1998 CHEVROLET EXPRESS brake light

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
Wet brakes can cause accidents. They won’t work
as well in a quick stop and may cause pulling to
one side. You could lose control
of the vehicle.
After driving through
a large puddle of water or
a car wash, apply your brake pedal lightly until
your brakes work normally.
Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen if the road is wet enough and you’re
going fast enough. When your vehicle is hydroplaning,
it has little or
no contact with the road.
Hydroplaning doesn’t happen often. But
it can if your
tires do not have much tread or if the pressure in
one or
more is low. It can happen if a lot
of water is standing on
the road. If you can see reflections from trees, telephone
poles or other vehicles, and raindrops “dimple” the
water’s surface, there could be hydroplaning. Hydroplaning
usually happens at higher speeds. There
just isn’t a hard and fast rule about hydroplaning. The
best advice is to slow down when
it is raining.
Driving Through Deep Standing Water
NOTICE:
If you drive too quickly through deep puddles or
standing water, water can come
in through your
engine’s air intake and badly damage your
engine. Never drive through water that is slightly
lower than the underbody
of your vehicle. If you
can’t avoid deep puddles or standing water, drive
through them very slowly.
Some Other Rainy Weather Tips
Besides slowing down, allow some extra following
distance. And be especially careful when you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared to have your view restricted
by road spray.
0 Have good tires with proper tread depth. (See
“Tires”
in the Index.)
4-17

Downloaded from www.Manualslib.com manuals search engine Trailer Wiring Harness
The light-duty trailer wiring harness is a six-wire
harness assembly. The optional heavy-duty trailer
wiring package is an eight-wire harness assembly. The
harness is stored under the vehicle, along the driver’s
side rear corner of the frame rail. The heavy-duty trailer
wiring harness has a 30-amp feed wire. Both harnesses
come without connectors and should be wired by a
qualified electrical technician. The technician can use
the following color code chart when connecting the
wiring harness to your trailer.
Dark Blue: Use for electric trailer brakes (eight-wire
harness only)
Orange: Trailer accessory (eight-wire harness only)
0 Light Green: Back-up lamps
0 Brown: Parking lamps
Yellow: Left stoplamp and turn signal
0 Dark Green: Right stoplamp and turn signal
0 White (heavy gage): Ground wire
White (light gage): Center high-mounted stoplamp
Securely attach the harness to the trailer, then tape or
strap
it to your vehicle’s frame rail. Be sure you leave it
loose enough
so the wiring doesn’t bend or break, but
not
so loose that it drags on the ground. Store the
harness in its original place. Wrap the harness together
and tie it neatly
so it won’t be damaged.

Downloaded from www.Manualslib.com manuals search engine Brake Wear
Your vehicle has front disc brakes and rear drum brakes.
Disc brake pads have built-in wear indicators that
make
a high-pitched warning sound when the brake
pads are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you
are pushing on the brake
pedal firmly).
r
I
The brake wear warning sound means that soon
your brakes won’t work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
I NOTICE:
Continuing to drive with worn-out brake pads
could result in costly brake repair.
Some driving conditions or climates may cause a
brake squeal when the brakes are first applied or
lightly applied. This does not mean something is
wrong with your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires
are rotated, inspect
brake pads for wear and evenly torque wheel nuts in
the proper sequence
to GM specifications.
Your rear drum brakes don’t have wear indicators, but
if you ever hear a rear brake rubbing noise, have the
rear brake linings inspected immediately. Also, the rear
brake drums should be removed and inspected each time
the tires are removed for rotation or changing. When
you have the front brake pads replaced, have the rear
brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See “Brake System Inspection’’ in Section
7 of this
manual under Part
C “Periodic Maintenance Inspections.’’
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there
is a rapid increase in pedal
travel.
This could be a sign of brake trouble.

