1998 GMC SIERRA wiper blades

For steady wiping at low speed, turn the knob to the LOW
position. For high-speed wiping, turn the knob hrther, to
HIGH.
To stop the wipers, move the knob to OW.
Damaged wiper blades may prevent you from seeing
well enough to drive safely.
To avoid damage, be sure to
clear ice and
snow from the wiper blades before using
them.
If they are frozen to the windshield, carefully
loosen
or thaw them. If your blades do become
damaged, get new blades or blade inserts.
Heavy ice or snow can overload your wipers. The
windshield wiper motor
is protected from overload by a
circuit breaker and a fuse. If the motor overheats due
to
heavy snow, etc., the wiper will stop until the motor
cools. Although protected from electrical overload,
overload due
to heavy snow, etc. may cause wiper
linkage damage. Always clear ice and heavy snow from
the windshield before using your windshield wipers.
Windshield Washer
At the top of the lever,
%:.. there’s a paddle with the 4 g& .,.~ ...... ...... ... .. . . word PUSH on it. To spray
washer fluid
on the
windshield, push the paddle.
A CAU 1ION:
In freezing weather, don’t use your washer until
the windshield is warmed. Otherwise the washer
fluid can form ice on the windshield, blocking
your vision.
2-37
ProCarManuals.com

Rain and wet roads can mean driving trouble. On a wet
road,
you can’t stop, accelerate or turn as well because
your tire-to-road traction
isn’t as good as on dry roads.
And, if your tires don’t have much tread left, you’ll get
even less traction. It’s always wise to go slower and be
cautious if rain starts to fall while
you are driving. The
surface may get wet suddenly when your reflexes are
tuned for driving on dry pavement.
The heavier the rain, the harder
it is to see. Even if your
windshield wiper blades are in good shape, a heavy rain
can make it harder to see road signs and traffic signals,
pavement markings, the edge of the road and even
people walking.
It’s wise
to keep your wiping equipment in good shape
and keep your windshield washer tank filled with
washer fluid. Replace your windshield wiper inserts
when
they show signs of streaking or missing areas on
the windshield, or when strips of rubber start to separate
from the inserts. Driving too fast
through large water puddles or even
going through some car washes can cause problems, too.
The water may affect your brakes. Try to avoid puddles.
But if you can’t, try to slow down before you hit them.
4-29
ProCarManuals.com

The exit speed is usually posted.
Reduce your speed according
to your speedometer, not
to your sense of motion. After driving for any distance
at higher speeds,
you may tend to think you are going
slower than you actually are.
Before Leaving on a Long Trip
Make sure you’re ready. Try to oe wed rested. If you
must start when you’re not fresh
-- such as after a day’s
work
-- don’t plan to make too many miles that first part
of the journey. Wear comfortable clothing and shoes you
can easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it’s ready to
go. If it needs
service, have
it done before starting out. Of course,
you’ll find experienced and able service experts in
GM
dealerships all across North America. They’ll be ready
and willing
to help if you need it.
Here are some things you can check before a trip:
0 Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades: Are they in good shape?
0
0
0
0
0
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lamps: Are they all working? Are the lenses clean?
Tires: They are vitally important to a safe,
trouble-free trip.
Is the tread good enough for
long-distance driving? Are the tires all inflated to the
recommended pressure?
Weather Forecasts: What’s the weather outlook
along your route? Should you delay your trip
a short
time
to avoid a major storm system?
Maps: Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as “highway hypnosis”?
Or is
it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There
is something about an easy stretch of road with the
same scenery, along with the hum of the tires on the road,
the drone of
the engine, and the rush of the wind against
the vehicle that can make you sleepy. Don’t let it happen to you! If it does, your vehicle can leave
the road in less
than n second, and you could crash and be injured.
4-33
ProCarManuals.com

Cleaning Glass Surfaces
Glass should be cleaned often. GM Glass Cleaner (GM
Part
No. 1050427) or a liquid household glass cleaner
will remove normal tobacco smoke and dust films on
interior glass.
Don’t use abrasive cleaners
on glass, because they may
cause scratches. Avoid placing decals
on the inside rear
window, since they may have to be scraped off 1ate.r.
If
abrasive cleaners are used on the inside of the rear
window, an electric defogger element may be damaged.
Any temporary license should
not be attached across the
defogger grid.
Cleaning the Outside of the
Windshield and Wiper Blades
If the windshield is not clear after using the windshield
washer. or
if the wiper blade chatters when running,
wax, sap
or other material may be on the blade
or windshield.
Clean the outside of the windshield with GM
Windshield Cleaner, Bon Ami@ Powder (non-scratching
windshield is clean
if beads do not form when you rinse
it with water.
= olass cleaning powder), GM Part No. 10500 I 1. The Grime from
the windshield will stick to the wiper blades
and affect their performance. Clean the blade by wiping
vigorously with
a cloth soaked in full-strength
windshield washer solvent. Then rinse the blade
with water.
Check the wiper blades
and clean them as necessary;
replace blades that
look worn.
Weatherstrips
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth at least every six
months. During very cold, damp weather more frequent
application may be required. (See “Recommended
Fluids and Lubricants”
in the Index.)
Cleaning the Outside of Your Vehicle
The paint finish on your vehicle provides beauty, depth
of color, gloss retention and durability.
Washing Your Vehicle
The best way to preserve your vehicle’s finish is to keep it
clean by washing it often with lukewarm or cold water.
6-65
ProCarManuals.com

