Honda is recalling 344,000 Odyssey minivans.
2007-2008 model years are affected.
Honda says that a software and parts problem can cause hydraulic pressure to build in the braking system after an engine restart.
The buildup can suddenly be released, causing heavy and unexpected braking without the brake lamps coming on.
Honda says it will replace a "yaw sensor" but the part won't be available until early next year.
Honda said it is not aware of any crashes or injuries related to the problem.
Contact your dealer for information on how to prevent this problem from occurring.