2007 BUICK RANDEZVOUS Owner's Manual

You may notice a slight change in engine
performance when the air-conditioning compressor
shuts off and turns on again. This is normal.
The system is designed to make adjustments to
help with fuel economy while still maintaining
the selected temperature.
On hot days, open the windows to let hot inside
air escape; then close them. This helps to reduce
the time it takes for your vehicle to cool down.
It also helps the system to operate more efficiently.
The air-conditioning system removes moisture
from the air, so you may sometimes notice a small
amount of water dripping underneath your
vehicle while idling or after turning off the engine.
This is normal.
Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity, or moisture, condensing on the cool
window glass. This can be minimized if the climate
controls system is used properly. There are two
modes to clear fog or frost from your windshield.
Use the defog mode to clear the windows of fog or
moisture and warm the passengers. Use the
defrost mode to remove fog or frost from
the windshield more quickly.Use the MODE button to select the defog mode.
-(Defog):This mode directs air to the
windshield and the oor outlets. When you select
this mode, the system turns off recirculation
and runs the air-conditioning compressor unless
the outside temperature is at or below freezing.
The recirculation mode cannot be selected while in
the defog mode.
Press the defrost button to select defrost.
0(Defrost):This mode directs most of the air to
the windshield and the side window outlets, with
some air directed to the oor outlets. In this mode,
the system will automatically turns off recirculation
and run the air-conditioning compressor, unless
the outside temperature is at or below freezing.
Recirculation cannot be selected while in the
defrost mode.
Do not drive the vehicle until all the windows are
clear.
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Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
window defogger on or off. An indicator light in the
button will come on to let you know that the
rear window defogger is activated.
The rear window defogger will turn off
approximately 10 minutes after the button is
pressed. If turned on again, the defogger will only
run for approximately ve minutes before
turning off. The defogger can also be turned off by
pressing the button again or by turning off the
engine.
If your vehicle has heated outside rearview
mirrors, the mirrors will heat to help clear fog or
frost from the surface of the mirror when the
rear window defog button is pressed.
Notice:Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, and the repairs
would not be covered by your warranty. Do not
attach a temporary vehicle license, tape, a decal
or anything similar to the defogger grid.
Outlet Adjustment
Use the louvers located on the air outlets to
change the direction of the airow.
Operation Tips

Clear away any ice, snow, or leaves from the
air inlets at the base of the vehicle that may
block the ow of air into your vehicle.
Do not use any non-GM approved hood
deectors that could adversely affect the
performance of the system.
Keep the path under the front seats clear of
objects to help circulate the air inside of
your vehicle more effectively.
210

Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
that may be on your vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that
something is wrong before it becomes serious
enough to cause an expensive repair or
replacement. Paying attention to your warning
lights and gages could also save you or others
from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As
you will see in the details on the next few
pages, some warning lights come on briey when
you start the engine just to let you know they
are working. If you are familiar with this section,
you should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions. Often
gages and warning lights work together to let you
know when there’s a problem with your vehicle.
When one of the warning lights comes on and
stays on when you are driving, or when one of the
gages shows there may be a problem, check
the section that tells you what to do about
it. Please follow this manual’s advice. Waiting to
do repairs can be costly – and even dangerous. So
please get to know your warning lights and
gages. They are a big help.
Your vehicle also has a message center that
works along with the warning lights and gages.
SeeMessage Center on page 225.
211

Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You’ll
know how fast you’re going, how much fuel you’re using, and many other things you’ll need to drive
safely and economically. The indicator warning lights and gages are explained on the following pages.
United States up-level shown, United States base-level and Canadian similar
212

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 (used in the
United States) or kilometers (used in Canada).
However, a Canadian odometer will remain
in metric units only.
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 that will be done. 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.
If your vehicle is equipped with the Driver
Information Center (DIC), you may toggle the
odometer to display either miles, available only in
the United States, or kilometers. SeeDriver
Information Center (DIC) on page 235.
Trip Odometer
In addition to the standard odometer, the cluster
can also display a trip odometer. The display can
be toggled between the odometer and the trip
odometer by quickly pressing and releasing the
trip/reset button located to the right of the
temperature gage. The trip odometer will continue
to keep track of miles or kilometers driven even if
they are not currently displayed. A Canadian trip
odometer will remain in metric units only. To reset
the trip odometer to zero (0), push and hold the
trip/reset button for at least one and a half seconds,
but less than three seconds. The trip odometer that
is showing in the display will be reset.
213

Retro-Active Reset
The trip odometer has a feature called retro-active
reset. This feature can be used to set the trip
odometer to the number of miles or kilometers
driven since the ignition was last turned on. This
can be used if you forget to reset your trip odometer
at the beginning of a trip. To use the retro-active
reset feature, push and hold the trip/reset button for
at least ve seconds. The trip odometer will then
display the number of miles or kilometers driven
since the ignition was last turned on and you began
driving. If you use the retro-active reset feature after
you have started the vehicle, but before you begin
moving, the display will show the number of miles
or kilometers you drove during the last ignition
cycle. Once you begin driving, the trip odometer will
accumulate mileage. For example, if you have
driven 5.0 miles (8.0 km) since you started your
vehicle, and then activate the retro-active reset
feature, the display will show 5.0 miles (8.0 km). As
you drive, the display will then increase to 5.1 miles
(8.2 km), 5.2 miles (8.4 km), etc.
Tachometer
The tachometer displays
the engine speed in
revolutions per
minute (rpm).
214

Safety Belt Reminder Light
When the key is turned to ON or START, a chime
will come on for several seconds to remind
people to fasten their safety belts.
The safety belt light will
also come on and stay
on for several
seconds, then it will
ash for several more.
If the driver remains unbuckled when the ignition
is on and the vehicle is in motion, the chime
and the safety belt light will be repeated. You
should buckle your safety belt. If the driver’s belt
is already 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 sensor, the airbag modules,
the wiring, diagnostic module, and safety belt
pretensioners. For more information on the airbag
system, seeAirbag System on page 88. For
more information on safety belt pretensioners, see
Safety Belt Pretensioners on page 56.
215

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.
If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system or safety belt pretensioners
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 ON.
If the light does not come on then, have it xed so
it will be ready to warn you if there is a problem.
216