Some Prius owners complain of delayed braking

December 30, 2009 12:53:35 PM PST
Toyota says it is launching an investigation into complaints about the brakes on its popular Prius hybrid cars.

Several dozen people have complained to the automaker and federal safety officials about a delay in braking after they apply the brake pedal, especially when going over bumpy roads.

The complaints have come primarily from owners of the 2010 model Prius.

The National Highway Transportation Safety Board says it is aware of the issue, but has not opened a formal investigation.