This Preliminary Information communication provides information to the technician with power folding top diagnostic tips. Tech should review the last Preliminary Information per the customers concern. Bulletin 12052: Customer Satisfaction - Convertible Top Enhancements should be reviewed. The list of Preliminary Information are PI0351: Folding Top Tonneau Cover - Installation of Body Side Lower Trim Panel Spacer During Pre-Delivery Inspection, PI0378: Information on Convertible Top Operation Below 0° C (32° F) in Snow, Rain or After Wet Conditions - Ice Formation in Water Management Bag, PI0379: Information on Location of Convertible Specific Manual Trunk Release, PI0397: Water Leak in Rear Compartment/Trunk - Convertible Top Water Management Bag Repair, PI0424: Rattle, Creak or Popping Noise in Rear Floor Area, PI0449: Rattle from Rear Compartment Area when Driving with Convertible Top in Closed (Up) Position, PI0509: Convertible Top Will Not Open/Retract, Clear Top Storage Area Message Displayed in Driver Information Center, PI0520: Top Not Secure Message Displayed in Driver Information Center, PI0525: Folding Top Striker Assembly Plastic Insert Loose/Missing, PI0756: Retrofit Procedure for New Corded Folding Top Cover Installation to Original Design Frame, PIC5449: Convertible Roof Cloth Sags At Rear / Large Gap Between Number 5 Bow And Rear Panel, PIC5458: Water Leak In Rear Floor Area, PIC5527: Headliner Trim Cloth Pulls Loose From Rear Window Retainer, PIC5553: Creak Or Squeak Noise From Rear Of Folding Top, PIC5605: Folding Top Pulls Loose From Rear Side Rail, PIC5608: Oil Canning Or Pop Noise In Rear Seat Area, PIC5609: Side Tension Cable Visible When Top Is In Stowage Compartment, and PIC5724: Side Tension Cables Are Visible After Folding Top Replacement, Diagnostic Tip - Convertible Roof Rivet Replacement.