How to Open Your Car Trunk When the Latch and Remote Both Fail

You walk to your car, press the trunk button on your key fob, nothing happens. You try the manual latch inside the cabin, and it's stuck too. Now you're standing in a parking lot with groceries, luggage, or something you really need locked inside. When both your remote and trunk latch stop working at the same time, it feels like you're out of options. But you're not. There are several ways to get that trunk open without calling a tow truck, and most of them don't require any special tools.

This guide covers practical methods real people use when their trunk won't open, why both systems fail together, and what to do next so it doesn't happen again.

Why Would Both the Trunk Latch and Remote Fail at the Same Time?

It might seem like bad luck, but there are common reasons both systems go out together. Understanding the cause helps you pick the right fix.

Dead key fob battery: If your fob battery is dead, the remote won't send a signal. On some vehicles, the interior trunk release button also depends on the fob being detected inside the car.
Blown fuse: A single fuse can control both the remote receiver and the electronic trunk latch. One blown fuse can disable both functions at once.
Broken trunk latch mechanism: The latch itself can jam or break from wear, rust, or a collision. Even if the remote sends a signal, the latch won't release.
Wiring damage: Rodents, moisture, or worn insulation can damage the wiring between the trunk lock actuator and the cabin controls.
Child safety lock or valet mode: Some cars have a valet mode or trunk lockout switch that disables the trunk release from inside the cabin. You might have turned it on without realizing.

If your key fob stopped opening the trunk, start by checking the fob battery before assuming the worst.

Can You Reach the Trunk Through the Back Seat?

Many sedans, coupes, and some SUVs have fold-down rear seats or a small pass-through panel that opens into the trunk. This is often the fastest way in.

Push the front seats forward to give yourself room.
Look for a release lever, strap, or latch on the top of the rear seatback. It's usually near the headrest or shoulder area.
Pull or push the release and fold the seat forward.
Crawl through or reach in to grab your items, or manually pop the trunk lid from inside.

If you can't find a release, check your owner's manual. Some vehicles require you to pull a cable or use the trunk key to unlock the seat pass-through.

For vehicles where the seats don't fold, you may need to try other emergency trunk access methods from inside the cabin.

What About the Physical Key Hidden in Your Key Fob?

Most modern key fobs contain a physical backup key inside. Many drivers never use it or even know it's there.

Look for a small sliding switch or button on your fob.
Slide or press it to release the metal key blade.
Find the keyhole on the trunk lid. On many cars, it's behind a small cover or handle. Pop the cover off if needed.
Insert the key and turn it to unlock the trunk manually.

Not every car has an external trunk keyhole. Some manufacturers removed it for design reasons. If yours doesn't have one, this method won't work, and you'll need another approach.

How Do You Use the Emergency Trunk Release Inside the Trunk?

Since 2002, all cars sold in the United States are required to have an interior trunk release handle. It glows in the dark and is designed so anyone trapped inside can get out. If you can access the trunk through the back seat, you can use this handle to pop it open from the inside.

The handle is usually a glowing T-shaped pull or a luminous strip near the trunk latch area. Pull it firmly and the trunk should open.

Should You Try the Manual Trunk Release Lever Inside the Cabin?

Most cars have a trunk release button or lever somewhere near the driver's seat. It might be on the driver's door panel, on the lower dashboard, or near the floor by the seat.

If pressing it does nothing:

Check if the car is in Park. Some vehicles won't release the trunk unless the transmission is in Park.
Make sure the child lock or valet mode isn't engaged. Look for a switch in the glove box or near the trunk area.
Try pressing the unlock button on the door first, then the trunk release.

Could a Blown Fuse Be the Problem?

If both the remote and the electronic trunk release stopped working at the same time, a blown fuse is a strong possibility.

Find the fuse box. Most cars have one under the dashboard on the driver's side and another under the hood.
Check your owner's manual for the fuse diagram to identify which fuse controls the trunk or power locks.
Remove the fuse and inspect it. A broken metal strip inside the plastic housing means it's blown.
Replace it with a fuse of the same amperage rating. Never use a higher-rated fuse.

This is a cheap fix that solves the problem more often than people expect.

What If There's No Keyhole and the Seats Don't Fold Down?

Some vehicles, especially luxury models and certain European brands, don't have an external trunk keyhole and have fixed rear seats. In these cases, your options narrow but aren't gone.

Replace the key fob battery first. A CR2032 coin battery costs a few dollars and takes two minutes to swap. This alone fixes the problem in a surprising number of cases.
Try a second key fob if you have one. If the second fob works, the first one is the problem, not the trunk.
Access the trunk lock actuator wiring. On some cars, you can remove interior trim panels near the trunk area and manually activate the latch by applying power to the actuator. This is more advanced and varies by model.
Call a qualified locksmith. A mobile automotive locksmith can often open the trunk without damage, sometimes in under 15 minutes. They carry specialized tools for this exact situation.

When Should You Call a Professional?

Call a locksmith or your dealership if:

You've tried the physical key, checked fuses, and replaced the fob battery with no result.
The trunk latch feels physically jammed or you hear grinding when you try to open it.
You're not comfortable removing interior panels or working with wiring.
The car is under warranty and you don't want to risk voiding it.

A locksmith typically charges between $50 and $150 to open a trunk, which is far less than repairing damage from forcing it.

Common Mistakes People Make When Their Trunk Won't Open

Forcing the latch or prying the lid: This bends metal, breaks the latch, and turns a $5 problem into a $300 repair.
Ignoring the fob battery: People assume it's the car when the fob is simply dead. Always test this first.
Not checking for valet mode: Some cars have a trunk lockout switch that's easy to bump accidentally, especially in the glove box.
Skip checking the fuse: A 50-cent fuse can be the whole problem. Check it before spending money elsewhere.
Using a slim jim or coat hanger without experience: These tools can scratch paint, damage weatherstripping, and trigger airbag sensors if you hit the wrong wire.

How to Prevent This From Happening Again

Replace your key fob battery every 12 to 18 months. Don't wait until it dies.
Keep a spare key fob battery in your glove box or wallet.
Know where your fuse box is and keep spare fuses in the car.
Learn where the emergency trunk release is in your specific vehicle.
Test your trunk release periodically so you catch problems early.

If your trunk is completely stuck and none of the above methods work, read our full breakdown on what to do when both systems fail for model-specific approaches.

Quick Checklist: What to Try, In Order

Replace the key fob battery with a fresh CR2032 or the correct type for your fob.
Use the physical backup key hidden inside your key fob on the trunk keyhole.
Check the trunk fuse in the fuse box and replace if blown.
Look for a valet or child lock switch in the glove box, trunk area, or driver's door panel.
Fold down the rear seats and access the trunk from inside the cabin.
Try the interior trunk release button while the car is in Park with doors unlocked.
Use the emergency glow-in-the-dark release inside the trunk if you can reach it.
Call a mobile locksmith if nothing above works or you're not comfortable going further.