2007 BUICK RANDEZVOUS ECU

To replace the windshield wiper blade assembly
do the following:
1. Lift the wiper arm away from the windshield.2. Push the release lever (B) to disengage the
hook and push the wiper arm (A) out of the
blade (C).
3. Push the new wiper blade securely on the
wiper arm until you hear the release lever
click into place.
To replace the rear wiper blade, follow the steps
listed above.
405

To reset the system, do the following:
1. With the engine off, turn the ignition to ON.
2. Press the MODE button until the DIC reads
LOW TIRE PRESSURE HOLD SET TO
RESET.
3. Press and hold the SET button until you hear
a chime, and TIRE PRESSURE RESET is
displayed.
You will hear three chimes, then the LOW TIRE
PRESSURE message will go off and the DIC
will return to TIRE PRESSURE NORMAL. If the
LOW TIRE PRESSURE message comes back on,
the check tire pressure system has not reset.
Repeat the procedure.
The system completes the calibration process
during driving. The system learns the pressure at
each tire throughout the operating speed range
of your vehicle. The system normally takes
between 30 and 60 minutes of driving to learn
the tire pressures. The system normally takes
10 to 20 minutes of driving in each speed range
to learn tire pressures. The speed ranges are
20 to 40 mph (32 to 64 km/h), 40 to 60 mph
(64 to 96 km/h), and above 60 mph (96 km/h).
This time may be longer depending on yourindividual driving habits. The learning process
does not need to be completed during a single trip.
Once learned, the system will remember the tire
pressure until the system is reset.
Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your tires
as soon as possible and check wheel alignment.
Also check for damaged tires or wheels. SeeWhen
It Is Time for New Tires on page 418andWheel
Replacement on page 422for more information.
Make sure the spare tire is stored securely. Push,
pull, and then try to rotate or turn the tire, If it
moves, use the folding wrench to tighten the cable.
SeeStoring a Flat or Spare Tire and Tools on
page 444.
The purpose of regular rotation is to achieve
more uniform wear for all tires on the vehicle. The
rst rotation is the most important. SeeScheduled
Maintenance on page 475.
416

4. Remove the protective cap covering the outlet.
5. Attach the other end of the hose to the
outlet.
6. Press the accessory inator switch. The light
in the switch will come on to show the system
is working.
If the accessory inator system does not turn on or
the light does not come on, the fuse may be blown
or installed incorrectly. SeeFuses and Circuit
Breakers on page 463or see your dealer for
service.
Your accessory inator will automatically shut off
after about 10 minutes. The light in the switch will
blink. After about one minute you can use the
system again. Press the inator switch and the
indicator light will come on.
Notice:If you run the accessory inator
longer than 30 minutes at a time, you could
damage the inator. The repairs would not be
covered by your warranty. Run the inator
for short periods of time only.After running the accessory inator for 30 minutes,
wait at least 10 minutes before restarting the
accessory inator.
To turn off the inator, do the following:
1. Press the switch and detach the hose, rst
from the inated object, then from the outlet.
2. Put the protective cap back on.
3. Place the inator kit tools in the pouch, and
store in the glove box.
To put the cover back on, line up the tabs at the
back of the cover and put it in place. Push down the
tab to secure the cover.
426

9. Tighten the wheel
nuts rmly in a
crisscross sequence,
as shown.
Notice:Wheel covers will not t on your
compact spare. If you try to put a wheel cover
on the compact spare, you could damage
the cover or the spare.
10. Do not try to put a wheel cover on the
compact spare tire. It will not t. Store
the wheel cover securely in the rear of the
vehicle until you have the at tire repaired or
replaced.Secondary Latch System
Your vehicle has an underbody mounted tire hoist
assembly equipped with a secondary latch system.
It is designed to stop the compact spare tire from
suddenly falling off your vehicle if the cable holding
the spare tire is damaged. For the secondary latch
to work, the tire must be stowed with the valve stem
pointing down. SeeStoring a Flat or Spare Tire and
Tools on page 444for instructions on storing the
spare tire correctly.
{CAUTION:
Before beginning this procedure read all
the instructions. Failure to read and follow
the instructions could damage the hoist
assembly and you and others could get
hurt. Read and follow the instructions
listed next.
441

