Page 719 of 808

7198-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
8
When trouble arises
The coolant level is satisfactory if it is between the “MAX” and
“MIN” lines on the reservoir.
Reservoir
“MAX” line
“MIN” 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 t he radiator or hoses.
The fans operate when the temperature setting is adjusted to “LO” and
“A/C” switch (
*1 • *2) is turned on immediately 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 “A/C” switch
(
*1 • *2) on and off repeatedly. (The fans may not
operate in freezing temperatures.)
*1: Vehicles with 7-inch display
*2: Vehicles with 11.6-inch display
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 neare st Toyota dealer.
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Page 720 of 808
7208-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)■
If “Hybrid System Overheated” is shown on the multi-informa-
tion 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 (radiat or) 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 “FULL” a nd
“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.
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 799 of 808

799Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
Vanity lights ............................. 549Wattage ................................ 734
Vanity mirrors .......................... 549
Vehicle data recording .............. 10
Vehicle identification number ................................... 727
Vehicle proximity notification system ...................................... 93
Vehicle Stability Control (VSC) ...................................... 496
Voice command system
*
VSC (Vehicle Stability
Control) .................................. 496
Warning buzzers Approach warning ................. 419
Brake system ....... ................. 671
Intuitive parking assist .......... 444
LTA (Lane Tracing Assist) .... 395
Open door ..................... 283, 673
Parking Support Brake function ............................... 457
Pre-collision warning............. 379
Radar cruise control.............. 419
RCTA (Rear Cross Traffic Alert) ................................... 427
RSA (Road Sign Assist)........ 405
Seat belt reminder ................ 674
Shift position ......................... 341 Warning lights ......................... 202
ABS ...................................... 672
Brake Override System ........ 675
Brake system ....... ................. 671
Charging system................... 671
Drive-Start Control ................ 675
Driver’s seat belt reminder light..................................... 674
Electronic engine control system .......... ...................... 671
Electric power steering
system .......... ...................... 672
Front passenger’s seat belt reminder light ..................... 674
High coolant temperature ..... 673
Low engine oil pressure........ 671
Low fuel level ........................ 673
Malfunction indicator lamp .... 671
Master warning light ............. 674
Open door............................. 673
Parking Support Brake function............................... 675
PCS ...................................... 672
PKSB OFF indicator ............. 673
Rear passengers’ seat belt
reminder light ..................... 674
Seat belt reminder light......... 674
Slip indicator ......................... 673
SRS ...................................... 672
Tire pressure ........................ 674
V
W
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.