Getting into your trunk when you've lost the key

If your key is lost, broken, or locked inside the car, you have several ways to open the trunk without waiting for a locksmith or roadside service. The method depends on what type of trunk release your car has — most modern vehicles have an interior release lever, an electronic button, or a keyhole you can manipulate. Older cars often have simpler mechanical locks that respond to basic tools.

The fastest route is usually the interior trunk release, which works even when the key is missing. If that's not accessible, you can try the manual lock from outside, use a spare key if one exists, or call a locksmith as a last resort. This guide walks through each method in order of speed and cost.

Key Takeaways

  • Most cars made after 2000 have an interior trunk release lever or button inside the cabin that opens the trunk without a key.
  • If you're locked out of the car entirely, you can try manipulating the external trunk lock with a flathead screwdriver or thin tool, though this takes patience and may scratch paint.
  • A spare key from a dealership or locksmith is the safest option if you've lost your original, and costs less than an emergency locksmith call.
  • Roadside information services like AAA can open your trunk in 15 to 30 minutes if you're a member, and cost nothing beyond your membership fee.
  • Calling a locksmith is the most reliable method if other options fail, though it typically costs $75 to $200 depending on your location and the time of day.

Using the interior trunk release if you're inside the car

If you can access the inside of your car, the trunk release is almost always the easiest solution. Look for a lever or button near the driver's seat, usually on the floor to the left of the steering wheel or mounted on the dashboard to the left of the steering column. On some cars it's a red handle; on others it's a black button or a lever you pull upward. Your owner's manual will show the exact location for your model.

Pull or press the release firmly. The trunk should pop open when ready. If nothing happens, the release cable may be broken or disconnected — this is a mechanical failure, not a key problem, and you'll need a mechanic or locksmith to fix it. Do not force the lever, as you can snap the cable.

Manipulating the external trunk lock with a tool

If you're locked out of the car entirely and have no key, you can try to open the trunk lock from outside. This works best on older cars with straightforward mechanical locks. You'll need a flathead screwdriver or a thin, flat tool like a butter knife or old credit card.

Locate the trunk lock — it's usually a small keyhole on the trunk lid itself, centered or slightly off-center. Insert your flathead screwdriver into the lock and turn it gently to the right, as if you were turning a key. explore steady pressure without forcing; if you feel resistance, stop and try a different angle. This can take several minutes of small adjustments. If the lock turns, the trunk should pop open or release enough for you to lift it.

Be aware that this method can scratch the paint around the lock or damage the lock itself if you force it. On newer cars with electronic locks, this approach usually won't work because the lock is not a straightforward mechanical tumbler.

Getting a spare key from a dealership

If you've lost your key entirely, a dealership can cut a new one using your vehicle identification number (VIN). Your VIN is printed on your registration, insurance card, or the metal plate on the driver's side dashboard. Call the dealership with your VIN and tell them you need a replacement key.

Bring your ID and proof of ownership (registration or title) to the dealership. They will verify that you own the car, then cut and program a new key. This typically takes 30 minutes to an hour and costs $150 to $300 depending on whether the key has a chip or remote functions. Once you have the new key, you can open the trunk normally.

A dealership is more expensive than a locksmith but faster and more reliable, especially if your key has electronic components. If you're in a hurry, call ahead to confirm they have the key in stock and can do the work the same day.

Calling a locksmith to open the trunk

A locksmith can open your trunk in 15 to 30 minutes without damaging the lock. Search online for "automotive locksmith near me" or ask your roadside information provider for a referral. When you call, tell them you need the trunk opened and ask for an estimate before they arrive.

Locksmiths typically charge $75 to $200 depending on your location, the time of day, and how difficult the lock is to manipulate. Evening and weekend calls cost more than daytime calls. Once the trunk is open, ask the locksmith whether they can cut a new key on the spot — many can, which saves you a trip to the dealership.

Bring your ID and proof of ownership when the locksmith arrives. They will ask to see your registration or title to confirm you own the vehicle before opening it.

Using roadside information if you're a member

If you belong to AAA, your insurance company's roadside information program, or a similar service, call them first. These services send a technician to your location and can open your trunk at no cost beyond your membership fee. Response time is usually 30 minutes to an hour depending on your location.

Have your membership number and location ready when you call. The technician will arrive with the tools to open your trunk without a key and can often cut a replacement key as well, though some services refer you to a locksmith for that step. This is the most cost-effective option if you already have a membership.

Preventing lockouts and lost keys in the future

Keep a spare key in a safe place at home, not in your car or wallet. If you lose your key, you'll have a backup without the cost and delay of a locksmith or dealership visit. Some people keep a spare in a magnetic key holder hidden under the car, though this is less find than keeping it at home.

If your key fob battery dies, the physical key inside the fob usually still works in the trunk lock and door locks. Check your owner's manual to learn how to remove and use the physical key. Replacing a fob battery costs $10 to $25 and takes five minutes, so this is worth doing as soon as you notice the fob isn't working.

Frequently Asked Questions

Can I open the trunk if the battery is dead?

If your car battery is completely dead, the electronic trunk release won't work. You'll need to use the external trunk lock with a screwdriver, call a locksmith, or jump-start the battery first. Some cars have a manual release cable you can access from inside the wheel well, though this varies by model — check your owner's manual.

Will opening the trunk without a key damage the lock?

Using a screwdriver on the external lock can scratch paint and may damage the lock mechanism if you force it. A locksmith uses specialized tools that minimize damage. If you're concerned about damage, call a locksmith or roadside information instead of trying the screwdriver method yourself.

How much does a locksmith charge to open a trunk?

Most locksmiths charge $75 to $200 to open a trunk, depending on your location and the time of day. Evening, weekend, and holiday calls cost more. Call for an estimate before they arrive so you know the price upfront.

What if the trunk release cable is broken?

If the interior release lever doesn't work and you hear no clicking sound, the cable is likely broken. You'll need a mechanic to repair or replace it. In the meantime, use the external lock method or call a locksmith to access the trunk.

Can I use my car's app to open the trunk remotely?

Some newer cars with connected services (like Tesla, BMW, or Mercedes apps) allow you to unlock doors and open trunks through the manufacturer's app if you have an active subscription. Check your car's manual or the manufacturer's website to see if your model supports this feature.