1998 TOYOTA SIENNA brake fluid

name. SIENNA (U)
6
Indicator symbols on the instrument panel
Brake system warning light∗
1
Seat belt reminder light∗
1
Malfunction indicator lamp∗
1
Low fuel level warning light∗
1
(type A)
Low oil level warning light∗
1
(type B)
Discharge warning light
∗
1
(type A)
(type B)
(type A)
(type B)Anti−lock brake system warning light∗
1
Open door warning light∗
1
SRS airbag warning light∗
1
Low windshield washer fluid level warning light∗
1
Low tire pressure warning light∗
1
Open power sliding door warning light∗
1
ProCarManuals.com

name. SIENNA (U)
106
(a)
(b)
If the indicator
or buzzer
comes on...
(c)
(d)
If parking brake
is off, stop and
check.
Fasten seat belts.
Stop and check.
Take vehicle to
Toyota dealer. Do this.
(type
A)
(type
B)
(Indicator and buzzer)
(type
A)
(type
B
)
(f)
(g)
If the indicator
or buzzer
comes on...
(h) (e)
Low fuel level
warning lightDo this.
Fill up tank.
(type
A)
(type
B)
Stop and check.
Take vehicle to
Toyota dealer.
(type
A)
(type
B)
Close all doors.Add washer fluid.
Adjust tire
pressure.If the indicator
or buzzer
comes on...
Remove key. Take vehicle to
To y o t a d e a l e r
immediately.
(m
) (l)
Key reminder
buzzer (k) (j)Do this.
Close the right
side sliding door. (i)
(Indicator and buzzer)
Service reminder indicators
an d warn in g bu zzers
ProCarManuals.com

name. SIENNA (U)
107
(a) Brake System Warning Light
This light has the following functions:
Parking brake reminder
If this light is on, make sure the parking
brake is fully released. The light should
go off.
Low brake fluid level warning
If this light comes on and stays on while
you are driving, slow down and pull off
the road. Then stop the vehicle carefully.
Remember that stopping distance and ped-
al effort may be increased. There maybe
a problem somewhere in the brake sys-
tem. Check the fluid level of the see−
through reservoir.
To make sure the parking brake has not
caused the warning light to come on,
check to see that the parking brake is
fully released.
If the brake fluid level is low...
At a safe place, test your brakes by start-
ing and stopping.
If you judge that the brakes still work
adequately, drive cautiously to your
nearest dealer or shop for repairs.
If the brakes are not working, have the
vehicle towed in for repairs. (For tow-
ing information, see Part 4.)
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
If the brake fluid level is correct...
Have the warning system checked by your
Toyota dealer.
(b) Seat Belt Reminder Light and Buzz-
er
The light and buzzer remind you to buckle
up the driver ’s seat belt.
Once the ignition key is turned to ”ON” or
”START”, the reminder light and buzzer
come on if the driver’s seat belt is not
pulled out. Unless the driver starts to pull
the shoulder belt out of the retractor, the
light stays on and the buzzer stops after
about 4 to 8 seconds.
(c) Discharge Warning Light
This light warns that the battery is being
discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging
system.The engine ignition will continue to oper-
ate, however, until the battery is dis-
charged. Turn off the air conditioning,
blower, radio, etc., and drive directly to
the nearest Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine
drive belt is broken or loose.
(d) Malfunction Indicator Lamp
This lamp comes on in the following
cases.
a. The fuel tank is completely empty. (See
”Fuel gauge” in Chapter 1−5 for instruc-
tions.)
b. The fuel tank cap is not tightened se-
curely. (See ”Fuel tank cap” in Chapter
1−2 for instructions.)
c. There is a problem somewhere in your
engine or automatic transmission electrical
system.
If it comes on while you are driving in
case c, have your vehicle checked/re-
paired by your Toyota dealer as soon as
possible.
ProCarManuals.com

name. SIENNA (U)
109
(j) SRS Airbag Warning Light
This light will come on when the igni-
tion key is turned to the “ACC” or
“ON” position. After about 6 seconds,
the light will go off. This means the
system of the airbag and front seat belt
pretensioners are operating properly.
The warning light system monitors the air-
bag sensor assembly, seat belt pretension-
er assembly, inflators, warning light, inter-
connecting wiring and power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.
The light does not come on when the
ignition key is turned to the ”ACC” or
”ON” position or remains on.
The light comes on or flashes while
driving.
(k) Low Windshield Washer Fluid Level
Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see ”Adding washer fluid” in Chapter 7−3.)(l) Low Tire Pressure Warning Light
This light warns that the tire pressure of any
one of the tires is critically reduced. The light
comes on when the ignition key is turned to
the ”ON” position. It goes off after a few
seconds. This indicates that the low tire pres-
sure warning system is functioning properly.
If the light comes on while driving, adjust tire
pressure to the specified level. (See ”Tires”
in Part 8.) After the tire pressure is adjusted,
the light should go off after driving at about
more than 30 km/h (19 mph) for some time.
If the light still remains, have the low tire
pressure warning system checked at your
Toyota dealer.
(m) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver’s door with
the ignition key in the ”ACC” or ”LOCK”
position.CHECKING SERVICE REMINDER INDICA-
TORS (except the low fuel level warning
light and low windshield washer fluid
level warning light)
1. Apply the parking brake.
2. Open one of the doors.
The open door warning light should
come on.
3. Close the door.
The open door warning light should go
off.
4. Turn the ignition key to ”ACC”.
The SRS airbag warning light should
come on. It goes off after about 6 se-
conds.
5. Turn the ignition key to ”ON”, but do
not start the engine.
All the service reminder indicators ex-
cept the open door warning light, open
power sliding door warning light and
SRS airbag warning light should come
on. The ”ABS” warning light and low
tire pressure warning light go off after
a few seconds.
ProCarManuals.com

