2018 CHEVROLET SILVERADO 1500 coolant temperature
[x] Cancel search: coolant temperaturePage 355 of 501
Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
354 Vehicle Care
What to Use
{Warning
Plain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but
there would not be an overheat
warning. The engine could catch
fire and you or others could be
burned.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts. .
Helps keep the proper engine
temperature.Caution
Do not use anything other than a
mix of DEX-COOL coolant that
meets GM Standard
GMW3420 and clean, drinkable
water. Anything else can cause
damage to the engine cooling
system and the vehicle, which
would not be covered by the
vehicle warranty.
Never dispose of engine coolant by
putting it in the trash, or by pouring
it on the ground, or into sewers,
streams, or bodies of water. Have
the coolant changed by an
authorized service center, familiar
with legal requirements regarding
used coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The coolant surge tank is located in
the engine compartment on the
passenger side of the vehicle. See
Engine Compartment Overview
0 338.
The vehicle must be on a level
surface when checking the coolant
level.
5.3L V8 Shown, 4.3L V6, 6.0L V8, and 6.2L V8 Similar
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, wait until it cools down. The
coolant level should be at or above
Page 357 of 501
Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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356 Vehicle Care
Turn the pressure cap slowly
counterclockwise about one full
turn. If a hiss is heard, wait for
that to stop. A hiss means
there is still some pressure left.
2. Keep turning the pressure cap slowly, and remove it.
3. Fill the coolant surge tank with the proper mixture to the full
cold mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until the
engine coolant temperature
gauge indicates approximately
90 °C (195 °F).
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
full cold mark.
5. Replace the pressure cap tightly. 6. Verify coolant level after the
engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1–6.
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 the Duramax
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 several indicators
to warn of engine overheating.
There is a coolant temperature
gauge in the vehicle's instrument
cluster. See
Engine Coolant
Temperature Gauge 0142.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS
REDUCED messages in the Driver
Information Center (DIC).
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0 465.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
4.3L V6, 5.3L V8, and 6.2L
V8 Engines
Check to see if the engine cooling
fans are running. If the engine is
overheating, the fans should be
Page 358 of 501
Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 357
running. If they are not, do not
continue to run the engine and have
the vehicle serviced.
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.
If No Steam is Coming from
the Engine Compartment
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message, along with a low coolant
condition, can indicate a serious
problem.If there is an engine overheat
warning, but no steam is 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 Trailer Towing
0 300.
If the ENGINE OVERHEATED
STOP ENGINE or the ENGINE
OVERHEATED IDLE ENGINE
message appears with no sign of
steam, try this for a minute or so: 1. Turn the air conditioning 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 temperature overheat 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 and
the vehicle is equipped with an
engine driven cooling fan, push
down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
five minutes while the vehicle is
parked. If the warning is still there,
turn off the engine and get everyone
out of the vehicle until it cools down.
If there is no sign of steam, idle the
engine for five minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down.
Page 359 of 501
Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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358 Vehicle Care
Overheated Engine
Protection
Operating Mode
If an overheated engine condition
exists and the ENGINE POWER IS
REDUCED message displays, an
overheat protection mode which
alternates firing groups of cylinders
helps to prevent engine damage. In
this mode, a loss in power and
engine performance will be noticed.
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Driving extended
distances and/or towing a trailer in
the overheat protection mode
should be avoided.
Caution
After driving in the overheated
engine protection operating
mode, the engine oil will be
severely degraded. Any repairs
performed before the engine is
cool may cause engine damage.
Allow the engine to cool before(Continued)
Caution (Continued)
attempting any repair. Repair the
cause of coolant loss, change the
oil, and reset the oil life system.
SeeEngine Oil 0343.
Engine Fan
If 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
outside temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan will slow down when additional
cooling is not required and the
clutch disengages.
This fan noise may also be heard
when starting the engine. It will go
away as the fan clutch partially
disengages.
If the vehicle has electric cooling
fan(s), the fans may be heard
spinning at low speed during most
everyday driving. The fans may turn
off if no cooling is required. Under
heavy vehicle loading, trailer towing,
high outside temperatures,
or operation of the air conditioning
system, the fans may change to
high speed and an increase in fan
noise may be heard. This is normal
and indicates that the cooling
system is functioning properly. The
fans will change to low speed when
additional cooling is no longer
required.
