"In the event your Cadillac CT6 is damaged, we want to ensure that you have access to a repair facility that meets our standards and is equipped to properly repair your vehicle," Cadillac said.
Cadillac expects to have approximately 100-200 dealers and independent body shops ready to repair the CT6 when it goes on sale in early 2016.
Sixty-four percent of the CT6 body structure is aluminum, including all exterior body panels.
Cadillac dealerships and service technicians will be required to learn repair techniques that differ from those performed on traditional steel-bodied vehicles.
"The Cadillac Aluminum Repair Network will work to protect your vehicle's integrity, with the goal of restoring it as close to pre-collision condition as possible," Cadillac said.
Owners can use GM's OnStar service or roadside assistance to be directed to the nearest Cadillac Aluminum Repair Network.
The facilities will undergo annual verification inspections to ensure technicians are properly trained, required equipment is in place and Cadillac-recommended repair procedures are followed.
Aluminum-intensive vehicles, including the 2015-'16 Ford F-150 pickup truck, are beginning to be more popular with car shoppers. But they require special care when it comes to repairs and may be more expensive to fix.
The repairs took longer and cost 26 percent more than they did on a 2014 F-150 made of steel, the report said.
"From a simple bolt-on parts replacement to a more involved removal and installation of entire body panels, fixing the aluminum F-150 is more expensive than repairing a steel-bodied F-150," said David Zuby, IIHS chief research officer, in a statement.
Ford disputed the results of the report.
Edmunds says: Luxury shoppers concerned about CT6 repairs get some reassuring news from Cadillac and its dealers.