Black plate (25,1)Buick Lucerne Owner Manual - 2011
Notice:Shifting to R (Reverse) while the vehicle is
moving forward could damage the transmission.
The repairs would not be covered by the vehicle
warranty. Shift to R (Reverse) only after the vehicle
is stopped.
To rock the vehicle back and forth to get out of snow,
ice, or sand without damaging the transmission, see If
Your Vehicle is Stuck in Sand, Mud, Ice, or Snow
on
page 5‑17.
N (Neutral): In this position, the engine does not
connect with the wheels. To restart the engine when the
vehicle is already moving, use N (Neutral) only. Also,
use N (Neutral) when the vehicle is being towed.
{WARNING:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless your
foot is firmly on the brake pedal, the vehicle could
move very rapidly. You could lose control and hit
people or objects. Do not shift into a drive gear
while the engine is running at high speed. Notice:
Shifting out of P (Park) or N (Neutral) with
the engine running at high speed may damage the
transmission. The repairs would not be covered by
the vehicle warranty. Be sure the engine is not
running at high speed when shifting the vehicle.
D (Drive): This position is for normal driving. It provides
the best fuel economy. If you need more power for
passing, and you are:
.Going less than about 35 mph (55 km/h), push the
accelerator pedal about halfway down.
.Going about 35 mph (55 km/h) or more, push the
accelerator all the way down.
The transmission will shift down to the next gear
and have more power.
Downshifting the transmission in slippery road
conditions could result in skidding, see “Skidding”under
Loss of Control on page 5‑10
3 (Third): This position is also used for normal driving.
It reduces vehicle speed more than D (Drive) without
using the brakes. You might choose 3 (Third) instead of
D (Drive) when driving on hilly, winding roads, when
towing a trailer, so there is less shifting between gears
and when going down a steep hill.
3-25
Black plate (6,1)Buick Lucerne Owner Manual - 2011
If the headlamps are off or on low beam, the high-beam
headlamps will turn on. They will stay on as long as you
hold the lever toward you and the high-beam indicator
on the instrument panel cluster will come on.
Windshield Wipers
The windshield wiper lever is located on the left side of
the steering column.
Turn the band with the wiper symbol on it to control the
windshield wipers.
8(Mist):For a single wiping cycle, hold it on mist until
the wipers start, then release. The wipers stop after one
wipe. Several wipes, hold the band longer.
6(Delay): Use to set the delay time between wipe
cycles. The wiper speed can be set for a long or short
delay between wipes. The closer the band is set to the
top of the lever, the shorter the delay.
6 (Low Speed): Slow wipes.
1 (High Speed): Fast wipes.
9 (Off): Turns the wipers off.
Clear ice and snow from the wiper blades before using
them. If frozen to the windshield, carefully loosen or
thaw them. Damaged blades should be replaced.
Heavy snow or ice can overload the wiper motor.
A circuit breaker will stop the motor until it cools.
The vehicle has wiper-activated headlamps. After the
windshield wipers have completed eight wipe cycles
within four minutes, the headlamps automatically turn
on. See Wiper Activated Headlamps
on page 4‑11for
more information.
4-6
Black plate (32,1)Buick Lucerne Owner Manual - 2011
If, after several seconds, both 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.
{WARNING:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. To help avoid injury to
yourself or others, have the vehicle serviced right
away. SeeAirbag Readiness Light
on page 4‑30
for more information, including important safety
information.
Charging System Light
This light comes on briefly
when the ignition key is
turned to START, but the
engine is not running, as
a check to show it is
working. If it does not, have the vehicle serviced by your dealer.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a problem
with the charging system. A charging system message
in the Driver Information Center (DIC) can also appear.
See
DIC Warnings and Messages
on page 4‑49for
more information. This light could indicate that there are
problems with a generator drive belt, or that there is an
electrical problem. Have it checked right away. If the
vehicle must be driven a short distance with the light
on, turn off accessories, such as the radio and air
conditioner.
Brake System Warning Light
The vehicle brake system consists of two hydraulic
circuits. If one circuit is not working, the remaining
circuit can still work to stop the vehicle. For normal
braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem.
Have the brake system inspected right away.
4-32
Black plate (33,1)Buick Lucerne Owner Manual - 2011
EnglishMetric
This light should come on briefly when the engine is
started. If it does not come on then, have it fixed so it
will be ready to warn if there is a problem.
When the ignition is on, the brake system warning light
also comes on when the parking brake is set. The light
will stay on if the parking brake does not fully release.
If it stays on after the parking brake is fully released, it
means there is a brake problem.
{WARNING:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service. If the light comes on while driving, pull off the road and
stop carefully. The pedal can be harder to push, or the
pedal could go closer to the floor. It could take longer to
stop. Try turning off and restarting the vehicle one or
two times, if the light is still on, have the vehicle towed
for service. See
Towing Your Vehicle on page 5‑23.
Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briefly when the engine is
started.
If it does not, have the vehicle serviced by your dealer.
If the system is working normally the indicator light then
goes off.
If the ABS light stays on, turn the ignition off. If the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is not
on, the vehicle still has brakes, but not antilock brakes.
4-33
Black plate (36,1)Buick Lucerne Owner Manual - 2011
Engine Coolant Temperature
Warning Light
This light comes on briefly
while starting the vehicle.
If it does not, have the vehicle serviced by the dealer.
If the system is working normally the indicator light
goes off.
Notice: Driving with the engine coolant temperature
warning light on could cause the vehicle to
overheat. See Engine Overheating
on page 6‑35.
