engine overheat GMC YUKON DENALI 2007 Owner's Manual

If no coolant is visible in the surge tank, add
coolant as follows:
{CAUTION:
Steam and scalding liquids from a hot
cooling system can blow out and burn
you badly. They are under pressure, and if
you turn the radiator pressure cap — even
a little — they can come out at high
speed. Never turn the cap when the
cooling system, including the radiator
pressure cap, is hot. Wait for the cooling
system and radiator pressure cap to cool
if you ever have to turn the pressure cap.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
454

Engine
Air Cleaner/Filter...................................... 437
Battery..................................................... 463
Check and Service Engine Soon Light..... 237
Coolant.................................................... 445
Coolant Heater......................................... 144
Coolant Temperature Gage...................... 236
Drive Belt Routing.................................... 564
Engine Compartment Overview................ 430
Exhaust................................................... 156
Fan Noise................................................ 456
Oil ........................................................... 432
Oil Life System........................................ 435
Overheated Protection Operating Mode.... 450
Overheating............................................. 448
Starting.................................................... 141
Entry Lighting.............................................. 207
Event Data Recorders (EDR)...................... 582
Exit Lighting................................................ 207
Extender, Safety Belt..................................... 60
Exterior Lamps............................................ 203F
Filter
Engine Air Cleaner................................... 437
Finish Damage............................................ 534
Flashers, Hazard Warning........................... 192
Flash-to-Pass.............................................. 195
Flat Tire...................................................... 505
Flat Tire, Changing...................................... 506
Flat Tire, Storing......................................... 522
Fluid
Automatic Transmission............................ 440
Power Steering........................................ 457
Windshield Washer.................................. 458
Fog Lamp Light........................................... 242
Fog Lamps.................................................. 206
Front Axle................................................... 471
Front Reading Lamps.................................. 208
Fuel............................................................ 423
Additives.................................................. 424
California Fuel.......................................... 424
Filling a Portable Fuel Container.............. 428
Filling Your Tank...................................... 426
Fuels in Foreign Countries....................... 425
Gage....................................................... 243
Gasoline Octane...................................... 423
598

N
Navigation/Radio System, see Navigation
Manual..................................................... 321
New Vehicle Break-In.................................. 139
Normal Maintenance Replacement Parts..... 563
O
Odometer.................................................... 227
Odometer, Trip............................................ 227
Off-Road Driving.......................................... 359
Off-Road Recovery...................................... 355
Oil
Engine..................................................... 432
Pressure Gage......................................... 240
Pressure Light.......................................... 241
Oil, Engine Oil Life System......................... 435
Older Children, Restraints............................. 61
Online Owner Center................................... 573
OnStar
®System, see OnStar®Manual........ 164
Other Warning Devices................................ 192
Outlet Adjustment........................................ 222
Outlet(s), Accessory Power.......................... 213Outside
Power Foldaway Mirrors........................... 161
Overheated Engine Protection
Operating Mode....................................... 450
Owner Checks and Services....................... 557
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 534
Park Aid...................................................... 208
Park (P)
Shifting Into............................................. 153
Shifting Out of......................................... 154
Parking
Assist....................................................... 208
Brake....................................................... 152
Over Things That Burn............................ 155
Passenger Airbag Status Indicator............... 230
Passenger Sensing System......................... 101
Passing....................................................... 356
PASS-Key
®III+........................................... 136
PASS-Key®III+ Operation........................... 137
602