key BUICK LUCERNE 2007 Service Manual

Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour
(km/h). Your odometer shows how far your vehicle
has been driven, in either miles or kilometers.
Your vehicle has a tamper resistant odometer.
You may wonder what happens if your vehicle
needs a new odometer installed. If the new one
can be set to the mileage total of the old odometer,
then it must be. But if it cannot, then it is set at
zero and a label must be put on the driver’s door to
show the old mileage reading when the new
odometer was installed.
Trip Odometer
A trip odometer can tell you how far you have
driven since you last set it to zero. SeeDriver
Information Center (DIC) on page 212for
information on resetting the trip odometer.
Tachometer
The tachometer tells you how fast the engine is
running. It displays engine speed in thousands of
revolutions per minute (rpm).
Safety Belt Reminder Light
When the key is turned to RUN or START, a chime
will be provided for several seconds to remind
people to buckle their safety belts. The driver
safety belt light will also be provided and stay on
for several seconds, then it will ash for several
more. You should buckle your seat belt.
This chime and light will
be repeated if the driver
remains unbuckled and
the vehicle is in motion.
If the driver’s belt is buckled, neither the chime nor
the light will be provided.
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Passenger Safety Belt
Reminder Light
Several seconds after the key is turned to RUN or
START, a chime will sound for several seconds to
remind the front passenger to buckle their safety
belt. This would only occur if the passenger airbag
is enabled. SeePassenger Sensing System on
page 81for more information. The passenger
safety belt light will also come on and stay on for
several seconds, then it will ash for several more.
This chime and light
will be repeated if the
passenger remains
unbuckled and the
vehicle is in motion.
If the passenger’s safety belt is buckled, neither
the chime nor the light will come on.
Airbag Readiness Light
There is an airbag readiness light on the instrument
panel, which shows the airbag symbol. The system
checks the airbag’s electrical system for
malfunctions. The light tells you if there is an
electrical problem. The system check includes the
airbag sensors, the airbag modules, the wiring and
the diagnostic module. For more information on the
airbag system, seeAirbag System on page 70.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds. Then
the light should go out.
This means the system
is ready.
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If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.
{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a few
seconds when you turn the ignition key to RUN.
If the light does not come on then, have it xed so
it will be ready to warn you if there is a problem.
If there is a problem with the airbag system in your
vehicle, the Service airbag message will appear
on the DIC display. SeeDIC Warnings and
Messages on page 221for more information.
Passenger Airbag Status Indicator
Your vehicle has the passenger sensing system.
Your overhead console has a passenger airbag
status indicator.
When the ignition key is turned to RUN or START,
the passenger airbag status indicator will light ON
and OFF, or the symbol for on and off, for several
seconds as a system check. Then, after several
more seconds, the status indicator will light either
ON or OFF, or either the on or off symbol to let you
know the status of the right front passenger’s frontal
airbag and seat-mounted side impact airbag.
If the word ON or the on symbol is lit on the
passenger airbag status indicator, it means that
the right front passenger’s frontal airbag and
seat-mounted side impact airbag are enabled
(may inate).
United StatesCanada
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If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag readiness
light ever come on together, it means that
something may be wrong with the airbag
system. If this ever happens, have the
vehicle serviced promptly, because an
adult-size person sitting in the right front
passenger seat may not have the
protection of the airbags. SeeAirbag
Readiness Light on page 197.
Charging System Light
When you turn the key to
RUN or START, this light
will come on briey to
show that it is working.
If this light stays on, your vehicle needs service.
You should take your vehicle to the dealer at once.
To save your battery until you get there, turn off
all accessories.
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Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part is not working, the other
part can still work and stop you. For good braking,
though, you need both parts working well.
If the warning light comes on, there is a brake
problem. Have your brake system inspected
right away.
This light should come on briey when you turn the
ignition key to RUN. If it does not come on then,
have it xed so it will be ready to warn you if there’s
a problem.When the ignition is on, the brake system warning
light will also come on when you set your parking
brake. The light will stay on if your parking brake
does not release fully. If it stays on after your
parking brake is fully released, it means you
have a brake problem.
If the light comes on while you are driving, pull off
the road and stop carefully. You may notice that the
pedal is harder to push, or the pedal may go closer
to the oor. It may take longer to stop. If the light is
still on, have the vehicle towed for service. See
Towing Your Vehicle on page 313.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.United StatesCanada
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Anti-Lock Brake System
Warning Light
With the anti-lock brake
system, the light(s) will
come on when your
engine is started and
may stay on for
several seconds.
That’s normal.
If the light stays on, turn the ignition to OFF. Or, if
the light comes on when you’re driving, stop as
soon as possible and turn the ignition off. Then start
the engine again to reset the system. If the light still
stays on, or comes on again while you’re driving,
your vehicle needs service. If the regular brake
system warning light isn’t on, you still have brakes,
but you don’t have anti-lock brakes. If the regular
brake system warning light is also on, you don’t
have anti-lock brakes and there’s a problem with
your regular brakes. SeeBrake System Warning
Light on page 201.
The anti-lock brake system warning light will come
on briey when you turn the ignition key to RUN.This is normal. If the light doesn’t come on then,
have it xed so it will be ready to warn you if there
is a problem.Traction Control System (TCS)
Warning Light
This warning light
should come on briey
when the engine is
started.
If the warning light does not come on then, have it
xed so it will be ready to warn you if there is a
problem. If it stays on, or comes on when you are
driving a SERVICE TRACTION CONTROL
message will appear in the Driver Information
Center (DIC). This indicates that there may be a
problem with your traction control system and your
vehicle may need service. When this warning light
is on and the SERVICE TRACTION CONTROL
message appears on the DIC, the system will not
limit wheel spin. Adjust your driving accordingly.
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This light should come on, as a check to show you it
is working, when the ignition is on and the engine is
not running. If the light does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
Light Flashing— A misre condition has been
detected. A misre increases vehicle emissions
and may damage the emission control system
on your vehicle. Diagnosis
and service may be required.
Light On Steady— An emission control
system malfunction has been detected on
your vehicle. Diagnosis and service may be
required.
If the Light Is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possibleIf the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service
as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 330.
The diagnostic system can determine if the fuel cap
has been left off or improperly installed. A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere. A few driving trips with the cap
properly installed should turn the light off.
207

Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become so
hot that it catches re. You or others could
be burned. Check your oil as soon as
possible and have your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.This light tells you if
there could be a
problem with your
engine oil pressure.
The light goes on when you turn your key to RUN or
START. It goes off once you start your engine. That
is a check to be sure the light works. If it does not
come on, be sure to have it xed so it will be there
to warn you if something goes wrong.
When the light comes on and stays on, it means
that oil is not owing through your engine properly.
You could be low on oil and you might have
some other system problem.
209

Security Light
For information
regarding this
light, see
PASS-Key
®III+
Operation on page 112.
Fog Lamp Light
The fog lamp light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 173for
more information.
Cruise Control Light
This light comes on
whenever you set the
cruise control.
The light goes out when the cruise control is
turned off. SeeCruise Control on page 167for
more information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
SeeHeadlamp High/Low-Beam Changer on
page 163.
210

DIC Buttons
The buttons are the trip/fuel, vehicle information,
customization, and set/reset buttons. The button
functions are detailed in the following pages.
3(Trip/Fuel):Press this button to display the
odometer, trip odometers, fuel range, average
economy, instantaneous economy, and average
speed.
T(Vehicle Information):Press this button
to display the oil life, park assist on vehicles with
this feature, units, tire pressure readings and Tire
Pressure Monitor (TPM) system programming,
compass zone and compass calibration on vehicles
with this feature, and Remote Keyless Entry (RKE)
transmitter programming.
U(Customization):Press this button to
customize the feature settings on your vehicle.
SeeDIC Vehicle Customization on page 231
for more information.
V(Set/Reset):Press this button to set or reset
certain functions and to turn off or acknowledge
messages on the DIC.
Trip/Fuel Menu Items
3
(Trip/Fuel):Press this button to scroll
through the following menu items:
Odometer
Press the trip/fuel button until ODOMETER
displays. This display shows the distance the
vehicle has been driven in either miles (mi)
or kilometers (km).
Trip A and Trip B
Press the trip/fuel button until TRIP A or TRIP B
displays. This display shows the current distance
traveled in either miles (mi) or kilometers (km)
since the last reset for each trip odometer. Both
trip odometers can be used at the same time.
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