Toyota Yaris high beam and low beam headlight bulbs both use 9003 size bulbs for optimal illumination. The replacement chart covers 2013 through 2019 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb type is specified across all listed model years for both high beam and low beam headlight positions in the Toyota Yaris, making it the sole bulb type present in these specifications.
The 9003 bulb is a dual-filament halogen type that serves both high and low beam functions within a single housing, operating at 60 watts on the high beam filament and 55 watts on the low beam filament at 12 volts.
The 9003 designation is the American market equivalent of the internationally recognized H4 bulb standard, and the two are electrically and physically interchangeable in most applications.
For the 2019 Toyota Yaris, the 9003 fitment for both beam positions is qualified with the notation "With Halogen Capsule Headlamps," indicating that this specification applies only to vehicles equipped with that particular headlamp configuration.
The 2013-2014 and 2018 model years carry no such qualifier, meaning the 9003 specification for those years applies without a stated conditional headlamp type.
Because the 9003 handles both beam functions through two filaments in one bulb, replacing only the high beam or only the low beam is not possible without replacing the entire bulb unit.
The consistent use of the 9003 across the 2013, 2014, 2018, and 2019 model years indicates cross-year fitment compatibility for this bulb position, though the 2019 conditional notation warrants attention before substitution.