2005 BUICK TERRAZA Owner's Manual

Due to the momentary switch design, your automatic
lights may be disabled even if the control is in the
AUTO position.
;(Parking Lamps):Turn the control to this position
to turn on the parking lamps together with the
following:
Taillamps
Instrument Panel Lights
5(Headlamps):Turn the control to this position to
turn on the headlamps, together with the previously
listed lamps and lights.
Wiper Activated Headlamps
This feature, if equipped, will automatically activate the
headlamps and parking lamps after the windshield
wipers have been in use for about 30 seconds and
when all of the following conditions are met.
The exterior lamp control is in AUTO.
The headlamps have not already been activated
by automatic lighting.
The automatic lighting feature has not been
disabled using the exterior lamp control.SeeExterior Lamps on page 3-14for additional
information.
If the wipers are activated for over 30 seconds and the
exterior lamp control is in the parking lamps position,
or the automatic lighting feature has been disabled using
the exterior lamp control, a HEADLAMPS SUGGESTED
message will appear on the Driver Information Center,
if equipped.
Headlamps on Reminder
If you turn the ignition to LOCK while leaving the lamps
on, you will hear a warning chime once the driver’s
door is opened.
Daytime Running Lamps (DRL)/
Automatic Headlamp System
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset. Fully
functional Daytime Running Lamps are required on
all vehicles rst sold in Canada.
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A light sensor on top of the instrument panel makes
the DRL work, so be sure it is not covered. The
DRL system will make front parking and turn signal
lamps come on in daylight when the following conditions
are met:
The ignition is on.
The exterior lamps control is off.
When the DRL are on, only your front turn signal lamps
will be on. Your instrument panel will not be lit up.
When it is dark enough outside, the exterior lamps
will come on automatically. When it is bright enough
outside, the exterior lamps will turn off and the DRL will
turn on. Of course, you may still turn on the headlamps
any time you need to.
If you start your vehicle in a dark garage, the automatic
headlamp system will come on immediately. Once
you leave the garage, it will take approximately
30 seconds for the automatic headlamp system to
change to DRL if it is light outside. During that delay,
your instrument panel cluster may not be as bright
as usual. Make sure your instrument panel brightness
control is in the full bright position. SeeInstrument
Panel Brightness on page 3-16.To idle your vehicle with the DRL and automatic
headlamps off, toggle the exterior lamp control to off
after starting the vehicle.
As with any vehicle, you should turn on the regular
headlamp system when you need it.Instrument Panel Brightness
The knob to adjust
the instrument panel
brightness is located in
the center of the interior
lamp controls.
Turn the knob clockwise to brighten the lights and
counterclockwise to dim them.
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Interior Lamps Control
The interior lamp control is
located to the right of the
exterior lamp controls
on the instrument panel to
the left of the steering
column.
R(Interior Lamp Override):Turn the outer knob to
this position to have your interior lamps remain off
while any door is open.
1(Door):Turn the outer knob to this position to turn
the interior lamps on while any door is open and
when the ignition key is removed from the ignition.
+(Interior Lamps):Turn the outer knob to
this position to turn the interior lamps on.
Turn the inner knob to adjust the instrument panel
brightness, described earlier in this section.
Dome Lamp
The dome lamp is located in the headliner and has
two buttons to manually turn it on or off. The dome lamp
will come on each time you open a door, unless you
turn on the interior lamps override feature. SeeInterior
Lamps Control on page 3-17.
Entry Lighting
With entry lighting, the interior of your vehicle is
illuminated so that you can see inside before you enter
your vehicle. The lamps will come on for 20 seconds
if you unlock your door using your key or the remote
keyless entry transmitter and the ignition is in LOCK.
After 20 seconds have passed, the interior lamps
will slowly fade out. The lamps will turn off before the
20 seconds if you do one of the following:
Lock all the doors using the key.
Press lock on the power door lock switch.
Press lock on the remote keyless entry transmitter.
When any door is opened, entry lighting is cancelled.
The interior lamps will stay on while any door or
the liftgate is open, and slowly fade out when all
doors and the liftgate are closed.
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The interior lamps may stay on for up to 25 seconds
after all doors have been closed if they have not been
locked. SeeDelayed Lighting on page 3-18.
To turn the entry lighting feature off or on, seeDIC
Vehicle Personalization (Uplevel Only) on page 3-68.
Delayed Lighting
The delayed lighting feature will continue to illuminate
the interior for 20 seconds after all doors have been
closed, so that you can nd your ignition and buckle your
safety belt at night. Delayed lighting will not occur
while the ignition is in RUN or ACCESSORY. After
20 seconds have passed, the interior lamps will slowly
fade out. The lamps will fade out before the 20 seconds
have passed if you do one of the following:
Turn the ignition to RUN or ACCESSORY.
Lock all doors using the remote keyless entry
transmitter.
Lock all doors using the power door lock switch
or the key.
To turn the delayed lighting feature off or on, seeDIC
Vehicle Personalization (Uplevel Only) on page 3-68.
Exit Lighting
With exit lighting, the interior lamps will come on for
about 25 seconds whenever you remove the key from
the ignition. If you turn the ignition key to RUN or
ACCESSORY, the lamps will fade out. The lamps will
also fade out if you lock the doors with the power
door lock switch or the remote keyless entry transmitter.
When any door is opened, exit lighting is cancelled.
The interior lamps will stay on while any door or
the liftgate is open, and slowly fade out when all doors
and the liftgate are closed.
The interior lamps may stay on for up to 20 seconds
after all doors have been closed if they have not been
locked. SeeDelayed Lighting on page 3-18.
To turn the exit lighting feature off or on, seeDIC
Vehicle Personalization (Uplevel Only) on page 3-68.
3-18