For vehicles with aluminum wheels, remove
the center cap by tapping the back of the cap
with the folding wrench.
3. Remove the J-hook and the wing nut from the
back of the jack access door. Assemble the
wing nut and the J-hook.
4. Install the wing nut and the J-hook to the
D-ring through the center hole of the tire.
5. Tighten the wing nut to secure the tire to
the oor.
Push and pull on the tire to make sure the tire
is secure and does not move.
6. Put back all tools as they were stored in the
jack storage compartment and put the
compartment cover back on.
Slip the tabs on the side of the compartment
cover into the cover opening. Push the cover in
place and push down the tabs on the cover
so that it rests in the groove. This secures the
cover in place.Storing the Flat Tire (Vehicles
with a Rear Convenience Center)
A. D-Ring
B. Rear Convenience
Center
C. Wing Nut
D. J-HookE. Full-Size Tire
F. Cap on Bottom of
Storage
Compartment
1. Open the center storage compartment door of
the rear convenience center.
2. Remove the cap on the bottom of the storage
compartment and ip the D-ring up.
445

3. Lay the tire on top of the center storage
compartment with the valve stem down.
Make sure you can see the D-ring through
the center hole of the tire.
4. Remove the J-hook and the wing nut from the
back of the jack access door. Assemble the
wing nut and the J-hook.
5. Install the wing nut and the J-hook to the
D-ring through the center hole of the tire.
6. Tighten the wing nut to secure the tire to
the oor.
Push and pull on the tire to make sure the tire
is secure and does not move.
7. Put back all tools as they were stored in the
jack storage compartment and put the
compartment cover back on.
Slip the tabs on the side of the compartment
cover into the cover opening. Push the cover in
place and push down the tabs on the cover
so that it rests in the groove. This secures the
cover in place.Storing the Flat Tire
(Vehicles with a Stowable Seat)
A. Rear Convenience
Center
B. Full-Size Tire
C. D-RingD. Stowable Seat
Strap
E. Cargo Net Hook
F. J-Hook
G. Wing Nut
1. If the seatback is not in an upright position,
move it to an upright position.
2. There is a strap attached to each side of the
stowable seat. Hook the straps to the cargo
net hook in the rear of the vehicle.
446

3. Flip the D-ring so it is pointing outward.
4. Open the convenience center cover.
5. Stand the full-size tire up, in the tray against
the back of the seat with the valve stem
pointing out.
6. Remove the J-hook and the wing nut from the
back of the jack access door. Assemble the
wing nut and the J-hook.
7. Install the wing nut and the J-hook to the
D-ring through the center hole of the tire.
8. Tighten the wing nut to secure the tire to the
seatback.
Push and pull on the tire to make sure the tire
is secure and does not move.
9. Put back all tools as they were stored in the
jack storage compartment and put the
compartment cover back on.
Slip the tabs on the side of the compartment
cover into the cover opening. Push the cover in
place and push down the tabs on the cover
so that it rests in the groove. This secures the
cover in place.Storing the Flat Tire (Vehicles with a
Stowable Seatback Folded Flat)
A. Stowable Seat
B. Full-Size Tire
C. Wing NutD. J-Hook
E. D-Ring
1. Fold the seatback down and ip the D-ring up.
2. Lay the tire on the seatback with the valve
stem pointing up with the center hole of the
tire over the D-ring.
447

3. Remove the J-hook and the wing nut from the
back of the jack access door. Assemble the
wing nut and the J-hook.
4. Install the wing nut and the J-hook to the
D-ring through the center hole of the tire.
5. Tighten the wing nut to secure the tire to the
seatback.
6. Push and pull on the tire to make sure the tire
is secure and does not move.
7. Put back all tools as they were stored in the
jack storage compartment and put the
compartment cover back on.
Slip the tabs on the side of the compartment
cover into the cover opening. Push the cover in
place and push down the tabs on the cover
so that it rests in the groove. This secures the
cover in place.Storing the Spare Tire and Tools
{CAUTION:
Storing a jack, a tire, or other equipment
in the passenger compartment of the
vehicle could cause injury. In a sudden
stop or collision, loose equipment could
strike someone. Store all these in the
proper place.
448