# Service bulletin MI21\-13A

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: 10205938
- Published by NHTSA: 2022\-01\-04
- Manufacturer's number: MI21\-13A
- Manufacturer's date: 2021\-12\-09
- NHTSA component: EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

## NHTSA's summary

An automated test is available to check the big HVAC superheat from the driver seat. This test is controlled by Multiplex, eliminating interventions and the need to take measures on the vehicle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205938-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205938-9999.pdf)

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

## Components

Equipment and accessories, Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2019 to 2020 PREVOST H3
- 2018 to 2019 PREVOST H3\-41
- 2021 to 2022 PREVOST H3\-41
- 2018 to 2022 PREVOST H3\-45
- 2018 to 2022 PREVOST H3\-45 VIP
- 2018 to 2019 PREVOST H3\-VIP
- 2018 to 2020 PREVOST X3
- 2020 to 2022 PREVOST X3 COACH
- 2020 to 2022 PREVOST X3 COM
- 2018 to 2019 PREVOST X3 COMMUTER
- 2018 to 2022 PREVOST X3\-45
- 2018 to 2019 PREVOST X3\-45 COMMUTER
- 2021 to 2022 PREVOST X3\-45 COMMUTER
- 2018 to 2022 PREVOST X3\-45 VIP
- 2018 PREVOST X3\-45 VIP ENTERTAINER
- 2018 to 2019 PREVOST X3VIP
- 2018 PREVOST XL2

JSON: [/v1/bulletins/10205938](/v1/bulletins/10205938)

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