The electric engine cooling fans
may run after the engine has been
turned. off. This is normal and no
service is required.
Page 490 of 501
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Index 489
California (cont'd)Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 336
California
Proposition
65 Warning . . . . . . . . . .336, 362, 421, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 457
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 256
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 43
Winter Driving . . . . . . . . . . . . . . . . 237
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 126
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 177
Caution, Danger, and Warning . . . . 3
Center Console Storage . . . . . . . . 125
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 375
Center Seat . . . . . . . . . . . . . . . . . . . . . 59
Chains, Tire . . . . . . . . . . . . . . . . . . . . 408
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . 134
Charging System Light . . . . . . . . . 147 Check
Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 147
Ignition Transmission Lock . . . 368
Child Restraints Infants and Young Children . . . . . 94
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 99
Older Children . . . . . . . . . . . . . . . . . . 92
Securing . . . . . . . . . . . . . 111, 114, 115
Systems . . . . . . . . . . . . . . . . . . . . . . . . 96
Circuit Breakers . . . . . . . . . . . . . . . . 376
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 430
Interior Care . . . . . . . . . . . . . . . . . . 436
Climate Control
Systems . . . . . . . . . . . . . . . . . 216, 218
Air Conditioning . . . . . . . . . 216, 218
Dual Automatic . . . . . . . . . . . . . . . 220
Heating . . . . . . . . . . . . . . . . . . 216, 218
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Cluster, Instrument . . . . . . . . . . . . . 137
Clutch, Hydraulic . . . . . . . . . . . . . . . 351
Collision Damage Repair . . . . . . . 468
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 124
Compass . . . . . . . . . . . . . . . . . . . . . . . 131 Connections
OnStar . . . . . . . . . . . . . . . . . . . . . . . 478
Control Hill Descent . . . . . . . . . . . . . . . . . . 277
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 276
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 151
Control of a Vehicle . . . . . . . . . . . . . 228
Convex Mirrors . . . . . . . . . . . . . . . . . . 47
Coolant Engine Temperature Gauge . . 142
Cooling . . . . . . . . . . . . . . .216, 218, 220
Cooling System . . . . . . . . . . . . . . . . . 352
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 467
Cruise Control . . . . . . . . . . . . . . . . . . 279 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Cupholders . . . . . . . . . . . . . . . . . . . . . 125
Customer Assistance . . . . . . . . . . . 464 Offices . . . . . . . . . . . . . . . . . . . . . . . . 463
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 464
Customer Information Service Publications
Ordering Information . . . . . . . . 470
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 461
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490 Index
D
Damage Repair, Collision . . . . . . . 468
Danger, Warning, and Caution . . . . 3
Data CollectionInfotainment System . . . . . . . . . . 474
OnStar . . . . . . . . . . . . . . . . . . . . . . . 474
Data Recorders, Event . . . . . . . . . 473
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 174
Defensive Driving . . . . . . . . . . . . . . . 228
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 480
Distracted Driving . . . . . . . . . . . . . . . 227
Dome Lamps . . . . . . . . . . . . . . . . . . . 178
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Power Locks . . . . . . . . . . . . . . . . . . . . 41
Drive Belt Routing, Engine . . . . . . 460
Driver Assistance Systems . . . . . 281
Driver Information Center (DIC) . . . . . . . . . . . . . 155, 156
Driving Assistance Systems . . . . . . . . . . 285
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 296
Defensive . . . . . . . . . . . . . . . . . . . . . 228
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 228
For Better Fuel Economy . . . . . . . 32 Driving (cont'd)
Hill and Mountain Roads . . . . . . 236
If the Vehicle is Stuck . . . . . . . . . 238
Loss of Control . . . . . . . . . . . . . . . 230
Off-Road . . . . . . . . . . . . . . . . . . . . . 231
Off-Road Recovery . . . . . . . . . . . 230
Vehicle Load Limits . . . . . . . . . . . 239
Wet Roads . . . . . . . . . . . . . . . . . . . 235
Winter . . . . . . . . . . . . . . . . . . . . . . . . 237
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 220
