2007 BUICK TERRAZA maintenance schedule

Maintenance Schedule.............................. 505
Maintenance Schedule
.......................... 506Customer Assistance Information............. 525
Customer Assistance and Information
... 526
Reporting Safety Defects
...................... 543
Index.......................................................... 547
2

Rear Air Outlets
The outlet behind the left rear seat is the cold
air return outlet. Be sure to keep it free from
obstructions. Also, keep the area around the base
of the center instrument panel console, between
and under the front seats, free of objects that could
also obstruct airow to the rear seating area.
For more information on how to use the main
climate control system, seeDual Climate Control
System on page 197. For information on
ventilation, seeOutlet Adjustment on page 200.
Passenger Compartment Air Filter
Passenger compartment air, both outside and
recirculated air, is routed through a passenger
compartment lter. The lter removes most
particles from the air, including dust particles.
Reductions in airow, which may occur more
quickly in dusty areas, indicate that the lter
needs to be replaced early. For how often to
change the air lter, seeScheduled Maintenance
on page 509.The access panel for the passenger compartment
air lter is located in the back of the glove box.
To replace the lter, do the following:
1. Pull the tab located on the outer access
panel up and out.
205

{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.
Security Light
For information
regarding this light,
seeTheft-Deterrent
Systems on page 123.
Cruise Control Light
This light comes on
whenever you set
your cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 177
for more information.
Highbeam On Light
This light will come on
when the high-beam
headlamps or the
Flash-to-Pass feature
is in use.
SeeHeadlamp High/Low-Beam Changer on
page 174.
221

Your vehicle’s charging system regulates voltage
based on the state of the battery. The battery
voltage may uctuate when viewing this
information on the DIC. This is normal.
If there is a problem with the battery charging
system, a DIC message will display. See
DIC Warnings and Messages on page 230for
more information.
Oil Life
Press the information button until OIL LIFE
displays. This mode shows an estimate of the oil’s
remaining useful life. If you see OIL LIFE 99%
on the display, that means 99% of the current oil
life remains. The engine oil life system will
alert you to change your oil on a schedule
consistent with your driving conditions.
When the remaining oil life is low, the CHANGE
OIL SOON message will appear on the display.
You should change your oil as soon as possible.
SeeEngine Oil on page 411. In addition to the
engine oil life system monitoring the oil life,
additional maintenance is recommended in the
Maintenance Schedule in this manual. See
Scheduled Maintenance on page 509for more
information.Remember, you must reset the OIL LIFE yourself
after each oil change. It will not reset itself.
Also, be careful not to reset the OIL LIFE
accidentally at any time other than when the oil
has just been changed. It cannot be reset
accurately until the next oil change. To reset
the engine oil life system, seeEngine Oil
Life System on page 414. The display will show
100% when the system is reset.Menu Button Items
q
(Menu):Press this button to scroll through the
following items:
Units
Press the menu button until UNITS displays. This
mode allows you to select between English or
Metric units of measurement. Once in this mode,
press the set/reset button to select between
ENGLISH or METRIC.
227

CHANGE OIL SOON
This message displays when service is required
for the vehicle. See your dealer. SeeEngine Oil
on page 411andScheduled Maintenance on
page 509for more information.
The CHANGE OIL SOON message is reset by
acknowledging the message. The OIL LIFE screen
under the gages menu on the DIC must also be
reset. See “Oil Life” underDIC Operation and
Displays on page 224andEngine Oil Life System
on page 414.
This message displays while the ignition is in RUN.
Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
CHARGING SYSTEM FAILURE
This message displays when there is a problem
with the generator and battery charging systems.
Driving with this problem could drain the battery.
Turn off all unnecessary accessories. Stop
and turn off the vehicle as soon as it is safe to do
so. Have the electrical system checked by your
dealer immediately.
This message displays and a chime sounds while
the ignition is in RUN. Press any of the DIC
buttons to acknowledge this message and to clear
it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if
the message has been acknowledged, but the
condition still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
232

Maintenance When Trailer Towing
Your vehicle will need service more often when
you are pulling a trailer. See the Maintenance
Schedule for more on this. Things that are
especially important in trailer operation are
automatic transaxle uid, engine oil, belts, cooling
system, and brake system. Each of these is
covered in this manual, and the Index will help
you nd them quickly. If you are trailering, it is a
good idea to review these sections before you
start your trip.Check periodically to see that all hitch nuts and
bolts are tight.
Trailer Wiring Harness
Your vehicle may have a trailer wiring harness
package located in the glove box. It can be
connected from the rear of your vehicle to your
trailer. Contact your dealer for more information.
396

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 410
for the location of the engine air cleaner/lter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change
after each 50,000 mile (85 000 km) interval.SeeScheduled Maintenance on page 509for
more information. If you are driving in dusty/dirty
conditions, inspect the lter at each engine oil
change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/lter, remove the lter
from the vehicle and lightly shake the lter to
release loose dust and dirt. If the lter remains
caked with dirt, a new lter is required. Do not use
compressed air to clean the lter.
To inspect or replace the air cleaner/lter, do the
following:
1. Remove the two clamps on the duct.
2. Remove the duct.
3. Unlatch the two hooks on top of the engine air
cleaner/lter housing.
4. Inspect or replace the engine air cleaner/lter.
5. Align the tabs located on the bottom of the
panel with the slots at the bottom of the
housing.
416

Then, without shutting off the engine, follow these
steps:
1. Pull out the dipstick and wipe it with a clean
rag or paper towel.
The automatic transaxle dipstick is located
toward the back of the engine compartment,
near the brake master cylinder reservoir.
The dipstick handle is a red loop. SeeEngine
Compartment Overview on page 410for
more information on location.
2. Push it back in all the way, wait
three seconds, and then pull it back out again.
3. Check both sides of the dipstick, and read the
lower level. The uid level must be in the
cross-hatched area.
4. If the uid level is in the acceptable range,
push the dipstick back in all the way.How to Add Automatic Transaxle Fluid
Refer to the Maintenance Schedule to determine
what kind of transaxle uid to use. See
Recommended Fluids and Lubricants on page 518.
If the uid level is low, add only enough of the
proper uid to bring the level into the
cross-hatched area on the dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough uid at
the dipstick hole to bring it to the proper level.
It does not take much uid, generally less
than one pint (0.5 L). Do not overll.
Notice:Use of the incorrect automatic
transaxle uid may damage your vehicle, and
the damages may not be covered by your
warranty. Always use the automatic transaxle
uid listed inRecommended Fluids and
Lubricants on page 518.
3. After adding uid, recheck the uid level as
described under “How to Check Automatic
Transaxle Fluid,” earlier in this section.
4. When the correct uid level is obtained, push
the dipstick back in all the way.
419