2013-2018 Ford C-MAX Power Liftgate Actuator Failures and Fixes

Symptoms of a Failing Power Liftgate Actuator

When the power liftgate actuators on a Ford C-MAX begin to fail, you'll notice several distinct symptoms. Because the system relies on two motors working together, a problem with one can affect the entire operation.

• Liftgate Won't Open or Close: The most obvious sign is the liftgate failing to respond when you press the button on the key fob, dashboard, or the hatch itself. You might hear a click or a brief hum from the motor, but no movement.
• Slow or Strained Movement: The liftgate may open or close much slower than usual, or it may seem to struggle. This can indicate a weak motor or failing internal gas struts.
• Unusual Noises: Grinding, clicking, or popping sounds during operation are clear indicators of a mechanical problem inside one or both of the actuators.
• Liftgate Drifting Down: If the liftgate opens but then slowly drifts down or won't stay fully open, it's often a sign that the internal gas struts have lost pressure. This is especially noticeable when parked on an incline.
• Partial Operation: The hatch might open or close part-way and then stop or reverse direction. This can be caused by a faulty motor, a problem with the pinch sensors, or a loss of position calibration.
• "Liftgate Ajar" Warning Light: If the liftgate doesn't close and latch completely, you may see a warning light on your dashboard. This can be a latch issue or a problem with the actuators not pulling the hatch in fully.
• Uncommanded Opening/Closing: In some cases, owners have reported the liftgate opening on its own, even when the vehicle is parked and locked. This can be caused by a faulty switch, a malfunctioning hands-free sensor, or an issue with the control module.

Known Issues, TSBs, and Recalls

While there are no specific recalls for the liftgate actuators themselves, several Technical Service Bulletins (TSBs) and related recalls affect the overall liftgate system on the 2013-2018 C-MAX.

• TSB 14-0070: This bulletin addresses issues where the "Liftgate Ajar" light stays on or the power liftgate doesn't pull itself fully closed (cinch). This points to a problem with the latching mechanism, which works in conjunction with the motors.
• TSB 13-5-6: For 2013 models, this TSB addresses the hands-free liftgate feature becoming inoperative after the vehicle has been locked for a few minutes. The fix involves reprogramming the Rear Gate Trunk Module (RGTM).
• TSB 12-12-6: An earlier TSB for 2013 models also addresses a false "liftgate ajar" warning and a loss of the power close function, pointing to an adjustment of the stop bumpers.
• Recall 16S30 (NHTSA 16V643): This recall was for faulty door latches on 2013-2015 C-MAX models, which could prevent doors from closing securely. While not the liftgate latch, it highlights potential latching system issues on vehicles from this era.

Programming and Calibration Requirements

After installing new power liftgate actuators, a calibration procedure is required. This process, often called initialization, teaches the Rear Gate Trunk Module (RGTM) the fully open and fully closed positions of the hatch. Without this step, the liftgate may not operate correctly, open to the wrong height, or fail to close and latch properly.

You can often perform a simple recalibration yourself. Manually move the liftgate to the desired maximum opening height. Then, press and hold the close button located on the liftgate itself for several seconds until you hear a beep or chime. This sets the new open position 🎬 Watch: A quick walkthrough on setting the liftgate height in the module's memory.

In some cases, particularly after a battery disconnect or if the system is malfunctioning, a more thorough reset may be needed. This can sometimes be accomplished by disconnecting the battery or pulling the specific liftgate fuse 🎬 See this guide for resetting the liftgate control module for at least 20 seconds to reset the module. However, for persistent issues or after replacing the module itself, a diagnostic scan tool may be required to perform the initialization procedure.

Buying a Used Trunk Lid Pull Down Motor

Purchasing a used set of OEM power liftgate actuators can be a cost-effective solution. However, it's important to inspect them carefully to ensure you're getting a quality part.

• Buy as a Matched Pair: These actuators work together and wear at a similar rate. It is highly recommended to replace both the left and right units at the same time with a pair from the same donor vehicle to ensure balanced operation and longevity.
• Check for Physical Damage: Inspect the actuator bodies for cracks, dents, or signs of being bent. Check the electrical connectors for corrosion or broken pins.
• Verify Compatibility: Ensure the parts came from a 2013-2018 Ford C-MAX that was originally equipped with a power liftgate. The actuators for a manual liftgate are simple gas struts and are not interchangeable.
• Mileage Considerations: Lower mileage is always better, as these are both mechanical and electronic parts that wear over time. Look for parts from a vehicle with under 100,000 miles if possible.
• Why Used OEM is a Good Choice: Used original Ford parts often have better build quality and durability than inexpensive aftermarket alternatives. The motors, gears, and electronic components were designed specifically for your vehicle's system, ensuring proper fit and function.

Cost Comparison

The cost of replacing power liftgate actuators can vary significantly depending on the source of the parts and labor rates.

Frequently Asked Questions (FAQ)