2020 GMC SAVANA overheating

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
234 Vehicle Care
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 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.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.
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 089.
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 0324.
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.
If Steam is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned. Never turn
the cap when the cooling system,
including the pressure cap, is hot.
Wait for the cooling system and
pressure cap to cool.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
254 Vehicle Care
Mini-Fuses UsageF37 –
F38 –
Relays Usage K1 Run
K2 –
K3 Parking lamps
K4 Upfitter 2
K5 Rear window defogger
K6 Retained accessory power
Circuit
Breakers Usage
CB1 Power seats
CB2 Power windowsWheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. See Vehicle Load
Limits 0157.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
262 Vehicle Care
government testing procedures.
The ratings are molded into the
sidewall of the tire. SeeUniform
Tire Quality Grading 0272.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits 0157.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” underVehicle
Load Limits 0157.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
{Warning
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating, which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
(Continued)
Warning (Continued)
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity.
For additional information
regarding how much weight the
vehicle can carry, and an
example of the Tire and Loading
Information label, see Vehicle
Load Limits 0157. How the
vehicle is loaded affects vehicle
handling and ride comfort. Never

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
346 Index
Driving (cont'd)Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 195
Defensive . . . . . . . . . . . . . . . . . . . . . 151
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 151
Hill and Mountain Roads . . . . . . 155
If the Vehicle is Stuck . . . . . . . . . 157
Loss of Control . . . . . . . . . . . . . . . 153
Off-Road Recovery . . . . . . . . . . . 153
Vehicle Load Limits . . . . . . . . . . . 157
Wet Roads . . . . . . . . . . . . . . . . . . . 154
Winter . . . . . . . . . . . . . . . . . . . . . . . . 155
Dual Tire Rotation . . . . . . . . . . . . . . . . . . . . . . 269
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 192
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 252
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 247
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 335 Engine
Air Cleaner/Filter . . . . . . . . . . . . . 228
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . 92
Compartment Overview . . . . . . . 217
Coolant Heater . . . . . . . . . . . . . . . 166
Coolant Temperature Gauge . . . . 89
Cooling System . . . . . . . . . . . . . . . 229
Drive Belt Routing . . . . . . . . . . . . 319
Exhaust . . . . . . . . . . . . . . . . . . . . . . 169
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Oil Life System . . . . . . . . . . . . . . . 223
Oil Pressure Gauge . . . . . . . . . . . . 88
Oil Pressure Light . . . . . . . . . . . . . . 97
Overheating . . . . . . . . . . . . . . . . . . 234
Power Messages . . . . . . . . . . . . . 104
Running While Parked . . . . . . . . 170
Starting . . . . . . . . . . . . . . . . . . . . . . . 164
Enhanced Technology Glass . . . . 24
Entry Lighting . . . . . . . . . . . . . . . . . . . 114
Entry/Exit Lighting . . . . . . . . . . . . . . 114
Equipment, Towing . . . . . . . . . . . . . 207
Event Data Recorders . . . . . . . . . . 332
Exit Lighting . . . . . . . . . . . . . . . . . . . . 114
Extender, Seat Belt . . . . . . . . . . . . . . 42
Exterior Lamp Controls . . . . . . . . . 109
Exterior Lamps Off Reminder . . . 110 Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 115
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 235
Fast Idle System . . . . . . . . . . . . . . . . 165
Filter,
Engine Air Cleaner . . . . . . . . . . . 228
Fixed Mast Antenna . . . . . . . . . . . . 125
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 110
Flashers, Hazard Warning . . . . . . 112
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 275 Changing . . . . . . . . . . . . . . . . . . . . . 276
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 301
Fluid
AutomaticTransmission . . . . . . . . . . . 224, 227
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 238
Power Steering . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 236
Folding Mirrors . . . . . . . . . . . . . . . . . . 22
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 185
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 329

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-13882574) -
2020 - CRC - 11/1/19
Index 349
Lower Anchors and Tethersfor Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 63
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 315
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 309
Maintenance Schedule . . . . . . . . . 304 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 312
Malfunction Indicator Lamp . . . . . . 92
Manual Mirrors . . . . . . . . . . . . . . . . . . 21
Manual Mode . . . . . . . . . . . . . . . . . . . 173
Manual Windows . . . . . . . . . . . . . . . . 23
Media Avoiding Untrusted Devices . . 125
Messages Engine Power . . . . . . . . . . . . . . . . 104
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 103
Vehicle Speed . . . . . . . . . . . . . . . . 104
Mirrors Convex . . . . . . . . . . . . . . . . . . . . . . . . . 21
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 22
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 22
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 21
Manual Rearview . . . . . . . . . . . . . . . 22 Mirrors (cont'd)
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 21
Mirrors, Interior Rearview . . . . . . . . 22
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 263
Multi-band Antenna . . . . . . . . . . . . . 125
N
Navigation
Connected Services . . . . . . . . . . 340
New Vehicle Break-In . . . . . . . . . . . 161
Noise Control System . . . . . . . . . . 240
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 87
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . 153
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 221
Engine Oil Life System . . . . . . . 223
Engine Oil Pressure Gauge . . . . . 88
Pressure Light . . . . . . . . . . . . . . . . . . 97
Older Children, Restraints . . . . . . . 55
Online Owner Center . . . . . . . . . . . 323
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 333
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 336 OnStar Emergency . . . . . . . . . . . . . 335
OnStar Overview . . . . . . . . . . . . . . . 334
OnStar Security . . . . . . . . . . . . . . . . 336
OnStar System . . . . . . . . . . . . . . . . . 135
Operation
Infotainment System . . . . . . . . . . 120
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Overheating, Engine . . . . . . . . . . . . 234
Overview . . . . . . . . . . . . . . . . . . 117, 119 Instrument Panel . . . . . . . . . . . . . . . . 5
P
Park
Shifting Out of . . . . . . . . . . . . . . . . 169
Park Assist . . . . . . . . . . . . . . . . . . . . . 184
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 176
Brake and P (Park)Mechanism Check . . . . . . . . . . 242
Over Things That Burn . . . . . . . 169
Perchlorate Materials Requirements, California . . . . . . 215
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 104
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 136