2012 TOYOTA DYNA 100/150 radiator cap

156IN CASE OF AN EMERGENCY
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 neu-
tral 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 engine access hole cover
or tilting the cab. If there is no coolant
or steam boiling over, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the engine switch off.
CAUTION
To help avoid serious injury, keep the
engine access hole cover closed or
the cab lowered until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Visually check to see if the engine
drive belt (fan belt) is broken or loose.
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 engine drive belt is broken or the
coolant is leaking, stop the engine im-
mediately. Call any authorized Toyota
dealer or repairer, or another duly qual-
ified and equipped professional, for as-
sistance.
5. If the engine drive belt is O.K. and
there are no obvious leaks, you may
help the engine cool down more quickly
by running it at about 1500 rpm for a
few minutes with the accelerator pedal
lightly depressed.
6. Check the coolant reservoir. If it is dry,
add coolant to the reservoir while the
engine is running. Fill it about half full.
For the coolant type, see “Coolant type
selection” on page 199 in Section 7−2.
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.
7. 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.
Serious coolant loss indicates a leak in
the system. You should have it
checked as soon as possible at any
authorized Toyota dealer or repairer, or
another duly qualified and equipped
professional.
Dyna100/150_EE
If your vehicle overheats

188DO−IT−YOURSELF MAINTENANCE: Introduction
Front of vehicle
1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil level dipstick
4. Radiator5. Intercooler
6. Electric cooling fan
7. Condenser
Dyna100/150_EE
Engine compartment overview
"Left−hand drive vehicles

DO−IT−YOURSELF MAINTENANCE: Introduction189
Front of vehicle
1. Engine coolant reservoir
2. Engine oil filler cap
3. Engine oil level dipstick
4. Radiator5. Intercooler
6. Electric cooling fan
7. Condenser
Dyna100/150_EE
"Right−hand drive vehicles

DO−IT−YOURSELF MAINTENANCE: Introduction193
If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this Section.
You should be aware that improper or in-
complete servicing may result in operating
problems.
This Section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
6, there are still a number of items that
must be done by a qualified technician
with special tools.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:
CAUTION
DWhen the engine is running, keep
hands, clothing, and tools away
from the moving fan and engine
drive belts. (Removing rings,
watches, and ties is advisable.)
DRight after driving, the engine
compartment—the engine, radiator,
exhaust manifold and power steer-
ing fluid reservoir, etc.—will be hot.
So be careful not to touch them.
Oil and fluids may also be hot.
DIf the engine is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
DDo not leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
DDo not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
DBe extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
DDo not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
DBe sure that the engine switch is
off if you work near the electric
cooling fans. With the engine
switch on, the electric cooling fans
will automatically start to run if the
engine coolant temperature is high
and/or the air conditioning is on.
DUse eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
DUsed engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
DDo not leave used oil within the
reach of children.
DDispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
DTake care when filling the brake and
clutch fluid reservoirs because
brake fluid can harm your hands or
eyes. If fluid gets on your hands or
in your eyes, flush the affected area
with clean water immediately. If you
still feel uncomfortable with your
hands or eyes, go to the doctor.
Dyna100/150_EE
Do−it−yourself service
precautions

198DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
To ensure excellent lubrication perfor-
mance for your engine, Toyota recom-
mends the use of “Toyota Genuine Motor
Oil”, which has been specifically tested
and approved for all Toyota engines.
Please contact any authorized Toyota
dealer or repairer for further details about
“Toyota Genuine Motor Oil”. Other motor
oils of matching quality also be used.Look at the see−through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “FULL” and “LOW” lines on the
reservoir. If the level is low, add the
coolant. (For the coolant type, see
“Coolant type selection” described be-
low.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “LOW” line, add
coolant. Bring the level up to the “FULL”
line.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
If you can find no leak, have any autho-
rized Toyota dealer or repairer, or another
duly qualified and equipped professional,
test the cap pressure and check for leaks
in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Dyna100/150_EE
Checking the engine coolant
level

230INDEX
A
Adding washer fluid 212..................
Adjustment
Driver ’s seat 25.......................
Seat belt 28...........................
Air bleeding 150.........................
Air conditioning filter 101.................
Air conditioningsystem 92...............
Airbag 38...............................
Anti−lock brake system
warning light 73.......................
Anti−theft steering column lock 80........
Appearance care
Cleaning the interior 181...............
Protecting your Toyota from
corrosion 178.......................
Washing and waxing 179...............
Audio system 84........................
Audio systemoperating tips 89...........
Auxiliary box 110........................
B
Battery
Access 190...........................
Checking battery condition 208.........
Gas caution 208.......................
Handling safety 208...................
Recharging precautions 210............
Winter driving tips 137.................
Before starting the engine 132............
Brake pad wear indicators 127............
Brake system 124.......................
Brake system warning light 73............
Brakes
Pad wear indicators 127................
Parking 82............................
Break−in tips 116........................
C
Carbon monoxide caution 122............
Card holder 112.........................
Center console box 111..................
Charging system warning light 73.........
Checking and replacing fuses 211........
Checking the engine oil level 196.........
Checking the radiator, condenser and
intercooler 200........................Child restraint
Child restraint system 45...............
Installation 48,51......................
Precautions 44........................
Types of child restraint system 46.......
Cigarette lighter and ashtrays 108........
Cleaning the interior 181.................
Cold weather
Operation 137.........................
Condenser
Checking the condenser 200...........
Controls, Instrument panel 2,6...........
Cooling system
Coolant level 198......................
Engine overheating 156................
Radiator and reservoir 198.............
Radiator cap 156......................
Winter driving tips 137.................
Corrosion prevention 178................
Cup holder 110..........................
D
Diesel particulate filter system 118........
Differential, Limited slip 128..............
Dimmer switch, Headlight 62.............
Directional signals 62....................
Do−it−yourself maintenance
Service precautions 193...............
Does your vehicle need repairing? 185....
Doors
Side doors 13.........................
DPF system 118.........................
Driver ’s seat 25.........................
Driving
Driving tips 132........................
Manual transmission 81................
Driving in the rain 136....................
Driving tips
Driving in the rain 136..................
Driving tips in various conditions 135....
Driving with a manual
transmission 81.....................
Economical driving 146................
Good driving practice 81...............
Pre−trip safety check 134..............
Winter driving tips 137.................
During
Break−in 116..........................
Dyna100/150_EE