# Service bulletin 21B09\-S1

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: 10216851
- Published by NHTSA: 2022\-08\-02
- Manufacturer's number: 21B09\-S1
- Manufacturer's date: 2022\-07\-28
- NHTSA component: COMMUNICATION:MANUFACTURER TELEMATICS

## NHTSA's summary

Certain 2014\-2020 Model Year Multiple Vehicle Lines \- 3G Telematics Control Unit to 4G Upgrade Kit. The North America 3G cellular service began decommissioning in August 2021 and a complete shutdown of the 3G network took place in February 2022. Vehicles on the road equipped with a 3G telematics control unit \(TCU\) / embedded modem will lose mobile app functionality/connectivity.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10216851-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10216851-9999.pdf)

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

## Vehicles listed

- 2014 to 2017 FORD C\-MAX ENERGI
- 2016 to 2017 FORD FOCUS ELECTRIC
- 2014 to 2020 FORD FUSION ENERGI
- 2017 LINCOLN CONTINENTAL
- 2015 to 2017 LINCOLN MKC
- 2016 to 2017 LINCOLN MKX
- 2015 to 2017 LINCOLN MKZ
- 2015 to 2017 LINCOLN MKZ HYBRID

JSON: [/v1/bulletins/10216851](/v1/bulletins/10216851)

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