Buick Riviera Map Light Bulb Size

The Buick Riviera map light utilizes bulb sizes 89, 168, 194, 211-2, 561, 562, 906, 912, and 1004 depending on the specific production version. Available data for the components covers a range from 1963 through 1999.

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
1996-1999	168
1995	906
1990-1993	562
1985-1988	1004
1983-1984	912
1982	1004
1979-1981	211-2
1975-1977	211-2
1974	561
1972-1973	211-2
1971	194
1963-1967	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.	1004
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.	912
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

Other Locations

Additional Notes

The Buick Riviera map light specifications span model years 1963 through 1999, with seven distinct bulb sizes used across that period: 89, 168, 194, 211-2, 561, 562, 906, 912, and 1004.
The 211-2 festoon bulb is the most frequently specified size across the Riviera's map light history, covering model years 1972-1973, 1975-1981, with the exception of 1974. It operates at 12V and 12W and uses an SV8.5 base with a 41mm festoon body.
The 168 wedge bulb (T10) is specified for the Buick Riviera map light across 1996-1999. It operates at 12V and 4.9W, making it a lower-wattage T10 compared to other wedge types in these specifications.
The 562 and 211-2 bulbs share the same voltage and wattage ratings (12V, 12W) but differ in construction. The 562 uses end-cap contacts at 44mm, while the 211-2 uses an SV8.5 base at 41mm, meaning the two are not physically interchangeable despite identical electrical ratings.
The 562 festoon bulb is specified for model years 1990-1993. Its 44mm length and end-cap contact design are shared with the 561 bulb, which is specified for 1974.
The 1004 bulb, specified for 1982 and 1985-1988, is a dual-filament BAY15d bayonet bulb and a variant of the 1157. Its dual-filament design is atypical for a map light application, as map lights generally require only a single-filament source.
The 912 wedge bulb (T15) is specified for the Riviera map light in 1983-1984. It is a variant of the 921 and operates at 12V and 12W, placing it at a higher wattage than the T10 wedge types also found in these specifications.
The 89 bayonet bulb is specified for model years 1963-1967. It uses a BA15s single-contact base and is described as a lower-wattage variant of the 1156, operating at 12V and 13W.
The 906 bulb, specified for 1995, shares the T10 wedge form factor with the 168 and 194 bulbs but operates at 8W, placing it between the 194 (3.78W) and the higher-wattage wedge and festoon types in these specifications. The three T10 types are not interchangeable where wattage tolerance is a factor.
The 194 miniature wedge (T10) is specified for the 1971 model year and operates at 12V and 3.78W, the lowest wattage of any bulb size listed in these Riviera map light specifications.