engine overheat CHEVROLET SILVERADO 2017 3.G Owner's Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 373
Warning (Continued)
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
The ENGINE OVERHEATED STOPENGINE or the ENGINEOVERHEATED IDLE ENGINEmessage, along with a low coolantcondition, can indicate a seriousproblem.
If there is an engine overheatwarning, but no steam is seen orheard, the problem may not be tooserious. Sometimes the engine canget 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.
.To w s a t r a i l e r ; s e eTr a i l e rTo w i n g0318.
If the ENGINE OVERHEATEDSTOP ENGINE or the ENGINEOVERHEATED IDLE ENGINEmessage appears with no sign ofsteam, try this for a minute or so:
1. Turn the air conditioning off.
2. Turn the heater on to thehighest temperature and to thehighest fan speed. Open thewindows as necessary.
3. When it is safe to do so, pull offthe road, shift to P (Park) orN(Neutral)andlettheengine idle.
If the temperature overheat gauge isno longer in the overheat zone or anoverheat warning no longer
displays, the vehicle can be driven.Continue to drive the vehicle slowlyfor about 10 minutes. Keep a safevehicle distance from the vehicle infront. If the warning does not comeback on, continue to drive normallyand have the cooling systemchecked for proper fill and function.
If the warning continues, pull over,stop, and park the vehicleright away.
If there is still no sign of steam andthe vehicle is equipped with anengine driven cooling fan, pushdown the accelerator until theengine speed is about twice as fastas normal idle speed for at leastfive minutes while the vehicle isparked. If the warning is still there,turn off the engine and get everyoneout of the vehicle until it cools down.
If there is no sign of steam, idle theengine for five minutes whileparked. If the warning is stilldisplayed, turn off the engine until itcools down.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
374 Vehicle Care
Overheated Engine
Protection
Operating Mode
If an overheated engine conditionexists and the ENGINE POWER ISREDUCED message displays, anoverheat protection mode whichalternates firing groups of cylindershelps to prevent engine damage. Inthis mode, a loss in power andengine performance will be noticed.This operating mode allows thevehicle to be driven to a safe placein an emergency. Driving extendeddistances and/or towing a trailer inthe overheat protection modeshould 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 Oil0359.
Engine Fan
If the vehicle has a clutched enginecooling fan, when the clutch isengaged, the fan spins faster toprovide more air to cool the engine.In most everyday driving conditions,the fan is spinning slower and theclutch is not fully engaged. Thisimproves fuel economy and reducesfan noise. Under heavy vehicleloading, trailer towing, and/or highoutside temperatures, the fan speedincreases as the clutch more fullyengages, so an increase in fannoise may be heard. This is normaland should not be mistaken as thetransmission slipping or makingextra shifts. It is merely the coolingsystem functioning properly. The fanwill slow down when additionalcooling is not required and theclutch disengages.
This fan noise may also be heardwhen starting the engine. It will goaway as the fan clutch partiallydisengages.
If the vehicle has electric coolingfan(s), the fans may be heardspinning at low speed during mosteveryday driving. The fans may turnoff if no cooling is required. Underheavy vehicle loading, trailer towing,high outside temperatures,or operation of the air conditioningsystem, the fans may change tohigh speed and an increase in fannoise may be heard. This is normaland indicates that the coolingsystem is functioning properly. Thefans will change to low speed whenadditional cooling is no longerrequired.
The electric engine cooling fansmay run after the engine has beenturned. off. This is normal and noservice is required.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
390 Vehicle Care
Headlamp Wiring
An electrical overload may causethe lamps to go on and off, or insome cases to remain off. Have theheadlamp wiring checked right awayif the lamps go on and off orremain off.
Windshield Wipers
If the wiper motor overheats due toheavy snow or ice, the windshieldwipers will stop until the motor coolsand will then restart.
Although the circuit is protectedfrom electrical overload, overloaddue to heavy snow or ice maycause wiper linkage damage.Always clear ice and heavy snowfrom the windshield before using thewindshield wipers.
If the overload is caused by anelectrical problem and not snow orice, be sure to get it fixed.
Fuses
The wiring circuits in the vehicle areprotected from short circuits byfuses. This greatly reduces thechance of fires caused by electricalproblems.
Look at the silver-colored bandinside the fuse. If the band is brokenor melted, replace the fuse. Be sureyou replace a bad fuse with a newone of the identical size and rating.
Fuses of the same amperage canbe temporarily borrowed fromanother fuse location, if a fuse goesout. Replace the fuse as soon asyou can.
Engine Compartment
Fuse Block
If the vehicle has a diesel engine,see the Duramax dieselsupplement.
The engine compartment fuse blockis in the engine compartment, onthe driver side of the vehicle.
Lift the cover to access the fuseblock.
