Toyota RAV4 Map Light Bulb Size

Additional Notes

• The Toyota RAV4 map light draws from four distinct bulb types across its model history: the 194, 168, 12961, DE3175, and 57, reflecting hardware changes across successive generations.
• The 194 and 168 are both T10 miniature wedge bulbs operating at 12V, though they differ in wattage. The 194 draws 3.78W while the 168 draws 4.9W, meaning the two are physically similar but not electrically identical.
• The Toyota RAV4 (2022-2024) uses the 194 bulb, while the 2015-2020 model years use the 168. Although both are T10 wedge types, substituting one for the other introduces a wattage mismatch relative to the original specification.
• The 12961 is a Philips part number designation for a T10 wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. This is the same base type as the 194 and 168, making physical fitment possible, but the 12961 carries a higher wattage than either ANSI-designated alternative.
• The RAV4 model years 2006-2011 are specified with the 12961 bulb. Because this is a manufacturer part number rather than an ANSI standard, cross-referencing with ANSI equivalents requires verifying the W2.1x9.5d base compatibility.
• The DE3175 is a festoon-type bulb with a 31mm length and end-cap contacts, operating at 12V. Its physical format is fundamentally different from the wedge and bayonet types used in other RAV4 years, and it is not interchangeable with T10 or BA9s bulbs.
• The RAV4 used the DE3175 festoon bulb across two separate periods: 2000-2005 and again in 1996. The 1997-1999 model years fall outside this fitment, using different bulb types entirely.
• The 57 bulb, specified for the 1997-1999 RAV4, uses a BA9s bayonet base and is rated at 12V and 1W. The BA9s base is a single-contact bayonet fitting, which is physically incompatible with wedge or festoon sockets.
• At 1W, the 57 bulb carries the lowest wattage of any bulb type in these specifications. Installing a higher-wattage replacement in a socket designed for the 57 risks exceeding the thermal and electrical tolerances of that fixture.
• The 1996 RAV4 shares the DE3175 festoon specification with the 2000-2005 model years, despite the intervening 1997-1999 years being specified with the unrelated 57 bulb, indicating a socket design change between those generations.