
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
Daytime Running Lamps (DRL) are required on all
vehicles rst sold in Canada.
The DRL system will make your low-beam headlamps
come on at a reduced brightness in daylight when
the following conditions are met:
The ignition is on.
The exterior lamp band is in the automatic position.
The transmission is not in PARK (P).
The light sensor determines it is daytime.
The parking brake is released.
When the DRL are on, the low-beam headlamps will be
on at a reduced brightness. The taillamps, sidemarker
and other lamps will not be on. The instrument panel will
not be lit up either.
When the exterior lamp band is turned to the headlamp
position, the low-beam headlamps come on. The
other lamps that come on with the headlamps will also
come on.When the headlamps are turned off, the regular lamps
will go off, and the low-beam headlamps come on
to the reduced brightness.
To idle your vehicle with the DRL off, move the shift
lever to PARK (P). The DRL will stay off until the shift
lever is moved out of the PARK (P) position.
The regular headlamp system should be turned on
when needed.
Automatic Headlamp System
When it is dark enough outside and the exterior lamps
control is in the automatic position, the headlamps
will come on automatically. SeeHeadlamps on
page 3-13.
Your vehicle has a light sensor located on top of the
instrument panel. Make sure it is not covered, or
the headlamps will be on when you do not need them.
The system may also turn on the headlamps when
driving through a parking garage or tunnel.
3-14

Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the voltage is
raised slightly to quickly put the charge back in. When the
state of charge is high, the voltage is lowered slightly to
prevent overcharging. If the vehicle has a voltmeter gage
or a voltage display on the Driver Information Center
(DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an alert will be displayed.
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 idlespeed 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. If so, a Driver Information Center (DIC) message
might be displayed, such as Battery Saver Active or
Service Battery Charging System. If this message is
displayed, it is recommended that the driver reduce the
electrical loads as much as possible. SeeDIC Warnings
and Messages on page 3-49.
Battery Run-Down Protection
Your vehicle has a battery saver feature designed to
protect the 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. This vehicle also has a
retained accessory power feature. If the radio is on,
it will turn off after 10 minutes or if any door on the
vehicle is opened. SeeRetained Accessory Power (RAP)
on page 2-21.
3-17

Low Fuel Warning Light
This light is located in
the fuel gage. For more
information seeFuel
Gage on page 3-41.
This light comes on when the fuel tank is low on fuel.
When you add fuel the light should go off. If it does not,
have your vehicle serviced.
A “Fuel Level LOW” message also appears in the
Driver Information Center (DIC). SeeFuel Gage
on page 3-41for more information.
Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
All messages will appear in the DIC display located in the
center of the instrument panel cluster. The DIC buttons
are located on the center of the instrument panel.The DIC comes on when the ignition is on. After a short
delay, the DIC will display the information that was
last displayed before the engine was turned off.
The DIC displays trip, fuel, and vehicle system
information, and warning messages if a system problem
is detected. The top of the DIC display shows the shift
lever position indicator. SeeAutomatic Transmission
Operation (3.4L V6 with 5-Speed) on page 2-24or
Automatic Transmission Operation (3.6L V6 with
6-Speed) on page 2-27for more information.
If your vehicle has these feature, the DIC also displays
the compass direction and the outside air temperature
when viewing the trip and fuel information. If there is a
problem with the system that controls the temperature
display, the numbers will be replaced with dashes. If this
occurs, have the vehicle serviced by your dealer/retailer.
If an abnormal temperature reading is displayed for an
extended period of time, consult your dealer/retailer.
Under certain circumstances, especially when the
engine is idling, a delay updating the temperature
display is normal.
The DIC also allows some features to be personalized.
SeeDIC Vehicle Personalization on page 3-58for
more information.
3-42

Radio Reception
Frequency interference and static can occur during
normal radio reception if items such as cell phone
chargers, vehicle convenience accessories, and external
electronic devices are plugged into the accessory
power outlet. If there is interference or static, unplug
the item from the accessory power outlet.
AM
The range for most AM stations is greater than for
FM, especially at night. The longer range can cause
station frequencies to interfere with each other.
For better radio reception, most AM radio stations
boost the power levels during the day, and then
reduce these levels during the night. Static can also
occur when things like storms and power lines interfere
with radio reception. When this happens, try reducing
the treble on your radio.
FM Stereo
FM stereo gives the best sound, but FM signals only
reach about 10 to 40 miles (16 to 65 km). Tall buildings
or hills can interfere with FM signals, causing the
sound to fade in and out.
XM™ Satellite Radio Service
XM™ Satellite Radio Service gives digital radio
reception from coast-to-coast in the 48 contiguous
United States, and in Canada. Just as with FM,
tall buildings or hills can interfere with satellite radio
signals, causing the sound to fade in and out. In
addition, traveling or standing under heavy foliage,
bridges, garages, or through tunnels could cause
loss of the XM signal for a period of time. The radio
may display NO XM SIGNAL to indicate interference.
Multi-Band Antenna
The multi-band antenna is located on the roof of your
vehicle. This type of antenna is used with the AM/FM
radio, as well as OnStar
®and the XM™ Satellite Radio
Service System, if your vehicle has these features.
Keep this antenna clear of snow and ice build up for
clear radio reception. If your vehicle has a sunroof,
the performance of the radio system may be affected if
the sunroof is open. Loading items onto the roof of
your vehicle can interfere with the performance of
the radio system and, if your vehicle has this feature,
OnStar
®. Make sure the multi-band antenna is not
obstructed.
3-110

17,000 annual motor vehicle-related deaths have been
associated with the use of alcohol, with about
250,000 people injured.
For persons under 21, it is against the law in every U.S.
state to drink alcohol. There are good medical,
psychological, and developmental reasons for
these laws.
The obvious way to eliminate the leading highway
safety problem is for people never to drink alcohol and
then drive.
Medical research shows that alcohol in a person’s
system can make crash injuries worse, especially
injuries to the brain, spinal cord, or heart. This means
that when anyone who has been drinking — driver or
passenger — is in a crash, that person’s chance of being
killed or permanently disabled is higher than if the person
had not been drinking.Control of a Vehicle
The following three systems help to control your vehicle
while driving — brakes, steering, and accelerator.
At times, as when driving on snow or ice, it is easy to ask
more of those control systems than the tires and road can
provide. Meaning, you can lose control of your vehicle.
SeeTraction Control System (TCS) on page 4-6.
Adding non-dealer/non-retailer accessories can affect
your vehicle’s performance. SeeAccessories and
Modifications on page 5-3.
4-3