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 293
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 329
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 376
Fuses and Circuit Breakers . . . 376
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 380, 381
Overload . . . . . . . . . . . . . . . . . . . . . 375
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 476
Engine Air Cleaner/Filter . . . . . . . . . . . . . 351 Engine (cont'd)
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 147
Compartment Overview . . . . . . . 338
Coolant Heater . . . . . . . . . . . . . . . 252
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 142
Cooling System . . . . . . . . . . . . . . . 352
Drive Belt Routing . . . . . . . . . . . . 460
Exhaust . . . . . . . . . . . . . . . . . . . . . . 256
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Oil Life System . . . . . . . . . . . . . . . 346
Oil Pressure Gauge . . . . . . . . . . 141
Overheated Protection Operating Mode . . . . . . . . . . . . . 358
Overheating . . . . . . . . . . . . . . . . . . 356
Power Messages . . . . . . . . . . . . . 160
Running While Parked . . . . . . . . 257
Starting . . . . . . . . . . . . . . . . . . . . . . . 249
Entry Lighting . . . . . . . . . . . . . . . . . . . 179
Equipment, Towing . . . . . . . . . . . . . 318
Event Data Recorders . . . . . . . . . . 473
Exit Lighting . . . . . . . . . . . . . . . . . . . . 179
Extender, Seat Belt . . . . . . . . . . . . . . 75
Exterior Lamp Controls . . . . . . . . . 171
Exterior Lamps Off Reminder . . . 173
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 180
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Index 491
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 358
Fast Idle System . . . . . . . . . . . . . . . . 251
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . 351
Fixed Mast Antenna . . . . . . . . . . . . 189
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 174
Flashers, Hazard Warning . . . . . . 175
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 408 Changing . . . . . . . . . . . . . . . . . . . . . 410
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Floor Console Storage . . . . . . . . . . 126
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 439
Fluid Automatic
Transmission . . . . . . . . . . . 347, 350
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 361
Four-Wheel Drive Transfer Case . . . . . . . . . . . . . . . 265
Power Steering . . . . . . . . . . . . . . . 359
Washer . . . . . . . . . . . . . . . . . . . . . . . 359
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 176 Bulb Replacement . . . . . . . . . . . . 373
Folding Mirrors . . . . . . . . . . . . . . . . . . 49 Forward Automatic Braking . . . . . 287
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 285
Four-Wheel Drive . . . . . . . . . . 265, 363
Four-Wheel-Drive Light . . . . . . . . . 150
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 471
Front Axle . . . . . . . . . . . . . . . . . . . . . . 364
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 59
Heated and Ventilated . . . . . . . . . . 65
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Additives . . . . . . . . . . . . . . . . . . . . . 293
Economy Driving . . . . . . . . . . . . . . . 32
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 296
Filling the Tank . . . . . . . . . . . . . . . 294
Foreign Countries . . . . . . . . . . . . 293
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 140
Low Fuel Warning Light . . . . . . . 153
Management, Active . . . . . . . . . . 256
Requirements, California . . . . . 293
Full-Size Spare Tire . . . . . . . . . . . . 420
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 376 Fuses (cont'd)
Fuses and Circuit Breakers . . . 376
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 380, 381
G
Garage Door Opener . . . . . . . . . . . 168
Programming . . . . . . . . . . . . . . . . . 168
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 370
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 142
Engine Oil Pressure . . . . . . . . . . 141
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Odometer . . . . . . . . . . . . . . . . . . . . . 140
Speedometer . . . . . . . . . . . . . . . . . 140
Tachometer . . . . . . . . . . . . . . . . . . . 140
Trip Odometer . . . . . . . . . . . . . . . . 140
Voltmeter . . . . . . . . . . . . . . . . . . . . . 143
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 136
General Information Service and Maintenance . . . . . 441
Towing . . . . . . . . . . . . . . . . . . . . . . . . 296
Vehicle Care . . . . . . . . . . . . . . . . . . 335
Glove Box . . . . . . . . . . . . . . . . . . . . . . 124
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 465