The Suzuki Forenza brake light requires a 1157 bulb size for proper installation and function within the rear lighting assembly. Data for the specific bulb requirements covers the range from 2004 through 2008.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Suzuki Forenza uses the 1157 bulb for brake lighting across all model years from 2004-2008.
The 1157 is a dual-filament bulb, meaning it serves two separate lighting functions within a single housing, typically stop and tail lighting, through its higher 21W and lower 5W filaments respectively.
The 1157 uses a BAY15d bayonet base, which features two offset pins to ensure correct orientation during installation and to prevent substitution with single-filament bayonet bulbs that share a similar base profile.
The center high mount stop light on the Forenza uses the 168 bulb across all model years from 2004-2008, a different bulb type from the standard brake lights on the same vehicle.
The 168 is a miniature wedge-style T10 bulb rated at 12V and 4.9W, making it a low-wattage single-filament unit suited for supplemental stop light duty rather than primary brake lighting.
The wedge base of the 168 differs fundamentally from the BAY15d bayonet base of the 1157, meaning the two bulb types are not interchangeable with each other.
Both the 1157 and 168 conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and physical specifications recognized across those markets.
The dual-filament design of the 1157 contrasts with the single-filament 168, reflecting the different functional roles each bulb fills within the Forenza's brake lighting system.