more info required year/ speeds. Sluggish take up is normally low ATF will improve as it warms up. If its a 4 speed brake signal could be on or even the filter detached from the valve block. 4 speed also suffers with Transmission control module. A bad battery could also give rise to problems. If plugged into diagnostics may come up with no fault found. Look at live data for brake signal etc. for specialist www.fedauto.co.uk
mags
January 2011