Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 Jeep Compass RedFACTORY OEM SERVICE PROCEDURE
Radio Frequency Hub (RFH) Module
RADIO FREQUENCY HUB (RFH) MODULE
| Refer to COMPONENT INDEX . |
- Receives the input request to start from the ignition.
- Energizes the key fob transponder in order to read it.
- Sends a random code to the transponder and in return, receives a crypt code from the transponder.
- Validates the key fob using LF antennas.
- Validates that the brake is engaged.
- Sends a request to the BCM to change the ignition state.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.