2004 Oldsmobile Silhouette oil pressure

How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you'll be parking your
vehicle. The dealer can give you the best advice for that
particular area.
Automatic Transaxle Operation
Maximum engine speed is limited when you are in
PARK (P) or NEUTRAL (N), to protect driveline
components from improper operation.There are several different positions for your shift lever.
PARK (P):This gear position locks your front wheels.
It is the best position to use when you start your engine
because your vehicle cannot move easily.
Ensure the shift lever is fully in PARK (P) before starting
the engine. Your vehicle has an automatic transaxle
shift lock control system. You have to fully apply
your regular brakes before you can shift from PARK (P)
when the ignition key is in RUN. As you step on the
brake pedal while in PARK (P), you may hear a
click from the solenoid of the system. This ensures that
the system is operating properly.
If you cannot shift out of PARK (P), ease pressure on
the shift lever ± push the shift lever all the way into
PARK (P) as you maintain brake application. Then move
the shift lever into the gear you wish. See
Shifting Out
of Park (P) on page 2-41.
2-34

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-7
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-8
Exterior Lamps.............................................3-16
Interior Lamps..............................................3-18
Switchbanks.................................................3-23
Instrument Panel Switchbank..........................3-23
Overhead Console Switchbank.......................3-24
Ultrasonic Rear Parking Assist (URPA)............3-24
Accessory Power Outlets...............................3-27
Climate Controls............................................3-28
Climate Control System.................................3-28
Dual Climate Control System..........................3-31
Outlet Adjustment.........................................3-34
Rear Climate Control System
(Without Entertainment System)...................3-34
Rear Climate Control System
(With Entertainment System).......................3-36
Passenger Compartment Air Filter...................3-39
Warning Lights, Gages and Indicators.............3-41
Instrument Panel Cluster................................3-42
Speedometer and Odometer...........................3-43Safety Belt Reminder Light.............................3-44
Air Bag Readiness Light................................3-45
Brake System Warning Light..........................3-46
Anti-Lock Brake System Warning Light.............3-47
Traction Control System (TCS)
Warning Light...........................................3-47
Engine Coolant Temperature Gage..................3-48
Malfunction Indicator Lamp.............................3-49
Fuel Gage...................................................3-52
Message Center.............................................3-53
Service Traction System
Warning Message......................................3-53
Traction Active Message................................3-54
Engine Coolant Temperature
Warning Message......................................3-54
Charging System Indicator Message................3-55
Low Oil Pressure Message............................3-55
Change Engine Oil Message..........................3-56
Power Sliding Door Warning Message.............3-57
Door Ajar Warning Message...........................3-57
Rear Hatch Ajar Warning Message..................3-58
PASS-Key
žIII Security Message....................3-58
All-Wheel Drive Disable
Warning Message......................................3-59
Low Fuel Warning Message...........................3-59
Section 3 Instrument Panel
3-1

Charging System Indicator Message
The charging system
battery symbol will come
on in the message
center when you turn on
the ignition as a check
to show you it is working.
It will remain on as long as the engine is not running.
It should go out once the engine is running. If it stays
on, or comes on while you are driving, you may have
a problem with the charging system. It could indicate
that you have problems with a generator drive belt,
or another electrical problem. Have it checked
right away. Driving while this indicator appears in the
message center could drain your battery.
If you must drive a short distance with the message
on, be certain to turn off all your accessories, such as
the radio and air conditioner.
Low Oil Pressure Message
Your vehicle is equipped with a low oil pressure warning
message.
Your oil pressure message lets you know when you
may have a problem with your engine oil pressure.
United StatesCanada
3-55

When the engine is running and this message appears,
the engine oil level may be too low. There may also
be another problem causing low oil pressure.
{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches ®re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be covered
by your warranty. Always follow the maintenance
schedule in this manual for changing engine oil.
Change Engine Oil Message
If this message comes on and stays on after you started
the engine, have the oil changed.
For additional information on when to change the oil
and resetting the system, see
Engine Oil on page 5-13. United States
Canada
3-56

·Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
·Lamps:Are they all working? Are the lenses clean?
·Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all in¯ated
to the recommended pressure?
·Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
·Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as ªhighway
hypnosisº? Or is it just plain falling asleep at the
wheel? Call it highway hypnosis, lack of awareness,
or whatever.There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on
the road, the drone of the engine, and the rush of
the wind against the vehicle that can make you sleepy.
Do not let it happen to you! If it does, your vehicle
can leave the road in
less than a second,and you
could crash and be injured.
What can you do about highway hypnosis?
First, be aware that it can happen.
Then here are some tips:
·Make sure your vehicle is well ventilated,
with a comfortably cool interior.
·Keep your eyes moving. Scan the road ahead
and to the sides. Check your mirrors and your
instruments frequently.
·If you get sleepy, pull off the road into a rest,
service or parking area and take a nap, get some
exercise, or both. For safety, treat drowsiness
on the highway as an emergency.
4-23

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transaxle Fluid..............................5-19
Engine Coolant.............................................5-22
Radiator Pressure Cap..................................5-25
Engine Overheating.......................................5-25
Cooling System............................................5-28
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-37
Brakes........................................................5-38Battery........................................................5-41
Jump Starting...............................................5-42
All-Wheel Drive..............................................5-48
Bulb Replacement..........................................5-50
Halogen Bulbs..............................................5-50
Headlamps..................................................5-50
Front Turn Signal, Sidemarker and
Parking Lamps..........................................5-52
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-54
Replacement Bulbs.......................................5-56
Windshield Wiper Blade Replacement..............5-56
Tires..............................................................5-58
In¯ation - Tire Pressure.................................5-67
Tire Inspection and Rotation...........................5-68
When It Is Time for New Tires.......................5-70
Buying New Tires.........................................5-70
Uniform Tire Quality Grading..........................5-71
Wheel Alignment and Tire Balance..................5-73
Wheel Replacement......................................5-73
Tire Chains..................................................5-74
Accessory In¯ator.........................................5-74
If a Tire Goes Flat........................................5-76
Changing a Flat Tire.....................................5-76
Compact Spare Tire......................................5-91
Section 5 Service and Appearance Care
5-1

A. Underhood Fuse Block.
SeeFuses and Circuit Breakers on page 5-101.
B. Remote Positive (+) Terminal.
See
Jump Starting on page 5-42.
C. Windshield Washer Fluid Reservoir.
See
Windshield Washer Fluid on page 5-37.
D. Radiator Pressure Cap.
See
Radiator Pressure Cap on page 5-25.
E. Power Steering Fluid Reservoir.
See
Power Steering Fluid on page 5-36.
F. Engine Oil Fill Cap.
See
Engine Oil on page 5-13.
G. Engine Oil Dipstick.
See
Engine Oil on page 5-13.
H. Transaxle Fluid Dipstick.
See
Automatic Transaxle Fluid on page 5-19.
I. Brake Master Cylinder Reservoir.
See
Brakes on page 5-38.
J. Engine Air Cleaner/Filter.
See
Engine Air Cleaner/Filter on page 5-18.
K. Coolant Recovery Tank.
See
Cooling System on page 5-28.
Engine Oil
Checking Engine Oil
It is a good idea to check your 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. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil
dipstick might not show the actual level.
Pull out 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.
5-13

{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
Occasionally check the coolant level in the radiator.
For information on how to add coolant to the radiator,
see
Cooling System on page 5-28.
Radiator Pressure Cap
Notice:The radiator cap on your vehicle is a
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap line
up with the over¯ow tube on the radiator ®ller neck.
The radiator pressure cap is located at the front of the
engine compartment on the passenger's side of the
vehicle. See
Engine Compartment Overview on
page 5-12for more information on location.
Engine Overheating
You will ®nd an engine coolant temperature gage on
your vehicle's instrument panel cluster. SeeEngine
Coolant Temperature Gage on page 3-48. You
also have an engine coolant temperature warning
message on your instrument panel. See
Engine Coolant
Temperature Warning Message on page 3-54.
Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ®ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signi®cant loss in power and engine
performance. The temperature gage will indicate
an overheat condition exists. Driving extended
miles (km) and/or towing a trailer in the overheat
protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair the
cause of coolant loss, change the oil and reset the oil
life system. See
Engine Oil on page 5-13.
5-25