2002 BUICK RANDEZVOUS ignition

6-45
Don't reset the check tire pressure system without first
correcting the cause of the problem and checking and
adjusting the pressure in all four tires. If you reset the
system when the tire pressures are incorrect, the check
tire pressure system will not work properly and may not
alert you when a tire is low or high.
To reset (calibrate) the system:
1. Place the vehicle in PARK (P) and remove your foot
from the brake pedal. The brake pedal should not be
depressed during this procedure.
2. Turn the ignition to ON with the engine off.
3. Press the MODE button until the DIC reads
LOW TIRE PRESSURE HOLD SET TO RESET.
4. Press and hold the SET button until you hear a chime
and TIRE PRESSURE RESET is displayed.
You will hear three chimes and 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. Calibration time can take 20 to 45 minutes,
depending on your driving habits. After the system
has been calibrated, the system will alert the driver
that a tire is low, up to a maximum speed
of 65 mph (105 km/h).
Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 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. See ªWhen It's Time for New Tiresº and
ªWheel Replacementº later in this section for 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. See
ªStoring a Flat or Spare Tire and Toolsº in the Index.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See ªScheduled
Maintenance Servicesº in the Index for scheduled
rotation intervals.

6-66
Fuses Usage
16 Heated Mirrors
17 Power Mirrors
18 Ignition 1 Module
19 Turn Signal Switch and
NSBU Switch
21 Rear Defogger
22 Air Bag Module
24 Canister Vent Solenoid and
TCC Switch
25 HVAC Blower Motor
26 HVAC Mode and Temperature
Motors and Head
-Up Display
28 Not Used
29 Windshield Wipers and Washer
30 Instrument Panel Cluster,
BCM, PASS
-Key
III
31 Park Lock Ignition Key Solenoid
32 Rear Window Wiper/Washer
34 Power SunroofFuses Usage
35 Power Windows
36 Map Lamps, Courtesy Lamps and
Instrument Panel Lights
37 Radio
38 UQ3 Radio Amplifier
39 Head
-Up Display
40 Hazard Flashers
41 Instrument Panel Cluster, HVAC
Control, Security LED and
Remote Keyless Entry Module
42 PASS
-Key
III
44 Body Control Module (BCM)
Relays Usage
20 Rear Defogger Relay
23 IGN3 Relay
27 Accessory Relay
33 Retained Accessory Power Relay
Diode
43 Accessory Diode

6-68
Mini Fuses Usage
6 Anti
-Lock Brakes (ABS)
Control Module
7 Transaxle Solenoids
8 Spare
9 ABS Solenoid Valves
10 Oxygen
Sensors
- Emissions Control
11 Injectors
12 Spare
13 Engine Controls
14 Daytime Running Lamps (DRL)
15 Passenger's Low
-Beam Headlamp
16 Spare
17 Driver's Low
-Beam Headlamp
18 Driver's High
-Beam Headlamp
19 Ignition Switch Battery Power
20 Parking Lamps
- Front and Rear
21 Air Pump
- Emissions Controls
22 Spare
23 Passenger's High
-Beam HeadlampMini Fuses Usage
24 Spare
25 Spare
26 Front Fog Lamps
27 Ignition Relay, Neutral
Start Switch, Powertrain
Control Module (PCM)
28 Battery Control
Module
- Battery Power
29 Spare
30 All
-Wheel Drive (AWD) Module
31 Cruise Control
32 Front Power
Outlets/Lights, OnStar


33 Automatic Transaxle Shift Lock
Control System
34 Spare
J
-Style Fuse Usage
35 Starter Solenoid Battery Fuse
36 ABS Motor
37 Spare

6-69
J-Style Fuse Usage
38 Spare
39 Engine Cooling Fan
40 Engine Cooling Fan
41 Main Battery Fuse for Retained
Accessory Power Relay and
Accessory Relay
42 Main Battery Fuse for Heated
Seats, Air
43 Spare
44 Spare
45 Main Battery Fuse for Power
Outlets, Level Control,
Power Seats and Mirrors and
Body computer
46 Spare
47 Main Battery Fuse for HVAC
Blower and Ignition 3 relay
48 Main Battery fuse for Ignition
Switch, Radio, Heads
-Up Display,
Remote Keyless Entry (RKE),
Instrument Cluster, Air
Conditioning and Body ComputerMaxi Breaker Usage
49 Spare
Micro Relay Usage
50 Horn
51 Fuel Pump
52 Air Conditioning Clutch
53 Daytime Running Lamps (DRL)
54 Low
-Beam Headlamps
55 Parking Lamps
56 High
-Beam Headlamps
57 Fog Lamps
Mini Relay Usage
58 Starter Relay
59 Cooling Fan
60 Ignition 1 Relay
61 Cooling Fan
62 Cooling Fan
63 Air Pump

7-19
Automatic Transaxle Shift Lock Control
System Check
CAUTION:
When you are doing this check, the vehicle could
move suddenly. If it does, you or others could be
injured. Follow the steps below.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked
on a level surface.
2. Firmly apply the parking brake. See ªParking Brakeº
in the Index if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.3. With the engine off, turn the key to the ON position,
but don't start the engine. Without applying the
regular brake, try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK (P), your vehicle needs service.
Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to OFF in each shift lever position.

The key should turn to OFF only when the shift lever
is in PARK (P).

The key should come out only in OFF.