Oldsmobile Silhouette Dome Light Bulb Size

The Oldsmobile Silhouette dome light utilizes bulb size 562, 561, or 168 depending on the specific version of the vehicle. Available data covers the range from 1990 through 2004.

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
1997-2004	562
1992-1996	561
1991	168
1990	561

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Oldsmobile Silhouette dome light specifications cover model years 1990 through 2004 and reference three distinct bulb sizes: 562, 561, and 168.
The 562 and 561 are both festoon-type bulbs with a 44mm length and end-cap contacts, operating at 12V and 12W. Both conform to ANSI standards applicable in the US and Canada.
Despite sharing identical physical and electrical ratings, the 562 and 561 are separate ANSI designations and are not confirmed as interchangeable by these specifications.
The 562 bulb is specified for the Oldsmobile Silhouette across model years 1997-2004.
The 561 bulb is specified for model years 1990, 1992-1996. The 1991 model year is the sole exception within that range, using a different bulb type entirely.
The 1991 Oldsmobile Silhouette uses the 168, a miniature wedge bulb of the T10 form factor, rated at 12V and 4.9W. This is electrically and physically distinct from the festoon types used in surrounding model years.
The T10 wedge format of the 168 bulb uses a wedge-base retention method, which differs from the end-cap contact design of the 561 and 562 festoon bulbs. These mounting styles are not interchangeable.
At 4.9W, the 168 bulb draws considerably less power than the 12W festoon bulbs specified for all other Silhouette model years in this data set.
Festoon bulbs seat by spring tension between two end contacts within a fixed-length housing. A correct length match is necessary for proper contact and retention, making the 44mm specification a functionally critical value for the 561 and 562.