Page 543 of 621
5428-2. Steps to take in an emergency
PRIUS v_OM_OM47887U_(U)
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from th e radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
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Page 544 of 621
5438-2. Steps to take in an emergency
PRIUS v_OM_OM47887U_(U)
8
When trouble arises
■If the hybrid system overheat warning light comes on or the
warning message indicating overheat is shown on the multi-
information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
The coolant level is satisfactory if it is between the “F” and “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
If water was added in an emer-
gency, have the vehicle
inspected at your Toyota dealer
as soon as possible.
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Page 612 of 621

611Alphabetical index
PRIUS v_OM_OM47887U_(U)
P position switch ..................... 180
Panic mode .............................. 117
Parking brakeOperation .............................. 186
Parking brake engaged warning buzzer ................... 493
Parking lights Light switch ........................... 187
Replacing light bulbs..... 469, 476
Wattage ................................ 558
Parking lock ............................. 180
PCS (Pre-Collision system)
Function ................................ 251
PCS switch ........................... 252
Warning light ......................... 489
Warning message ......... 504, 506
Personal lights ......................... 371
Switch ................................... 372
Wattage ................................ 558
Power control unit coolant
Capacity ................................ 555
Checking ............................... 429
Preparing and checking before winter....................... 261
Radiator ................................ 431
Power outlets ........................... 384
Power steering (Electric Power Steering system) ....... 244 Warning light ......................... 489 Power switch ........................... 172
Auto power off function ......... 174
Changing the power
switch modes ..................... 174
If your vehicle has to be
stopped in an emergency ... 481
Starting the hybrid system .... 172
Power switch light ................... 371
Power windows
Jam protection function ........ 153
Operation .............................. 152
Window lock switch .............. 152
Pre-Collision System (PCS) Function ................................ 251
PCS switch ........................... 252
Warning light......................... 489
Warning message......... 504, 506
Radar cruise control (dynamic radar cruise
control)................................... 212
Radiator .................................... 431
Radio ........................................ 288
Rear seat .................................. 141
Rear side marker lights Light switch ........................... 187
P
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.