2003 BUICK RANDEZVOUS ECU

9. Lower the vehicle by attaching the folding wrench to
the jack and turning the wrench counterclockwise.
Lower the jack completely.
10. Tighten the wheel nuts
firmly in a crisscross
sequence, as shown.
{CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become
loose and even come off. This could lead to an
accident. Be sure to use the correct wheel
nuts. If you have to replace them, be sure to
get new GM original equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to 100
lb-ft (140Y).
Notice:Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
11. Don’t try to put a wheel cover on the compact spare
tire. It won’tfit. Store the wheel cover securely in
the rear of the vehicle until you have theflat
tire repaired or replaced.
Notice:Wheel covers won’tfit on your compact
spare. If you try to put a wheel cover on your
compact spare, you could damage the cover or
the spare.
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2003 - Rendezvous OM

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.
A. Push and Pull
B. Rotate Tire
9. Make sure the tire is stored securely. Push, pull,
and then try to rotate or turn the tire. If the tire
moves, use the folding wrench to tighten the cable.
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.
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When you replace the compact spare with a full-size
tire, reinstall the bolt-on wheel covers or the center cap,
which ever your vehicle has. Tighten them“hand
tight”over the wheel nuts, using the folding wrench.
Storing the Flat Tire (Vehicles without the
Stowable Seat and without the 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 thefloor.
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.
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2003 - Rendezvous OM

Storing the Flat Tire (Vehicles with the
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
Compartment1. Open the center storage compartment door of the
rear convenience center.
2. Remove the cap on the bottom of the storage
compartment andflip 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 thefloor.
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.
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Storing the Flat Tire (Vehicles with the
Stowable Seat)
A. Rear Convenience
Center
B. Full-Size Tire
C. D-Ring
D. Stowable Seat
StrapE. Cargo Net Hook
F. J-Hook
G. Wing Nut1. 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.
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Storing the Flat Tire with the Stowable
Seatback Folded Flat
A. Stowable Seat
B. Full-Size Tire
C. Wing NutD. J-Hook
E. D-Ring1. Fold the seatback down andflip 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.
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.
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Fuse Usage
10Turn Signal and Hazard Lamp
Flashers
11 Power Seats
12Electronic Level Control (ELC)
Compressor
13 Liftgate and Endgate
14 Rear Auxiliary Power Outlet
15Electronic Level Control (ELC)
Compressor Relay and Height
Sensor
16 Heated Mirrors
17 Power Mirrors
18 Ignition 1 Module
19Turn Signal Switch and NSBU
Switch
21 Rear Defogger
22 Air Bag Module
24Canister Vent Solenoid and TCC
Switch
25 HVAC Blower Motor
26HVAC Mode and Temperature
Motors and Head-Up Display
28 Not Used
29 Windshield Wipers and WasherFuse Usage
30Instrument Panel Cluster, BCM,
PASS-Key
®III
31 Park Lock Ignition Key Solenoid
32 Rear Window Wiper/Washer
34 Power Sunroof
35 Power Windows
36Map Lamps, Courtesy Lamps and
Instrument Panel Lights
37 Radio
38 UQ3 Radio Amplifier
39 Head-Up Display
40 Hazard Flashers
41Instrument Panel Cluster, HVAC
Control, Security LED and Remote
Keyless Entry Mode
42 PASS-Key
®III
44 Body Control Module (BCM)
Relay Usage
20 Rear Defogger Relay
23 IGN3 Relay
27 Accessory Relay
33 Retained Accessory Power Relay
43 Accessory Diode
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2003 - Rendezvous OM

Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-80.
Spare Tire Check
At least twice a year, after the monthly ination check of
the spare tire determines that the spare is inated to
the correct tire ination pressure, make sure that
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. SeeChanging a Flat Tire
on page 5-59.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. SeePart D: Recommended Fluids and
Lubricants on page 6-15.
Automatic Transaxle Check
Check the transaxleuid level; add if needed. See
Automatic Transaxle Fluid on page 5-17.Auid loss
may indicate a problem. Check the system and repair if
needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specied in Part D.
Body Lubrication Service
Lubricate all key lock cylinders, hood latch assemblies,
secondary latches, pivots, spring anchor and release
pawl, hood and door hinges, rear folding seats and
liftgate hinges. Part D tells you what to use. More
frequent lubrication may be required when exposed to a
corrosive environment.
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