ECU BUICK RANDEZVOUS 2005 Workshop Manual

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 5-65andWheel Replacement
on page 5-68for 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 5-88.
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 6-4.When rotating your tires, always use the correct rotation
pattern shown here.
Do not include the compact spare tire in your tire
rotation.
After the tires have been rotated, adjust the front and
rear ination pressures as shown on the Tire and
Loading Information label.
Reset the check tire pressure system, if equipped. See
Check Tire Pressure System on page 5-62.
Make certain that all wheel nuts are properly tightened.
See “Wheel Nut Torque” underCapacities and
Specications on page 5-112.
5-64

{CAUTION:
Inating something too much can make it
explode, and you or others could be injured.
Be sure to read the inator instructions, and
inate any object only to its recommended
pressure.
To use your accessory inator system, do the following:
1. Turn the ignition to ACCESSORY or ON.
2. Attach the appropriate nozzle adapter, if required,
to the end of the hose that has the pressure gage.
3. Attach that end of the hose to the object you wish
to inate.
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 5-105or 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.
5-71

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 5-88
for 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 below.
5-84

Storing a Flat or Spare Tire and
Tools
Storing the Flat Tire (Vehicles without
Stowable Seat and without Rear
Convenience Center)
A. D-Ring
B. Wing Nut
C. J-HookD. Valve Stem
E. Full-Size Tire1. Flip up the D-ring located in the rear cargo area.
2. Lay the tire in the rear cargo area of the vehicle with
the valve stem up with the center hole of the tire
over the D-ring.
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.
5-88

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.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.
5-89

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.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.
5-90

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.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.
5-91

3. Tilt the retainer downward and slip it through the
center hole of the spare tire.
Make sure the retainer is fully seated across the
underside of the wheel.
4. Attach the folding wrench to the hoist shaft.
5. Turn the folding wrench clockwise to lift the
spare tire.
6. When the tire reaches the stabilizer bar, move the
tire over the bar, then continue to turn the folding
wrench clockwise to lift the spare tire.
7. When the tire is almost in the stored position, turn
the tire so that the valve stem is towards the rear of
the vehicle.
This will help when you check and maintain tire
pressure in the spare.
8. Raise the tire fully against the underside of the
vehicle. Continue turning the folding wrench until
you feel more than two clicks. This indicates that the
compact spare tire is secure and the cable is
tight. The spare tire hoist cannot be overtightened.9. Make sure the tire is stored securely. Push, pull (A),
and then try to turn (B) the tire. If the tire moves,
use the folding wrench to tighten the cable.
10. Put back all tools as they were stored in the jack
storage compartment and put the compartment
cover back on.
To put the cover back on, slip the tabs on the side
of the 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.
5-93

Fuse Usage
34 Power Sunroof
35 Power Windows
36Map Lamps, Courtesy Lamps and
Instrument Panel Lights
37 Radio
38 UQ3 Radio Amplier
39 Head-Up Display
40 Hazard Flashers
41Instrument Panel Cluster, Climate
Control, Security LED and Remote
Keyless Entry Mode
42 PASS-Key
®III
44 Body Control Module (BCM)
46 Advanced Occupant System Module
Relay Usage
20 Rear Defogger Relay
23 Ignition Relay
27 Accessory Relay
33 Retained Accessory Power Relay
43 Accessory Diode
45 Back-Up Lamps
Underhood Fuse Block
This fuse block is located in the engine compartment,
on the passenger’s side of the vehicle. SeeEngine
Compartment Overview on page 5-12for more
information on location.
The back-up lamp relay (A) is located behind and to the
left of the underhood fuse block.
To remove the cover, press the two tabs in and lift up
the cover.
5-107

Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your tires and make sure tires are inated
to the correct pressures. Do not forget to check your
spare tire. SeeTires on page 5-55for further details.
Check to make sure the spare tire is stored securely.
Push, pull and then try to turn the spare tire. If it moves,
tighten it. SeeChanging a Flat Tire on page 5-72.
At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. SeeParking Brake on page 2-26if necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, contact
your GM Goodwrench dealer for service.
6-9