Front Reading Lamps
There are two reading lamps and one courtesy lamp in
the overhead console. To turn either reading lamp
on or off, press the lens of the lamp. The courtesy lamp
will come on each time you open a door, unless you
turn on the interior lamps override feature. SeeInterior
Lamps Control on page 3-17.
Rear Reading Lamps
There are two reading lamps in the third row headliner.
To turn either reading lamp on or off, press the lens
of the lamp.
There may also be a reading lamp in the second row,
integrated with the dome lamp. To turn the second
row reading lamp on or off, press the button next to
the lamp lens.
Cargo Lamp
The cargo lamp is located in the rear of your vehicle,
above the liftgate opening, and does not have a switch.
The cargo lamp will come on each time you open a
door, unless you turn on the interior lamps override.
SeeInterior Lamps Control on page 3-17.
Battery Run-Down Protection
Your vehicle has a feature to help prevent you from
draining the battery, in case you accidentally leave the
interior lamps on. If you leave any interior lamps on
while the ignition is in lock or off, they will automatically
turn off after 10 minutes. The lamps will not come
back on again until you do one of the following:
Turn the ignition to RUN or ACCESSORY
Open a closed door, or close and reopen a door.
Turn the interior lamps on if they are in the door
or override position.
Turn the interior lamps to the door or override
position and then to on again if the interior
lamp control is in the on position.
If your vehicle has less than 15 miles (25 km) on the
odometer, the battery saver will turn off the lamps after
only three minutes.
3-19

Overhead Console Switchbank
The overhead console switchbank is located in the
overhead console. This switchbank may include
the following:
Power Sliding Door(s)/Override Switch(es).
SeePower Sliding Door (PSD) on page 2-16.
Power Rear Quarter Windows. SeePower
Rear Quarter Windows on page 2-25.
Ultrasonic Rear Parking Assist (URPA) Disable
Switch. SeeUltrasonic Rear Parking Assist
(URPA) on page 3-20.
If your vehicle does not have some of these options,
there will be a blank.
Ultrasonic Rear Parking Assist
(URPA)
If your vehicle is equipped with the Ultrasonic Rear
Parking Assist (URPA) system, it is designed to help you
park, while the vehicle is in REVERSE (R). It operates
only at very low speeds, less than 3 mph (5 km/h).
URPA can help make parking easier and to help you
avoid colliding with objects such as parked vehicles. The
URPA system can detect objects up to 5 feet (1.5 m)
behind the vehicle, and tell you how close these objects
are from your rear bumper.
Your vehicle’s URPA operates when the shift lever is
moved into REVERSE (R) and the vehicle speed is less
than 3 mph (5 km/h). Four ultrasonic sensors located
at the rear bumper are used to detect the distance to the
object. The URPA display is located inside the vehicle,
near the rear window. It has three color-coded lights
used to provide distance and system information to
the driver.
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{CAUTION:
Even with the Ultrasonic Rear Park Assist
system, the driver must check carefully before
backing up. The system does not operate above
typical backing speeds of 3 mph (5 km/h) while
parking. And, the system does not detect
objects that are more than 5 feet (1.5 meters)
behind the vehicle.
So, unless you check carefully behind you
before and when you back up, you could strike
children, pedestrians, bicyclists or pets behind
you, and they could be injured or killed.
Whether or not you are using rear park assist,
always check carefully behind your vehicle
before you back up and then watch closely
as you do.URPA can be turned off by
pressing the rear park aid
disable switch located
in the overhead console
switchbank. While the
system is disabled,
an indicator light will be lit
on the switch. You will
not see any lights on the
rear display if the switch is
in the off position.
3-21

How the System Works
Unless disabled, the URPA will turn on automatically
when the shift lever is moved into REVERSE (R). When
the system turns on, the three lights on the display
will illuminate for one and a half seconds to let you know
that the system is working. If your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph (5 km/h),
the red light will ash to remind you that the system
does not work at speed greater than 3 mph (5 km/h).
If an object is detected at a REVERSE (R) speed of less
than 3 mph (5 km/h), one of the following will occur:
Description English Metric
amber light 5 ft 1.5 m
amber/amber lights 40 in 1.0 m
amber/amber/red lights &
continuous chime20 in 0.5 m
amber/amber/red lights
ashing & continuous
chime1 ft 0.3 m
A chime will sound the rst time an object is detected
between 20 inches (0.5 m) and 5 feet (1.5 m) away.URPA cannot detect objects that are above liftgate
level. In order for the rear sensors to recognize
an object, it must be within detection range behind the
vehicle.
When the System Does Not Seem to Work
Properly
The light may ash red when the vehicle is in
REVERSE (R) if the ultrasonic sensors are not kept
clean. So be sure to keep your rear bumper free of mud,
dirt, snow, ice and slush. Other conditions that may
affect system performance include things like the
vibrations from a jackhammer or the compression of air
brakes on a very large truck. If after cleaning the
rear bumper and then driving forward at least 15 mph
(25 km/h), the display continues to ash red, see
your dealer.
If a trailer was attached to your vehicle, or a bicycle or
an object was on the back of, or hanging out of your
liftgate during your last drive cycle, the light may
also ash red. The light will continue to ash whenever
in REVERSE (R) until your vehicle is driven forward
at least 15 mph (25 km/h) without any obstructions
behind the vehicle.
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