Downloaded from www.Manualslib.com manuals search engine Engine Compartment Fuse Relay Center
The fuse block is on the driver’s side of the engine
compartment at the rear.
U
NAME
IGN-B
IGN-A
BATT
LIGHTING
RR BLOWER
ENG-I
NAME
BLOWER ABS
CIRCUITS PROTECTED
Front Blower Motor
Electronic Brake Control Module AIC
SPARE
AUX A
AUX B
RH-HDLP
CIRCUITS PROTECTED
Ignition
Switch
Starter Relay, Ignition Switch
Instrument Panel
Fuse Block
Instrument Panel Fuse Block,
Headlamp Switch
Rear Auxiliary Blower Motor Relays
Heated
02 Sensors, Mass Air Flow
Sensor, EGR Valve Solenoid, Evap
Canister Purge Valve, Crankshaft
Position Sensor, Secondary Air Injection Relay (Diesel), Water in
Fuel Sensor (Diesel), Fuel Heater
(Diesel), Glowplug Relay (Diesel),
Wastegate Solenoid (Diesel)
Air Conditioning Clutch Relay
Spare Fuses
Upfitter Provisions Upfitter Provisions
Right-hand Headlamp (Export only)

Downloaded from www.Manualslib.com manuals search engine Section 9 Index
Air Bag .......................
Adding Equipment .............
How Does it Restrain ...........
How it Works .................
Location .....................
Readiness Light ...............
Servicing ....................
What Makes it Inflate ...........
What Will You See After it Inflates
When Should it Inflate
..........
Aircleaner .....................
Air Conditioning ................
Air Conditioning Refrigerants ......
Alignment and Balance. Tire .......
Aluminum Wheels. Cleaning .......
Antenna. Power .................
Antifreeze ......................
Anti-Lock Brake System Warning Light
.....
Brakes ......................
Appearance Care ................
Appearance Care Materials ........
Arbitration Program ..............
Ashtrays .......................
Audio Systems ..................
............... 1-26
............... 1-33
............... 1-31
............... 1-29
............... 1-29
.......... 1.28. 2.54
............... 1-32
............... 1-30
............... 1-31
............... 1-30
............... 6-16
................ 3-6
............... 6-70
............... 6-48
............... 6-56
............... 3-27
............... 6-21
........... 2.57. 4.7
................ 4-7
............... 6-51
............... 6-59
................ 8-9
............... 2-48
................ 3-7 Automatic
Transmission Check
........................... 7-39
Transmission Fluid
............................ 6-17
Transmission Operation
........................ 2-21
Shifting
..................................... 2-21
Transmission Park Mechanism Check
............. 7-41
LockingRear
................................ 2-30
Rear
....................................... 6-21
Axle
Battery
...................................... 6-31
Jump Starting
................................. 5-3
Replacement. Remote Keyless Entry
............... 2-8
Warnings .................................... 5-3
BBB Auto Line
................................. 8-9
Before Leaving on a Long Trip
.................... 4-20
Better Business Bureau Mediation
................... 8-9
Blizzard ...................................... 4-25
Brake Adjustment
.................................. 6-31
Fluid
....................................... 6-27
Master Cylinder
.............................. 6-27
Parking
..................................... 2-24
PedalTravel
................................. 6-30
Replacing System Parts
........................ 6-31
9-1

Downloaded from www.Manualslib.com manuals search engine Brakes (Continued)
System
Waming Light ......................... 2-56
Trailer ...................................... 4-33
Transrniission Shift Interlock Check
............... 7-40
Brakes.,
Anti-Lock ............................... 4-7
Braking in Emergencies ........................... 4-8
Break-In, New Vehicle .......................... 2-17
Brightness Control .............................. 2-40
BTSI Check ................................... 7-40
Bulb Rqlacement .............................. 6-32
Wear ....................................... 6-30
Braking ........................................ 4-6
9-2

