The National Highway Traffic Safety Administration broadened its advisory to have vehicles with defective Takata airbags repaired as quickly as possible; a move cheered by a pair of Kelley Blue Book analysts.

NHTSA first urged owners of more than 4.7 million vehicles to take action and then expanded it to more than 7.8 million units from Toyota, Honda, Mazda, BMW, Nissan, Mitsubishi, Subaru, Chrysler, Ford and General Motors.

Federal officials indicated some of these recalls were first announced as far back as 18 months ago while others came as recently as Monday. They emphasized their message comes with urgency, especially for owners of vehicles affected by regional recalls in the following areas: Florida, Puerto Rico, limited areas near the Gulf of Mexico in Texas, Alabama, Mississippi, Georgia, and Louisiana, as well as Guam, Saipan, American Samoa, Virgin Islands and Hawaii.

“It's good to see Takata's defective air bag issue finally getting the attention it deserves from the NHTSA and media,” Kelley Blue Book senior analyst Karl Brauer said. “This is one of the largest recalls in the history of the automobile, affecting millions of car from several manufacturers. A lack of awareness regarding the potential danger from these devices has been almost as troubling as the danger itself.

“Of course this is only the first step of a long process,” Brauer continued. “With so many vehicles being recalled it will take years to address the danger, and there will be far too many consumers that ignore the recall and continue to operate cars capable of throwing shrapnel at the driver or front passenger during an accident.”

KBB senior analyst and editor Jack Nerad echoed much of Brauer’s sentiments.

“This is one of the most massive recalls of all time and just when you think it is contained there is a new outbreak,” Nerad said. “The National Highway Traffic Safety Administration is taking unprecedented steps to get this problem into the public consciousness and, importantly, keep it there.”

NHTSA deputy administrator David Friedman explained why the agency expanded its advisory on Tuesday.

"Responding to these recalls, whether old or new, is essential to personal safety and it will help aid our ongoing investigation into Takata airbags and what appears to be a problem related to extended exposure to consistently high humidity and temperatures,” Friedman said.

“However, we’re leaving no stone unturned in our aggressive pursuit to track down the full geographic scope of this issue” he added.

NHTSA offered a new breakdown of the involved vehicles by OEM and model year:

BMW: 627,615 total number of potentially affected vehicles

2000 – 2005 3 Series Sedan

2000 – 2006 3 Series Coupe

2000 – 2005 3 Series Sports Wagon

2000 – 2006 3 Series Convertible

2001 – 2006 M3 Coupe

2001 – 2006 M3 Convertible

Chrysler: 371,309 total number of potentially affected vehicles

2003 – 2008 Dodge Ram 1500

2005 – 2008 Dodge Ram 2500

2006 – 2008 Dodge Ram 3500

2006 – 2008 Dodge Ram 4500

2008 – Dodge Ram 5500

2005 – 2008 Dodge Durango

2005 – 2008 Dodge Dakota

2005 – 2008 Chrysler 300

2007 – 2008 Chrysler Aspen

Ford: 58,669 total number of potentially affected vehicles

2004 – Ranger

2005 – 2006 GT

2005 – 2007 Mustang

General Motors: undetermined total number of potentially affected vehicles

2003 – 2005 Pontiac Vibe

2005 – Saab 9-2X

Honda: 5,051,364 total number of potentially affected vehicles

2001 – 2007 Honda Accord

2001 – 2002 Honda Accord

2001 – 2005 Honda Civic

2002 – 2006 Honda CR-V

2003 – 2011 Honda Element

2002 – 2004 Honda Odyssey

2003 – 2007 Honda Pilot

2006 – Honda Ridgeline

2003 – 2006 Acura MDX

2002 – 2003 Acura TL/CL

2005 – Acura RL

Mazda: 64,872 total number of potentially affected vehicles

2003 – 2007 Mazda6

2006 – 2007 MazdaSpeed6

2004 – 2008 Mazda RX-8

2004 – 2005 MPV

2004 – B-Series Truck

Mitsubishi: 11,985 total number of potentially affected vehicles

2004 – 2005 Lancer

2006 – 2007 Raider

Nissan: 694,626 total number of potentially affected vehicles

2001 – 2003 Nissan Maxima

2001 – 2004 Nissan Pathfinder

2002 – 2004 Nissan Sentra

2001 – 2004 Infiniti I30/I35

2002 – 2003 Infiniti QX4

2003 – 2005 Infiniti FX35/FX45

Subaru: 17,516 total number of potentially affected vehicles

2003 – 2005 Baja

2003 – 2005 Legacy

2003 – 2005 Outback

2004 – 2005 Impreza

Toyota: 877,000 total number of potentially affected vehicles

2002 – 2005 Lexus SC

2002 – 2005 Toyota Corolla

2003 – 2005 Toyota Corolla Matrix

2002 – 2005 Toyota Sequoia

2003 – 2005 Toyota Tundra