Toyota Tercel Courtesy Bulb Size

The Toyota Tercel courtesy light requires a DE3175 bulb size for proper installation and function within the interior lighting system. Available data for the specified component covers a range from 1993 to 1998.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1993-1998	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Toyota Tercel uses the DE3175 bulb size for its courtesy lighting across the 1993-1998 model years.
The DE3175 is a festoon-type bulb, meaning it is cylindrical in form and makes electrical contact through metal caps at both ends rather than through a base socket.
The DE3175 operates at 12 volts, which is consistent with standard automotive electrical systems.
The bulb has a 31mm length, which is the critical fitment factor for festoon bulbs, as the end-cap contacts must span the fixture's contact points precisely.
The DE3175 designation follows ANSI standards recognized in both the United States and Canada, indicating a standardized specification rather than a proprietary part number.
Because festoon bulbs rely on length for proper contact, substituting a festoon bulb of a different length, such as the 28mm DE3021 or the 36mm DE3022, would result in an improper fit even if the voltage rating matched.