Flash: Radio Frequency Hub Module (RFHM) Updates (08-087-22)

WARNING: This page is about the Charger GT, which is a different variant/trim than selected.

Publication date: 2022-04-15
Reference number: 08-087-22

FLASH: RADIO FREQUENCY HUB MODULE (RFHM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 08-087-22, Date of Issue: April 15, 2022

CHRYSLER:	2018 (LA) Dodge Challenger, (LD) Dodge Charger
GROUP:	08 - Electrical

OVERVIEW

This bulletin involves reprogramming the RFHM with the latest software available.

MODELS

MODELS CHART

2018	(LA)	Dodge Challenger
2018	(LD)	Dodge Charger

NOTE: This bulletin applies to vehicles within the following markets/countries: North America.

NOTE: This bulletin applies to vehicles equipped with:

6.2L Supercharged HEMI V8 SRT Engine (Sales Code ESD).
6.4L V8 SRT HEMI Engine (Sales Code ESH).
6.4L V8 SRT HEMI MDS Engine (Sales Code ESG).

SYMPTOM/CONDITION

The customer may describe that they heard about these vehicles that can be unlawfully driven away by thieves when they are able to program new key fobs through the RFHM.

Software enhancement include:

Update to the RFHM software to prevent hackers from programming their own key fob to the vehicle.
This is intended to deter an unwanted drive off of the vehicle without the customers knowledge.

WARNING: Performing this RFHM update will prevent additional key fob programming and this must be communicated to the customer before performing this RFHM update. If additional keys are required by the customer after this RFHM update is performed the replacement of the RFHM is required and must be at a previous SW level.

DIAGNOSIS

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/Service Library, verify all related systems are functioning as designed. If Diagnostic Trouble Codes (DTCs) or symptom conditions, other than the ones listed above are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.

If the customer requests the anti-theft enhancement, perform the repair procedure.

REPAIR PROCEDURE

NOTE: Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.

NOTE: If this flash process is interrupted/aborted, the flash should be restarted.

Reprogram the RFHM with the latest software. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the application' "HELP" tab.
Clear all DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

NOTE: Please submit claims for this TSB under claim type S.

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
18-Y8-41-82	Module, Radio Frequency Hub (RFHM) - Reprogram (0 - Introduction)	6 - Electrical and Body Systems	0.2 Hrs.

NOTE: The expected completion time for the flash download portion of this procedure is approximately 3 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.

FAILURE CODE

The dealer must use failure code CC with this Technical Service Bulletin.

If the customer's concern matches the SYMPTOM/CONDITION identified in the Technical Service Bulletin, failure code CC is to be used.
When utilizing this failure code, the 3C's (customer's concern, cause and correction) must be provided for processing Technical Service Bulletin flash/reprogramming conditions.

FAILURE CODE CHART

CC	Customer Concern