
GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
2017 - crc - 5/2/16
Vehicle Care 231
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 098.
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 0318.
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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
2017 - crc - 5/2/16
232 Vehicle Care
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 betoo 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 0206.
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.
Engine Fan
The 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 fan is spinning slower and the
clutch is not fully engaged. This
improves fuel economy and reduces
fan noise. Under heavy vehicle
loading, trailer towing, and/or high

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
2017 - crc - 5/2/16
Vehicle Care 247
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of fires caused by electrical
problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
Engine Compartment
Fuse Block
For vans with a diesel engine, see
the Duramax diesel supplement.
The fuse block is located in the
engine compartment on the driver
side of the vehicle.
Vehicles with upfitter content
See www.gmupfitter.com for upfitter
provisions and best practices.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
2017 - crc - 5/2/16
Index 341
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 200
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 213
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 250
Fuses and Circuit Breakers . . . 247
Overload . . . . . . . . . . . . . . . . . . . . . 246
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 329
Engine Air Cleaner/Filter . . . . . . . . . . . . . 226
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 102
Compartment Overview . . . . . . . 219
Coolant . . . . . . . . . . . . . . . . . . . . . . . 228
Coolant Temperature Gauge . . . . 98
Cooling System . . . . . . . . . . . . . . . 227
Cooling System Messages . . . .113
Drive Belt Routing . . . . . . . . . . . . 313
Exhaust . . . . . . . . . . . . . . . . . . . . . . 183
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Heater . . . . . . . . . . . . . . . . . . . . . . . . 180
Oil Life System . . . . . . . . . . . . . . . 222
Oil Messages . . . . . . . . . . . . . . . . . .114
Oil Pressure Gauge . . . . . . . . . . . . 97 Engine (cont'd)
Oil Pressure Light . . . . . . . . . . . . 106
Overheating . . . . . . . . . . . . . . . . . . 231
Power Messages . . . . . . . . . . . . . .114
Running While Parked . . . . . . . . 184
Starting . . . . . . . . . . . . . . . . . . . . . . . 178
Enhanced Technology Glass . . . . 38
Entry/Exit Lighting . . . . . . . . . . . . . . 130
Equipment, Towing . . . . . . . . . . . . . 211
Event Data Recorders . . . . . . . . . . 326
Extender, Safety Belt . . . . . . . . . . . . 53
Exterior Lamp Controls . . . . . . . . . 125
Exterior Lamps Off Reminder . . . 126
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . . . 232
Fast Idle System . . . . . . . . . . . . . . . . 179
Filter, Engine Air Cleaner . . . . . . . . . . . 226
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 126
Flashers, Hazard Warning . . . . . . 128
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 274 Changing . . . . . . . . . . . . . . . . . . . . . 276
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 297
Fluid Automatic Transmission . . . . . . 223 Fluid (cont'd)
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 235
Power Steering . . . . . . . . . . . . . . . 233
Washer . . . . . . . . . . . . . . . . . . . . . . . 234
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 324
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Front Storage . . . . . . . . . . . . . . . . . . . . 85
Front Turn Signal
Bulb Replacement . . . . . . . . . . . . 243
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199 Additives . . . . . . . . . . . . . . . . . . . . . 200
Economy Driving . . . . . . . . . . . . . . . 22
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 202
Filling the Tank . . . . . . . . . . . . . . . 201
Foreign Countries . . . . . . . . . . . . 200
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning Light . . . . . . . 107
Requirements, California . . . . . 199
System Messages . . . . . . . . . . . . .115
Full-Size Spare Tire . . . . . . . . . . . . 283
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Console Fuse Block . . . . 250
Fuses and Circuit Breakers . . . 247

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9967828) -
2017 - crc - 5/2/16
344 Index
Mirrors, Interior Rearview . . . . . . . . 36
Monitor System, TirePressure . . . . . . . . . . . . . . . . . . . . . . 262
Multi-band Antenna . . . . . . . . . . . . . 141
N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 330
New Vehicle Break-In . . . . . . . . . . . 176
Noise Control System . . . . . . . . . . 238
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 115
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 96 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . 168
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . 222
Engine Oil Pressure Gauge . . . . . 97
Messages . . . . . . . . . . . . . . . . . . . . .114
Pressure Light . . . . . . . . . . . . . . . . 106
Older Children, Restraints . . . . . . . 66
Online Owner Center . . . . . . . . . . . 317
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 327
OnStar System . . . . . . . . . . . . . . . . . 151 OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 333
OnStar
®Connections . . . . . . . . . . . 330
OnStar®Diagnostics . . . . . . . . . . . . 332
OnStar®Emergency . . . . . . . . . . . . 329
OnStar®Navigation . . . . . . . . . . . . . 330
OnStar®Overview . . . . . . . . . . . . . . 328
OnStar®Security . . . . . . . . . . . . . . . 329
Operation Infotainment System . . . . . . . . . . 136
Ordering
Service Publications . . . . . . . . . . 323
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Overheating, Engine . . . . . . . . . . . . 231
Overview . . . . . . . . . . . . . . . . . . 133, 135
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 181
Shifting Out of . . . . . . . . . . . . . . . . 182
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 190
Brake and P (Park)Mechanism Check . . . . . . . . . . 240
Over Things That Burn . . . . . . . 183
Parking Assist . . . . . . . . . . . . . . . . . . 197
Perchlorate Materials Requirements, California . . . . . . 216 Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .119
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 151
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 29
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 92
Protection, Battery . . . . . . . . . . . . 131
Retained Accessory (RAP) . . . 181
Seat Adjustment . . . . . . . . . . . . . . . . 41
Steering Fluid . . . . . . . . . . . . . . . . . 233
Windows . . . . . . . . . . . . . . . . . . . . . . . 37
Pregnancy, Using Safety Belts . . . 53
Privacy Vehicle Data Recording . . . . . . . 326
Program Courtesy Transportation . . . . . . 320
Proposition 65 Warning,
California . . . . . . . . . . . .216, 236, 283
R
Radio Frequency Statement . . . . 324
Radio Reception . . . . . . . . . . . . . . . . 140
RadiosAM-FM Radio . . . . . . . . . . . . . . . . . 138
Satellite . . . . . . . . . . . . . . . . . . . . . . . 139
Reading Lamps . . . . . . . . . . . . . . . . . 130