2003 BUICK LESABRE ECU location

Front Seats......................................................1-2
Manual Seats................................................1-2
Power Seats..................................................1-2
Manual Lumbar..............................................1-3
Power Lumbar...............................................1-3
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-4
Head Restraints.............................................1-6
Safety Belts.....................................................1-6
Safety Belts: They Are for Everyone.................1-6
Questions and Answers About Safety Belts......1-11
How to Wear Safety Belts Properly.................1-11
Driver Position..............................................1-12
Safety Belt Use During Pregnancy..................1-18
Right Front Passenger Position.......................1-19
Center Front Passenger Position.....................1-19
Rear Seat Passengers..................................1-21
Rear Safety Belt Comfort Guides for Children
and Small Adults.......................................1-24
Safety Belt Extender.....................................1-26
Child Restraints.............................................1-27
Older Children..............................................1-27
Infants and Young Children............................1-29Child Restraint Systems.................................1-33
Where to Put the Restraint.............................1-36
Top Strap....................................................1-37
Top Strap Anchor Location.............................1-38
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-38
Securing a Child Restraint Designed for
the LATCH System....................................1-40
Securing a Child Restraint in a Rear
Seat Position............................................1-41
Securing a Child Restraint in the Right
Front Seat Position....................................1-43
Air Bag Systems............................................1-46
Where Are the Air Bags?...............................1-49
When Should an Air Bag In¯ate?....................1-50
What Makes an Air Bag In¯ate?.....................1-51
How Does an Air Bag Restrain?.....................1-52
What Will You See After an Air
Bag In¯ates?............................................1-52
Servicing Your Air Bag-Equipped Vehicle.........1-54
Restraint System Check..................................1-54
Checking Your Restraint Systems...................1-54
Replacing Restraint System Parts
After a Crash............................................1-55
Section 1 Seats and Restraint Systems
1-1

Once you have the top strap anchored, you'll be ready
to secure the child restraint itself. Tighten the top
strap when and as the child restraint manufacturer's
instructions say.
Top Strap Anchor Location
Your vehicle has top strap anchors already installed for
the rear seating positions. You'll ®nd them behind
the rear seat on the ®ller panel.
In order to get to a bracket, you'll have to open the
trim cover.
Lower Anchorages and Top Tethers
for Children (LATCH System)
Your vehicle has the LATCH system. You'll ®nd
anchors (A) in all three rear seat positions.
To assist you in locating
the lower anchors for this
child restraint system,
each seating position with
the LATCH system will
have a label sewn into the
seatback at each anchor
point.
1-38

4. Press the trunk button again. Each time the trunk
button is pressed, the security feedback will
advance to the next mode, and the horn will chirp.
5. Release the power door lock switch. The security
feedback will remain in the most current mode
selected.
This procedure only changes the mode for the
transmitter used to change this setting.
To verify the mode selected, remove the key from the
ignition and close all of the doors after you've exited the
vehicle. Press the lock button on the transmitter to be
veri®ed and con®rm the appropriate feedback.
Repeat with the unlock button.
Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can
be purchased through your dealer. Remember to bring
any remaining transmitters with you when you go toyour dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock
your vehicle. Each vehicle can have a maximum of four
transmitters matched to it.
See your dealer to have additional transmitters matched
to your vehicle.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about four years.
You can tell the battery is weak if the transmitter won't
work at the normal range in any location. If you have
to get close to your vehicle before the transmitter works,
it's probably time to change the battery.
Notice:When replacing the battery, use care not to
touch any of the circuitry. Static from your body
transferred to these surfaces may damage the
transmitter.
2-8

XMŸ Radio Messages (cont'd)
Radio Display
MessageCondition Action Required
No Info Category Name not
availableNo category information is available at this time on this
channel. Your system is working properly.
No Info No Text/Informational
message availableNo text or informational messages are available at this
time on this channel. Your system is working properly.
Not Found No channel available for
the chosen categoryThere are no channels available for the category you
selected. Your system is working properly.
XM Locked Theft lock active The XM receiver in your vehicle may have previously been
in another vehicle. For security purposes, XM receivers
cannot be swapped between vehicles. If you receive this
message after having your vehicle serviced, check with the
servicing facility.
Radio ID Radio ID label
(channel 0)If you tune to channel 0, you will see this message
alternating with your XM Radio 8 digit radio ID label. This
label is needed to activate your service.
Unknown Radio ID not known
(should only be if
hardware failure)If you receive this message when you tune to channel 0,
you may have a receiver fault. Consult with your dealer.
Chk XMRcvr Hardware failure If this message does not clear within a short period of time,
your receiver may have a fault. Consult with your retail
location.
3-69

