Although the Endeavor is an all-new vehicle for 2004, an upgraded 2004.5 model was released midway through the year to address some initial shortcomings. The list of upgrades includes more horsepower (225), daytime running lamps, advanced dual-stage front airbags and a tire-pressure monitor as standard. An improved ABS system (with Electronic Brakeforce Distribution and traction control) is now available on LS 2WD models and standard on XLS 2WD and Limited 2WD. A full-size spare with alloy wheel and a towing prep package is now standard on LS AWD (optional LS 2WD) and XLS. Standard side-impact airbags for front-seat passengers have been added to the Endeavor XLS. Rounding out the 2004.5 changes are a handful of new options, including a rear-seat DVD entertainment system for XLS and Limited, and traction and stability control for the Limited AWD.