name. SIENNA (U)
182
Use a washer fluid containing an anti-
freeze solution.
This product is available at your Toyota
dealer and most auto parts stores. Follow
the manufacturer ’s directions for how
much to mix with water.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle’s paint.
Do not use your parking brake when
there is a possibility it could freeze.
When parking, put the transmission into
”P” and block the rear wheels. Do not use
the parking brake, or snow or water accu-
mulated in and around the parking brake
mechanism may freeze, making it hard to
release.
Keep ice and snow from accumulating
under the fenders.
Ice and snow built up under your fenders
can make steering difficult. During bad
winter driving, stop and check under the
fenders occasionally.Depending on where you are driving,
we recommend you carry some emer-
gency equipment.
Some of the things you might put in the
vehicle are tire chains, window scraper,
bag of sand or salt, flares, small shovel,
jumper cables, etc.
Trailer towing
Your vehicle is designed primarily as a
passenger-and-load-carrying vehicle. Tow-
ing a trailer will have an adverse effect on
handling, performance, braking, durability
and driving economy (fuel consumption,
etc.). Your safety and satisfaction depend
on the proper use of correct equipment
and cautious driving habits. For your safe-
ty and the safety of others, you must not
overload your vehicle or trailer. Ask your
local Toyota dealer for further details be-
fore towing.
WEIGHT LIMITS
Before towing, make sure the total trail-
er weight, gross combination weight,
gross vehicle weight, gross axle weight
and trailer tongue load are all within
the limits.
The total trailer weight and tongue load
can be measured with platform scales
found at a highway weighing station, build-
ing supply company, trucking company,
junk yard, etc.
ProCarManuals.com

name. SIENNA (U)
193
If your vehicle overheats
If your engine coolant temperature
gauge indicates overheating, if you ex-
perience a loss of power, or if you hear
a loud knocking or pinging noise, the
engine has probably overheated. You
should follow this procedure...
1. Pull safely off the road, stop the ve-
hicle and turn on your emergency
flashers. Put the transmission in ”P”
and apply the parking brake. Turn off
the air conditioning if it is being used.
2. If coolant or steam is boiling out of the
radiator or reservoir,stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from the
radiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
4. If the coolant is leaking, stop the en-
gine immediately. Call a Toyota dealer
for assistance.
5. If there are no obvious leaks, check
the coolant reservoir. If it is dry, add
coolant to the reservoir while the en-
gine is running. Fill it about half full.
CAUTION
Do not attempt to remove the radiator
cap when the engine and radiator are
hot. Serious injury could result from
scalding hot fluid and steam blown
out under pressure.
6. After the engine coolant temperature
has cooled to normal, again check the
coolant level in the reservoir. If neces-
sary, bring it up to half full again. Seri-
ous coolant loss indicates a leak in the
system. You should have it checked as
soon as possible at your Toyota dealer.
ProCarManuals.com

name. SIENNA (U)
215
Tire surface and wheel nuts
Check the tires carefully for cuts, damage
or excessive wear. See Chapter 7−2 for
additional information. When checking the
tires, make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires every 12000 km (7500
miles). See Chapter 7−2 for additional in-
formation.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors including trunk lid
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released.
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise.
Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For folding−down rear seatbacks
and detachable rear seats, check that the
latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied.
Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission ”Park” mecha-
nism
On a safe incline, check that your vehicle
is held securely with the selector lever in
”P” position and all brakes released.
ProCarManuals.com

name. SIENNA (U)
216
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Chapter 7−3 for additional in-
formation.
Engine coolant level
Make sure the coolant level is between
the ”FULL” and ”LOW” lines on the see−
through reservoir when the engine is cold.
See Chapter 7−2 for additional information.
Battery electrolyte level
Make sure the electrolyte level of all bat-
tery cells is between upper and lower lev-
el lines on the case. Add only distilled
water when replenishing. See Chapter 7−3
for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See Chapter 7−2 for additional information.
Engine oil level
Check the level on the dipstick with the
engine turned off and the vehicle parked
on a level spot. See Chapter 7−2 for addi-
tional information.Power steering fluid level
Check the level through the reservoir. The
level should be in the ”HOT” or ”COLD”
range depending on the fluid temperature.
See Chapter 7−2 for additional information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See engine exhaust cautions in
Part 2.)Be on the alert for changes in perfor-
mance, sounds, and visual tip−offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat−looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Engine coolant temperature continually
higher than normal
Does your vehicle need
repairing?
ProCarManuals.com