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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10225294
Published by NHTSA2022-10-31
Manufacturer's number0816622
Manufacturer's date2022-08-27
NHTSA componentELECTRICAL 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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

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

Trouble codes named

P0563

Vehicles listed
RAM 15002022

Listing a model year does not mean every vehicle of it is concerned: the document says which.