Sunroof Housing Rear Drain Hose Replacement (Coupe Left Side)

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Sunroof Housing Rear Drain Hose (Coupe Left Side)

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure It is only necessary to lower the headliner. Only do those step in headliner replacement that will lower the headliner enough to gain access to the part. Refer to Headlining Trim Panel Replacement (Coupe) . Remove the rear compartment side trim panel. Refer to Rear Compartment Side Trim Replacement - Left Side (Coupe) , or Rear Compartment Side Trim Replacement - Right Side (Coupe) . NOTE: It is not necessary to completely remove the rear compartment side trim panels. Reposition side trim panels to allow access to the drain hose retainers and grommet.
1	Sunroof Housing Rear Drain Hose Connector Procedure Grasp the sunroof drain hose connector and pull outward releasing it from the sunroof frame spigot. NOTE: If the drain hoses are retained with a tie strap it will be necessary to replace when reinstalling.
2	Sunroof Housing Rear Drain Hose Retainer (Qty: 3) Procedure Squeeze the retainer and unclip the retainer from the drain hose.
3	Sunroof Housing Rear Drain Hose Grommet Procedure Grasp the grommet and pull inward releasing it from the inner quarter panel.
4	Sunroof Housing Rear Drain Hose Procedure When installing the drain hose, ensure that the routing of the end of the drain hose and grommet are installed through the access hole in the quarter panel to prevent rear compartment water leaks. Install the retainers that secure the drain hose to the inner quarter panel. Water test vehicle to ensure No leaks.