Page 380 of 496

3807-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
(If equipped)
Hybrid system overheat warning light (warning buzzer)The hybrid system has overheated
This light may come on when driving under severe operat-
ing conditions, and the output of the hybrid system may
temporarily decrease in order to protect the system. (For
example, when driving up a long steep hill or driving up a
steep hill in reverse.)
→ Stop and check. ( →P. 444)
(If equipped)
Cruise control indicator (yellow indicator)
Indicates a malfunction in the cruise control
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Only outer frame flashes)
(If equipped)
Low hybrid battery (traction battery) warning light
(warning buzzer)
Hybrid battery (traction battery) level becomes low
because the shift position is in N for long time
→ Because recharging is not possible when the shift
position is in N, shift the shift position to P when
parking the vehicle for a long time.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine
coolant temperature increases
→ Stop and check. ( →P. 444)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling
system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.0 L (1.6
gal., 1.3 Imp.gal.) or less
→ Refuel the vehicle.
Warning lightWarning light/Details/Actions
Page 445 of 496

4457-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
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 condi tioning 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 any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
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Page 446 of 496
4467-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)■
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
any authorized Toyota dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
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 any authorized
Toyota dealer or repairer, or
another duly qualified and
equipped professional as soon
as possible.
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Page 492 of 496

492Alphabetical index
PRIUS +_OM_OM47888E_(EE)
USB memory*
USB port*
Vanity lightsVanity lights........................... 292
Wattage................................. 462
Vanity mirrors .......................... 292 Vanity lights........................... 292
Wattage................................. 462
Vehicle identification number ................................... 453
Vehicle Stability Control (VSC)....................................... 248
VSC (Vehicle Stability Control) .................................. 248
Warning buzzers Approach warning ................. 238
Brake system ........................ 376
Downshifting ......................... 210
Driver’s seat belt reminder .... 381
Front passenger’s seat belt reminder ............................. 381
Open door ............................. 380
Pre-crash warning ................. 254
Radar cruise control .............. 238
Seat belt reminder................. 381 Warning lights
ABS....................................... 377
Automatic headlight leveling system ................................ 380
Brake system ........................ 376
Charging system ................... 376
Cruise control........................ 380
Driver’s seat belt reminder .... 381
Electronic engine control
system ................................ 377
Electric power steering ......... 377
Front passenger’s seat belt reminder ............................. 381
Go to service......................... 382
High coolant temperature ..... 380
Hybrid battery indicator ......... 379
Hybrid system ....................... 377
Hybrid system overheat ........ 380
LED headlight ....................... 379
Low engine oil pressure ........ 377
Low fuel level ........................ 380
Low hybrid battery (traction battery) ................. 380
Malfunction indicator lamp .... 377
Master warning light.............. 381
Open door ............................. 380
Parking lock system ...... 378, 379
P position request
indicator.............................. 379
PCS ...................................... 378
Rear passenger’s seat belt
reminder ............................. 381
Seat belt reminder light ......... 381
Slip indicator ......................... 378
SRS ...................................... 377
Tire pressure......................... 381
U
V
W