2013-16 Buick Encore & 2015-16 Chevy Trax Trunk Lid: Why It Won't Open and How to Fix It

Key Symptoms of a Failing Trunk Lid

Problems with the trunk lid on a 2015-2016 Chevrolet Trax or 2013-2016 Buick Encore almost always relate to the components housed within it, rather than the metal shell itself unless it has been physically damaged.

Liftgate Will Not Open or Unlatch

This is the most common failure. You press the exterior release handle (the rubber touchpad located under the chrome or body-color trim piece), and nothing happens. You may or may not hear a faint click from the latch area. The root cause is almost always a failed liftgate release switch, which corrodes internally from water intrusion. In other cases, the latch actuator itself—the small motor that pulls the latch—can fail.

Liftgate Won't Stay Up

If the liftgate is heavy to lift or slowly drifts down after you open it, the gas-charged lift supports (struts) have worn out. This is a normal wear-and-tear item. The struts lose their internal pressure over time and can no longer support the weight of the door. This is a simple and inexpensive fix.

"Trunk Open" Warning Light on Dash

If the dashboard displays a warning that the liftgate is open even when it is securely shut, the problem lies within the latch assembly. The sensor that detects the open/closed state is integrated into the latch. This can be caused by a faulty sensor or a misaligned latch that isn't fully engaging with the striker on the body of the vehicle.

Visible Damage or Rust

Aside from collision damage, rust can form around the window seal, the license plate mounting area, and along the bottom seam of the liftgate. This is more common in areas that use road salt in the winter. Minor surface rust can be repaired, but significant corrosion can compromise the structural integrity of the panel.

Known Issues for 2013-2016 Encore & 2015-2016 Trax

Corroding Liftgate Release Switch

The single most prevalent issue for this liftgate is the failure of the exterior release switch due to water damage. The switch is not perfectly sealed, allowing moisture to seep in over time and corrode the internal electrical contacts. This prevents the signal from being sent to the latch actuator. While GM has issued recalls for a similar issue on other vehicles like Silverado and Sierra trucks, there is no specific NHTSA recall campaign for this part on the Trax and Encore for these model years. The fix is to replace the switch, which is an inexpensive part.

Buyer's Guide: What to Check Before Purchasing a Used Trunk Lid

Buying a complete, used OEM trunk lid is often the most cost-effective solution after a collision. Because the 2015-2016 Trax and 2013-2016 Encore share the same platform, their liftgates are interchangeable, widening your options. Here’s what to inspect.

1. Inspect for Hidden Bodywork

Look at the reflection in the paint from an angle. Wavy or distorted reflections can indicate that the panel has been repaired with body filler (Bondo). Run a refrigerator magnet along the lower edges and flat areas; if it fails to stick in certain spots, it confirms the presence of filler. Avoid panels with extensive filler, as it can crack or bubble over time.

2. Check for Rust

Thoroughly inspect the bottom edge and the area around the rear window glass and license plate lights. Peel back the rubber weatherstripping slightly if possible to check for rust underneath. Surface rust is treatable, but deep, flaking rust means the panel should be avoided.

3. Verify Included Components

A used trunk lid can come as a bare shell or as a complete assembly. A good value assembly should include:

• Rear Glass (not cracked or deeply scratched)
• Wiring Harness (not cut or damaged)
• Latch and Release Switch
• Rear-View Camera (if your vehicle is equipped with one)
• Interior Trim Panel

4. Match the Camera Option

Ensure the donor liftgate has the same rear-view camera configuration as your vehicle. A liftgate from a vehicle without a camera will not have the correct mounting holes or wiring harness for you to add one easily.

Cost Comparison

Replacement Overview

Difficulty: 3 out of 5 (Full Assembly); 2 out of 5 (Latch/Switch); 1 out of 5 (Struts)

Replacing components like the latch, release switch, or struts is a straightforward DIY task. It involves removing the interior trim panel (held by clips), disconnecting the electrical connectors, and unbolting the component. Replacing the lift supports is even easier and typically requires only a small flathead screwdriver to release the retaining clips.

A full liftgate replacement requires a second person to hold the lid while you disconnect the wiring harness, washer fluid hose, and the four hinge bolts. Alignment is critical during installation to ensure even gaps and proper sealing.

Frequently Asked Questions (FAQ)