Remote Trunk Release Not Working Due to Sway Bar

You press the button on your key fob or pull the trunk release lever inside your car, and nothing happens. The trunk stays shut. If you've been chasing down this problem and someone mentioned the sway bar as a possible cause, you're probably confused and maybe a little skeptical. How does a suspension component have anything to do with your trunk latch? It sounds unlikely, but the connection between a damaged or improperly installed sway bar and a non-functioning trunk release is more common than most drivers realize, especially on certain sedan and coupe models where the trunk mechanism sits close to rear suspension components.

Can a sway bar really cause your trunk release to stop working?

Yes, it can and here's why. The sway bar (also called an anti-roll bar) connects to your vehicle's rear suspension through sway bar links and bushings. On some vehicles, particularly certain older sedans and compact cars, the trunk latch assembly, trunk release cable, and related components sit in close proximity to the rear sway bar and its mounting points. If a sway bar link breaks, bends, or shifts out of position, it can physically interfere with the trunk release cable or latch mechanism. A corroded or damaged sway bar link that has separated may also shift and press against trunk-related wiring or mechanical parts in the trunk well area.

This isn't a problem that shows up in every car. It's model-specific, which is why many mechanics dismiss it at first. But if your trunk release worked fine before and stopped after suspension work, a pothole hit, or general aging of rear suspension parts, the sway bar connection deserves a closer look.

What exactly happens between the sway bar and the trunk latch?

The interference usually falls into one of these scenarios:

A broken or loose sway bar link moves out of its normal position and pushes against the trunk release cable that runs near the rear subframe or wheel well area.
A deteriorated sway bar bushing allows the bar to shift laterally, and the bar itself taps or rubs against the cable housing or wiring harness near the trunk area.
Aftermarket or incorrect sway bar links that are slightly longer or shorter than OEM specs change the geometry enough to create contact with nearby trunk components.
Accident damage or rust causes the sway bar end to bend toward the trunk latch assembly, creating a physical blockage or pulling the cable out of alignment.

In most cases, you won't see the problem just by popping the hood or glancing under the car. The interference often happens deep inside the rear body structure, where the trunk latch sits near the suspension mounting points.

How can you tell if the sway bar is the reason your trunk won't open?

Start with these diagnostic steps:

Test the trunk release multiple ways. Try the key fob remote, the interior trunk release button or lever, and the physical key in the trunk lock cylinder. If the key in the lock works but the remote and interior release don't, the problem is likely mechanical interference with the cable not an electrical issue.
Check for recent suspension work. Did anyone replace sway bar links, bushings, or do rear suspension repairs recently? Even a routine brake job on some models requires loosening or removing sway bar components, and a rushed reassembly can push things out of place.
Inspect the sway bar links visually. Look under the rear of the car at both sides. A healthy sway bar link should be straight, tightly bolted at both ends, and have intact rubber or polyurethane bushings. A broken, bent, or hanging link is a red flag. You can learn more about how to inspect sway bar links when your trunk latch malfunctions.
Listen for clunking sounds. A bad sway bar link often makes a clunking or rattling noise over bumps. If you hear this and your trunk release stopped working around the same time, the two issues are likely connected.
Feel the trunk release cable tension. Pull the interior trunk release lever and pay attention. If the lever feels loose or has no resistance at all, the cable may be disconnected, kinked, or jammed by something physically blocking its path like a shifted sway bar component.

Is it the sway bar or just a bad trunk release actuator?

This is where a lot of people waste money. The trunk release actuator (the small electric motor that triggers the latch when you press the remote) and the trunk latch assembly itself are common failure points on many vehicles. Before blaming the sway bar, rule out these electrical components first:

Check the trunk release fuse. A blown fuse is the simplest and cheapest fix. Look in your owner's manual for the fuse location.
Test for power at the actuator. With a multimeter, check if the actuator receives voltage when you press the trunk button on your key fob. If it gets power but doesn't move, the actuator is likely bad.
Inspect the wiring harness. Rodent damage, corrosion, or a pinched wire near the trunk hinge area can break the circuit.

If the electrical system checks out and you still can't open the trunk, the issue becomes mechanical. That's when the sway bar connection makes sense as the next thing to investigate. For a deeper look at this diagnosis path, you can read about diagnosing why your trunk won't open and how sway bar links play into it.

What are the most common mistakes people make with this problem?

Replacing the trunk actuator without checking mechanical interference first. Mechanics often default to replacing the latch or actuator because it's a straightforward fix. If the real problem is a physical blockage from the sway bar, the new part won't solve anything.

Ignoring suspension noise. Many drivers live with a clunking noise from the rear for months or years, not connecting it to other problems. If your trunk release stopped working and you've been hearing rear suspension noise, don't treat these as separate issues.

Installing cheap aftermarket sway bar links. Budget sway bar links sometimes have slightly different dimensions than OEM parts. Even a few millimeters of difference can mean the link sits in a slightly different position, potentially causing contact with nearby components. Stick with OEM or quality aftermarket brands when replacing suspension parts.

Forcing the trunk open. If the trunk won't release remotely, don't yank the interior lever hard or try to pry the trunk. You can damage the latch, bend the trunk lid, or break the cable entirely turning a diagnosable problem into an expensive body repair.

Overlooking the cable routing after suspension work. When sway bar links or bushings are replaced, the technician may inadvertently push the trunk release cable out of its routed path. Always verify cable routing after any rear suspension service.

What should you do next if you suspect the sway bar is involved?

If your trunk release has stopped working and you suspect the sway bar or its links are the cause, here's a practical approach:

Get the car on jack stands or a lift and inspect both rear sway bar links and bushings carefully. Look for broken links, missing bushings, bent components, or anything that looks out of position.
Trace the trunk release cable from the latch assembly to where it routes near the rear suspension. Look for signs of rubbing, pinching, or displacement.
Move the sway bar by hand (with the car safely supported). Excessive lateral movement or a bar that contacts nearby components confirms bushing failure or a link problem.
Replace damaged sway bar links or bushings with correct OEM-spec parts. This alone often resolves the trunk release issue once the interference is removed.
Re-route the trunk release cable if it was pushed out of its proper path. Make sure it sits in its clips and guides with proper clearance from all suspension components.

If you want a full walkthrough on the relationship between these components, our page on remote trunk release problems linked to sway bar issues covers the repair process in more detail.

Quick checklist to diagnose and fix the problem

✅ Test trunk release with key fob, interior lever, and physical key
✅ Check the trunk release fuse and actuator for power
✅ Inspect rear sway bar links for damage, looseness, or bending
✅ Check sway bar bushings for deterioration or missing material
✅ Trace trunk release cable for pinching, rubbing, or disconnection near suspension
✅ Verify correct sway bar link part numbers match OEM specifications
✅ After any suspension repair, confirm trunk release works before closing up

One last tip: If you're dealing with this issue and your car is still under warranty or was recently serviced at a shop, document the problem with photos before any repairs. If incorrect sway bar link installation caused the trunk release to fail, the shop should cover the correction at no cost to you.