cooling PONTIAC G5 2007 Owners Manual

Trunk
To release the trunk lid from the outside, use the
key or the remote keyless entry transmitter, if
equipped.
{CAUTION:
It can be dangerous to drive with the
trunk lid open because carbon monoxide
(CO) gas can come into your vehicle. You
cannot see or smell CO. It can cause
unconsciousness and even death. If you
must drive with the trunk lid open or if
CAUTION: (Continued)
CAUTION: (Continued)
electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or
cooling system to its highest speed
and select the control setting that will
force outside air into your vehicle. See
Climate Control System.
If you have air outlets on or under the
instrument panel, open them all the
way.
SeeEngine Exhaust on page 123.
98

The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very high
electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s
output and the vehicle’s electrical needs. It can
increase engine idle speed to generate more
power, whenever needed. It can temporarily reduce
the power demands of some accessories.
Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action may
be noticeable to the driver.Battery Run-Down Protection
Your vehicle has a battery saver feature designed
to protect your vehicle’s battery.
When any interior lamp is left on and the ignition is
turned off, the battery rundown protection system
will automatically turn the lamp off after 20 minutes.
This will avoid draining the battery.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
electrical equipment such as a cellular phone
or CB radio.
The accessory power outlet is located in the
center console, rearward of the shift lever.
To use the outlet, remove the cover. When not in
use, always cover the outlet with the protective cap.
Notice:Leaving electrical equipment on for
extended periods will drain the battery. Always
turn off electrical equipment when not in use
and do not plug in equipment that exceeds the
maximum amperage rating.
150

Climate Controls
Climate Control System
With this system you can control the heating,
cooling, and ventilation for the vehicle.
Operation
To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs about half of the
air to the instrument panel outlets, and then directs
the remaining air to the oor outlets. Cooler air is
directed to the upper outlets and warmer air to the
oor outlets.
6(Floor):This mode directs most of the air to
the oor outlets with some air directed to the
windshield and side windows.
The left knob can also be used to select defog or
defrost mode. Information on defogging and
defrosting can be found later in this section.
9(Fan):Turn the center knob clockwise or
counterclockwise to increase or decrease the fan
speed. In any setting other than off, the fan will run
continuously with the ignition on. The fan must be
turned on to run the air conditioning compressor.
9(Off):To turn the fan off, turn the knob all the
way counterclockwise to the off position.
Temperature Control:Turn the right knob
clockwise or counterclockwise to increase or
decrease the temperature inside the vehicle.
Vehicles with Air Conditioning shown,
without Air Conditioning similar
152

COOLING MODE ON
This message may display on some vehicles.
Under severe conditions, hot ambient
temperatures, steep grades, and towing, your
vehicle may experience more transaxle shifting.
This is temporary and normal under these
conditions. This does not require engine or
transaxle service.
CRUISE ENGAGED
This message displays when the cruise control
system is active. SeeCruise Control on page 143
for more information.
DOOR AJAR
This message displays if one or more of the
vehicle’s doors are not closed properly. When this
message displays, make sure that the door(s)
are closed completely.
ENGINE DISABLED
This message displays if the starting of the engine
is disabled. Have your vehicle serviced by your
dealer immediately.
ENG (Engine) PWR (Power) REDUCED
This message displays to inform you that the
vehicle has reduced engine power to avoid
damaging the engine. Reduced engine power
can affect the vehicle’s ability to accelerate. If
this message is on, but there is no reduction in
performance, proceed to your destination. The
performance may be reduced the next time the
vehicle is driven. The vehicle may be driven at a
reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime
this message stays on, the vehicle should be taken
to your dealer for service as soon as possible.
ICE POSSIBLE
This message displays when the outside air
temperature is cold enough to create icy road
conditions. Adjust your driving accordingly.
KEY FOB BATT (Battery) LOW
This message displays if the Remote Keyless
Entry (RKE) transmitter battery is low. Replace
the battery in the transmitter. See “Battery
Replacement” underRemote Keyless Entry (RKE)
System Operation on page 87.
178

If you drive regularly in steep country, or if you are
planning to visit there, here are some tips that
can make your trips safer and more enjoyable.
Keep your vehicle in good shape. Check
all uid levels and also the brakes, tires,
cooling system, and transaxle. These parts
can work hard on mountain roads.
{CAUTION:
If you do not shift down, your brakes
could get so hot that they would not work
well. You would then have poor braking or
even none going down a hill. You could
crash. Shift down to let your engine assist
your brakes on a steep downhill slope.
{CAUTION:
Coasting downhill in NEUTRAL (N) or with
the ignition off is dangerous. Your brakes
will have to do all the work of slowing
down. They could get so hot that they
would not work well. You would then have
poor braking or even none going down a
hill. You could crash. Always have your
engine running and your vehicle in gear
when you go downhill.
Know how to go down hills. The most important
thing to know is this: let your engine do some of
the slowing down. Shift to a lower gear when
you go down a steep or long hill.
Know how to go uphill. You may want to shift
down to a lower gear. The lower gears help
cool your engine and transaxle, and you can
climb the hill better.
242

