2008 BUICK LACROSSE Engine

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Remote Vehicle Start......................................2-8
Doors and Locks............................................2-11
Door Locks..................................................2-11
Power Door Locks........................................2-11
Delayed Locking...........................................2-12
Automatic Door Lock.....................................2-12
Programmable Automatic Door Unlock.............2-12
Rear Door Security Locks..............................2-12
Lockout Protection........................................2-13
Trunk..........................................................2-14
Windows........................................................2-17
Power Windows............................................2-18
Sun Visors...................................................2-19
Theft-Deterrent Systems..................................2-20
Content Theft-Deterrent.................................2-20
PASS-Key
®III ..............................................2-22
PASS-Key®III Operation...............................2-22Starting and Operating Your Vehicle................2-24
New Vehicle Break-In....................................2-24
Ignition Positions..........................................2-24
Retained Accessory Power (RAP)...................2-25
Starting the Engine.......................................2-26
Engine Coolant Heater..................................2-27
Active Fuel Management™.............................2-28
Automatic Transmission Operation...................2-29
Parking Brake..............................................2-32
Shifting Into PARK (P)...................................2-33
Shifting Out of PARK (P)...............................2-35
Parking Over Things That Burn.......................2-36
Engine Exhaust............................................2-37
Running the Vehicle While Parked..................2-37
Mirrors...........................................................2-38
Manual Rearview Mirror.................................2-38
Manual Rearview Mirror with OnStar
®..............2-38
Automatic Dimming Rearview Mirror................2-39
Automatic Dimming Rearview Mirror
with OnStar
®............................................2-39
Outside Power Mirrors...................................2-40
Outside Power Heated Mirrors........................2-40
Outside Convex Mirror...................................2-40
Section 2 Features and Controls
2-1

Remote Keyless Entry (RKE)
System Operation
The Remote Keyless Entry (RKE) transmitter functions
will work up to 195 feet (60 m) away, however, the
operating range may be less while the vehicle is running.
There are other conditions which can affect the
performance of the transmitter. SeeRemote Keyless
Entry (RKE) System on page 2-4.
/(Remote Vehicle Start): If your vehicle has this
feature, press
/to start the engine from outside the
vehicle using the RKE transmitter. SeeRemote Vehicle
Start on page 2-8for additional information.
Q(Lock): PressQto lock all the doors. If enabled
through the Driver Information Center (DIC), the parking
lamps may ash once to indicate locking has occurred,
or the horn may chirp when
Qis pressed again
within ve seconds from the previous press of the lock
button. See “FOB LOCK FEEDBACK” underDIC
Vehicle Personalization on page 3-76for additional
information. If the vehicle has the content theft-deterrent
system, pressing
Qmay also arm it. SeeContent
Theft-Deterrent on page 2-20.
"(Unlock): Press"to unlock the driver’s door. If"is
pressed again within ve seconds, all remaining
doors will unlock. The interior lamps will come on and
stay on for 20 seconds or until the ignition is turned on.
If enabled through the DIC, the parking lamps can
be programmed to come on for a set amount of time
when the vehicle is unlocked using the RKE transmitter.
See “EXT (Exterior) LIGHT DELAY” underDIC
Vehicle Personalization on page 3-76. If the vehicle has
the content theft-deterrent system, pressing
"on the
RKE transmitter may disarm it. SeeContent
Theft-Deterrent on page 2-20. With Remote Start
Shown, Without Remote
Start Similar
2-5

Remote Vehicle Start
Your vehicle may have a remote starting feature that
allows you to start the engine from outside the vehicle.
It may also start the vehicle’s heating or air conditioning
systems and rear window defogger. When the remote
start system is active and the vehicle has an automatic
climate control system, it will automatically regulate
the inside temperature. Normal operation of these
systems will return after the ignition key is turned to
ON/RUN.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require a
person using remote start to have the vehicle in view
when doing so. Check local regulations for any
requirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is
low on fuel. Your vehicle may run out of fuel.
There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4for additional
information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button,
then immediately press and hold the transmitter’s
remote start button for about four seconds or
until the vehicle’s turn signal lamps ash. The doors
will lock.
When the vehicle starts, the parking lamps turn on
and remain on while the engine is running.
The remote start feature provides two separate starts
per ignition cycle, each with 10 minutes of engine
running time, or one start with a time extension. The
rst start must expire or be canceled to get two separate
10 minute starts.
If it is the rst remote start since the vehicle has been
driven, repeat the previous steps, while the engine is still
running, to extend the engine running time by 10 minutes
from the time you repeat the steps for remote starting.
The remote start running time can be extended one time
and only after the rst remote start.
2-8

