2010 BUICK LACROSSE battery

Lighting 5-7
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 are on, such
as: 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. If so, a Driver Information
Center (DIC) message might be
displayed, such as BATTERY
SAVER ACTIVE, BATTERY
VOLTAGE LOW, or LOW BATTERY.
If one of these messages display, it
is recommended that the driver
reduce the electrical loads as much
as possible. See
Driver Information
Center (DIC) on page 4‑25.Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If the exterior lamps or any interior
light is left on and the ignition is
turned off, the battery rundown
protection system automatically
turns the lamp off after about
10 minutes.

Infotainment System 6-19
Cellular Phone Usage
Cellular phone usage may cause
interference with the vehicle's radio.
This interference may occur when
making or receiving phone calls,
charging the phone's battery,
or simply having the phone on. This
interference can cause an increased
level of static while listening to the
radio. If static is received while
listening to the radio, unplug the
cellular phone and turn it off.
Backglass Antenna
The AM-FM antenna is integrated
with the rear window defogger,
located in the rear window. Make
sure that the inside surface of the
rear window is not scratched and
that the lines on the glass are not
damaged. If the inside surface isdamaged, it could interfere with
radio reception. For proper radio
reception, the antenna connector
needs to be properly attached to
the post on the glass.
If a cellular telephone antenna
needs to be attached to the glass,
make sure that the grid lines for the
AM-FM antenna are not damaged.
There is enough space between the
grid lines to attach a cellular
telephone antenna without
interfering with radio reception.
Notice:
Using a razor blade or
sharp object to clear the inside
rear window can damage the rear
window antenna and/or the rear
window defogger. Repairs would
not be covered by the vehicle
warranty. Do not clear the inside
rear window with sharp objects. Notice:
Do not apply aftermarket
glass tinting with metallic film.
The metallic film in some tinting
materials will interfere with or
distort the incoming radio
reception. Any damage caused to
your backglass antenna due to
metallic tinting materials will not
be covered by the vehicle
warranty.
Satellite Radio Antenna
For vehicles with XM™ satellite
radio service, the antenna is located
on the roof of the vehicle. Keep the
antenna clear of obstructions for
clear radio reception.

Infotainment System 6-35
Push the On/Off button to turn on
the headphones. A light on the
headphones comes on. If the light
does not come on, check the
batteries. Intermittent sound or static
can also indicate weak batteries.
See“Battery Replacement” later in
this section for more information.
Infrared transmitters are on the top
of the left seatback video screen.
The headphones shut off
automatically to save the battery
power if the RSE system is shut off
or if the headphones are out of
range of the transmitters for more
than three minutes. Moving too far
forward or stepping out of the
vehicle, can cause the headphones
to lose the signal or have static.
The headphones automatically turn
off after four hours of
continuous use.
To adjust the volume on the
headphones, use the volume
control. For best audio performance, the
headphones must be worn correctly,
with the headband over the top of
the head. L (Left) and R (Right) are
above the ear pads and are
indicators as to how the
headphones should be placed on
the head.
Notice:
Do not store the
headphones in heat or direct
sunlight. This could damage the
headphones and repairs will not
be covered by the warranty.
Storage in extreme cold can
weaken the batteries. Keep the
headphones stored in a cool, dry
place.
If the foam ear pads become worn
or damaged, they can be replaced
separately from the headphones.
See your dealer/retailer for more
information. Battery Replacement
To change the batteries:
1. Loosen the screw to the battery
door located on the left side of
the headphones.
2. Slide the battery door open.
3. Replace the two AAA batteries.
4. Replace the battery door and tighten the screw.
Remove the batteries if the
headphones are not going to be
used for a long period of time.
Audio/Video (A/V) Jacks
The A/V jacks may be located on
the rear of the floor console. They
allow audio or video cables to be
connected from an auxiliary device
such as a camcorder or a video
game system.
The A/V jacks are color coded:
.Yellow for video input.
.White for left audio input.
.Red for right audio input.

