Honda  is recalling certain model year 2006 Acura RSX vehicles manufactured Jan. 18, 2006, through Aug. 12, 2006; and model year 2006/2007 Honda S2000 vehicles manufactured Jan. 19, 2006, through Nov. 13, 2006.

The brake booster may be unable to maintain a vacuum when the brake pedal is depressed, decreasing brake assist.

With reduced braking assistance, the vehicle may require additional brake pedal force to prevent a lengthened stopping distance, increasing the risk of a crash.

Honda will notify owners, and dealers will inspect the brake booster assembly. If necessary, the dealers will replace the booster assembly free of charge. The recall is expected to begin July 12, 2013. Owners may contact Honda at 1-310-783-2000. Honda’s recall number is JA4. Acura’s recall number is JA5.

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.