# Service bulletin PIT5550B

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: 10149054
- Published by NHTSA: 2018\-11\-26
- Manufacturer's number: PIT5550B
- Manufacturer's date: 2018\-10\-29
- NHTSA component: SEATS:MID/REAR ASSEMBLY; SEATS

## NHTSA's summary

This Preliminary information communicates that an inoperative third row folding seat back may not fold down or up. This information advises dealers on how the seat functions and also a common area where an open circuit may be found between the third row seat module and the seat position sensor. It provides repair instructions if a concern is found with the circuits between the third row folding seat module and the seat back position sensor, as well as advising the dealer to look for bent/damaged seat recline mechanisms.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149054-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149054-0001.pdf)

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

## Components

Seats

## Vehicles listed

- 2015 to 2019 CADILLAC ESCALADE
- 2015 to 2019 CHEVROLET SUBURBAN
- 2015 to 2019 CHEVROLET TAHOE
- 2015 to 2018 GMC YUKON
- 2019 GMC YUKON XL

## Recalls for the same vehicles and component

- [2021212](/recalls/tc/2021212.md), 2021-04-09: Seats And Restraints
- [2018535](/recalls/tc/2018535.md), 2018-09-26: Seats And Restraints
- [2018233](/recalls/tc/2018233.md), 2018-05-04: Seats And Restraints
- [2014437](/recalls/tc/2014437.md), 2014-10-07: Seats And Restraints

## Other bulletins for the same vehicles and component

- [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.
- [PIT5284A](/bulletins/10245977.md), 2023-12-04, Service bulletin: SEATS. Rattle Noise From Second Row Seat.
- [PIT5284](/bulletins/10245976.md), 2023-12-04, Service bulletin: SEATS. Rattle Noise From Second Row Seat.
- [17NA308](/bulletins/10205045.md), 2021-12-20, Service bulletin: SEATS. This technical bulletin provides repair information to correct a customer concern of carpet damage, seat mounting stud wear through, hole in second row \(Intermediate\) carpet.
- [PIT5745](/bulletins/10178303.md), 2020-08-10, Service bulletin: ELECTRICAL SYSTEM; SEATS. This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.
- [17NA308](/bulletins/10178254.md), 2020-08-10, Service bulletin: EQUIPMENT; SEATS. This technical bulletin provides repair information to correct a customer concern of carpet damage, seat mounting stud wear through, hole in second row \(Intermediate\) carpet.
- [N192285050](/bulletins/10172670.md), 2020-03-23, Service bulletin: SEATS; EQUIPMENT ADAPTIVE/MOBILITY. Customer Satisfaction Program \- Certain vehicles that had the front passenger seat cushion frame previously replaced, may not have had the adjuster stops transferred and are missing on the replacement part. The front passenger seat may be in a position beyond the occupant design travel range.Dealers are to inspect the front passenger seat tracks for the presence of both adjuster stops and install missing adjuster stops if necessary.
- [PIT5434D](/bulletins/10170426.md), 2020-01-21, Service bulletin: SEATS. This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information. Always, perform and refer to Service Information for the latest diagnostic information and procedures.
- [18NA377](/bulletins/10160120.md), 2019-05-20, Service bulletin: SEATS. This technical bulletin provides repair information to correct a customer concern of front seat lateral movement and/or click type noise while driving.

JSON: [/v1/bulletins/10149054](/v1/bulletins/10149054)

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