Infotainment System 6-37
To use the video screen:
1. Push the release button locatedon the seatback console.
2. Move the screen to the desired viewing position.
Push the video screen down into its
locked position when it is not in use,
the screen turns off automatically.
Only the left RSE seatback console
contains the infrared transmitters for
the wireless headphones, they may
be visible as eight illuminated LEDs.
These LEDs are not on the right
video screen. Both seatback
consoles contain an infrared
receiver for the remote control. They
are located at the top of each
console.
Notice: Avoid directly touching
the video screen, as damage may
occur. See “Cleaning the Video
Screen” later in this section for
more information.Video Screen Input Jack
Each video screen is equipped with
a video input jack to allow video
cables to be connected from an
auxiliary device such as a
camcorder or a video game system.
This signal will override any video
provided by the RSE system; either
the DVD or Auxiliary A/V jack
source. The RSE system must be
on for this input to operate.
Remote Control
To use the remote control, aim it at
the transmitter window at either
seatback console and press the
button. Direct sunlight or very bright
light could affect the ability of the
RSE transmitter to receive signals
from the remote control. Check the
batteries if the remote control does
not seem to be working. See
“Battery Replacement” later in this
section. Objects blocking the line of
sight could also affect the function
of the remote control. If a CD, DVD, or MP3 disc is in the
Radio DVD slot, the remote control
Obutton can be used to turn on the
video screen display and start the
disc. The infotainment system can
also turn on the video screen
display. See CD/DVD Player
on
page 6‑22or the separate
navigation system manual for more
information.
Notice: Storing the remote
control in a hot area or in direct
sunlight can damage it, and the
repairs will not be covered by the
warranty. Storage in extreme cold
can weaken the batteries. Keep
the remote control stored in a
cool, dry place.

6-40 Infotainment System
Battery Replacement
To change the remote control
batteries:
1. Slide back the rear cover on theremote control.
2. Replace the two batteries in the compartment.
3. Replace the battery cover.
Remove the batteries from the
remote control if unused for an
extended period of time.Tips and Troubleshooting Chart
Problem Recommended Action
No power. The ignition might not be turned to
ON/RUN or in ACC/ACCESSORY.
The picture does not fill the screen.
There are black borders on the top
and bottom or on both sides or it
looks stretched out. Check the display mode settings in
the setup menu by pressing the
display menu button on the remote
control.
In auxiliary mode, the picture moves
or scrolls. Check the auxiliary input
connections at both devices.
The remote control does not work. Check to make sure there is no obstruction between the remote
control and the transmitter window.
Check the batteries to make sure
they are not dead or installed
incorrectly.
After stopping the player, I push
Play but sometimes the DVD starts
where I left off and sometimes at the
beginning. If the stop button was pressed one
time, the DVD player resumes
playing where the DVD was
stopped. If the stop button was
pressed two times the DVD player
begins to play from the beginning of
the DVD.

Driving and Operating 8-11
WARNING (Continued)
For more information about
carbon monoxide, seeEngine
Exhaust on page 8‑26.
Snow can trap exhaust gases
under your vehicle. This can
cause deadly CO (carbon
monoxide) gas to get inside. CO
could overcome you and kill you.
You cannot see it or smell it, so
you might not know it is in your
vehicle. Clear away snow from
around the base of your vehicle,
especially any that is blocking the
exhaust.
Run the engine for short periods
only as needed to keep warm, but
be careful. To save fuel, run the engine for only
short periods as needed to warm
the vehicle and then shut the engine
off and close the window most of
the way to save heat. Repeat this
until help arrives but only when you
feel really uncomfortable from the
cold. Moving about to keep warm
also helps.
If it takes some time for help to
arrive, now and then when you run
the engine, push the accelerator
pedal slightly so the engine runs
faster than the idle speed. This
keeps the battery charged to restart
the vehicle and to signal for help
with the headlamps. Do this as little
as possible to save fuel.
If the Vehicle is Stuck
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow.
If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method.
{WARNING
If the vehicle's tires spin at high
speed, they can explode, and you
or others could be injured. The
vehicle can overheat, causing an
engine compartment fire or other
damage. Spin the wheels as little
as possible and avoid going
above 55 km/h (35 mph) as
shown on the speedometer.
For information about using tire
chains on the vehicle, see Tire
Chains on page 9‑67.

