2003 GMC SIERRA DENALI engine overheat

Adding ~.ly p.-.n water to your coa....g 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
wouldn’t get the overheat warning. Your engine could catch fire and you or others could be
burned. Use a
50/50 mixture of clean, drinkable i i 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.
I
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. Don’t spill coolant on a hot engine.
5-33

Driving Through Flowing Water ..................... 4-32
Driving with a Trailer
....................................... 4-56
Dual Automatic Climate Control System
.......... 3-18
E
Easy Exit Seat .................... .... 2-43
Electrical System
Add-on Equipment
...................................... 5-95
Fuses and Circuit Breakers
........................... 5-95
Power Windows and Other Power Options
...... 5-95
Windshield Wiper Fuses
............................... 5-95
Electrochromic Mirror Operation
........................ 2-28
Maintenance Programs
................................. 3-40
Air CleanedFilter
......................................... 5-1 9
Battery
....................................................... 5-42
Check and Service Engine Soon Light
............ 3-38
Coolant
...................................................... 5-24
Coolant Heater
............................................ 2-17
Coolant Temperature Gage
........................ 3-36
Cooling System Inspection
......................... 6-14
Engine Compartment Overview
...................... 5-1 2
Exhaust
..................................................... 2-26
Fan Noise
.................................................. 5-36
Oil
............................................................. 5-13
Overheating
................................................ 5-27
Starting
...................................................... 2-1 6
Emissions
Inspection and
Engine ENGINE COOLANT HOT
................................. 3-54
Engine Coolant Level Check
............................. 6-10
Engine Hour Meter Display
............................... 3-26
Engine
Oil and Chassis Lubrication Scheduled
Engine
Oil Additives
........................................ 5-17
Engine Oil Level Check
................................... 6-10
Entry Lighting
......................... ............. 3-15
Maintenance
................................................. 6-5
ENGINE OVERHEATED
.................................. 3-54
Erasing HomeLink@ Buttons
...... ......... 2-38
Exit Lighting
............................... ............. 3-15
Express-Down Windows
................................... 2-11
Extender, Safety Belt
....................................... 1-29
Exterior Lamps
............................................... 3-11
F
FabridCarpet ................................................. 5-87
Engine Air Cleaner
...................................... 5-19
Filter
Finding
a PTY Station
(RDS, XMTM and DAB)
................................. 3-67
Finding a Station
............................................ 3-64
Finish Care
.................................................... 5-89
Finish Damage
............................................... 5-91
Fixed Mast Antenna
........................................ 3-84
Flash-To-Pass Feature
....................................... 3-6
Flat Tire
........................................................ 5-68
Flat Tire, Changing
......................................... 5-69

OIL PRESSURE LOW ..................................... 3-54
Older Children. Restraints
................................ 1-30
Online Owner Center ........................................ 7-3
Onstar@ Personal Calling
................................. 2-34
Onstar@ Services
............................................ 2-33
Onstar@ Steering Wheel Controls
...................... 2-34
Onstar@ System
............................................. 2-33
Onstar@ Virtual Advisor
.................................... 2-34
Operating Your All-Wheel-Drive Vehicle
Off
Paved Roads ..................
Other Warning Devices ........
Outlet Adjustment ................
Outside
Automatic Dimming Mirror
.
Convex Mirror .................
Curb View Assist Mirrors ..
Heated Mirrors ................
Power Foldaway Mirrors ...
...
......................... 4-16
........................... 3-4
......................... 3-23
......................... 2-31
......................... 2-32
......................... 2-32
......................... 2-32
......................... 2-31
Power Mirrors
............................................. 2-31
Overheated Engine Protection
Operating Mode
.......................................... 5-27
Owners, Canadian
............................................... ii
Owner’s Information ........................................ 7-1 0
P
Park (P)
Parking Shifting
Out
of ............................................ 2-25
Brake
........................................................ 2-22
Over Things That Burn
................................. 2-26
Park (P) Mechanism Check
........................... 6-13
Parking on
Hills .............................................. 4-58
Shifting Into
................................................ 2-23
Parking
Brake and Automatic Transmission
Park (P)
Part A
- Scheduled Maintenance Services ............ 6-4
Part B
- Owner Checks and Services ................ 6-10
Part C
- Periodic Maintenance Inspections .......... 6-14
Part D
- Recommended Fluids and Lubricants .... 6-16
Part E
- Maintenance Record ........................... 6-18
Passenger Air Bag Indicator
............................. 2-30
Passenger Air Bag Status Indicator
................... 3-30
PASSENGER DOOR AJAR
.............................. 3-60
Passenger Sensing System
.............................. 1-68
Passing
......................................................... 4-14
Passlock@
...................................................... 2-14
10