# Service bulletin B520723

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: 10239607
- Published by NHTSA: 2023\-07\-24
- Manufacturer's number: B520723
- Manufacturer's date: 2023\-06\-01
- NHTSA component: SEATS

## NHTSA's summary

The front seat heating does not heat up after vehicle departure with the climate control in the automatic mode.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239607-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239607-9999.pdf)

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

## Components

Seats

## Vehicles listed

- 2023 BMW 740I
- 2023 BMW 760I
- 2023 BMW I7
- 2022 to 2023 BMW X1

## Recalls for the same vehicles and component

- [23V414000](/recalls/nhtsa/23V414000.md), 2023-06-08: SEATS
- [2023214](/recalls/tc/2023214.md), 2023-04-12: Seats And Restraints
- [23V050000](/recalls/nhtsa/23V050000.md), 2023-02-03: SEATS; AIR BAGS

## Other bulletins for the same vehicles and component

- [B520224](/bulletins/10252015.md), 2024-04-01, Service bulletin: SEAT BELTS; SEATS; AIR BAGS. The seat initialization and memory has been lost; Or Repeat failure of seat initialization after completing the test module via ISTA. One or both of the following check control messages \(CCM\) may be present: CCM 108 “Driver restraint system” CCM 109 “Passenger restraint system”
- [B521723](/bulletins/10249023.md), 2024-02-01, Service bulletin: ELECTRICAL SYSTEM; SEATS. Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown.
- [B521723](/bulletins/10247576.md), 2024-01-03, Service bulletin: SEATS. Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative .During the vehicle test, the seat module does not respond. The power supply fuse for the seat module is found to have blown.
- [B520121](/bulletins/10242694.md), 2023-09-25, Service bulletin: SEATS. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted.
- [B520723](/bulletins/10235189.md), 2023-05-01, Service bulletin: SEATS. The front seat heating does not heat up after vehicle departure with the climate control in the automatic mode.
- [B520922](/bulletins/10228431.md), 2023-01-03, Service bulletin: SEATS. When returning the 2nd row seat 60/40 seat from Easy\-Entry: The seat stops moving before reaching the final home position. A Check Control Message \(CCM\) appears alerting the customer that the seat is not locked.

JSON: [/v1/bulletins/10239607](/v1/bulletins/10239607)

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