oil GMC ENVOY XL 2005 Owners Manual
[x] Cancel search | Manufacturer: GMC, Model Year: 2005, Model line: ENVOY XL, Model: GMC ENVOY XL 2005Pages: 480, PDF Size: 11.77 MB
Page 97 of 480
Engine Coolant Heater
Your vehicle may have an engine coolant heater. In
very cold weather, 0°F (−18°C) or colder, the engine
coolant heater can help. You will get easier starting
and better fuel economy during engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle.
At temperatures above 32°F (0°C), use of the coolant
heater is not required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The cord is located on the driver’s side of the
engine compartment, behind the battery.
3. Plug it into a normal, grounded 110-Volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord
will not reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you do not, it could
be damaged.
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 will be
parking your vehicle. The dealer can give you the
best advice for that particular area.
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Page 98 of 480
Displacement on Demand (DoD)
Your vehicle’s engine may be equipped with
Displacement on Demand (DoD). This system allows
the engine to operate on either four or eight cylinders,
depending on your driving demands.
The system determines when to switch into and out
of the four-cylinder mode by rst making sure that
certain enabling criteria are met, such as coolant and
oil temperatures, and the transmission being in
either THIRD (3) or FOURTH (4) gear.
When greater power demands are required, such as
accelerating from a stop, passing, or merging onto
a freeway, the system will maintain eight-cylinder
operation. When less power is required, such a
cruising at a constant vehicle speed, the system will
automatically enable the four-cylinder mode, allowing
your vehicle to achieve better fuel economy.
Automatic Transmission Operation
There are several different positions for your gear
shift lever.
PARK (P):This position locks the rear wheels. It is
the best position to use when you start the engine
because your vehicle cannot move easily.
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Page 138 of 480
Oil Pressure Gage........................................3-44
Change Engine Oil Light................................3-45
Security Light...............................................3-45
Cruise Control Light......................................3-46
Reduced Engine Power Light.........................3-46
Highbeam On Light.......................................3-46
Service Four-Wheel Drive
Warning Light...........................................3-47
Check Gages Warning Light...........................3-47
Gate Ajar Light.............................................3-47
Fuel Gage...................................................3-48
Low Fuel Warning Light.................................3-48
Check Gas Cap Light....................................3-48
Driver Information Center (DIC).......................3-49
DIC Operation and Displays...........................3-50
DIC Warnings and Messages.........................3-53
DIC Vehicle Customization.............................3-56Audio System(s).............................................3-62
Setting the Time...........................................3-62
Radio with CD (Base Level)...........................3-63
Radio with CD (MP3)....................................3-73
Radio with Cassette and CD..........................3-87
Radio with Six-Disc CD................................3-100
Navigation/Radio System..............................3-113
Rear Seat Entertainment System...................3-113
Rear Seat Audio (RSA)................................3-124
Theft-Deterrent Feature................................3-125
Audio Steering Wheel Controls......................3-126
Radio Reception.........................................3-127
Care of the Cassette Tape Player.................3-127
Care of Your CDs and DVDs........................3-128
Care of the CD and DVD Player...................3-128
Fixed Mast Antenna....................................3-129
XM™ Satellite Radio Antenna System............3-129
Chime Level Adjustment...............................3-129
Section 3 Instrument Panel
3-2
Page 180 of 480
Oil Pressure Gage
The oil pressure gage shows the engine oil pressure
in psi (pounds per square inch) when the engine
is running. Canadian vehicles indicate pressure in
kPa (kilopascals).
{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.
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused
by a dangerously low oil level or other problems causing
low oil pressure. United States
Canada
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Page 181 of 480
Change Engine Oil Light
When this light comes on,
it means that an oil change
and other maintenance
procedures are required for
your vehicle.
SeeScheduled Maintenance on page 6-4andEngine
Oil on page 5-15for more information.
Once the engine oil has been changed, the change
engine oil light must be reset. Until it is reset, the light
will be displayed when the engine is on.
Security Light
This light will come on
brie y when you turn the
key toward START.
The light will stay on until the engine starts. If the light
ashes, the Passlock
®system has entered a tamper
mode. If the vehicle fails to start, seePasslock®
on page 2-18.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
®
system. Your vehicle will not be protected by Passlock®,
and you should see your dealer.
Also, seeContent Theft-Deterrent on page 2-17for
additional information regarding the security light.
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