Downloaded from www.Manualslib.com manuals search engine Leaving Your Vehicle with the Engine Running ....... 2-27
Lighter
........................................ 2-48
Lights Air Bag Readiness
....................... 1-28, 2-54
Anti-Lock Brake System Warning
............ 2-57, 4-7
Brake System Warning
......................... 2-56
Charging System
............................. 2-54
Daytime Running Lamps Indicator
............... 2-62
Safety Belt Reminder
..................... 1- 12, 2-53
Security
.................................... 2-61
Service Engine Soon
.......................... 2-58
Loading Your Vehicle
........................... 4-27
Ignition Transmission Check
.................... 7-41
Sliding Door Child Security ...................... 2-6
Lubricants and Fluids
............................ 7-44
Lubrication Service, Body
........................ 7-39
CheckGages
................................ 2-62
Exterior
.................................... 2-40
Interior
..................................... 2-43
Locks
......................................... 2-4
Door
........................................ 2-4
PowerDoor
.................................. 2-5
RearDoorSecu
rity ............................. 2-5
LossofControl
................................ 4-12
Maintenance. Normal Replacement parts
........... 6-69
Maintenance Record
............................ 7-46
Maintenance Schedule
............................ 7-1
Long Tripmighway
........................... 7-27
Long Tripmighway Definition
................... 7-6
Long Tripmighway Intervals
..................... 7-7
Owner Checks and Services ..................... 7-38
Periodic Maintenance Inspections
................ 7-42
Recommended Fluids and Lubricants
............. 7-44
Scheduled Maintenance Services
.................. 7-4
Short Trip/City
................................ 7-8
Short Trip/City Definition ....................... 7-5
Short Trip/City Intervals
........................ 7-5
Maintenance. Underbody
......................... 6-58
Maintenance When Trailer Towing
................. 4-36
Malfunction Indicator Lamp
...................... 2-58
Camper-Type
................................ 2-47
Convex Outside
.............................. 2-46
Inside Daymight Rearview
..................... 2-45
Power Remote Control
......................... 2-45
Model Reference
................................. vi
MountainRoads
................................ 4-21
Multifunction Lever
............................. 2-34
ManualFrontSeat
........,...................... l-2
Mirrors ....................................... 2-45
Visorvanity
................................. 2-49
MMT ......................................... 6-4
Neutral. Automatic Transmission ................. 2-22
New Vehicle Break-In
........................... 2-17
Nightvision
................................... 4-14
Noise Control System
........................... 6-11
Normal Maintenance Replacement
Parts ............. 6-69
Odometer
.................................... 2-52
Odometer. Trip
................................. 2-52
9-6

Downloaded from www.Manualslib.com manuals search engine TorqueLock ................................... 2-27
Torque. Wheel Nut
......................... 5.33. 6.67
Towing a Trailer
................................ 4-28
Towing Your Vehicle
............................. 5-8
Trailer
Brakes
..................................... 4-33
Driving on Grades
............................ 4-35
Drivingwith
................................. 4-33
Hitches
..................................... 4-32
Maintenance When Towing
..................... 4-36
Parking on Hills
.............................. 4-36
Safety Chains
................................ 4-33
Tongueweight
............................... 4-31
Total Weight on Tires
.......................... 4-32
Towing
..................................... 4-28
Turnsignals
................................. 4-35
Weight
..................................... 4-30
Wiring Harness
............................... 4-37
Transmission Fluid. Automatic
.................... 6- 17
Transmitters. Keyless Entry
........................ 2-6
Transportation. Courtesy
.......................... 8-8
Trip Odometer ................................. 2-52
TTYUsers
..................................... 8-4
Turn Signal and Lane Change Signals
............... 2-35
Turn SignalNultifunction Lever
................... 2-34
Turn Signals When Towing a Trailer
................ 4-35
Underbody Maintenance
........................ 6-58
UnderhoodLamp
............................... 2-44 Vehicle
Control
...................................... 4-5
Damage Warnings
.............................. iv
Identification Number ......................... 6-60
Loading
.................................... 4-27
Storage
..................................... 6-31
Ventilation System
............................... 3-6
Visor Vanity Mirrors
............................ 2-49
Visors. Sun
.................................... 2-49
warning Devices
............................... 5-2
Warning Lights. Gages and Indicators
............... 2-53
Washer Fluid. Windshield
........................ 6-26
Weatherstrips
.................................. 6-54
Wheel Alignment
.................................. 6-48
Nut Torque ............................. 5-33. 6.67
Replacement
................................. 6-49
Wrench
..................................... 5-24
Windows
..................................... 2-31
Power
...................................... 2-31
SideLatches
................................. 2-32
Swing-Out
.................................. 2-32
Windshield Washer
............................. 2-37
Fluid
....................................... 6-26
Fluid Level Check
............................ 7-38
Washing Your Vehicle
........................... 6-55