Page 544 of 620
5448-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(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 the 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 545 of 620
5458-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(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 613 of 620

613Alphabetical index
PRIUS v_OM_OM47B12U_(U)
P position switch ..................... 182
Panic mode .............................. 117
Parking brake
Operation .............................. 188
Parking brake engaged
warning buzzer ................... 495
Parking lights
Light switch ........................... 189
Replacing light bulbs..... 471, 478
Wattage ................................ 560
Parking lock ............................. 182
PCS (Pre-Collision system)
Function ................................ 253
PCS switch ........................... 254
Warning light ......................... 491
Warning message ......... 506, 508
Personal lights ......................... 373
Switch ................................... 374
Wattage ................................ 560
Power control unit coolant
Capacity ................................ 557
Checking ............................... 431
Preparing and checking
before winter....................... 263
Radiator ................................ 433
Power outlets ........................... 386
Power steering (Electric
Power Steering system) ....... 246
Warning light ......................... 491Power 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
Power switch light ................... 373
Power windows
Jam protection function ........ 154
Operation .............................. 153
Window lock switch .............. 153
Pre-Collision System (PCS)
Function ................................ 253
PCS switch ........................... 254
Warning light......................... 491
Warning message......... 506, 508
Radar cruise control
(dynamic radar cruise
control)................................... 214
Radiator .................................... 433
Radio ........................................ 290
Rear seat .................................. 142
Rear side marker lights
Light switch ........................... 189
P
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.