The car manufacturer said the slowdown would reduce output at its plants by as much as 50 per cent at least until early May.
The move comes after key parts-manufacturing plants in Japan, which supply the North American factories, were damaged by last month's earthquake and tsunami.
The slowdown is likely to cause shortages on Honda vehicles within weeks.
The reduction affects plants in Ohio, Indiana, Alabama and Mexico. An Alliston, Ont., plant that produces Honda Civics and several Acura lines has also been affected.
Honda said in late March that it would shut down assembly lines for several hours a day through April 22 "in the aftermath of the earthquake and tsunami."
The reduced production will now extend through May 6. The company says none of its 21,000 North American employees will be laid off as a result of the slowdown.
"Honda is making every effort to return to full production as soon as possible and to keep our plants operating without extensive interruptions," the company said in a statement released Friday.
The last two of Honda's damaged Japanese plants were brought back online on April 11, but it's expected to take some time before production returns to normal levels.
With files from The Associated Press