8-18 Driving and Operating
Ignition Positions (Key
Access)
The ignition switch has four different
positions.
Notice:Using a tool to force the
key to turn in the ignition could
cause damage to the switch or
break the key. Use the correct
key, make sure it is all the way in,
and turn it only with your hand.
If the key cannot be turned by
hand, see your dealer/retailer. To shift out of P (Park), turn the
ignition to ON/RUN and apply the
brake pedal.
A (LOCK/OFF):
This is the only
position from which the key can be
removed. This locks the ignition and
automatic transmission.
The shift lever must be in P (Park)
to turn the ignition switch to the
LOCK/OFF position.
The ignition switch can bind in the
LOCK/OFF position with the wheels
turned off center. If this happens,
move the steering wheel from right
to left while turning the key to ACC/
ACCESSORY. If this does not work,
then the vehicle needs service.
B (ACC/ACCESSORY) : This
position provides power to some of
the electrical accessories. It unlocks
the ignition. The transmission is
also unlocked in this position on
automatic transmission vehicles.
To move the key from ACC/
ACCESSORY to LOCK/OFF, the
shift lever must be in P (Park). C (ON/RUN):
The ignition switch
stays in this position when the
engine is running. This position can
be used to operate the electrical
accessories, including the
ventilation fan and 12 volt power
outlet, as well as to display some
warning and indicator lights.
The battery could be drained if the
key is left in the ACC/ACCESSORY
or ON/RUN position with the engine
off. The vehicle might not restart if
the battery is allowed to drain for an
extended period of time.
D (START) : This position starts
the engine. When the engine starts,
release the key. The ignition switch
will return to ON/RUN for normal
driving.
A warning tone sounds when the
driver door is opened when the
ignition is still in ACC/ACCESSORY
and the key is in the ignition.

Driving and Operating 8-19
Ignition Positions
(Keyless Access)
The vehicle has an electronic
keyless ignition with push-button
start.
Pressing the button cycles it through
three positions, ACC/ACCESSORY,
ON/RUN/START and OFF.
The transmitter must be in the
vehicle for the system to operate.
If the push-button start is not
working, the vehicle may be near a
strong radio antenna signal causing
interference to the keyless accesssystem. See
Remote Keyless Entry
(RKE) System Operation (Key
Access)
on page 1‑3or Remote
Keyless Entry (RKE) System
Operation (Keyless Access)
on
page 1‑5for more information.
To shift out of P (Park), the vehicle
must be in ACC/ACCESSORY or
ON/RUN and the brake pedal must
be applied.
OFF: When this button is pressed
with the engine running, the engine
will be turned off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP)
on page 8‑20for
more information.
If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display the
message SHIFT TO PARK in the
Driver Information Center (DIC).
See Driver Information Center (DIC)
on page 4‑25for more information. When the vehicle is shifted into
P (Park), the ignition system will
switch to OFF.
ACC/ACCESSORY:
This position
allows you to use some electrical
accessories when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied, will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after
five minutes to prevent battery
run down.
ON/RUN/START: This position is
for driving and starting. With the
ignition off, and the brake pedal
applied, pressing the button once
will place the ignition system in ON/
RUN/START. Once engine cranking
begins, release the button. Engine
cranking will continue until the
engine starts. See Starting the
Engine
on page 8‑20for more
information. The ignition will then
remain in ON/RUN.