The Buick Rendezvous inner tail light requires a 194 bulb size while the outer tail light uses a 3157 bulb size. The replacement chart covers 2002 through 2007 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Buick Rendezvous uses two distinct bulb types across its tail light assembly, with the 194 assigned to the inner tail light position and the 3157 assigned to the outer tail light position for the 2002-2007 model years.
The 194 bulb is an ANSI-standardized miniature wedge type, classified under the T10 form factor, operating at 12 volts and drawing 3.78 watts.
The T10 wedge base of the 194 bulb relies on the bulb body itself to make electrical contact within the socket, with no separate metal base or pins involved.
The 3157 bulb is an ANSI-standardized dual-filament wedge type, classified under the T25 form factor, operating at 12 volts with a wattage rating of 27W on the high filament and 7W on the low filament.
The dual-filament design of the 3157 allows a single bulb to serve two lighting functions simultaneously, typically combining stop or turn signal output with a lower-intensity running light function.
Both the 194 and 3157 carry ANSI standardization recognized in both the United States and Canada, meaning their electrical and physical specifications conform to a defined industry standard rather than a proprietary format.
The 194 and 3157 are not interchangeable with each other, as they differ in physical size, wattage, filament count, and socket type.
The consistent bulb fitment across all six model years of the Rendezvous means the 194 and 3157 specifications apply uniformly from the 2002 through 2007 model years without variation by year.