Engine Coolant
If your vehicle has the DURAMAX®Diesel engine,
see the DURAMAX®Diesel manual for more
information.
The cooling system in your vehicle is lled with
DEX-COOL
®engine coolant. This coolant is
designed to remain in your vehicle for ve years or
150,000 miles (240 000 km), whichever occurs
rst, if you add only DEX-COOL
®extended
life coolant.
The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 516.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down
to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would not
be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your
vehicle.
513
Vehicle Customization, DIC......................... 289
Vehicle Data Collection and Event Data
Recorders................................................ 656
Vehicle Identi cation
Number (VIN).......................................... 607
Service Parts Identi cation Label.............. 607
Vehicle Privacy............................................ 656
Ventilation Adjustment.................................. 245
Visors.......................................................... 127
Voltmeter Gage........................................... 255
W
Warning Lights, Gages and Indicators......... 246
Warnings
DIC Warnings and Messages................... 279
Hazard Warning Flashers......................... 211
Other Warning Devices............................ 211
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 572
Different Size........................................... 570
Replacement............................................ 573
Where to Put the Restraint............................ 56Windows..................................................... 124
Manual..................................................... 124
Power...................................................... 125
Sliding Rear............................................. 126
Windshield
Rainsense™ II Wipers............................. 216
Washer.................................................... 217
Washer Fluid........................................... 527
Wiper Blade Replacement........................ 549
Wiper Blades, Cleaning............................ 603
Wiper Fuses............................................ 608
Wipers..................................................... 215
Winter Driving............................................. 418
X
XM Radio Messages................................... 353
XM™ Satellite Radio Antenna System......... 371
Y
Your Vehicle and the Environment............... 621
680