The vehicle's engine could be damaged, and it
might not be covered by the vehicle warranty. Never
drive with the engine coolant temperature warning
light on.
The engine coolant temperature warning light comes on
when the engine has overheated.
If this happens pull over and turn off the engine as soon
as possible. See Engine Overheating
on page 6‑35for
more information.
Engine Coolant Temperature Gauge
EnglishMetric
This gauge shows the engine coolant temperature.
If the pointer moves towards the H (United States) or
shaded in thermostat symbol area (Canada), the engine
is too hot.
A temperature indicator light will turn on and a chime
will sound.
If the vehicle has been operating under normal driving
conditions, and the temperature indicator light comes
on, pull off the road, stop the vehicle and turn off the
engine as soon as possible.
4-36
Black plate (37,1)Buick Lucerne Owner Manual - 2011
Tire Pressure Light
For vehicles with a Tire
Pressure Monitoring
System, this light comes
on briefly when the engine
is started. It provides
information about tire
pressures and the Tire
Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is
significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDriver
Information Center (DIC)
on page 4‑42for more
information. Stop and check the tires as soon as it is
safe to do so. If underinflated, inflate to the proper
pressure. See Inflation - Tire Pressure
on page 6‑64for more information.
When the Light Flashes First and Then is
On Steady
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light flashes for about a
minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. SeeTire Pressure Monitor Operation
on
page 6‑66for more information.
Malfunction Indicator Lamp
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment.
This light should come on
when the ignition is on,
but the engine is not
running, as a check to
show it is working. If it
does not, have the vehicle
serviced by your dealer.
If the Malfunction Indicator Lamp comes on and stays
on, while the engine is running, this indicates that there
is an OBD II problem and service is required.
4-37
Black plate (38,1)Buick Lucerne Owner Manual - 2011
Malfunctions often are indicated by the system before
any problem is apparent. Being aware of the light can
prevent more serious damage to the vehicle. This
system assists the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is continually driven with this
light on, after a while, the emission controls might
not work as well, the vehicle fuel economy might
not be as good, and the engine might not run as
smoothly. This could lead to costly repairs that
might not be covered by the vehicle warranty.
Notice: Modifications made to the engine,
transmission, exhaust, intake, or fuel system
of the vehicle or the replacement of the original
tires with other than those of the same Tire
Performance Criteria (TPC) can affect the vehicle's
emission controls and can cause this light to come
on. Modifications to these systems could lead to
costly repairs not covered by the vehicle warranty.
This could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 6‑3.
This light comes on during a malfunction in one of
two ways:
Light Flashing: A misfire condition has been detected.
A misfire increases vehicle emissions and could
damage the emission control system on the vehicle.
Diagnosis and service might be required. To prevent more serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the amount of cargo
being hauled as soon as it is possible.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the vehicle off, wait at least 10 seconds, and
restart the engine. If the light is still flashing, follow the
previous steps and see your dealer for service as soon
as possible.
Light On Steady: An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
The following may correct an emission system
malfunction:
.Make sure the fuel cap is fully installed. See Filling
the Tankon page 6‑9. The diagnostic system
can determine if the fuel cap has been left off or
improperly installed. A loose or missing fuel cap
allows fuel to evaporate into the atmosphere. A few
driving trips with the cap properly installed should
turn the light off.
4-38
Black plate (44,1)Buick Lucerne Owner Manual - 2011
To use the retro-active reset feature, press and hold
the set/reset button for at least four seconds. The trip
odometer will display the number of kilometers (km) or
miles (mi) driven since the ignition was last turned on
and the vehicle was moving. Once the vehicle begins
moving, the trip odometer will accumulate mileage. For
example, if the vehicle was driven 8 km (5 miles) before
it is started again, and then the retro-active reset feature
is activated, the display will show 8 km (5 miles). As the
vehicle begins moving, the display will then increase to
8.2 km (5.1 miles), 8.4 km (5.2 miles), etc.
If the retro-active reset feature is activated after the
vehicle is started, but before it begins moving, the
display will show the number of kilometers (km) or
miles (mi) that were driven during the last ignition cycle.
Fuel Range
Press the trip/fuel button until FUEL RANGE displays.
This display shows the approximate number of
remaining kilometers (km) or miles (mi) the vehicle can
be driven without refueling.
The fuel range estimate is based on an average of the
vehicle's fuel economy over recent driving history and
the amount of fuel remaining in the fuel tank. This
estimate will change if driving conditions change. For
example, if driving in traffic and making frequent stops,
this display may read one number, but if the vehicle is
driven on a freeway, the number may change even
though the same amount of fuel is in the fuel tank.This is because different driving conditions produce
different fuel economies. Generally, freeway driving
produces better fuel economy than city driving.
If your vehicle is low on fuel, the FUEL LEVEL LOW
message will be displayed. See
“FUEL LEVEL LOW”
under DIC Warnings and Messages
on page 4‑49for
more information.
Average Economy
Press the trip/fuel button until AVG ECONOMY
displays. This display shows the approximate average
liters per 100 kilometers (L/100 km) or miles per gallon
(mpg). This number is calculated based on the number
of L/100 km (mpg) recorded since the last time this
menu item was reset. To reset AVG ECONOMY, press
and hold the set/reset button. The display will return
to zero.
Instantaneous Economy
Press the trip/fuel button until INST ECONOMY
displays. This display shows the current fuel economy
at a particular moment and will change frequently as
driving conditions change. This display shows the
instantaneous fuel economy in liters per 100 kilometers
(L/100 km) or miles per gallon (mpg). Unlike average
economy, this screen cannot be reset.
4-44