2019-2021 Subaru Forester Liftgate Module: Fixing a Beeping, Stuck Rear Door
This guide covers the common failures, a key service campaign for 2019 models, and why a simple battery disconnect might be the only fix your power liftgate needs.
- A dead or disconnected battery is a primary cause of liftgate failure; a simple reset by disconnecting the battery for 60 seconds often restores function.
- Many 2019 Foresters were eligible for a free replacement module under Subaru's service campaign WRJ-20R due to known issues.
- When buying a replacement, aim for the latest part number, 63350SJ007, as it supersedes all older, potentially less reliable versions.
- Dealer programming is NOT required for replacement, but you must manually re-register the gate's opening height after installation.
Symptoms of a Failing Liftgate Control Module
A faulty liftgate control module can cause a range of frustrating issues. Before assuming the module is bad, always check for two simple things first: ensure the Power Rear Gate disable switch (usually in the glove box or on the lower left dash) has not been accidentally pressed, and verify your vehicle's battery is fully charged and in good health. A weak battery is a common cause of erratic liftgate behavior.
- Three Beeps, No Movement: This is the most widely reported symptom. When you press any button to operate the liftgate, the vehicle beeps three times, but the gate does not move. This often happens after the vehicle's battery has been disconnected or has died.
- Liftgate is Completely Inoperative: The gate does not respond at all to the key fob, dashboard switch, or the button on the gate itself. There may be no beeping or other sounds.
- Intermittent Operation: The power liftgate works sometimes but fails at other times without a clear pattern.
- Gate Won't Latch or Unlatch: The module may fail to operate the electric latch, preventing the gate from locking securely or from releasing to open. In some cases, this can cause the gate to fly open while driving.
- Battery Drain: Some owners report that leaving the liftgate open for extended periods can drain the vehicle's battery, which in turn causes the module to stop working until it is reset.
Pro Tip: If your liftgate stops working after a dead battery, try a system reset before buying any parts. Disconnect the negative terminal from your vehicle's battery, wait for at least 60 seconds, and then reconnect it. This simple procedure forces the liftgate control module to reboot and often restores normal function.
Known Issues & Service Campaign for 2019 Forester
Subaru recognized issues with the power liftgate on early-production 2019 Foresters. In January 2021, the company initiated a service program (not a formal safety recall) to address the problem.
Service Program WRJ-20R
This service program applied to 58,467 Forester vehicles manufactured between July 4, 2018, and April 11, 2019. The reason cited was that the power rear gate might not function properly. Under this program, Subaru dealers would replace the original Power Rear Gate (PRG) Control Module with an improved part, free of charge. The replacement part for this campaign was specified as part number 63350SJ0079S. While this program has likely expired for most owners, it confirms that the original modules on these vehicles were prone to failure.
Buying a Used Liftgate Control Module
A used OEM module is an excellent, cost-effective alternative to a brand-new part. Since these modules are not high-wear items, a recycled unit from a reputable seller can provide the same performance as a new one. Here’s what to look for:
- Match the Part Number: The safest approach is to match your original part number exactly. However, Subaru updated this part several times. The latest part number, 63350SJ007, replaces all previous versions (ending in 001, 002, 003, etc.). If possible, purchasing the latest revision is recommended as it contains the most recent factory updates.
- Inspect for Damage: The module is located in the rear of the vehicle behind the trim panels. Check the used part for any signs of water intrusion, corrosion on the pins, or physical damage to the case or connectors. Do not buy a module that shows any signs of water damage.
- Verify the Source Vehicle: Ensure the used module comes from a 2019, 2020, or 2021 Subaru Forester to guarantee compatibility. While a module from another Subaru model might look identical, its internal software may be different.
Installation and Programming Requirements
Replacing the liftgate control module is a manageable DIY job for those comfortable removing interior trim panels. No special dealer-level programming or flashing is required.
Warning: Before beginning work, you must disconnect the negative battery terminal and wait at least 60 seconds. This prevents electrical shorts and helps reset the system.
- Access the Module: The module is located in the left rear cargo area, behind the quarter trim panel. You will need to remove the cargo floor, foam trays, and carefully pry off the plastic trim panels to access it.
- Swap the Module: The module is typically held in place by a few bolts or nuts. Disconnect the electrical connectors, unbolt the old module, and install the new one.
- Reconnect Battery & Initialize: After the new module is installed and all trim is back in place, reconnect the battery. The system is now reset.
- Register the Memory Height: Your custom opening height will be lost. You must re-register it. With the engine off, open the liftgate fully. Manually move it to your desired height. Then, press and hold the rearmost button on the bottom edge of the liftgate until you hear a confirmation beep (usually a short beep followed by a long one). The new height is now saved.
Cost Comparison
Prices can vary based on location and supplier, but here is a general estimate:
| Part Type | Estimated Cost |
|---|---|
| New OEM | $245 - $360 |
| New Aftermarket | Not commonly available |
| Used OEM | $75 - $150 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions (FAQ)
Does a used 2019-2021 Forester liftgate module need to be programmed by a dealer?
No, a dealer visit for programming is not required. However, you must perform a system reset by disconnecting the battery during installation and then re-register the memory height for the gate opening.
Why does my liftgate just beep three times and not open?
This is the most common symptom of a system fault. It often occurs after the vehicle's battery has died or been disconnected. The first step is to try a hard reset by disconnecting the negative battery cable for at least one minute before reconnecting it. If this doesn't work, the control module itself may have failed.
Can I open the power liftgate manually if it's broken?
Yes. If the power function fails, you should still be able to open the gate manually. You may need to press and hold the exterior release button for a few seconds to release the latch. If the gate is completely stuck closed, there is a manual release lever accessible from inside the vehicle through a small plastic cover on the interior liftgate trim panel.
Is a faulty liftgate module related to any recalls?
There are no formal safety recalls for this specific part. However, Subaru did issue a "Service Program" (WRJ-20R) for many 2019 Foresters to replace the module due to high failure rates. There is a separate recall for 2026 model year Foresters concerning the mechanical support brackets, which is a different issue.
Technical Specifications
OEM Part Numbers: 63350SJ001 63350SJ002 63350SJ003 63350SJ004 63350SJ005 63350SJ006 63350SJ007
Controls the Power Rear Gate (PRG) system. Located in the left rear quarter panel area.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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