Cadillac CTS 2012–2014 — technical service bulletin
Bulletin PI0748A · NHTSA communication 10190936 · issued Apr 26, 2021
Technical service bulletin
communication type
Equipment
component
2012–2014
model years
3
vehicle entries
Official summary
Some customers may comment on a water leak or wind noise coming from the passenger door window. The cause of this condition is an inner door belt reinforcement that was positioned too far outboard prior to it being welded into the door frame. This condition is specific to the passenger door only. This mis-positioned reinforcement causes the rear of the window regulator and the door glass to also be outboard, creating a gap between the glass and the B pillar seal.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.