer displays, the vehicle can be
driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a
safe vehicle distance from the
vehicle in front. If the warning does
not come back on, continue to drive
normally and have the cooling
system checked for proper fill and
function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam,
push down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
three minutes while parked. If the
warning is still on, turn off the
engine until it cools down.
If the decision is made not to lift the
hood, get service help right away.
GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
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Vehicle Care 235
What to UseCaution
Use of the incorrect fluid may
damage the vehicle and the
damages may not be covered by
the vehicle warranty. Always use
the correct fluid listed in
Recommended Fluids and
Lubricants0308.
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants 0308. Always use the
proper fluid. Failure to use the
proper fluid can cause leaks and
damage hoses and seals.
Washer Fluid
What to Use
When the vehicle needs windshield
washer fluid, be sure to read the
manufacturer's instructions before
use. If operating the 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. See
Engine
Compartment Overview 0220 for
reservoir location.
Caution
. Do not use washer fluid that
contains any type of water
repellent coating. This can
cause the wiper blades to
chatter or skip.
(Continued)
Caution (Continued)
.Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
. Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of the
washer system.
. When using concentrated
washer fluid, follow the
manufacturer instructions for
adding water.
. Fill the washer fluid tank
only three-quarters full when
it is very cold. This allows
for fluid expansion if
freezing occurs, which could
damage the tank if it is
completely full.
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260 Vehicle Care
Belt:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
0 262.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
0 173.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0173.
GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0173. Intended Outboard Sidewall
:
The side of an asymmetrical tire
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.
Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:The
load rating for a tire at the
maximum permissible inflation
pressure for that tire.
GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
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Service and Maintenance 301
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
SeeEngine Oil Life System 0223.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0268.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0221 and
Engine Oil Life System 0223. .
Check engine coolant level. See
Engine Coolant 0229.
. Check windshield washer fluid
level. See Washer Fluid 0235.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0290. Replace worn or
damaged wiper blades. See
Wiper Blade Replacement
0 241.
. Check tire inflation pressures.
See Tire Pressure 0262.
. Inspect tire wear. See Tire
Inspection 0267.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 227.
. Inspect brake system. See
Exterior Care 0290. .
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0290.
. Check restraint system
components. See Safety System
Check 055.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0290.
. Check starter switch. See Starter
Switch Check 0240.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0240.
GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
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308 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
This maintenance section applies to vehicles with a gasoline engine. If the vehicle has a diesel engine, see the
maintenance schedule section in the Duramax diesel supplement.
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Chassis Lubrication, Parking Brake Cable Guides Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0229.
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine Oil
0 221.
Front Wheel Bearings Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. 1051344, in Canada 993037).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819).
Key Lock Cylinders, Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).
Power Steering System GM Power Steering Fluid (GM Part No. 19329450, in Canada 89021186).
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Index 341
Climate Control Systems . . . . . . . 160Air Conditioning . . . . . . . . . . . . . . 160
Heating . . . . . . . . . . . . . . . . . . . . . . . 160
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Rear Heating System . . . . . . . . . 162
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cluster, Instrument . . . . . . . . . . . . . . 96
Collision Damage Repair . . . . . . . 322
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 86
Compass . . . . . . . . . . . . . . . . . . . . . . . . 91
Messages . . . . . . . . . . . . . . . . . . . . .114
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 332
Control Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 192
Control of a Vehicle . . . . . . . . . . . . . 168
Convex Mirrors . . . . . . . . . . . . . . . . . . 36
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 229
Engine Temperature Gauge . . . . 99
