The Pontiac Safari brake light requires a 2057 bulb size for the specific lighting components located at the rear of the vehicle. Data for the bulb specifications covers the range from 1987 through 1989.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Pontiac Safari uses the 2057 bulb for brake lighting across the 1987-1989 model years, making it the most consistently applied bulb type in these specifications.
The 2057 is a dual-filament bulb rated at 12V with a wattage split of 26.9W for the high-intensity filament and 8W for the low-intensity filament, mounted on a BAY15d bayonet base.
As a dual-filament design, the 2057 serves functions requiring two brightness levels from a single housing, which is typical of combined stop and tail light applications.
The 2057 is described as a brighter variant of the 1157, meaning the two bulbs share the same BAY15d base type but are not directly interchangeable due to differing wattage output.
The center high mount stop light on the 1987-1988 Safari uses the 1156, a single-filament bulb with a BA15s bayonet base rated at 12V and 21W.
The BA15s base of the 1156 differs from the BAY15d base of the 2057. The two base types are physically distinct and are not interchangeable despite both using a bayonet-style mounting.
The 1989 Safari center high mount stop light uses the 211-2, a festoon-style bulb with an SV8.5 base rated at 12V and 12W, representing a different bulb format entirely from the bayonet-based types used in prior model years.
The 211-2 festoon bulb has a 41mm length and fits into a holder by compression between two contact points, a mounting method mechanically unrelated to the bayonet bases used by the 2057 and 1156.
All three bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada.
The center high mount stop light on the 1989 Safari requires a different bulb than the 1987-1988 models, meaning parts sourced for earlier model years are not compatible with the 1989 application.