My '09 CTS was built in late May 2009, delivered to me in early June. I soon discovered that the front and rear footwell ambient light applications were deleted in production by Cadillac/GM as cost-cutting measures during the 2009 CTS model year. I didn't really care that the rear footwells on my '09 car lost the ambient light feature, but I wasn't pleased about the loss of the front footwell ambient lights. I therefore decided to order the Front Footwell Lamp Kit, p/n 19170639. I picked up the kit today, at a GM dealer in north-east Michigan.
When I arrived home today I decided to go ahead and install the lamp kit. I'm happy to report that it literally took 5 minutes per side to install each lamp assy at the driver side and passenger side footwell locations. It was an easy install - the provision was still there in the vehicle for each lamp assy to simply plug in. The kit ended up costing about $50.00, so I guess that wasn't too bad, all things considered. I really like the results.
For those who may be interested.. I have scanned, uploaded (to www.keepandshare.com) and attached here a link to a .pdf file of the GM SPO instructions for installation of the Ambient Front Foot Well Light Kit for the '2008+ CTS. Hopefully this will be helpful to those here contemplating the application.
Here's the link: http://www.keepandshare.com/doc/view...d=1391291&da=y