Chrysler is recalling 20,283 2006-'09 Dodge Charger and Magnum vehicles built with the police package equipped with a column shifter.

The National Highway Traffic Safety Administration says the gearshift cable may become disengaged from the steering column mounting bracket and cause an incorrect transmission gearshift position display.

"This could allow the vehicle to move inadvertently and cause a crash without warning," said NHTSA in its recall summary of the problem.

Chrysler said it is not aware of any crashes, injuries or fatalities related to the safety recall. The recall comes after nine customer complaints and 55 field reports of problems with 2007 Dodge Charger and Magnum police vehicles, said NHTSA.

The problem was first reported in September 2008 by the Montgomery County, Md., Police Department. The department indicated it was possible for the police vehicles to appear as though they were in "park" gear but were actually in "drive."

Chrysler dealers will add a redundant locking mechanism to the gearshift cable at the mounting bracket to "ensure proper retention and shift linkage function."

The recall is expected to begin sometime in November. Owners may contact Chrysler at 800-853-1403.