The Takata air bag recall has expanded with 2.3 million more cars recalled, bringing the total recalls to more than 26 million vehicles.
GM is recalling about 1 million older cars for possible engine oil leaks that could result in a fire.
Volkswagen sets up a new consumer information website for diesel owners, while many drivers worry that other automakers also have skirted EPA rules.
GM has settled with federal prosecutors, admitting it mishandled its huge car ignition switch recall.
Fiat Chrysler must pay a $105 million fine for recall problems and issued two new recalls affecting more than 1.7 million cars.
NHTSA has added more cars to its recall database affected by the Takata air bag recall and has added a VIN look-up tool for consumers.
Auto parts supplier Takata acknowledged that a defect exists its air bag inflators installed in 34 million cars.
Nissan and Toyota have yet again expanded the recall of their cars equipped with Takata air bags that may unexpectedly rupture.
NHTSA is recalling over 2.12 million previously recalled cars after the original repair was not effective in some cars.
NHTSA has fined Honda $70 million for its failure to report deaths, injuries and warranty claims to the federal government.