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Service bulletin PIC6427B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10201271
Published by NHTSA2021-09-13
Manufacturer's numberPIC6427B
Manufacturer's date2021-06-08
NHTSA componentSEATS:FRONT ASSEMBLY:POWER ADJUST

NHTSA's summary

This Preliminary information communicates that some vehicles may have been built with missing circuits to the drivers seat haptic motors. Engineering is aware of the issue and a Bulletin will be released in the future.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Seats

Vehicles listed
CADILLAC CT42021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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PIT61802024-08-13. Service bulletin. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
06-00-89-029V2024-05-16. Service bulletin. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
23-NA-1092023-07-14. Service bulletin. This service bulletin provides a procedure to correct a customer concern of Service Restraint System and/or Airbag Readiness Message Displayed - DTCs B15DF / B15E3.
21NA1312022-06-21. Service bulletin. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.
21NA1312021-08-09. Service bulletin. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.