2017 CHEVROLET SUBURBAN engine overheat

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
336 Vehicle Care
6. Verify coolant level after theengine 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
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
For a heavy-duty Suburban, see the
Suburban Heavy-Duty Package
supplement.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
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 0147.
In addition, there are ENGINE
OVERHEATED STOP ENGINE,
ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS
REDUCED messages in the Driver
Information Center (DIC). See
Engine Cooling System Messages
0 168 andEngine Power
Messages 0169.
If the decision is made not to lift the
hood when this warning appears,
get service help right away.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Check to see if the engine cooling
fan(s) are running. If the engine is
overheating, the fans should be
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 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
The ENGINE OVERHEATED STOP
ENGINE or the ENGINE
OVERHEATED IDLE ENGINE

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
Vehicle Care 337
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 0306.
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 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 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.
Engine Fan
If the vehicle has electric cooling
fans, 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.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
456 Index
Dome Lamps . . . . . . . . . . . . . . . . . . . 195
DoorAjar Messages . . . . . . . . . . . . . . . 168
Delayed Locking . . . . . . . . . . . . . . . . 46
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power Locks . . . . . . . . . . . . . . . . . . . . 45
Drive Belt Routing, Engine . . . . . . 428
Driver Assistance Systems . . . . . 287
Driver Information
Center (DIC) . . . . . . . . . . . . . 158, 160
Driving
Assistance Systems . . . . . . . . . . 290
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 303
Defensive . . . . . . . . . . . . . . . . . . . . . 236
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 236
For Better Fuel Economy . . . . . . . 30
Hill and Mountain Roads . . . . . . 243
If the Vehicle is Stuck . . . . . . . . . 245
Loss of Control . . . . . . . . . . . . . . . 238
Off-Road . . . . . . . . . . . . . . . . . . . . . 238
Off-Road Recovery . . . . . . . . . . . 237
Vehicle Load Limits . . . . . . . . . . . 247
Wet Roads . . . . . . . . . . . . . . . . . . . 243
Winter . . . . . . . . . . . . . . . . . . . . . . . . 244
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 226E
E85 or FlexFuel . . . . . . . . . . . . . . . . 300
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 318
Electrical System
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 352
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 351
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 356, 359
Overload . . . . . . . . . . . . . . . . . . . . . 351
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 361
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 444
Engine Air Cleaner/Filter . . . . . . . . . . . . . 331
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 151
Compartment Overview . . . . . . . 323
Coolant . . . . . . . . . . . . . . . . . . . . . . . 333
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 147
Cooling System . . . . . . . . . . . . . . . 332
Cooling System Messages . . . 168
Drive Belt Routing . . . . . . . . . . . . 428
Exhaust . . . . . . . . . . . . . . . . . . . . . . 261
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 337 Engine (cont'd)
Heater . . . . . . . . . . . . . . . . . . . . . . . . 257
Oil Life System . . . . . . . . . . . . . . . 327
Oil Messages . . . . . . . . . . . . . . . . . 169
Oil Pressure Gauge . . . . . . . . . . 146
Overheating . . . . . . . . . . . . . . . . . . 336
Power Messages . . . . . . . . . . . . . 169
Running While Parked . . . . . . . . 262
Starting . . . . . . . . . . . . . . . . . . . . . . . 255
Entry Lighting . . . . . . . . . . . . . . . . . . . 196
Equipment, Towing . . . . . . . . . . . . . 310
Event Data Recorders . . . . . . . . . . 441
Exit Lighting . . . . . . . . . . . . . . . . . . . . 196
Extended Parking . . . . . . . . . . . . . . . 261
Extender, Safety Belt . . . . . . . . . . . . 90
Exterior Lamp Controls . . . . . . . . . 189
Exterior Lamps Off Reminder . . . 191
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . . . 337
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter,
Engine Air Cleaner . . . . . . . . . . . 331
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 191
Flashers, Hazard Warning . . . . . . 193
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 382 Changing . . . . . . . . . . . . . . . . . . . . . 383

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
460 Index
Messages (cont'd)Vehicle . . . . . . . . . . . . . . . . . . . . . . . 166
Vehicle Reminder . . . . . . . . . . . . . 177
Washer Fluid . . . . . . . . . . . . . . . . . 177
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 60
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 60
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 58
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 57
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 58
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 58
Manual Rearview . . . . . . . . . . . . . . . 60
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Tilt in Reverse . . . . . . . . . . . . . . . . . . 59
Mirrors, Interior Rearview . . . . . . . . 60
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 371
Multi-band Antenna . . . . . . . . . . . . . 208
N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 445
Net, Convenience . . . . . . . . . . . . . . 127
New Vehicle Break-In . . . . . . . . . . . 251
Noise Control System . . . . . . . . . . 343
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 171
Odometer . . . . . . . . . . . . . . . . . . . . . . . 145 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 238 Driving . . . . . . . . . . . . . . . . . . . . . . . . 238
Recovery . . . . . . . . . . . . . . . . . . . . . 237
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Oil Life System . . . . . . . 327
Engine Oil Pressure Gauge . . . 146
Messages . . . . . . . . . . . . . . . . . . . . 169
Older Children, Restraints . . . . . . 104
Online Owner Center . . . . . . . . . . . 432
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 441
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 448
OnStar
®Connections . . . . . . . . . . . 445
OnStar®Diagnostics . . . . . . . . . . . . 447
OnStar®Emergency . . . . . . . . . . . . 444
OnStar®Navigation . . . . . . . . . . . . . 445
OnStar®Overview . . . . . . . . . . . . . . 443
OnStar®Security . . . . . . . . . . . . . . . 444
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 194
Ordering Service Publications . . . . . . . . . . 438 Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . 136
Overheating, Engine . . . . . . . . . . . . 336
Overview . . . . . . . . . . . . . . . . . . . . . . . 199
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 259
Shifting Out of . . . . . . . . . . . . . . . . 260
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 273
Brake and P (Park)Mechanism Check . . . . . . . . . . 345
Extended . . . . . . . . . . . . . . . . . . . . . 261
Over Things That Burn . . . . . . . 260
Parking Assist . . . . . . . . . . . . . . . . . . 288
Parking or Backing Assistance Systems . . . . . . . . . . 288
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 150
Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Passenger Sensing System . . . . . 98
Perchlorate Materials Requirements, California . . . . . . 321
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 178
Phone Bluetooth . . . . . . . . . . . 214, 215, 219