 To find out more, go to WTOP.com. Vehicle shortages in the past few years have now been replaced by overstocked inventories. That could mean layoffs for some automakers. Starting today, a Jeep plant in Toledo will sit idle for six weeks, and a shift is now gone at another Jeep plant in suburban Detroit through at least July. At least 1,600 workers are now on layoff. Sam Fiorani of Auto Forecast Solutions says bloated inventories lead to production cutbacks.