engine overheat GMC YUKON DENALI 2005 Owner's Manual

{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.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
1. You can remove the
coolant surge tank
pressure cap when the
cooling system,
including the coolant
surge tank pressure
cap and upper radiator
hose, is no longer hot.
Turn the pressure cap slowly counterclockwise (left)
about one full turn. If you hear a hiss, wait for that
to stop. A hiss means there is still some pressure left.
2. Then keep turning the pressure cap slowly, and
remove it.
5-33

Driving
At Night.....................................................4-29
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-34
Hill and Mountain Roads..............................4-36
In Rain and on Wet Roads...........................4-31
Recovery Hooks..........................................4-43
Rocking Your Vehicle to Get it Out.................4-42
Winter........................................................4-38
Dual Automatic Climate Control System.............3-20
DVD
Rear Seat Entertainment System...................3-83
E
Electrical System
Add-On Equipment.....................................5-105
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
Power Windows and Other Power Options....5-105
Underhood Fuse Block...............................5-109
Windshield Wiper Fuses.............................5-105
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-41Engine (cont.)
Check and Service Engine Soon Light............3-39
Coolant......................................................5-25
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-37
Engine Compartment Overview......................5-12
Exhaust.....................................................2-30
Fan Noise..................................................5-35
Oil .............................................................5-14
Overheated Protection Operating Mode...........5-30
Overheating................................................5-28
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-47
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-101
Fixed Mast Antenna.......................................3-102
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-74
Flat Tire, Storing.............................................5-90
5

Mirrors (cont.)
Outside Convex Mirror.................................2-35
Outside Heated Mirrors................................2-36
Outside Power Mirrors..................................2-34
MyGMLink.com................................................ 7-3
N
Navigation/Radio System..................................3-94
New Vehicle Break-In......................................2-19
Normal Maintenance Replacement Parts............6-14
O
Odometer......................................................3-30
Off-Road Recovery..........................................4-13
Oil
Engine.......................................................5-14
Pressure Gage............................................3-42
Older Children, Restraints................................1-47
Online Owner Center........................................ 7-3
OnStar
®System.............................................2-37
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-16
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-25Outside
Automatic Dimming Mirror with Curb View
Assist.....................................................2-36
Convex Mirror.............................................2-35
Heated Mirrors............................................2-36
Power Mirrors.............................................2-34
Overheated Engine Protection Operating Mode....5-30
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-28
Shifting Out of............................................2-29
Parking
Brake........................................................2-27
Over Things That Burn.................................2-30
Passenger Airbag Status Indicator.....................3-32
Passenger Sensing System..............................1-79
Passing.........................................................4-14
Passlock
®......................................................2-19
Power
Accessory Outlets........................................3-19
Door Locks.................................................. 2-9
Electrical System.......................................5-105
9