coolant temperature GMC SIERRA CLASSIC 2007 User Guide

The coolant level should
be at or above the FULL
COLD mark. If it is not,
you may have a leak at
the pressure cap or in
the radiator hoses,
heater hoses, radiator,
water pump, or
somewhere else in the
cooling system.
{CAUTION:
Heater and radiator hoses, and other
engine parts, can be very hot. Do not
touch them. If you do, you can be burned.
Do not run the engine if there is a leak.
If you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.If your vehicle has an electric engine cooling
fan, check the coolant temperature gage.
If the coolant temperature is approximately
232°F (111°C), the electric cooling fan should be
running. If it is not, your vehicle needs service.
Turn off the engine.
If your vehicle has an engine-driven cooling fan,
start the engine again and see if the fan speed
increases when idle speed is doubled by pushing
the accelerator pedal down. If it does not, your
vehicle needs service. Turn off the engine.
Notice:Engine damage from running your
engine without coolant is not covered by your
warranty. SeeOverheated Engine Protection
Operating Mode (V8 Engines Only) on page 508
for information on driving to a safe place in
an emergency.
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
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.
510

Windshield Washer Fluid
What to Use
When you need windshield washer uid, be sure
to read the manufacturer’s instructions before
use. If you will be operating your vehicle in an area
where the temperature may fall below freezing,
use a uid that has sufficient protection against
freezing.
Adding Washer Fluid
Your vehicle has a low washer uid message that
comes on when the washer uid is low. The
message is displayed for 15 seconds at the start
of each ignition cycle. When the CHECK WASHER
FLUID message is displayed, you will need to
add washer uid to the windshield washer
uid reservoir.
Open the cap with the
washer symbol on it.
Add washer uid
until the tank is full. See
Engine Compartment
Overview on page 480
for reservoir location.Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions
for adding water.
Do not mix water with ready-to-use washer
uid. Water can cause the solution to
freeze and damage your washer uid tank
and other parts of the washer system.
Also, water does not clean as well
as washer uid.
Fill your washer uid tank only
three-quarters full when it is very cold.
This allows for expansion if freezing
occurs, which could damage the tank if it
is completely full.
Do not use engine coolant (antifreeze) in
your windshield washer. It can damage
your washer system and paint.
516

(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, body door
hinges, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, tailgate hinges,
tailgate linkage, tailgate handle pivot points,
latch bolt, fuel door hinge, locks, and folding seat
hardware. More frequent lubrication may be
required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.(h)Change automatic transmission uid and lter
if the vehicle Gross Vehicle Weight Rating
(GVWR) is over 8600 lbs or if the vehicle is mainly
driven under one or more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 502 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
624

Cigarette Lighter.......................................... 229
Cleaning
Aluminum or Chrome-Plated Wheels........ 594
Exterior Lamps/Lenses............................. 593
Fabric/Carpet........................................... 590
Finish Care.............................................. 593
Inside of Your Vehicle.............................. 589
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 591
Leather.................................................... 591
Tires........................................................ 595
Underbody Maintenance........................... 596
Washing Your Vehicle.............................. 592
Weatherstrips........................................... 592
Windshield and Wiper Blades................... 594
Climate Control System............................... 230
Dual......................................................... 231
Dual Automatic......................................... 235
Outlet Adjustment..................................... 243
Clutch, Hydraulic......................................... 501
Collision Damage Repair............................. 651
Comfort Guides, Rear Safety Belt................. 41
Compass............................................176, 180
Content Theft-Deterrent............................... 131
Control of a Vehicle..................................... 360Coolant
Engine Temperature Gage........................ 256
Heater, Engine......................................... 139
Surge Tank Pressure Cap........................ 505
Cooling System........................................... 508
Cruise Control............................................. 217
Cruise Control Light.................................... 263
Cupholder(s)................................................ 202
Customer Assistance Information
Courtesy Transportation........................... 647
Customer Assistance for Text
Telephone (TTY) Users ......................... 642
Customer Assistance Offices.................... 642
Customer Satisfaction Procedure.............. 638
GM Mobility Reimbursement Program...... 643
Reporting Safety Defects to General
Motors.................................................. 656
Reporting Safety Defects to the
Canadian Government.......................... 656
Reporting Safety Defects to the
United States Government.................... 656
Roadside Assistance Program.................. 644
Service Publications Ordering
Information........................................... 657
662

Engine (cont.)
Check and Service Engine Soon Light..... 258
Coolant.................................................... 502
Coolant Heater......................................... 139
Coolant Temperature Gage...................... 256
Drive Belt Routing.................................... 633
Engine Compartment Overview................ 480
Exhaust................................................... 174
Fan Noise................................................ 514
Oil ........................................................... 486
Oil Life System........................................ 489
Overheated Protection Operating Mode.... 508
Overheating............................................. 505
Starting.................................................... 137
Entry Lighting.............................................. 227
Event Data Recorders (EDR)...................... 650
Exit Lighting................................................ 227
Extender, Safety Belt..................................... 43
F
Filter
Engine Air Cleaner................................... 491
Finish Damage............................................ 596
Fixed Mast Antenna.................................... 353
Flashers, Hazard Warning........................... 212Flash-to-Pass.............................................. 216
Flat Tire...................................................... 563
Flat Tire, Changing...................................... 564
Flat Tire, Storing......................................... 584
Fluid
Automatic Transmission...................494, 497
Manual Transmission................................ 500
Power Steering........................................ 515
Windshield Washer.................................. 516
Fog Lamps.................................................. 225
Four-Wheel Drive...............................153, 528
Four-Wheel-Drive Light................................ 263
Front Axle................................................... 529
Front Reading Lamps.................................. 227
Front Storage Area...................................... 202
Fuel............................................................ 470
Additives.................................................. 472
California Fuel.......................................... 471
E85 (85% Ethanol)................................... 473
Filling a Portable Fuel Container.............. 477
Filling Your Tank...................................... 474
Fuels in Foreign Countries....................... 474
Gage....................................................... 264
Gasoline Octane...................................... 470
Gasoline Specications............................ 471
Low Warning Light................................... 265
664

Fuses
Center Instrument Panel Fuse Block........ 602
Fuses and Circuit Breakers...................... 600
Instrument Panel Fuse Block................... 600
Underhood Fuse Block............................. 603
Windshield Wiper..................................... 599
G
Gage
Engine Coolant Temperature.................... 256
Fuel......................................................... 264
Oil Pressure............................................. 262
Speedometer........................................... 246
Tachometer.............................................. 246
Transmission Temperature........................ 257
Voltmeter Gage........................................ 253
Garage Door Opener..........................191, 192
Gasoline
Octane..................................................... 470
Specications........................................... 471
Glove Box................................................... 202
GM Mobility Reimbursement Program.......... 643
H
Hazard Warning Flashers............................ 212
Head Restraints............................................ 18
Headlamps.........................................221, 533
Automatic Headlamp System.................... 223
Bulb Replacement.................................... 532
Daytime Running Lamps.......................... 222
Flash-to-Pass........................................... 216
Front Turn Signal, Sidemarker and
Daytime Running Lamps....................... 534
Halogen Bulbs......................................... 532
High/Low Beam Changer......................... 215
On Reminder........................................... 222
Pickup Box Identication and Fender
Marker Lamps...................................... 538
Roof Marker Lamps................................. 535
Heated Seats................................................ 11
Heater................................................230, 231
Heater......................................................... 235
Highbeam On Light..................................... 263
Highway Hypnosis....................................... 399
Hill and Mountain Roads............................. 400
Hood
Checking Things Under............................ 478
Release................................................... 479
665