# 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.

- Type: Service bulletin
- NHTSA id: 10201271
- Published by NHTSA: 2021\-09\-13
- Manufacturer's number: PIC6427B
- Manufacturer's date: 2021\-06\-08
- NHTSA component: SEATS: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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201271-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201271-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Seats

## Vehicles listed

- 2021 CADILLAC CT4

## Other bulletins for the same vehicles and component

- [24\-NA\-239](/bulletins/11013269.md), 2025-01-30, Service bulletin: ELECTRICAL SYSTEM; SEATS; STRUCTURE:BODY; STEERING; ENGINE. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
- [PIT6180](/bulletins/11006317.md), 2024-08-13, Service bulletin: SEATS. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
- [06\-00\-89\-029V](/bulletins/11000158.md), 2024-05-16, Service bulletin: SEATS; UNKNOWN OR OTHER. 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\-109](/bulletins/10239119.md), 2023-07-14, Service bulletin: ELECTRICAL SYSTEM; AIR BAGS; SEATS. This service bulletin provides a procedure to correct a customer concern of Service Restraint System and/or Airbag Readiness Message Displayed \- DTCs B15DF / B15E3.
- [21NA131](/bulletins/10214209.md), 2022-06-21, Service bulletin: SEATS:FRONT ASSEMBLY:POWER ADJUST; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.
- [21NA131](/bulletins/10200134.md), 2021-08-09, Service bulletin: SEATS:FRONT ASSEMBLY:POWER ADJUST; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.

JSON: [/v1/bulletins/10201271](/v1/bulletins/10201271)

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