Page 147 of 620
1473-4. Adjusting the steering wheel and mirrors
3
Operation of each component
PRIUS v_OM_OM47B12U_(U)
Steering wheel
Hold the steering wheel and
push the lever down.
Adjust to the ideal position by
moving the steering wheel hori-
zontally and vertically.
After adjustment, pull the lever up
to secure the steering wheel.
To sound the horn, press on or
close to the mark.
■After adjusting the steering wheel
Make sure that the steering wheel is securely locked.
The horn may not sound if the steering wheel is not securely locked.
Adjustment procedure
1
2
Horn
Page 534 of 620

534
PRIUS v_OM_OM47B12U_(U)
8-2. Steps to take in an emergency
If the hybrid system will not star t
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* (P. 536)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 79)
●There may be a malfunction in the immobilizer system.
* (P. 8 2 )
●There may be a malfunction in the shift control system.
*
(P. 177, 492, 505)
●The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 535)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●The 12-volt battery terminal connections may be loose or corroded.
(P. 439)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 174)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 535 of 620

5358-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●One or both of the 12-volt battery terminals may be disconnected.
(P. 439)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
1
2
3
Page 610 of 620

610Alphabetical index
PRIUS v_OM_OM47B12U_(U)
High mounted stoplight
Replacing .............................. 478
Hill-start assist control............ 247
Hood ......................................... 421
Hooks
Cargo hooks ......................... 381
Retaining hooks (floor mat)..... 28
Horn .......................................... 147
Hybrid battery (traction battery)
Location .................................. 77
Specification ......................... 555
Hybrid battery
(traction battery)
air intake vent .......................... 78
Hybrid system ............................ 73
Emergency shut off system .... 78
Energy
monitor/consumption
screen......................... 102, 108
EV drive mode ...................... 179
High voltage components ....... 77
Hybrid System Indicator.......... 98
Hybrid system precautions ..... 77
Hybrid vehicle driving tips ..... 260
If the hybrid system will
not start .............................. 534
Overheating .......................... 543
Power switch......................... 174
Regenerative braking.............. 75
Starting the hybrid system .... 174
Vehicle proximity
notification system ................ 74
Hybrid System Indicator ........... 98
Hybrid transmission ................ 181I/M test ...................................... 418
Identification
Engine .................................. 554
Vehicle .................................. 553
Ignition switch
(Power switch)....................... 174
Auto power off function ......... 176
Changing the power
switch modes ..................... 176
If your vehicle has to be
stopped in an emergency ... 483
Starting the hybrid system .... 174
Ignition switch light
(power switch light) .............. 373
Illuminated entry system ........ 375
Immobilizer system ................... 82
Indicators ................................... 86
Initialization
Items to initialize ................... 583
Maintenance data ................. 414
Tire pressure warning
system ................................ 445
Inside rear view mirror ............ 149
Instrument panel light
control ...................................... 94
Interior lights ........................... 373
Switch ........................... 374, 375
Wattage ................................ 560I