radio TOYOTA PRIUS PLUS 2019 User Guide

2794-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47D30E_(EE)• When driving on a narrow path surrounded by a structure, such as in a
tunnel or on an iron bridge
• When there is a metal object (manhole cover, steel plate, etc.), steps, or a
protrusion on the road surface or roadside
• When rapidly closing on an electric toll gate barrier, parking area barrier,
or other barrier that opens and closes
• When using an automatic car wash
• When the vehicle is hit by water, snow, dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When there are patterns or paint on the road or a wall that may be mis-
taken for a vehicle or pedestrian
• When driving near an object that reflects radio waves, such as a large
truck or guardrail • When a crossing pedestrian
approaches very close to the vehicle
• When passing through a place with a
low structure above the road (low ceil-
ing, traffic sign, etc.)
• When passing under an object (bill-
board, etc.) at the top of an uphill road
• When driving through or under
objects that may contact the vehicle,
such as thick grass, tree branches, or
a banner

2804-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)• When driving near a TV tower, broadcasting station, electric power plant,
or other location where strong radio waves or electrical noise may be
present
■Situations in which the system may not operate properly
●In some situations such as the following, a vehicle may not be detected by
the radar sensor and camera sensor, preventing the system from operating
properly:
• If an oncoming vehicle is approaching your vehicle
• If a vehicle ahead is a motorcycle or bicycle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If the sun or other light is shining directly on a vehicle ahead
• If a vehicle cuts in front of your vehicle or emerges from beside a vehicle
• If a vehicle ahead makes an abrupt maneuver (such as sudden swerving,
acceleration or deceleration)
• When suddenly cutting behind a preceding vehicle • If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance
• When a vehicle ahead is not directly
in front of your vehicle

3976-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
■Situations in which the tire pressure warning system may not operate
properly
●In the following cases, the tire pressure warning system may not operate
properly.
• If non-genuine Toyota wheels are used.
• When a replacement tire is used, the system may not operate correctly
due to the structure of the replacement tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If wheel without the tire pressure warning valve and transmitter is used.
• If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electri-
cal noise
• When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
●When the vehicle is parked, the time taken for the warning to start or go off
could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.

548What to do if... (Troubleshooting)
PRIUS +_OM_OM47D30E_(EE)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer. (P. 141)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately. (P. 143)
●Is the electronic key battery weak or depleted? (P. 417)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 227)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (P. 156)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (P. 147)
If you have a problem, check the following before contacting any
authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

562Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Radar cruise control
(dynamic radar cruise
control) ................................... 299
Radiator .................................... 386
Radio
*
Rear door sunshades .............. 360
Rear fog light
Replacing light bulbs ............. 428
Switch ................................... 250
Wattage................................. 536
Rear passenger’s seat belt
reminder light ........................ 450
Rear seat........................... 191, 196
Adjustment .................... 191, 196
Second seats ........................ 191
Third seats ............................ 196
Rear sunshade ......................... 360
Rear turn signal lights
Replacing light bulbs ............. 428
Turn signal lever ................... 239
Wattage................................. 536
Rear view mirror
Inside rear view mirror .......... 204
Outside rear view mirrors ...... 206
Rear view monitor system
*
Rear window defogger ............ 335
Rear window wiper .................. 255
Refueling .................................. 256
Capacity ................................ 528
Fuel types ............................. 528
Opening the fuel tank cap ..... 258
Regenerative braking ................ 82
Replacing
Electronic key battery............ 417
Fuses .................................... 419
Light bulbs............................. 423
Tires .............................. 478, 492
Road accident cautions ............ 89Seat belts.................................... 38
Adjusting the seat belt ............ 41
Child restraint system
installation ............................ 68
Cleaning and maintaining
the seat belt........................ 368
Emergency Locking
Retractor............................... 42
How to wear your seat belt ..... 36
How your child should wear
the seat belt.......................... 42
Pregnant women, proper
seat belt use ......................... 44
Reminder light and buzzer .... 450
Seat belt pretensioners ........... 41
SRS warning light ................. 445
Seat heaters ............................. 341
Seats
Adjustment ............ 187, 191, 196
Adjustment precautions ........ 189
Child seats/child restraint
system installation .......... 59, 67
Cleaning................................ 367
Front seats ............................ 187
Head restraint ....................... 199
Properly sitting in the seat ...... 36
Seat heaters ......................... 341
Second seats ........................ 191
Third seats ............................ 196
RS