ignition BUICK REGAL 1999 Repair Manual

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6-44
Windshield Wiper
Blade Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See ªWiper Blade
Checkº in Section 7 of this manual under Part B ªOwner
Checks and Servicesº for more information.
1. Turn on the wipers to the low
-wipe setting.
2. Turn off the ignition while the wipers are at the outer
positions of the wiper pattern. The blades are more
accessible for removal/replacement while in
this position.
3. Pull the windshield wiper arm 3 to 4 inches
(7.5 to 10 cm) away from the windshield.
4. While holding the wiper arm away from the glass,
push the release clip from under the windshield
wiper arm connecting point and slide the blade
assembly down toward the glass to remove it from
the wiper arm.
5. Slide the new wiper blade securely on the wiper arm
until you hear the release clip ªclickº into place.
For wiper blade replacement length and type, see
ªNormal Maintenance Replacement Partsº in the Index.
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6-47 Low Tire Inflation Monitor System
(If Equipped)
The low tire inflation monitor system can alert you to a
large change in the pressure of one tire. The system
ªlearnsº the pressure at each tire throughout the
operating speed range of your vehicle. The system
normally takes between 45 and 90 minutes of driving to
learn the tire pressures. This time may be longer
depending on your individual driving habits. Learning
need not be accumulated during a single trip. Once
learned, the system will remember the tire pressures
until the system is recalibrated.
After the system has learned tire pressures with properly
inflated tires, the LOW TIRE light will come on if the
pressure in one tire becomes 12 psi (83 kPa) lower than
the other three tires. The low tire inflation monitor
system won't alert you if the pressure in more than one
tire is low, if the system is not properly calibrated, or if
the vehicle is moving faster than 60 mph (95 km/h).
The low tire inflation monitor system detects differences
in tire rotation speeds that are caused by changes in
tire pressure. The system can alert you about a low
tire
-- but it doesn't replace normal tire maintenance.
See ªTiresº in the Index.When the LOW TIRE light comes on, you should stop
as soon as you can and check all your tires for damage.
(If a tire is flat, see ªIf a Tire Goes Flatº in the Index.)
Also check the tire pressure in all four tires as soon as
you can. See ªInflation
- Tire Pressureº in the Index.
The light will come on and stay on until you turn off the
ignition or press the RESET button.
Don't reset the low tire inflation monitor 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
system will not work properly and may not alert you
when a tire is low.
Any time you adjust a tire's pressure, rotate your tires,
or have one or more tires repaired or replaced, you'll
need to reset (calibrate) the low tire inflation monitor
system. You'll also need to reset the system whenever
you buy new tires and whenever the vehicle's battery
has been disconnected.
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6-48
To reset (calibrate) the system: turn the ignition switch
to RUN. Then press and hold the RESET button for
about five seconds.
The red RESET button is
located inside your
instrument panel fuse block.
The fuse block is located under the cover labeled
FUSES, which is at the end of the instrument panel on
the passenger's side of the vehicle. The RESET button is
the first button in the top row of the fuse block. The
LOW TIRE light will come on and flash three times.
Then it will go off. If the light doesn't go off, see your
dealer for service.
The system completes the calibration process
during driving.The system normally takes 15 to 20 minutes of driving
in each of three speed ranges to ªlearnº tire pressures.
The speed ranges are 15 to 40 mph (25 to 65 km/h),
40 to 65 mph (65 to 105 km/h) and above 65 mph
(105 km/h). When learning is complete, the system will
alert you after 2-8 minutes if a tire is 12 psi (83 kPa)
different from the other three tires. Detection thresholds
may be higher and detection times may be longer on
rough roads, curves and at high speeds. The system is
not capable of detection at speeds greater than
60 mph (95 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.
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.
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6-67
Fuse Description
1 Ignition Key Solenoid
4 Ignition Signal
-- Hot in Run and
Start
-- PCM, BCM U/H Relay
5 Remote Radio Premium Sound
6 Power Mirrors
8 Panel Dimming
10 Ignition Signal
-- Hot in Run,
Unlock and Start
-- Cluster,
Powertrain Control Module,
Body Control Module
13 DRL Module
14 Interior Lamps
15 Door Locks
17 Taillamps, License Lamp
18 Radio
19 Heated Mirror
20 Cruise Control
22 ClustersFuse Description
23 Cigarette Lighter
-- Auxiliary
Power Connection (Power Drop),
Data Link
24 Stoplamps
26 Parking Lamps
27 Auxiliary Power Connection
(Power Drop)
-- Hot in ACC
and Run
28 Crank Signal
-- Body Control
Module, Cluster, Powertrain
Control Modules
29 Ignition Signal
-- HVAC
Control Head
30 Shifter Lock Solenoid
31 Air Bag
32 Body Control Module
33 Hazard Flashers
34 Driver's Heated Seat
36 Ignition Signal
-- Hot in ACC and
Run
-- Body Control Module
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6-69
Fuse Description
3 Power Seats, Rear Defog,
Heated Seats
4 High Blower, Hazard Flasher,
Stoplamps, Power Mirror,
Door Locks
5 Ignition Switch, BTSI, Stoplamps,
ABS, Turn Signals, Cluster, Air
Bag, DRL Module
6 Cooling Fan
7 Interior Lamps, Retained
Accessory Power, Keyless Entry,
CEL TEL, Data Link, HVAC
Head, Cluster, Radio, AUX Power
(Power Drop), Cigarette Lighter
8 Ignition Switch, Wipers, Radio,
Steering Wheel Controls, Body
Control Module, AUX Power
(Power Drop), Power Windows,
Sunroof, HVAC Controls, DRL,
Rear Defog Relay
9 Cooling Fan 2
10 Cooling Fan 3Relay Description
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Not Used
15 A/C Clutch
16 Horn
17 Fog Lamps
18 Fuel Pump, Speed Control
(L67 only)
19 Fuel Pump
20 Not Used
21 Generator
22 ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
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7-18
Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.

