These vehicles are being recalled because the headlamp driver module (HDM) can overheat and fail. This will cause the headlights and daytime running lights to stop working. Loss of this lighting will affect the ability of the driver to see the road and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash. The remedy for this problem is still under development and not yet available.
2008 Isuzu Ascender Recalls
Headlights & Daytime Running Lights
Electrical & Lights,November 26, 2014
RepairPal Expert Overview: