2009-2014 Hyundai Genesis Park Assist Module: Fixing Sensor Faults & Programming Issues

Symptoms of a Failing Park Assist Module

When the Park Assist Control Module in a 2009-2014 Hyundai Genesis begins to fail, you'll notice issues with the parking sensor system. However, it's important to remember that faulty sensors or wiring can cause identical symptoms. Always check the sensors and their connections before condemning the module.

• "Service Park Assist" Message: The most common sign is a warning message appearing on the instrument cluster display, such as "Check Parking Assist." This indicates the system has detected a fault and has been disabled.
• System is Completely Inoperative: The system does not activate at all when you put the car in reverse. You won't hear the initial beep, and there will be no warning sounds as you approach an object.
• Constant or False Beeping: The system may emit a constant, solid tone as soon as it's activated, or it might beep erratically even when there are no obstacles nearby. This can sometimes be caused by a single faulty sensor sending a bad signal to the module.
• Intermittent Functionality: The system works sometimes but not others. This can point to a failing module, but is also a classic sign of a loose wiring connection or a sensor that is beginning to fail.

Common Diagnostic Trouble Codes (DTCs)

A professional scan tool that can read Body Control Module (BCM) codes is necessary for proper diagnosis. While generic code readers may not show these, a more advanced tool might find the following:

• B1214 - B1217: These codes typically point to failures in specific park assist sensors. Diagnosing which sensor is faulty can help you avoid replacing the entire module unnecessarily.
• B1602 (CAN Error) / B1603 (CAN Communication Bus Off): These are communication codes. If the park assist module can no longer communicate with the vehicle's other computer systems, it may be due to an internal failure of the module or a wiring issue leading to it.

Known Issues, TSBs, and Recalls

As of mid-2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from Hyundai or the NHTSA concerning the Park Assist Control Module for the 2009-2014 Genesis sedan in the North American market. Recalls found online for Hyundai "Smart Parking Assist" apply to much newer models (2020 and later) and refer to a different, more advanced self-parking system. These should not be confused with the sensor-based alert system in the 2009-2014 Genesis.

Buying a Used Park Assist Control Module

This is the most critical section for anyone replacing this part. Getting the wrong module will result in it not working. Follow these steps carefully.

1. Verify Your EXACT Part Number

There are two primary park assist modules for the 2009-2014 Genesis, and they are NOT interchangeable. You must remove your original module to read the part number printed on its label. The module is located inside the trunk, behind the trunk liner on either the driver's (LH) or passenger's (RH) side rear quarter panel.

• Part Number 95770-3M100: This module is typically for Genesis models equipped with both parking sensors and a backup camera system. It is often described as the "Unit Assembly Back Blind."
• Part Number 95700-3M000 (or its successor 95700-3M001): This module is typically for models with the audible parking sensor system but without the integrated backup camera. It is described as the "Module Assembly-Front Back Waring."

2. Physical Inspection

When buying a used module, inspect it for:

• No Corrosion: Check the pins in the electrical connectors for any green or white crusty buildup. Water intrusion is a common cause of failure for electronics located in the trunk.
• Intact Connectors: Ensure the plastic surrounding the connector pins is not cracked or broken.
• Undamaged Casing: Look for cracks or signs that the module's case has been pried open.

3. Programming and Installation

While not definitively confirmed by Hyundai service documents, many used parts sellers indicate that this module may require programming to the vehicle. This is a common procedure for modern vehicle electronics to ensure all systems can communicate correctly.

• What this means: After installing the replacement module, the park assist system may not function until it is coded to your car's VIN.
• Who can do it: This programming typically requires a trip to a Hyundai dealership or a well-equipped independent repair shop with advanced diagnostic tools. Most DIY-level OBD-II scanners cannot perform this function.
• Recommendation: Be prepared for the potential added cost and time of having the module programmed after installation.

Replacement Cost Breakdown

Prices can vary based on your location and the supplier. The cost of programming, if needed, is an additional expense.

Frequently Asked Questions (FAQ)