warning lights GMC YUKON 2007 User Guide

Engine Coolant
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 448.
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.
445

Transmission
Fluid, Automatic....................................... 440
Transmission Operation, Automatic.............. 145
Trip Odometer............................................. 227
Turn and Lane-Change Signals................... 194
Turn Signal/Multifunction Lever.................... 193
U
Ultrasonic Rear Parking Assist (URPA)........ 208
Understanding Radio Reception................... 336
Uniform Tire Quality Grading....................... 501
Universal Home Remote System........166, 167
Operation........................................168, 174
V
Vehicle
Control..................................................... 346
Damage Warnings....................................... 5
Loading.................................................... 392
Symbols...................................................... 5
Vehicle Customization, DIC......................... 262Vehicle Data Collection and Event Data
Recorders................................................ 582
Vehicle Identication
Number (VIN).......................................... 536
Service Parts Identication Label.............. 536
Ventilation Adjustment.................................. 222
Visors.......................................................... 134
Voltmeter Gage........................................... 232
W
Warning Lights, Gages and Indicators......... 225
Warnings
DIC Warnings and Messages................... 252
Hazard Warning Flashers......................... 192
Other Warning Devices............................ 192
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 502
Different Size........................................... 500
Replacement............................................ 503
Where to Put the Restraint............................ 72
607