Roadside Assistance Program
Buick Motor Division is proud to offer Buick Premium
Roadside Assistance to customers for vehicles covered
under the 3 year/36,000 mile (60 000 km) new car
warranty (whichever occurs ®rst).
Our commitment to Buick owners has always included
superior service through our network of Buick dealers.
Buick Premium Roadside Assistance provides an
extra measure of convenience and security.
Buick's Roadside Assistance toll-free number is staffed
by a team of technically trained advisors, who are
available 24 hours a day, 365 days a year.
We take anxiety out of uncertain situations by providing
minor repair information over the phone or making
arrangements to tow your vehicle to the nearest Buick
dealer.
We will provide the following services for
3 years/36,000 miles (60 000 km), at no expense to you:
·Fuel delivery
·Lock-out service (identi®cation required)
·Tow to nearest dealership for warranty service
·Change a ¯at tire
·Jump startsWe have quick, easy access to telephone numbers of the
following additional services depending on your needs:
·Hotels
·Glass replacement
·Tire repair facilities
·Rental vehicle or taxis
·Airports or train stations
·Police, ®re department or hospitals
In many instances, mechanical failures are covered
under Buick's comprehensive warranty. However, when
other services are utilized, our advisors will explain
any payment obligations you might incur.
For prompt and efficient assistance when calling, please
provide the following information to give the advisor:
·Location of vehicle
·Telephone number of your location
·Vehicle model, year and color
·Mileage of vehicle
·Vehicle Identi®cation Number (VIN)
·Vehicle license plate number
Buick reserves the right to limit services or
reimbursement to an owner or driver when, in Buick's
judgement, the claims become excessive in frequency or
type of occurrence.
7-6

Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-54
Check...........................................................3-40
Engine Light...............................................3-40
Tire Pressure System...................................5-59
Chemical Paint Spotting...................................5-83
Child Restraints..............................................1-33
Child Restraint Systems...............................1-33
Infants and Young Children...........................1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-38
Older Children.............................................1-27
Securing a Child Restraint Designed for
the LATCH System...................................1-40
Securing a Child Restraint in a Rear Seat
Position..................................................1-41
Securing a Child Restraint in the Right
Front Seat Position...................................1-43
Top Strap Anchor Location............................1-38
Top Strap...................................................1-37
Where to Put the Restraint...........................1-36
Chime Level Adjustment..................................3-81
Cigarette Lighter.............................................3-23
Cleaning Aluminum or Chrome-Plated Wheels.....5-82
Cleaning Exterior Lamps/Lenses.......................5-81
Cleaning Fabric/Carpet....................................5-77
Cleaning Glass Surfaces..................................5-79
Cleaning Interior Plastic Components.................5-79Cleaning Leather............................................5-79
Cleaning the Top of the Instrument Panel...........5-79
Cleaning Tires................................................5-82
Cleaning Vinyl................................................5-79
Cleaning Windshield and Wiper Blades..............5-81
Cleaning........................................................5-77
Inside of Your Vehicle..................................5-77
Outside of Your Vehicle................................5-80
Underbody Maintenance...............................5-83
Weatherstrips..............................................5-80
Climate Control System...................................3-24
Climate Controls Personalization....................3-31
Dual Automatic............................................3-26
Outlet Adjustment........................................3-30
Steering Wheel Controls...............................3-31
Compact Disc Errors.......................................3-76
Compact Disc Messages..........................3-62, 3-73
Compact Spare Tire........................................5-76
Compass Calibration.......................................2-34
Compass Operation.........................................2-34
Compass Variance..........................................2-34
Content Theft-Deferrent....................................2-18
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-43
Coolant.........................................................3-40
Engine Temperature Gage............................3-40
Heater, Engine............................................2-24
Cooling System..............................................5-28
3

T
Tachometer....................................................3-35
Taillamps.......................................................5-55
Back-Up Lamps...........................................5-55
Turn Signal, and Stoplamps..........................5-53
TCS Warning Light..........................................3-39
Testing the Alarm............................................2-19
Theater Dimming............................................3-18
Theft-Deterrent, Radio.....................................3-77
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
PASS-Key
žIII Operation..............................2-20
PASS-KeyžIII .............................................2-19
Throttle System Inspection...............................6-22
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-17
Tires.............................................................5-58
Buying New Tires........................................5-62
Chains.......................................................5-66
Changing a Flat Tire....................................5-67
Check Tire Pressure System.........................5-59
Compact Spare Tire.....................................5-76
If a Tire Goes Flat.......................................5-66
In¯ation -- Tire Pressure...............................5-58
Inspection and Rotation................................5-60
Uniform Tire Quality Grading.........................5-63Tires (cont.)
Wheel Alignment and Tire Balance.................5-64
Wheel Replacement.....................................5-65
When It Is Time for New Tires......................5-62
To Use the Engine Coolant Heater....................2-24
Top Strap Anchor Location...............................1-38
Top Strap......................................................1-37
Torque Lock...................................................2-30
Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-31
Traction........................................................... 4-9
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-39
Trailer Brakes.................................................4-39
Trailer Wiring Harness.....................................4-39
Transaxle Operation, Automatic.........................2-25
Transaxle.......................................................5-21
Fluid, Automatic...........................................5-21
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Odometer................................................3-35
Trunk Lock Release........................................2-14
Trunk Security Override...................................2-15
14