When towing under severe conditions such as hot
ambient temperatures or steep grades, your
vehicle may experience more transaxle shifting.
A COOLING MODE ON message may also appear
in the DIC. This alerts the driver that the shifting
mode is in progress and is aiding engine cooling.
SeeDIC Warnings and Messages on page 177
DIC Warnings and Messages for more information.
Parking on Hills
{CAUTION:
You really should not park your vehicle,
with a trailer attached, on a hill.
If something goes wrong, your rig could
start to move. People can be injured, and
both your vehicle and the trailer can be
damaged.But if you ever have to park your rig on a hill,
here is how to do it:
1. Apply your regular brakes, but do not shift into
PARK (P) for an automatic transaxle, or into
gear for a manual transaxle. When parking
uphill, turn your wheels away from the
curb. When parking downhill, turn your wheels
into the curb.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release
the regular brakes until the chocks absorb
the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift into PARK (P) for
an automatic transaxle or REVERSE (R) for a
manual transaxle.
5. Release the regular brakes.
263

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal
down while you:
Start your engine.
Shift into a gear.
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the
chocks.
4. Stop and have someone pick up and store
the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when
you are pulling a trailer. SeeScheduled
Maintenance on page 375for more on this.
Things that are especially important in trailer
operation are automatic transaxle uid (do not
overll), engine oil, drive belt, cooling system and
brake system.
Each of these is covered in this manual, and the
Index will help you nd them quickly. If you
are trailering, it is a good idea to review this
information before you start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat
during severe operating conditions. SeeEngine
Overheating on page 290.
264

Service........................................................ 268
Accessories and Modications................... 268
California Proposition 65 Warning.............. 269
Doing Your Own Service Work.................. 269
Adding Equipment to the Outside of
Your Vehicle.......................................... 270
Fuel............................................................. 270
Gasoline Octane........................................ 270
Gasoline Specications.............................. 271
California Fuel........................................... 271
Additives................................................... 272
Fuels in Foreign Countries........................ 273
Filling the Tank......................................... 274
Filling a Portable Fuel Container............... 276
Checking Things Under the Hood.............. 276
Hood Release........................................... 277
Engine Compartment Overview.................. 278
Engine Oil................................................. 279
Engine Oil Life System.............................. 282
Engine Air Cleaner/Filter............................ 284
Automatic Transaxle Fluid......................... 286
Manual Transaxle Fluid............................. 286
Hydraulic Clutch........................................ 286Engine Coolant.......................................... 287
Coolant Surge Tank Pressure Cap............ 290
Engine Overheating................................... 290
Cooling System......................................... 292
Windshield Washer Fluid........................... 297
Brakes...................................................... 298
Battery...................................................... 303
Jump Starting............................................ 304
Headlamp Aiming........................................ 309
Bulb Replacement....................................... 312
Halogen Bulbs........................................... 312
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps............. 313
Center High-Mounted Stoplamp
(CHMSL)................................................ 315
Taillamps and Turn Signal Lamps
(Coupe)................................................. 316
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps (Sedan)......................... 316
Back-Up Lamps (Coupe)........................... 317
License Plate Lamp................................... 318
Replacement Bulbs................................... 318
Section 5 Service and Appearance Care
265

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 284.
B. Engine Oil Fill Cap. See “When to Add Engine
Oil” underEngine Oil on page 279.
C. Engine Oil Dipstick (Out of View). See
“Checking Engine Oil” underEngine Oil on
page 279.
D. Brake Master Cylinder Reservoir. See “Brake
Fluid” underBrakes on page 298andHydraulic
Clutch on page 286.
E. Engine Compartment Fuse Block. SeeEngine
Compartment Fuse Block on page 365.
F. Remote Positive (+) Terminal. SeeJump
Starting on page 304.
G. Remote Negative (−) Terminal. SeeJump
Starting on page 304.
H. Engine Coolant Surge Tank. SeeCooling
System on page 292.
I. Windshield Washer Fluid Reservoir. See
“Adding Washer Fluid” underWindshield
Washer Fluid on page 297.Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 278
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several
minutes to drain back into the oil pan. If you
do not do this, the oil dipstick might not
show the actual level.
2. Pull the dipstick and clean it with a paper
towel or cloth, then push it back in all the
way. Remove it again, keeping the tip down
and check the level.
279

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 290.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.
287