Toyota Motor North America is recalling 310,000 Sienna minivans in the 2005, 2006, 2007, 2009 and 2010 model years because they’re at risk for a vehicle rollaway, the automaker said.

In these minivans, grease inside the shift lever assembly might transfer to other internal components and lead to malfunction. As a result, the shift lever might move out of the park position without the driver depressing the brake pedal. If this occurs when the parking brake isn’t engaged, the vehicle might roll away and pose a crash risk, Toyota explained in a released statement.

To fix the problem, Toyota dealers will replace the shift lock solenoid, remove the grease and reapply an appropriate amount of grease. There will be no charge for this service.

Vehicle owners can reach Toyota customer service at (800) 331-4331.