2012 BUICK LACROSSE key battery

Black plate (42,1)Buick LaCrosse Owner Manual - 2012
5-42 Instruments and Controls
You can receive more than one tire
pressure message at a time. To
read the other messages that may
have been sent at the same time,
press the SET/CLR button. The DIC
also shows the tire pressure values.
SeeDriver Information Center (DIC)
on page 5‑27.
SERVICE TIRE MONITOR
SYSTEM
This message displays if there is a
problem with the Tire Pressure
Monitor System (TPMS). See Tire
Pressure Monitor Operation on
page 10‑57 for more information.
TIRE LEARNING ACTIVE
This message displays when the
system is learning new tires. See
Tire Pressure Monitor Operation on
page 10‑57for more information.
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
attempting to remove the key from
the ignition or from the vehicle if the
vehicle is not in P (Park).
TRANSMISSION HOT —IDLE
ENGINE
This message displays and a chime
sounds if the transmission fluid in
the vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle.
Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears when the fluid
temperature reaches a safe level.
Window Messages
OPEN, THEN CLOSE DRIVER
WINDOW
This message is displayed when the
window needs to be reprogrammed.
If the vehicle's battery has been
recharged or disconnected, you will
need to reprogram each front
window for the express-up feature to
work. See Power Windows on
page 2‑20 for more information.
OPEN, THEN CLOSE
PASSENGER WINDOW
This message is displayed when the
window needs to be reprogrammed.
If the vehicle's battery has been
recharged or disconnected, you will
need to reprogram each front
window for the express-up feature to
work. SeePower Windows on
page 2‑20 for more information.

Black plate (7,1)Buick LaCrosse Owner Manual - 2012
Lighting 6-7
Lighting Features
Entry Lighting
The headlamps, taillamps, license
plate lamps, back‐up lamps, dome
lamps, and most of the interior lights
turn on briefly when the Remote
Keyless Entry (RKE)
Kbutton is
pressed, or when the door handle is
pulled on a keyless access vehicle.
See Ignition Positions (Key Access)
on page 9‑18 orIgnition Positions
(Keyless Access) on page 9‑20.
After about 30 seconds the exterior
lamps turn off, then the dome lamps
and remaining interior lights dim to
off. Entry lighting can be disabled
manually by changing the ignition
out of the OFF position, or by
pressing the RKE
Qbutton.
This feature can be changed. See
Vehicle Personalization on
page 5‑43.
Exit Lighting
The headlamps, taillamps, parking
lamps, back‐up lamps, and license
plate lamps come on at night, or in
areas with limited lighting, when the
key is removed from the ignition.
The dome lamps also come on
when the key is removed from the
ignition. The exterior lights and
dome lamps remain on after the
door is closed for a set amount of
time, then automatically turn off.
For vehicles with keyless access,
the exterior lights and dome lamps
automatically turn on when a door is
opened after the ignition is turned
off. See Ignition Positions (Key
Access) on page 9‑18 orIgnition
Positions (Keyless Access) on
page 9‑20.
The exterior lights turn off
immediately by turning the exterior
lamps control off.
This feature can be changed. See
Vehicle Personalization on
page 5‑43.
Battery Load
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 bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge 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.

Black plate (54,1)Buick LaCrosse Owner Manual - 2012
7-54 Infotainment System
The AUX button also controls the
source display between the left and
right video screens as described in
the table below:Aux
Button
Press Left
Screen Right
Screen
Default
State (No
Press) DVD
Media DVD
Media
First
Press Aux Video
Source Aux Video
Source
Second Press DVD
Media Aux Video
Source
Third
Press Aux Video
Source DVD
Media
Fourth Press Return to
DefaultState Return to
DefaultState2(Camera): Press to change the
camera angle on DVDs that have
this feature when the DVD is
playing.
\(Clear) (If Available): Press this
button within three seconds after
inputting a numeric selection, to
clear all numeric inputs.
}10 (Double Digit Entries)
(If Available): Press this button to
select chapter or track numbers
greater than 9. Press this button
before inputting the number.
1 through 0 (Numeric Keypad):
The numbered keypad provides the
capability of direct chapter or track
number selection. Replacing the Remote Control
If the remote control becomes lost
or damaged, a new universal
remote control can be purchased.
Use a Toshiba
®code set for
replacement universal remote
controls.
Battery Replacement
To change the remote control
batteries:
1. Slide back the rear cover on the remote 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.

Black plate (19,1)Buick LaCrosse Owner Manual - 2012
Driving and Operating 9-19
{WARNING
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
turn the ignition to ACC/
ACCESSORY.
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. 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. This
position can also be used for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. The transmission is also
unlocked in this position. 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.

Black plate (22,1)Buick LaCrosse Owner Manual - 2012
9-22 Driving and Operating
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). The engine will not start
in any other position. To restart the
engine when the vehicle is already
moving, use N (Neutral) only.
Notice:Do not try to shift to
P (Park) if the vehicle is moving.
If you do, you could damage the
transmission. Shift to P (Park)
only when the vehicle is stopped.
Notice: The engine is designed to
work with the electronics in the
vehicle. If you add electrical parts
or accessories, you could change
the way the engine operates.
Before adding electrical
equipment, check with your
dealer. If you do not, the engine
might not perform properly. Any
resulting damage would not be
covered by the vehicle warranty. Starting Procedure (Key Access)
1. With your foot off the accelerator
pedal, turn the ignition key to
START. When the engine starts,
let go of the ignition.
The idle speed will go down as
your engine gets warm. Do not
race the engine immediately
after starting it. Operate the
engine and transmission gently
to allow the oil to warm up and
lubricate all moving parts.
The vehicle has a
Computer-Controlled Cranking
System. This feature assists in
starting the engine and protects
components. If the ignition key is
turned to the START position,
and then released when the
engine begins cranking, the
engine will continue cranking for
a few seconds or until the
vehicle starts. If the engine does
not start and the key is held in
START for many seconds,
cranking will be stopped after
15 seconds to prevent cranking motor damage. To prevent gear
damage, this system also
prevents cranking if the engine
is already running. Engine
cranking can be stopped by
turning the ignition switch to
ACC/ACCESSORY or
LOCK/OFF.
Notice: Cranking the engine for
long periods of time, by returning
the key to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18°C
or 0°F), it could be flooded with
too much gasoline. Try pushing
the accelerator pedal all the way
to the floor and holding it there
as you hold the key in START,
or press the START button, for
up to a maximum of 15 seconds.
Wait at least 15 seconds