Normal Maintenance Replacement Parts
Replacement part numbers listed in this section are based on the latest information available at the time of printing,
and are subject to change. If a part listed
in this manual is not the same as the part used in your vehicle when it was
built, or
if you have any questions, please contact your GM truck dealer.
These specifications are for information only.
If you have any questions, see the service manual for the chassis or
refer
to the body manufacturer's publications.
VIN Code
Oil Filter';"
Air Cleaner Filter*
PCV Valve*
Spark Plugs*
Fuel Filter*
Wiper Blades**
Wiper Blade Type
Wiper Blade Length
w M
PF52 PF12 18.1
A 1300C??
A 1300C??
CV746C CV796C
4 1-932 4 1-932
GF626 GF626
22154886 22 154886
Trico Trico
18 inches (45.0 cm) 18 inches
(45.0 cm)
"AC part number
**GM part number
?Use
a PF52 oil filter if your vehicle has four-wheel drive.
??A1301C high-capacity air cleaner filter.
R J
PF1218? PF1218
A 1300C?? A 1300C??
CV796C cv774c
4 1-932 4 1-932
GF626 GF626
22 154886 22154886
Trico Trico
18 inches (45.0 cm) I8
inches (45.0 cm)
6-78
ProCarManuals.com

At Least Twice a Year Manual Transmission Check
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. Look
for any other loose or damaged
safety belt system parts.
If you see anything that might
keep a safety belt system from doing its
job, ha\:e it
repaired. Have any torn or frayed safety belts replaced.
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 "Wiper Blactes,
Cleaning"
in the Index.
Air Cleaner Filter Restriction Indicator Check
Your vehicle has an indicator on the engine that lets you
know when the air cleaner filter
is dirty and needs to be
changed. Check indicator at least twice
a year or when
your
oil is changed. See "Air Cleaner" in the Index for
more information. Inspect your air cleaner filter
restriction indicator more often
if the vehicle is used in
dusty areas or under off road conditions. Check the transmission fluid
level; add
if needed. See
"Manual Transmission"
in the Index. Check for leaks.
A fluid loss may indicate a problem. Have the system
inspected and repaired
if needed.
Automatic Transmission Check
Check the transmission fluid level: add if needed. See
"Automatic Transmission"
in the Index. A fluid loss may
indicate a problem. Check the system and repair
if needed.
Hydraulic Clutch System Check
Check the fluid level in the clutch reservoir. See
"Hydraulic Clutch Fluid"
in the Index. A fluid loss in
this system could indicate a problem. Have the system
inspected and repaired at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified
in Part D.
7-41
ProCarManuals.com

Vinyl ....................................... 6-63
Wheels
..................................... 6-67
Windshield and Wiper Blades
................... 6-65
Clock. Setting the ................................ 3-7
Clutch Fluid. Hydraulic
..................... 6-25. 7-46
Clutch. System Check
........................... 7-41
Comfort Controls
................................ 3-2
Comfort Guides. Rear
........................... 1-40
Compact Disc Care
............................. 3-26
Compact Disc Player
.......................
3-16 . 3-20
Compact Disc Player Care
........................ 3-26
Compass. Rearview Mirror
with ................... 2-46
Console Storage
................................ 2-54
Control
of a Vehicle .............................. 4-5
Convex Outside Mirror .......................... 2-SO
Coolant ............................. 6-28.6-79.7-46
Heater
. Engine ............................... 2- 14
Recovery Tank ............................... 5- I5
Cooling System ................................ 5- IS
Courtesy Transportation ........................... 8-8
Cruise Control
................................. 2-38
Cupholders
.......................... 2.54.2.55. 2-56
Customer Assistance Information ................... 8- I
Customer Satisfaction Procedure .................... 8-2
Climate Control System ....................... 3.2 . 3-3
Customer Assistance for Text Telephone Users
......... 8-4
Damage. Finish
............................... 6-68
Darnage. Sheet Metal
............................ 6-67
Daytime Running Lamps
......................... 2-42
Daytime Running Lamps Indicator Lighl
............ 2-74
Dead Battery
................................... 5-3
Defects. Reporting Safety ........................ 8- 10
Defensive Driving ............................... 4-2
Defogger. Rear Window .......................... 3-6
Defoggng
and Defrosting ......................... 3-6
Dolby B Noise Reduction
....................... 3-15
Dome Lamps
.................................. 2-44
DO0
I.
Locks ....................................... 2-5
Storage Pocket ............................... 2-51
Third
........................................ 2-4
Downshifting
.................................. 2-20
Driver Position ................................. 1-14
Driving City
........................................ 4-31
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-32
In a Blizzard ................................. 4-38
In the Rain .................................. 4-28
Night
...................................... 4-27
Off-Road
................................... 4-14
On Curves
................................... 4-9
On Grades While Towing a Trailer ............... 4-58
On Hill and Mountain Roads .................... 4-34
On Snow and Ice
............................. 4-37
Through Water
............................... 4-30
Wet Roads
.................................. 4-28
Winte
l- ...................................... 4-36
With
a Trailer ................................ 4-56
Drunken Driving
................................ 4-3
Dual Tire Operation
............................. 6-56
9-3
ProCarManuals.com

Windshield Washet- Fluid
..........
Fluid Level Check
Windshield WiDers
.
............................. 2-37 Winter Drivins ................................. 4-36
................... 2-37.6-33. 7-47 Wiper Blades. Cleaning .......................... 6-65
............................ 7-40 Wiring Headlamp .............................. 6-71
............................. 2-36 Wrench, Wheel ................................. 5-25 L Blade
Replacement ...................... 6-50.6-78
Cleaning
the Blades ........................... 6-65
Fuses ...................................... 6-71
9-12
ProCarManuals.com