2012 TOYOTA DYNA 100/150 engine overheat

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

DO−IT−YOURSELF MAINTENANCE: Engine and Chassis201
Keep your tire inflation pressures at the
proper level.
The recommended cold tire inflation pres-
sures and tire sizes are given on page
226 in Section 8.
You should check the tire inflation pres-
sure every two weeks, or at least once a
month. And do not forget the spare!
Incorrect tire inflation pressure may waste
fuel, reduce the comfort of driving, reduce
tire life and make your vehicle less safe
to drive.
If a tire frequently needsrefilling,have it
checked by any authorized Toyota dealer
or repairer, or another duly qualified and
equipped professional.
The following instructions for checking
tire inflation pressure should be ob-
served:
DThe pressure should be checked only
when the tires are cold.If your ve-
hicle has been parked for at least 3
hours and has not been driven for
more than 1.5 km or 1 mile since, you
will get an accurate cold tire inflation
pressure reading.
DAlways use a tire pressure gauge.
The appearance of a tire can be mis-
leading. Besides, tire inflation pressur-
es that are even just a few pounds off
can degrade ride and handling.
DDo not bleed or reduce tire inflation
pressure after driving.It is normal for
the tire inflation pressure to be higher
after driving.
DBe sure to reinstall the tire valve
caps.Without the valve caps, dirt or
moisture could get into the valve core
and cause air leakage. If the caps
have been lost, have new ones put on
as soon as possible.
CAUTION
Keep your tires properly inflated.
Otherwise, the following conditions
may occur and cause an accident re-
sulting in death or serious injuries.
Low tire pressure (underinflation)—
DExcessive wear
DUneven wear
DPoor handling
DPossibility of blowouts from an
overheated tire
DPoor sealing of the tire bead
DWheel deformation and/or tire sepa-
ration
DA greater possibility of tire damage
from road hazards
High tire pressure (overinflation)—
DPoor handling
DExcessive wear
DUneven wear
DA greater possibility of tire damage
from road hazards
Dyna100/150_EE
Checking tire inflation
pressure

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

INDEX231
E
Economical driving
Saving money on both fuel and
repairs 146..........................
Electrical system
Access to the battery 190..............
Battery 208,210.......................
Fuse locations 190....................
Fuses 211............................
Emergency flasher switch 64.............
Emergency, In case of
Bleeding the fuelsystem 150...........
Blown fuse 211........................
Emergency flasher switch 64...........
Flat tire 157...........................
If you cannot increase engine
speed 155..........................
If you lose your keys 174...............
If your engine stalls while
driving 155..........................
If your vehicle becomes stuck 170......
If your vehicle has to be stopped in
an emergency 175...................
If your vehicle needs to be
towed 171...........................
If your vehicle will not start 150.........
Jump starting 151.....................
Overheating 156.......................
Towing 171............................
Engine
Access hole cover 17..................
Before starting the engine 132..........
Checking the coolant level 198.........
Engine compartment 188...............
Exhaust gas caution 122...............
Identification number 130..............
Oil consumption 123...................
Oil level 196...........................
Overheating 156.......................
Starting procedure 132.................
Turning off an engine with
turbocharger 134....................
Engine coolant
Temperature gauge 68.................
Winter driving tips 137.................
Engine coolant temperature gauge 68.....Engine oil
Oil maintenance management
system 70..........................
Winter driving tips 137.................
Engine oil change reminder light 73.......
Engine switch 80........................
Exhaust gas caution 122.................
F
Facts about engine oil
consumption 123......................
Flasher, Headlight 62....................
Flat tire
After changing wheels 170.............
If you have a flat tire 157...............
Installing wheel 167....................
Jack point 165.........................
Jacking precautions 157...............
Jacking up 165........................
Loosening wheel nuts 163..............
Lowering vehicle 168..................
Reinstalling wheel ornament 169........
Removing wheel ornament 163.........
Replacing inner rear wheel 166.........
Wheel block 162.......................
Floor mat 112...........................
Fluid level
Washer fluid 212......................
Fog light switch, Rear 64.................
Foreign countries, Operation in 118.......
Fuel
Bleeding the fuelsystem 150...........
Draining fuel filter water 200............
Fuel economy 146.....................
Gauge 68.............................
Operation in foreign countries 118......
Tank cap 21...........................
Fuel filter
Draining fuel filter water 200............
Fuel filter warning light 73................
Fuel information 116.....................
Fuse
Fuse box 211..........................
Fuse locations 190......................
Dyna100/150_EE

INDEX233
N
New vehicle break−in 116................
O
Odometer 70............................
Oil
Consumption 123......................
Oil maintenance management
system 70..........................
Viscosity and grade 196................
Oil consumption 123.....................
OMMS 70...............................
Operation in foreign countries 118........
Overheating, Engine 156.................
Overheating, Engine coolant 68..........
Overview
Engine compartment 188...............
P
Parking brake
Operation 82..........................
Reminder light 82.....................
Parking brake reminder light 73...........
Polishing 179...........................
Power window switches 14...............
Pre−trip safety check 134................
Precautions for turning off an engine
with turbocharger 134..................
Preloader (seat belt pretensioner) 35.....
Pretensioner
(seat belt pretensioner) 35.............
Protecting your Toyota from
corrosion 178.........................
R
Radiator
Checking the radiator 200..............
Coolant, Engine 198...................
Radio 84................................
Rear fog light switch 64..................
Rear heatersystem 100..................
Rear seat 26............................
Rear view mirrors
Folding 59............................
Outside 59............................
S
Safety check, Pre−trip 134...............
Seat belts
Cleaning 181..........................
Fastening 28..........................
Seat belt precautions 28...............
Seat belt pretensioner 35..............
Seats 24................................
Service and maintenance 184............
Service reminder indicator 73............
Side door locks 13.......................
Side doors 13...........................
Side gate 16............................
Side vents 99...........................
Spare fuse 211..........................
Spare tire 158...........................
Specifications 220.......................
SRS driver airbag 38....................
SRS warning light 73....................
Starting
Cold weather 132......................
Engine 132............................
Jump starting 151.....................
Steering
Adjusting steering wheel 58............
Storage precautions 109.................
Suspension and chassis 130.............
Switch
Emergency flasher 64.................
Engine 80.............................
Headlight, dimmer and
turn signal 62.......................
Heater idle up 101.....................
Ignition 80............................
Rear fog light 64.......................
Windshield wiper and washer 65........
T
Tachometer 69..........................
Tailgate 16..............................
Telescopic steering wheel 58.............
Tilt cab 18..............................
Tilt steering wheel 58....................
Timing belt replacement
warning light 73.......................
Dyna100/150_EE