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

The key should come out only in LOCK.
Parking Brake and Automatic Transaxle PARK (P)
Mechanism Check
CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.

To check the parking brake's holding ability: With
the engine running and transaxle in NEUTRAL (N),
slowly remove foot pressure from the regular brake
pedal. Do this until the vehicle is held by the parking
brake only.

To check the PARK (P) mechanism's holding ability:
With the engine running, shift to PARK (P). Then
release all brakes.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
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9-5
First Gear, Automatic Transaxle 2-26 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Parking and Turn Signal Lamp
Bulb Replacement 6
-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canadian 6-4, 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Full-Range Traction Control System 4-9 . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-66 . . . . . . . . . . . . . . . . . . . . . . .
Gages
Engine Coolant Temperature 2-66 . . . . . . . . . . . . . . . . . . . .
Fuel 2-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transaxle 2-22 . . . . . . . . . . . . . . . .
Glove Box 2-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GM Mobility Program for Persons with Disabilities 8-5 . . . . .
Gross Axle Weight Rating (GAWR) 4-32 . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating (GVWR) 4-32 . . . . . . . . . . . . . .
Guide en Fran†ais ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GVWR 4
-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Restraints 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamps
Aiming 6
-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bulb Replacement 6
-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-to-Pass 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam Changer 2-37 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . .
Heated Seats 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating 3-4, 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Beam Headlamps 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-25 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood
Checking Things Under 6
-8 . . . . . . . . . . . . . . . . . . . . . . . . .
Release 6-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Positions 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Lock Check 7-18 . . . . . . . . . . . . . . . . . . . .
Illuminated Entry 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspections
Brake System 7
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 7-19 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Boot 7-19 . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Seal 7-19 . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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9-6
Instrument Panel 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-57, 2-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel Brightness Control 2-45 . . . . . . . . . . . . . . . .
Interior Lamps 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-16 . . . . . . . . . . . . . . . . . . . . .
Key Reminder Warning 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-64 . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information 4-31 . . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-64 . . . . . . . . . . . . . . . . . . .
Lamps
Cornering 2
-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reading, Rearview Mirror 2-47 . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-29 . . . . . . .
Lighter 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lights
Air Bag Readiness 1
-22, 2-61 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-63, 4-7 . . . . . . . . . . . .
Brake System Warning 2-62 . . . . . . . . . . . . . . . . . . . . . . . . .
Change Oil Soon 2-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door/Trunk Ajar Warning 2-74 . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature Light 2-65 . . . . . . . . . . . . . . .
Interior 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Warning 2-66, 6-27 . . . . . . . . . . . . . . . . . . . .
Low Fuel 2-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Oil Level 2-71, 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Tire 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Traction 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Washer Fluid Warning 2-39, 2-73 . . . . . . . . . . . . . . . .
Oil Warning 2-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Shift 2-26, 2-73 . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-6, 2-60 . . . . . . . . . . . . . . . . . . . . . .
Security 2-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Vehicle Soon 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction Control System Active 2-64 . . . . . . . . . . . . . . . . . .
Traction Control System Warning 2-63 . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-31 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks
Cylinders 7
-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delayed Locking 2-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Check 7-18 . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-16 . . . . . . . . . . . . . . . . . . . . .
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