After entering the vehicle during a remote start, insert
and turn the key to ON/RUN to drive the vehicle.
The engine will shut off automatically after 10 minutes,
unless a time extension has been done or the
vehicle’s key is inserted into the ignition switch and
turned to ON/RUN.
To manually shut off a remote start, do any of the
following.
Aim the RKE transmitter at the vehicle and press
and release the remote start button.
Turn on the hazard warning ashers.
Turn the ignition switch out of LOCK/OFF position
and then back to LOCK/OFF.
The parking lamps turn off to indicate the engine is off.After the engine has been started two times, or one
time with a time extension, the vehicle’s ignition must be
turned to ON/RUN using the key before the remote
start procedure can be used again. SeeIgnition
Positions on page 2-24for information regarding the
ignition positions on your vehicle.
The remote vehicle start feature will not operate if any
of the follow occur:
The remote start system is disabled through the DIC.
The vehicle’s key is in the ignition.
A door on the vehicle is open.
The vehicle’s hood is open.
The hazard warning ashers are on.
The check engine light is on. SeeMalfunction
Indicator Lamp on page 3-42
2-9

The engine coolant temperature is too high.
The oil pressure is low.
Two remote vehicle starts, or one start with a time
extension, have already been provided for that
ignition cycle.
If a remote start is attempted and is unsuccessful, the
Driver Information Center (DIC) will display REMOTE
START DISABLED.
Vehicles that have the remote start feature are shipped
from the factory with the remote vehicle start system
enabled. The system may be enabled or disabled
through the DIC. See “REMOTE START” underDIC
Vehicle Personalization on page 3-76for additionalinformation. If your vehicle does not have the DIC
feature, and remote vehicle start was installed at the
dealer/retailer, you will need to have the dealer/retailer
enable or disable the system.
Remote Start Ready
If your vehicle does not have the remote vehicle start
feature, it may have the remote start ready feature. This
feature allows your dealer/retailer to add the
manufacturer’s remote vehicle start feature.
See your dealer/retailer if you would like to add the
manufacturer’s remote vehicle start feature to your
vehicle.
2-10

Trunk
{CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the trunk lid
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-37.
Opening the Trunk
To open the trunk from the outside, use the Remote
Keyless Entry (RKE) transmitter. SeeRemote Keyless
Entry (RKE) System Operation on page 2-5for more
information.
The ignition must be off, or the transmission must be in
PARK (P) to open the trunk.
2-14

PASS-Key®III
Your PASS-Key®III system operates on a radio
frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
PASS-Key
®III uses a radio frequency transponder in
the key that matches a decoder in your vehicle.
PASS-Key®III Operation
Your vehicle is equipped with PASS-Key®III
(Personalized Automotive Security System)
theft-deterrent system. PASS-Key
®III is a passive
theft-deterrent system.
The system is automatically armed when the key is
removed from the ignition.
You do not have to manually arm or disarm the system.
The security light will come on if there is a problem
with arming or disarming the theft-deterrent system.
PASS-Key III
®uses a transponder in the ignition
key that matches a decoder in the vehicle.
When the PASS-Key
®III system senses that the wrong
key has been inserted into the ignition, it shuts down the
vehicle’s starter and fuel systems. The starter will not
work and fuel will stop owing to the engine. If someone
tries to start the vehicle again with the wrong key, the
vehicle will not start. Anyone using a trial-and-error
method to start the vehicle will be discouraged to do so
because of the high number of electrical key codes.
When trying to start the vehicle, if the engine does not
start and the STARTING DISABLED warning message
on the Driver Information Center (DIC) comes on, there
may be a problem with your theft-deterrent system. Turn
the ignition off and try again.
2-22

If the engine still does not start, and the key appears to be
undamaged, try another ignition key. At this time, you
may also want to check the fuse. SeeFuses and Circuit
Breakers on page 5-109. If the engine still does not start
with the other key, the vehicle needs service. If the
vehicle does start, the rst key may be faulty. See your
dealer/retailer who can service the PASS-Key
®III to have
a new key made. In an emergency, contact Roadside
Assistance. SeeRoadside Assistance Program on
page 7-8for more information.
It is possible for the PASS-Key
®III decoder to accept
the transponder value of a new or replacement key.
Up to 10 keys may be programmed for the vehicle.
The following procedure is for programming additional
keys only. If all the programmed keys are lost or do
not operate, see your dealer/retailer or a locksmith who
can service PASS-Key
®III to have keys made and
programmed to the system.
To program the new key do the following:
1. Verify that the new key has PK3 stamped on it.
2. Insert the master key in the ignition and start
the engine. If the engine will not start, see your
dealer/retailer for service.
3. After the engine has started, turn the key to
LOCK/OFF, and remove the key.4. Insert the key to be programmed and turn it to
ON/RUN within ve seconds of removing the
original key.
5. The SERVICE THEFT SYSTEM warning message
on the DIC will turn off, once the key has been
programmed. It may not be apparent that the
SERVICE THEFT SYSTEM warning message went
on due to how quickly the key is programmed.
6. Repeat Steps 1 through 5 if additional keys are to
be programmed.
If the SERVICE THEFT SYSTEM warning message
appears and stays on the DIC while the vehicle is being
driven, the engine will be able to be restarted if it is turned
off. Your PASS-Key
®III system, however, is not working
properly and must be serviced by your dealer/retailer.
The vehicle is not protected by the PASS-Key
®III system
at this time.
If the PASS-Key
®III key is lost or stolen, see your
dealer/retailer or a locksmith who can service
PASS-Key
®III to have a new key made.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
2-23