Buick LeSabre Map Light Bulb Size

The Buick LeSabre map light uses bulb sizes 578, 212-2, 168, 562, 1004, 211-2, 561, 194, and 90. Available data covers the range of 1959 through 2005.

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
2000-2005	578
1996-1999	212-2
1995	168 (Center)
1992	562
1985-1987	1004
1975-1982	211-2
1974	561
1972-1973	211-2
1971	194
1962-1968	90
1959-1960	90

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W.	578
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	212-2
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
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). 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. 12V, 13W.	90

Other Locations

Additional Notes

The festoon bulb type is the most frequently specified map light bulb across the Buick LeSabre's model history, appearing in multiple ANSI-standard variants including the 578, 212-2, 211-2, 561, and 562.
The 211-2 and 212-2 are both 41mm festoon bulbs rated at 12V and 12W, each using an SV8.5 base. Despite their near-identical specifications, the two are distinct part numbers and are not listed interchangeably in these specifications.
The 578 is a 41mm festoon bulb with end-cap contacts, rated at 12V and 12W. It is the specified map light bulb for the Buick LeSabre across the 2000-2005 model years.
The 578 and 212-2 share the same voltage, wattage, and physical length, but differ in base type. The 578 uses end-cap contacts while the 212-2 uses an SV8.5 base, which affects socket compatibility.
The 561 and 562 are both 44mm festoon bulbs with end-cap contacts, rated at 12V and 12W. They differ from the 578 in length, making them physically incompatible with sockets sized for 41mm festoon bulbs.
The 1004 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with a 21/5W output. It is described as a variant of the 1157 and is the specified map light bulb for the 1985-1987 model years.
The 90 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 13W. It is the specified map light bulb for the 1959-1968 model years, representing the longest continuous span of a single bulb type in these specifications.
The 1971 Buick LeSabre uses the 194, a T10 miniature wedge bulb rated at 12V and 3.78W, while the 1995 model specifies the 168, also a T10 miniature wedge bulb but rated at a higher 4.9W. The two are not listed as interchangeable.
The 1974 model year is the only one in these specifications to use the 561, while the 1992 model year is the only one to use the 562. Both are 44mm end-cap festoon bulbs with identical electrical ratings, yet they carry separate ANSI designations.
The 1995 Buick LeSabre map light specification includes a positional note, listing the 168 bulb specifically for the center position, indicating that model year may have had multiple map light sockets with potentially differing bulb requirements.