Dow Jones reports that Chrysler is boosting production as the government’s “Cash for Clunkers” program continues to pump demand, reducing the number of vehicles available at dealers.

Sources in the United Auto Workers union say employees at the Warren Plant were told they will work overtime Saturday shifts on Aug. 29, Sept. 19 and Sept. 26 and additional overtime may be scheduled in October. The Warren plant builds Dodge Ram full-size and Dakota mid-size pickups.

Chrysler officials would not comment on the reports.

Chrysler wants to respond to surging new demand without building too many vehicles which then require heavy incentives to move.