Cooling . . . . . . . . . . . . . . . . . . . . 160, 162
Cooling System . . . . . . . . . . . . . . . . . 228 Engine Messages . . . . . . . . . . . . .114
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 321
Cruise Control . . . . . . . . . . . . . . . . . . 194 Cruise Control (cont'd)
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Customer Assistance . . . . . . . . . . . 318 Offices . . . . . . . . . . . . . . . . . . . . . . . . 317
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 318
Customer Information Service PublicationsOrdering Information . . . . . . . . 324
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 315
D
Damage Repair, Collision . . . . . . . 322
Danger, Warning, and Caution . . . . 3
Data CollectionInfotainment System . . . . . . . . . . 328
OnStar . . . . . . . . . . . . . . . . . . . . . . . 327
Data Recorders, Event . . . . . . . . . 327
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 127
Defensive Driving . . . . . . . . . . . . . . . 167
Delayed Locking . . . . . . . . . . . . . . . . . 30
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 147
Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 333
Distracted Driving . . . . . . . . . . . . . . . 167
Dome Lamps . . . . . . . . . . . . . . . . . . . 130 Door
Ajar Messages . . . . . . . . . . . . . . . .114
Cargo Door Relocking . . . . . . . . . . 30
Delayed Locking . . . . . . . . . . . . . . . . 30
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Power Locks . . . . . . . . . . . . . . . . . . . . 30
Rear Doors . . . . . . . . . . . . . . . . . . . . . 33
Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Sliding . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Drive Belt Routing, Engine . . . . . . 314
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 109
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 205
Defensive . . . . . . . . . . . . . . . . . . . . . 167
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 168
For Better Fuel Economy . . . . . . . 22
Hill and Mountain Roads . . . . . . 171
If the Vehicle is Stuck . . . . . . . . . 173
Loss of Control . . . . . . . . . . . . . . . 169
Off-Road Recovery . . . . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . 173
Wet Roads . . . . . . . . . . . . . . . . . . . 170
Winter . . . . . . . . . . . . . . . . . . . . . . . . 171
Dual Tire Rotation . . . . . . . . . . . . . . . . . . . . . . 269
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342 Index
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 202
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 214
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 252
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 247
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 330
Engine Air Cleaner/Filter . . . . . . . . . . . . . 227
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 103
Compartment Overview . . . . . . . 220
Coolant . . . . . . . . . . . . . . . . . . . . . . . 229
Coolant Heater . . . . . . . . . . . . . . . 181
Coolant Temperature Gauge . . . . 99
Cooling System . . . . . . . . . . . . . . . 228
Cooling System Messages . . . .114
Drive Belt Routing . . . . . . . . . . . . 314
Exhaust . . . . . . . . . . . . . . . . . . . . . . 185
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . 223
Oil Messages . . . . . . . . . . . . . . . . . .115
Oil Pressure Gauge . . . . . . . . . . . . 98 Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . 232
Power Messages . . . . . . . . . . . . . .115
Running While Parked . . . . . . . . 185
Starting . . . . . . . . . . . . . . . . . . . . . . . 179
Enhanced Technology Glass . . . . 39
Entry/Exit Lighting . . . . . . . . . . . . . . 131
Equipment, Towing . . . . . . . . . . . . . 212
Event Data Recorders . . . . . . . . . . 327
Extender, Safety Belt . . . . . . . . . . . . 54
Exterior Lamp Controls . . . . . . . . . 126
Exterior Lamps Off Reminder . . . 127
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . . . 234
Fast Idle System . . . . . . . . . . . . . . . . 180
Filter, Engine Air Cleaner . . . . . . . . . . . 227
Fixed Mast Antenna . . . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 127
Flashers, Hazard Warning . . . . . . 129
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 275 Changing . . . . . . . . . . . . . . . . . . . . . 277
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 298 Fluid
Automatic Transmission . . . . . . 224
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 236
Power Steering . . . . . . . . . . . . . . . 234
Washer . . . . . . . . . . . . . . . . . . . . . . . 235
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 325
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Front Storage . . . . . . . . . . . . . . . . . . . . 86
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 244
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Additives . . . . . . . . . . . . . . . . . . . . . 201
Economy Driving . . . . . . . . . . . . . . . 22
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 204
Filling the Tank . . . . . . . . . . . . . . . 203
Foreign Countries . . . . . . . . . . . . 201
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Low Fuel Warning Light . . . . . . . 108
Requirements, California . . . . . 201
System Messages . . . . . . . . . . . . .116
Full-Size Spare Tire . . . . . . . . . . . . 284
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 252