2007 CHEVROLET SUBURBAN lights

Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.Driving in Rain and on Wet Roads
Rain and wet roads can mean driving trouble. On
a wet road, you cannot stop, accelerate, or
turn as well because your tire-to-road traction is
not as good as on dry roads. And, if your tires do
not have much tread left, you will get even less
traction.
390

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 473.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.
470

W
Warning Lights, Gages and Indicators......... 242
Warnings
DIC Warnings and Messages................... 270
Hazard Warning Flashers......................... 204
Other Warning Devices............................ 204
Safety and Symbols..................................... 4
Vehicle Damage.......................................... 5
Wheels
Alignment and Tire Balance..................... 528
Different Size........................................... 526
Replacement............................................ 528
Where to Put the Restraint............................ 72
Windows..................................................... 132
Power...................................................... 133
Windshield
Backglass, and Wiper Blades,
Cleaning............................................... 558
Rainsense™ II Wipers............................. 208Windshield (cont.)
Washer.................................................... 209
Washer Fluid........................................... 485
Wiper Blade Replacement........................ 505
Wiper Fuses............................................ 564
Wipers..................................................... 207
Windshield, Rear Washer/Wiper................... 210
Winter Driving............................................. 400
X
XM Radio Messages................................... 335
XM™ Satellite Radio Antenna System......... 354
Y
Your Vehicle and the Environment............... 576
634