Toyota 2015 Prius Owner's Manual page 658

What to do if...
■ Warning lights
or
or
642
PRIUS_OM_OM47A17U_DVD_(U)
Master warning light
P. 509
Brake system warning
light (red indicator)
P. 503
Charging system
warning light P. 504
High coolant
temperature warning
P. 504
light
Malfunction indicator
lamp
P. 505
SRS warning light
P. 505
ABS warning light
or
P. 505
Electric power steering
system warning light
P. 505
Pre-collision system
*
warning light P. 506
Slip indicator light
P. 506
Brake system warning
light (yellow indicator)
P. 506
Automatic headlight
leveling system
warning light P. 507
Cruise control indicator
*
light
P. 507