Caution
Spilling liquid on any electrical
component on the vehicle may
damage it. Always keep the
covers on any electrical
component.
Afusepullerisavailableintheleftinstrument panel fuse block.
The vehicle may not be equippedwith all of the fuses, relays, andfeatures shown.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Index 499
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 472
D
Damage Repair, Collision . . . . . . . 479
Danger, Warning, and Caution . . . . 3
Data Collection
Infotainment System . . . . . . . . . . 485
OnStar . . . . . . . . . . . . . . . . . . . . . . . 485
Data Recorders, Event . . . . . . . . . 484
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 174
Defensive Driving . . . . . . . . . . . . . . . 248
Delayed Locking . . . . . . . . . . . . . . . . . 40
Diagnostics
OnStar®...................... 490
Distracted Driving . . . . . . . . . . . . . . . 247
Dome Lamps . . . . . . . . . . . . . . . . . . . 178
Door
Ajar Messages . . . . . . . . . . . . . . . 151
Delayed Locking . . . . . . . . . . . . . . . . 40
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power Locks . . . . . . . . . . . . . . . . . . . . 40
Drive Belt Routing, Engine . . . . . . 471
Driver Assistance Systems . . . . . 301
Driver Information
Center (DIC) . . . . . . . . . . . . . 145, 147
Driving
Assistance Systems . . . . . . . . . . 304
Driving (cont'd)
Characteristics and
To w i n g T i p s . . . . . . . . . . . . . . . . . 3 1 5
Defensive . . . . . . . . . . . . . . . . . . . . . 248
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 248
For Better Fuel Economy . . . . . . . 31
Hill and Mountain Roads . . . . . . 256
If the Vehicle is Stuck . . . . . . . . . 258
Loss of Control . . . . . . . . . . . . . . . 250
Off-Road . . . . . . . . . . . . . . . . . . . . . 251
Off-Road Recovery . . . . . . . . . . . 250
Vehicle Load Limits . . . . . . . . . . . 259
Wet Roads . . . . . . . . . . . . . . . . . . . 255
Winter . . . . . . . . . . . . . . . . . . . . . . . . 257
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 240
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 312
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 345
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 390
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 390
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 393, 395
Overload . . . . . . . . . . . . . . . . . . . . . 389
Emergency
OnStar®...................... 487
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 367
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 138
Compartment Overview . . . . . . . 354
Coolant . . . . . . . . . . . . . . . . . . . . . . . 369
Coolant Heater . . . . . . . . . . . . . . . 272
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 133
Cooling System . . . . . . . . . . . . . . . 368
Cooling System Messages . . . 152
Drive Belt Routing . . . . . . . . . . . . 471
Exhaust . . . . . . . . . . . . . . . . . . . . . . 276
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Oil Life System . . . . . . . . . . . . . . . 362
Oil Messages . . . . . . . . . . . . . . . . . 152
Oil Pressure Gauge . . . . . . . . . . 132
Overheated Protection
Operating Mode . . . . . . . . . . . . . 374
Overheating . . . . . . . . . . . . . . . . . . 372
Power Messages . . . . . . . . . . . . . 153
Running While Parked . . . . . . . . 277
Starting . . . . . . . . . . . . . . . . . . . . . . . 269
Entry Lighting . . . . . . . . . . . . . . . . . . . 179
Equipment, Towing . . . . . . . . . . . . . 335
Event Data Recorders . . . . . . . . . . 484

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Index 503
Manual Transmission . . . . . . . . . . . 283
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Manual Windows . . . . . . . . . . . . . . . . 51
Media
Avoiding Untrusted Devices . . 196
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 61
Messages
Airbag System . . . . . . . . . . . . . . . . 155
Battery Voltage and
Charging . . . . . . . . . . . . . . . . . . . . 150
Brake System . . . . . . . . . . . . . . . . 151
Compass . . . . . . . . . . . . . . . . . . . . . 151
Door Ajar . . . . . . . . . . . . . . . . . . . . . 151
Engine Cooling System . . . . . . . 152
Engine Oil . . . . . . . . . . . . . . . . . . . . 152
Engine Power . . . . . . . . . . . . . . . . 153
Fuel System . . . . . . . . . . . . . . . . . . 153
Key and Lock . . . . . . . . . . . . . . . . . 153
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 153
Object Detection System . . . . . 153
Ride Control System . . . . . . . . . . 154
Safety Belt . . . . . . . . . . . . . . . . . . . . 155
Security . . . . . . . . . . . . . . . . . . . . . . 156
Steering System . . . . . . . . . . . . . . 156
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Transmission . . . . . . . . . . . . . . . . . 157
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 150
Messages (cont'd)
Vehicle Reminder . . . . . . . . . . . . . 159
Vehicle Speed . . . . . . . . . . . . . . . . 160
