Chevrolet Silverado Map Light Bulb Size

Additional Notes

• The Chevrolet Silverado map light specifications reference three distinct bulb sizes across model years 1999 through 2014: the 212-2, the 211-2, and the 168.
• The 212-2 and 211-2 are both festoon-type bulbs with a 41mm length and an SV8.5 base, rated at 12V and 12W under the ANSI standard applicable in the US and Canada.
• The 168 is a miniature wedge bulb of the T10 type, also ANSI-rated for the US and Canada, operating at 12V with a significantly lower power draw of 4.9W compared to the festoon types.
• The festoon format of the 212-2 and 211-2 means the bulb is held in place by spring-loaded contacts at each end rather than a socket, which is a structurally different mounting method from the wedge-base 168.
• The 212-2 is the most frequently specified bulb across these model years, covering the Silverado from 2007 through 2013, and the 2500/3500 HD variant in 2014.
• The 168 wedge bulb appears across 1999 and 2002-2006, representing a lower-wattage map light application relative to the festoon-equipped years.
• The 2014 Chevrolet Silverado 2500/3500 HD uses the 212-2, while the specification does not assign the same bulb to other 2014 Silverado configurations in this data set.
• The 211-2 and 212-2 share identical physical and electrical ratings, yet they carry separate ANSI designations, which can indicate manufacturer-specific or application-specific distinctions that may affect direct interchangeability in certain housings.
• The 2000-2001 model years use the 211-2, placing them in a transitional period between the 168 wedge application seen in 1999 and the later widespread adoption of the 212-2 beginning in 2007.