Toyota recalling 2000 to 2003 model year Tundras to address a risk that part of frame could corrode

Corrosion could cause spare tires or even the gas tank to drop on the road

In November, Toyota recalled 100K Tundras sold in 20 cold-weather states, saying exposure to heavy road salt could cause corrosion

Toyota spokesman was unable to say how many additional vehicles would be involved

Toyota sent notice to dealer on Tuesday that it would expand the recall to Tundras sold in all 50 states

Toyota said rear cross-member of frame of Tundra could corrode in some cases

That could cause loss of rear brake circuits, making it harder for drivers to stop

In the worst case, fuel tank may drop to the ground and could be separated from the vehicle, potentially causing a crash or fire

Repair campaign adds to several safety problems w/ which Toyota is grappling