WASHINGTON -- The government wants owners of about 5 million recalled Ford vehicles to bring their cars and trucks to dealerships to repair a cruise control switch system that has been tied to engine fires.

The National Highway Traffic Safety Administration issued a consumer advisory Tuesday to owners of certain unrepaired Ford, Lincoln and Mercury sport utility vehicles, pickup trucks, vans and passenger cars who have not responded to previous recalls.

The government said about 12 million vehicles have been part of the recall and nearly 5 million still have not been fixed.

A similar warning was issued in February but officials said the rate of the vehicles being repaired has declined.

A Ford spokesman said the company supports the government's efforts.

The cars affect by the recall are:

• 1993–2004 Ford F150
• 1993–1999 Ford F250 (gasoline engine)
• 1993–1996 Ford Bronco
• 1994–1996 Ford Econoline
• 1997–2002 Ford Expedition
• 1998–2002 Lincoln Navigator
• 1998–2002 Ford Ranger
• 1992–1998 Ford Crown Victoria, Mercury Grand Marquis and Lincoln Town Car
• 1993–1998 Lincoln Mark VIII
• 1993–1995 Ford Taurus SHO with automatic transmission
• 1994 Mercury Capri
• 1998–2001 Ford Explorer and Mercury Mountaineer
• 2001–2002 Ford Explorer Sport and Explorer Sport Trac
• 1992–1993 and 1997–2003 Ford E-150-350 gasoline or natural gas vehicles
• 2002 Ford E-550 gasoline engine vehicles
• 1996–2003 Ford E-450 gasoline or natural gas vehicles
• 1994–2002 Ford F-250 through F-550 super Duty trucks (gasoline engine)
• 2000–2002 Ford Excursion (gasoline engine)
• 2003 F250–F550 Super Duty, Ford Excursion
• 1995–2002 Ford F53 Motor home chassis
• 2002–2003 Lincoln Blackwood