The Toyota RAV4 dome light and rear dome light both use a DE3175 bulb size. The replacement chart covers vehicle production spanning from 1996 to 2020.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota RAV4 dome light bulb specification calls for the DE3175 across model years 1996-2020, with the sole exception of 2012-2014, which are not listed in the specifications.
The DE3175 is a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at each end rather than through a base or pins.
Festoon bulbs seat into spring-loaded clips inside the fixture, and the end-cap contact design means the bulb is held in place by tension rather than a locking socket.
The DE3175 has a nominal length of 31mm, which is a critical fitment factor, as festoon bulbs must match the fixture span to seat correctly and maintain contact.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
The DE3175 designation follows ANSI standards applicable in the United States and Canada, indicating a standardized specification for voltage, size, and contact type.
The Toyota RAV4 (2017-2018) rear dome light also uses the DE3175, meaning the front and rear dome positions share the same bulb specification for those model years.
Because the DE3175 is an ANSI-standardized size, bulbs carrying this designation from different manufacturers are generally interchangeable, provided the 31mm festoon format and 12V rating are maintained.