Automatic Dimming Rearview Mirror
with OnStar
®and Compass
Your vehicle may have an automatic dimming
rearview mirror with a compass and OnStar®
controls. For more information about OnStar®,
seeOnStar®System on page 144.
The automatic dimming feature turns on each time
the vehicle is started. To turn automatic dimming
off or on, press the left button below the mirror.
A green indicator light will be on when automatic
dimming is on.
There are also three OnStar
®buttons located at
the bottom of the mirror. See your dealer/retailer
for more information on the system and how
to subscribe to OnStar
®. SeeOnStar®System
on page 144for more information about the
service OnStar
®provides.
Compass Operation
Press the on/off button once to turn the compass
on or off.
When the ignition and the compass feature are
on, the compass will show two character boxes for
a few seconds. After a few seconds, the mirror
will display the current compass direction.
Compass Calibration
If after a few seconds the display does not show
a compass direction, (N for North for example),
there may be a strong magnetic eld interfering
with the compass. Such interference may be
caused by a magnetic antenna mount, note pad
holder, or similar object. If the letter C appears
in the compass window, the compass may need
to be reset or calibrated.
The mirror can be calibrated by driving the vehicle
in circles at 5 mph (8 km/h) or less until the
display reads a direction.
139
Anti-Lock Brake System
Warning Light
Your vehicle may have
the Anti-Lock Brake
System (ABS).
This light will come on when your engine is
started and may stay on for several seconds.
This is normal.If the light stays on, turn the ignition to off.
If the light comes on and the chime sounds when
you are driving, stop as soon as possible and
turn the ignition off. Then start the engine again
to reset the system. If the light still stays on,
or comes on again while you are driving, your
vehicle needs service. If the regular brake system
warning light is not on, you still have brakes,
but you do not have anti-lock brakes. If the regular
brake system warning light is also on, you do
not have anti-lock brakes and there is a problem
with your regular brakes. SeeBrake System
Warning Light on page 206earlier in this section.
The ABS warning light will come on brie y
when you turn the ignition key to ON. This is
normal. If the light does not come on then,
have it xed so it will be ready to warn you if
there is a problem.
208
DIC Warnings and Messages
These messages appear if there is a problem
detected in one of your vehicle’s systems.
A message will clear when that condition is no
longer present on the vehicle. To acknowledge a
message and clear it from the display, press
any of the three DIC buttons. If the condition is
still present, the warning message will come back
on the next time the vehicle is turned off and
back on. With most messages, a warning chime
sounds when the message displays. Your
vehicle may have other warning messages.
AUTO (Automatic) LIGHTS OFF:This message
displays if the automatic headlamp system is
disabled with the headlamp switch.
AUTO (Automatic) LIGHTS ON:This message
displays if the automatic headlamp system is
enabled with the headlamp switch.BRAKE FLUID:This message displays to
inform the driver that the brake uid level is low
while the ignition is in ON. The brake system
warning light on the instrument panel cluster
also comes on. SeeBrake System Warning Light
on page 206for more information. Have the
brake system serviced by your dealer/retailer
as soon as possible.
CHANGE OIL SOON:This message displays
when the life of the engine oil has expired and it
should be changed.
When you acknowledge the CHANGE OIL SOON
message by clearing it from the display, you still
must reset the engine oil life system separately.
SeeEngine Oil Life System on page 362,Engine
Oil on page 359, andScheduled Maintenance
on page 460for more information.
222
XM Radio Messages
Radio Display Message Condition Action Required
XL
(Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
Updating Updating
encryption codeThe encryption code in the receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When the vehicle
is moved into an open area, the signal should return.
Loading XM Acquiring channel audio
(after 4 second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
CH Off Air Channel not in service This channel is not currently in service. Tune to another
channel.
CH Unavail Channel no longer
availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the
presets, choose another station for that preset button.
No Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
259
If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both provide
easier cold starting and better protection for
the engine at extremely low temperatures.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM
Standard GM6094M are all you need for good
performance and engine protection.
Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter.
This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil
life system to work properly, you must reset the
system every time the oil is changed.When the system has calculated that oil life has
been diminished, it will indicate that an oil change
is necessary. A CHANGE OIL SOON message
will come on. SeeDIC Warnings and Messages on
page 222. Change the oil as soon as possible
within the next 600 miles (1 000 km). It is possible
that, if you are driving under the best conditions,
the oil life system may not indicate that an oil
change is necessary for over a year. However, the
engine oil and lter must be changed at least
once a year and at this time the system must be
reset. Your dealer has GM-trained service
people who will perform this work using genuine
GM parts and reset the system. It is also important
to check the oil regularly and keep it at the
proper level.
If the system is ever reset accidentally, you must
change the oil at 3,000 miles (5 000 km) since
your last oil change. Remember to reset the oil life
system whenever the oil is changed.
362