LONDON  Britain joined other governments bailing out their auto industries by announcing a $3.2 billion aid package on Tuesday, after three months of pleas from unions and executives of Jaguar Land Rover and Vauxhall, a General Motors brand.

The government offered automakers and suppliers access to £1.3 billion ($1.8 billion) in loan guarantees from the European Investment Bank, topped off with another £1 billion from the Treasury, the business secretary, Peter Mandelson, told Parliament on Tuesday. He said the government would also increase the amount that it spent on the training of employees.

The automotive industry “is in the front line of the downturn, with output falling faster and further than any other sector since the summer,” Mr. Mandelson said. “We need to counter this to prevent an irreversible loss of capacity, skills and technology.”

But he added that the “industry is not a lame duck and this is no bailout.”

“There is no blank check on offer, no operating subsidies,” Mr. Mandelson said.