Black plate (23,1)Buick LaCrosse Owner Manual - 2012
Driving and Operating 9-23
between each try, to allow the
cranking motor to cool down.
When the engine starts, let go of
the key or button, and the
accelerator. If the vehicle starts
briefly but then stops again, do
the same thing. This clears the
extra gasoline from the engine.
Do not race the engine
immediately after starting it.
Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Starting Procedure (Keyless
Access)
1. If the vehicle has the keyless access system, the transmitter
must be in the vehicle. Put your
foot on the brake pedal and
push the START button. When
the engine begins cranking, let
go of the button.
The idle speed will go down as
your engine gets warm. Do not
race the engine immediately
after starting it. Operate the engine and transmission gently
to allow the oil to warm up and
lubricate all moving parts.
If the transmitter is not in the
vehicle or something is
interfering with the transmitter,
the Driver Information Center
(DIC) will display a message.
See
Key and Lock Messages on
page 5‑39 for more information.
If the battery in the Remote
Keyless Entry (RKE) transmitter
needs replacing, the DIC will
display a message. The vehicle
can still be driven. See “Starting
the Vehicle with a Low
Transmitter Battery” inRemote
Keyless Entry (RKE) System
Operation on page 2‑4 for more
information.
The vehicle has a
Computer-Controlled Cranking
System. This feature assists in
starting the engine and protects
components. If the START
button is pressed, and then
released when the engine begins cranking, the engine
will continue cranking for a
few seconds or until the vehicle
starts. If the engine does not
start and the button is pressed
for many seconds, cranking will
be stopped after 15 seconds to
prevent cranking motor damage.
To prevent gear damage, this
system also prevents cranking if
the engine is already running.
Engine cranking can be stopped
by pressing the START button a
second time.
Notice: Cranking the engine for
long periods of time, by returning
the key to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down.

Black plate (29,1)Buick LaCrosse Owner Manual - 2012
Driving and Operating 9-29
Shifting out of Park
Automatic Transmission
Shift Lock
The vehicle has an automatic
transmission shift lock control
system. The shift lock control
system is designed to:
.Prevent ignition key removal
unless the shift lever is in
P (Park).
.Prevent movement of the shift
lever out of P (Park), unless the
ignition is in ON/RUN and the
brake pedal is applied.
The shift lock is always functional
except in the case of an uncharged
or low voltage (less than 9‐volt)
battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See Jump Starting
(On-board with eAssist Only) on
page 10‑94 orJump Starting (with
or without eAssist) on page 10‑95. If the shift lever cannot be moved
out of P (Park):
1. Apply and maintain the regular
brakes.
2. Turn the ignition to the ON/RUN position. See Ignition Positions
(Key Access) on page 9‑18 or
Ignition Positions (Keyless
Access) on page 9‑20 for more
information.
3. Let up on the shift lever and make sure the shift lever is
pushed all the way into P (Park).
4. Press the shift lever button.
5. Move the shift lever into the desired gear.
If you still cannot move the shift
lever from P (Park), consult your
dealer or a professional towing
service.
Parking over Things
That Burn
{WARNING
Things that can burn could touch
hot exhaust parts under the
vehicle and ignite. Do not park
over papers, leaves, dry grass,
or other things that can burn.

Black plate (94,1)Buick LaCrosse Owner Manual - 2012
10-94 Vehicle Care
Jump Starting
Jump Starting (On-board
with eAssist Only)
If the vehicle fails to crank, it may
be jump started by using the eAssist
battery to charge the 12-volt battery.
Use the following procedure to
activate the on‐board jump start
using the DIC controls.
DIC Buttons
A. SET/CLR
B.
w x(Thumbwheel)
C. MENU With the ignition key in the run
position, proceed as follows:
1. Press MENU (C) on the turn
signal lever until Vehicle
Information Menu is displayed.
Use
w x(Thumbwheel) (B) to
scroll through the menu items
until Jump Start is displayed.
2. Press SET/CLR (A) to activate the jump start.
3. The system will then ask for confirmation. If yes is selected,
the jump start will begin and the
display will show JUMP START
ACTIVE, WAIT TO START.
4. When the jump start is complete, the display will show JUMP
START COMPLETE. ATTEMPT
START. If the vehicle is started, the
on‐board jump start function will be
automatically disabled. If the vehicle
cranks but does not start, the
procedure may be repeated
again. If the vehicle start is still
unsuccessful, the jump start can be
attempted using the following jump
starting procedure under
“Jump
Starting (with or without eAssist).”
On‐board jump starting may be
unavailable due to the 12-volt
battery charge level, the eAssist
battery charge level, power
capability, or an issue with the
eAssist system. In these cases, the
display will not be available because
of the power issue, or the DIC will
display JUMP START DISABLED.
SEE OWNERS MANUAL.