Chevrolet Colorado Map Light Bulb Size

The Chevrolet Colorado map light utilizes bulb sizes 194, 12961, 212-2, and 211-2 depending on the specific version of the vehicle. Available data for the lighting components covers the range from 2004 to 2024.

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

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2023-2024	194	W5W	Check Price
2019-2020	12961	12961	Check Price
2009-2012	212-2	212-2	Check Price
2004-2008	211-2	211-2	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	212-2	Check Price
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2	Check Price

Other Locations

Additional Notes

The Chevrolet Colorado map light uses three distinct bulb types across its production span: the 194, 12961, and the 211-2 and 212-2 festoon bulbs.
The 194 is an ANSI-standardized miniature wedge bulb in the T10 form factor, rated at 12V and 3.78W, and is specified for the 2023-2024 Colorado.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. It is specified for the 2019-2020 Colorado, and its wattage is notably higher than the ANSI 194 despite sharing the same T10 form factor.
Because the 194 and 12961 are both T10 wedge bulbs but carry different wattage ratings (3.78W versus 5W), they are not confirmed interchangeable across the 2019-2020 and 2023-2024 model years.
The 211-2 is an ANSI-standardized festoon bulb with an SV8.5 base, a 41mm length, and a 12V, 12W rating. It is specified for the 2004-2008 Colorado.
The 212-2 shares the same ANSI festoon form factor as the 211-2, with an identical SV8.5 base, 41mm length, and 12V, 12W rating. It is specified for the 2009-2012 Colorado.
Although the 211-2 and 212-2 share the same physical form factor, voltage, and wattage, they carry separate ANSI designations, and substituting one for the other is not confirmed by these specifications.
The SV8.5 base designation on both festoon types refers to a single-contact bayonet-style cap with an 8.5mm cap width, a common standard in interior automotive lighting.
The W2.1x9.5d base designation on the 12961 describes a wedge-type base where the contact width is 2.1mm and the pin spacing is 9.5mm, a standard used across many European and Asian vehicle platforms.
The map light specification for the Chevrolet Colorado transitions from high-wattage festoon bulbs (12W) in the 2004-2012 range to lower-wattage T10 wedge bulbs (5W and 3.78W) in later model years, reflecting a shift in the socket type used for this application.