# Service bulletin 0816622

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: 10225294
- Published by NHTSA: 2022\-10\-31
- Manufacturer's number: 0816622
- Manufacturer's date: 2022\-08\-27
- NHTSA component: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:SENSOR/THERMOSTAT; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE \(HPCU\):SOFTWARE

## NHTSA's summary

Flash: Hybrid Control Processor \(HCP\) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) and/or Battery Charge Warning Light illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\). P0563\-00 \- System Voltage High.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225294-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225294-9999.pdf)

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

## Components

Electrical system, Hybrid and electric drive, High\-voltage battery

## Trouble codes named

P0563

## Vehicles listed

- 2022 RAM 1500

JSON: [/v1/bulletins/10225294](/v1/bulletins/10225294)

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