2007 GMC SIERRA heating

Cooling System
If your vehicle has the DURAMAX®Diesel engine,
see the DURAMAX®Diesel manual for more
information.
When you decide it is safe to lift the hood, here is
what you will see:
A. Coolant Surge Tank
B. Coolant Surge Tank Pressure Cap
C. Engine Cooling Fan
{CAUTION:
An electric engine cooling fan can start
even when the engine is not running.
To avoid injury, always keep hands,
clothing, and tools away from any engine
cooling fan.
If the coolant inside the coolant surge tank is
boiling, do not do anything else until it cools down.
The vehicle should be parked on a level surface.
Check the coolant level after the system cools
down. Some amount of coolant may be lost due
to overheating.
5.3L Engine (4.3L, 4.8L and 6.0L Similar)
520

3. Install the new blade onto the arm connector
and make sure the grooved areas are fully set
in the locked position.
For the proper type and size, seeNormal
Maintenance Replacement Parts on page 638.
Tires
Your new vehicle comes with high-quality tires
made by a leading tire manufacturer. If you ever
have questions about your tire warranty and where
to obtain service, see your GM Warranty booklet for
details. For additional information refer to the tire
manufacturer’s booklet included with your vehicle.
{CAUTION:
Poorly maintained and improperly used
tires are dangerous.
Overloading your vehicle’s tires can
cause overheating as a result of too
much friction. You could have an
air-out and a serious accident. See
Loading Your Vehicle on page 425.
Underinated tires pose the same
danger as overloaded tires. The
resulting accident could cause serious
injury. Check all tires frequently to
maintain the recommended pressure.
CAUTION: (Continued)
550

Door (cont.)
Rear Door Security Locks........................ 120
Rear Doors.............................................. 121
Driver
Position, Safety Belt................................... 28
Driver Information Center (DIC)................... 267
DIC Operation and Displays............268, 275
DIC Vehicle Customization....................... 289
DIC Warnings and Messages................... 279
Driving
At Night................................................... 407
City.......................................................... 412
Defensive................................................. 374
Drunken................................................... 375
Freeway................................................... 413
Hill and Mountain Roads.......................... 416
In Rain and on Wet Roads...................... 408
Off-Road.................................................. 390
Recovery Hooks....................................... 424
Rocking Your Vehicle to Get it Out.......... 423
Winter...................................................... 418
Dual Automatic Climate Control System....... 238
Dual Tire Operation..................................... 560
DVD
Rear Seat Entertainment System............. 355E
Electrical System
Add-On Equipment................................... 608
Center Instrument Panel Fuse Block........ 611
Fuses and Circuit Breakers...................... 608
Instrument Panel Fuse Block................... 609
Power Windows and Other Power
Options................................................. 608
Underhood Fuse Block............................. 612
Windshield Wiper Fuses........................... 608
Engine
Air Cleaner/Filter...................................... 505
Check and Service Engine Soon Light..... 260
Coolant.................................................... 513
Coolant Heater......................................... 136
Coolant Temperature Gage...................... 258
Drive Belt Routing.................................... 639
Engine Compartment Overview................ 498
Exhaust................................................... 167
Fan Noise................................................ 525
Oil ........................................................... 500
Oil Life System........................................ 503
Overheated Protection Operating Mode.... 519
Overheating............................................. 516
Starting.................................................... 134
Entry Lighting.............................................. 226
669