Washer Fluid . . . . . . . . . . . . . . . . . 160
Mirrors
Automatic Dimming . . . . . . . . . . . . . 49
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 51
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 49
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 46
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 49
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 46
Manual Rearview . . . . . . . . . . . . . . . 51
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Tilt in Reverse . . . . . . . . . . . . . . . . . . 50
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 47
Mirrors, Interior Rearview . . . . . . . . 50
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 407
Multi-band Antenna . . . . . . . . . . . . . 196
N
Navigation
OnStar®...................... 488
New Vehicle Break-In . . . . . . . . . . . 267
Noise Control System . . . . . . . . . . 382
O
Object Detection System
Messages . . . . . . . . . . . . . . . . . . . . . 153
Odometer . . . . . . . . . . . . . . . . . . . . . . . 131
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 251
Driving . . . . . . . . . . . . . . . . . . . . . . . . 251
Recovery . . . . . . . . . . . . . . . . . . . . . 250
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 359
Engine Oil Life System . . . . . . . 362
Engine Oil Pressure Gauge . . . 132
Messages . . . . . . . . . . . . . . . . . . . . 152
Older Children, Restraints . . . . . . . 88
Online Owner Center . . . . . . . . . . . 475
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 485
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . . 491
OnStar®Connections . . . . . . . . . . . 488
OnStar®Diagnostics . . . . . . . . . . . . 490
OnStar®Emergency . . . . . . . . . . . . 487
OnStar®Navigation . . . . . . . . . . . . . 488
OnStar®Overview . . . . . . . . . . . . . . 486
OnStar®Security . . . . . . . . . . . . . . . 487
Operating Mode
Overheated Engine
Protection . . . . . . . . . . . . . . . . . . . 374

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
504 Index
Operation
Fog Lamps . . . . . . . . . . . . . . . . . . . 176
Ordering
Service Publications . . . . . . . . . . 481
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . 124
Overheated Engine
Protection Operating Mode . . . . 374
Overheating, Engine . . . . . . . . . . . . 372
Overview . . . . . . . . . . . . . . . . . . 183, 184
P
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 273
Shifting Out of . . . . . . . . . . . . . . . . 275
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 275
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 293
Brake and P (Park)
Mechanism Check . . . . . . . . . . 384
Over Things That Burn . . . . . . . 275
Parking Assist . . . . . . . . . . . . . . . . . . 302
Parking or Backing
Assistance Systems . . . . . . . . . . 302
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 137
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Passenger Sensing System . . . . . 82
Perchlorate Materials
Requirements, California . . . . . . 352
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 160
Phone
Apple CarPlay and
Android Auto . . . . . . . . . . . . . . . . 230
Bluetooth . . . . . . . . 216, 217,221, 226
Pickup Conversion to
Chassis Cab . . . . . . . . . . . . . . . . . . 349
Port
USB . . . . . . . . . . . . . . . . . . . . . 199, 201
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 40
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Outlets . . . . . . . . . . . . . . . . . . . . . . . 124
Protection, Battery . . . . . . . . . . . . 180
Retained Accessory (RAP) . . . 271
Seat Adjustment . . . . . . . . . . . . . . . . 59
Steering Fluid . . . . . . . . . . . . . . . . . 375
Windows . . . . . . . . . . . . . . . . . . . . . . . 51
Power Assist Steps . . . . . . . . . . . . . . 42
Pregnancy, Using Safety Belts . . . 71
Privacy
Vehicle Data Recording . . . . . . . 484
Program
Courtesy Transportation . . . . . . 478
Proposition
65 Warning,
California . . . . . . . . . . . .351, 378, 432
R
Radio Frequency Statement . . . . 482
Radio Reception . . . . . . . . . . . . . . . . 195
Radios
AM-FM Radio . . . . . . . . . . . . 189, 191
Satellite . . . . . . . . . . . . . . . . . . . . . . . 193
Reading Lamps . . . . . . . . . . . . . . . . . 178
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 380
Locking . . . . . . . . . . . . . . . . . . . . . . . 298
Rear Seats . . . . . . . . . . . . . . . . . . 64, 65
Rear Vision Camera (RVC) . . . . . 302
Rear Windows . . . . . . . . . . . . . . . . . . . 53
Rearview Mirrors . . . . . . . . . . . . . . . . 51
Automatic Dimming . . . . . . . . . . . . . 51
Reclining Seatbacks . . . . . . . . . . . . . 60
Recognition
Voice . . . . . . . . . . . . . . . . . . . . . . . . . 209
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 462
Records
Maintenance . . . . . . . . . . . . . . . . . . 466
Recreational Vehicle Towing . . . . 437
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 476