After having my front bumper replaced, my auto start no longer works. All of the other remote functions do, door locks and lift gate. I can't find a service manual, so I'm in the dark. Anyone have any ideas?

 

With work having been done on the front bumper, I would look at the hood latch. I believe the hood ajar sensor is part of the hood latch and may have been unplugged or damaged.

 

In addition to the hood latch, make sure you have no check engine lights on. Any codes will disable the auto start.

 

Found it unplugged. Thanks for the input. I was thinking something like that. Does anyone know where I can get a factory service manual?

 

Don't know about a "Factory" service manual, but I have been using a Haynes manual for the Dodge Durango (2004-2009) and it comes close for the most part. Manual # 30023. You will see some differences due to the models, but does give you the basics for working on the Aspen.