# Service bulletin 2400714

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: 10221011
- Published by NHTSA: 2022\-09\-26
- Manufacturer's number: 2400714
- Manufacturer's date: 2014\-09\-11
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM; PARKING BRAKE; VISIBILITY

## NHTSA's summary

Flash: Rear Defrost/Heated Mirror LED on HVAC Control Head Does Not Illuminate This bulletin involves selectively erasing and reprogramming the HVAC Module with new software. Customers may complain that the rear defrost/heated mirror LED indicator on the HVAC controller does not illuminate when the button is depressed.Updating the HVAC software will correct this condition.This issue typically occurs after performing the Proxi Configuration routine in the wiTECH Diagnostic Application. Updating the HVAC software will prevent this issue from occurring again in the future.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10221011-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10221011-9999.pdf)

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

## Components

Brakes, Electrical system, Glass, wipers and mirrors, Lighting, Parking brake

## Vehicles listed

- 2014 RAM PROMASTER

JSON: [/v1/bulletins/10221011](/v1/bulletins/10221011)

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