Last Updated: October 26, 2026
Quick Summary
When keys locked in trunk, first check if any doors are unlocked to access the interior trunk release or fold-down rear seats. If all doors are locked, look for a spare key, try your vehicle's companion app, or call a mobile locksmith or roadside assistance for professional help.
- Check whether any car doors remain unlocked before assuming you're completely locked out
- Mobile locksmith non-destructive entry typically costs $50-$150 during daytime or $100-$250 after-hours
- Many auto insurance policies and auto club memberships include lockout service at no additional charge
- Never pry the trunk open with tools, as this damages weather seals, wiring, and electronic locks
- Keep spare keys in multiple locations, at home, work, and with a trusted family member
Table of Contents
- Assess Your Immediate Situation and Safety
- Check for a Spare Key or Alternative Access
- How to Unlock a Car Trunk Without a Key
- When Your Car Trunk Won't Open With Keys Inside
- How Much Does It Cost to Unlock a Car
- Roadside Assistance and Car Lockout Support
- Prevent Future Trunk Lockouts and Secure Your Keys
- Frequently Asked Questions
Assess Your Immediate Situation and Safety
When you discover your keys locked in trunk, your first priority is staying calm and safe. Take a moment to assess what you're dealing with before rushing into action.
Check for an emergency first. If a person, child, or animal is trapped inside the vehicle, call 911 immediately. Do not wait for a locksmith.
Verify what is actually locked. Walk around the vehicle and test each door. Sometimes only the trunk is locked while a door remains unlocked.
Use this decision tree to pick your next step:
- Are any doors unlocked? If yes, open a door and try the interior trunk release lever or button, or fold down the rear seats to reach the trunk.
- Do the rear seats fold down? If yes and you can access the cabin, fold them and reach the trunk latch or keys from inside.
- Do you have a spare key or fob nearby? If yes, use it, this is the fastest and cheapest solution.
- Does your vehicle have a companion app? If yes and your subscription is active, try unlocking the trunk remotely.
- Is the vehicle a make/model with a mechanical trunk release? Check your owner's manual, some vehicles have a cable release inside the cabin even when the electronic release fails.
- If none of the above apply, call roadside assistance, a mobile locksmith, or a dealership. Do not force the trunk.
Consider whether you need immediate access. Is something urgent in the trunk, medication, a pet, or documents? If so, tell the dispatcher. Some providers prioritize urgent calls.
Watch Out Do not attempt to pry the trunk open with a screwdriver or crowbar. Improvised entry can damage weather seals, wiring, airbags, paint, or electronic locks, and may affect your warranty or insurance claim. Non-destructive entry by a professional is almost always cheaper than the repair bill from a DIY attempt.Check for a Spare Key or Alternative Access
Before calling anyone, explore what you already have available.
Look for a spare key. Do you keep one at home, with a family member, or at work? A spare key solves this problem immediately. If you have one nearby, this is your fastest option.
Check for a key fob or remote. A functioning key fob can unlock your car's doors and sometimes the trunk. If your fob's battery is dead, try replacing the battery first. Many auto parts stores sell replacement batteries for under $10.
Explore smartphone app options. Modern vehicles increasingly offer companion apps that unlock doors and trunks remotely. Check whether your vehicle manufacturer offers one. Our team at Dealerkeys can explain how smart key fob and smartphone app solutions work if you're considering this route for future lockouts.
Ask about keyless entry systems. Some vehicles have PIN codes or biometric access. Check your owner's manual for these features. They're becoming more common in newer models.
How to Unlock a Car Trunk Without a Key
If you can't access your keys or a spare, try these methods before calling for professional help.
Access Through Fold-Down Rear Seats
Many vehicles allow you to access the trunk from inside the cabin through fold-down rear seats.
Locate the rear seat release handles. Look for red or colored handles on the back of your rear seats.
Pull the handles firmly. Release both sides if your vehicle has them. The rear seats should fold forward, creating an opening to the trunk area.
Reach through the opening. Once the seats are down, you can often reach the trunk latch or pull the trunk open from inside. Be careful of sharp edges.
Check your owner's manual first. Not all vehicles have this feature. Some models have locks on the fold-down mechanism.
This method works on sedans, hatchbacks, and some SUVs. Trucks and vehicles with fixed rear seats won't have this option.
Use the Interior Trunk Release Lever or Button
Most modern vehicles include an interior trunk release inside the cabin.
Find the trunk release control. Look on the driver's side door panel, near the floor. It might be a lever, button, or electronic control.
Identify the symbol. The trunk release usually shows a trunk icon. If you can't find it visually, check your owner's manual for the exact location in your model.
Activate the release. Pull the lever or press the button. You should hear the trunk pop open. If nothing happens, the control might be broken or your battery might be too low.
Try the emergency trunk release. Some vehicles have a glow-in-the-dark handle inside the trunk itself. If you're already inside the trunk (a rare situation), pull this handle to release yourself.
Try a Smartphone App or Key Fob
Digital access methods are becoming standard on newer vehicles.
Check your vehicle's companion app. Most major manufacturers offer apps that control locks and trunks remotely. Download the app, log in with your vehicle's registration, and try unlocking the trunk from your phone.
Verify your subscription is active. Many apps require an active service subscription. If your trial expired, you may need to reactivate it.
Try a replacement key fob. If your original fob is inside the trunk, you may need to replace keys from a dealership or authorized provider. Programming a new fob takes time, but it solves the immediate problem.
Use a spare key fob if you have one. Keep spares in different locations. A fob in your pocket or at home becomes invaluable in situations like this.
When Your Car Trunk Won't Open With Keys Inside
Sometimes the trunk simply won't open, even with the right key or method.
What If You Lock Your Keys Inside Your Trunk?
Eroad Car Battery Replacement
The trunk latch might be broken. A damaged latch mechanism won't respond to keys, buttons, or electronic signals. This requires professional repair.
Your vehicle's battery might be too low. Electronic trunk releases need power. A dead or dying battery prevents the release mechanism from working.
The lock mechanism might be frozen. Cold weather or rust can freeze trunk locks. Try applying lock de-icer or penetrating oil around the lock.
The trunk might be stuck from inside. Objects pressing against it or debris jamming the mechanism can prevent opening. You may need professional help to diagnose this.
Modern security systems might be blocking access. Some vehicles lock the trunk electronically if they detect a security issue. If your vehicle has a faulty module preventing trunk access, clone modules can sometimes restore functionality.
In these situations, calling a professional locksmith becomes necessary. Forcing the trunk risks damaging your vehicle and creating expensive repairs.
How Much Does It Cost to Unlock a Car
Understanding pricing helps you decide whether to tackle this yourself or call for help. Always confirm the price before authorizing work.
| Option | Typical Cost Range (USD) | Typical Wait Time | Best For |
|---|---|---|---|
| DIY (spare key, rear-seat access, interior release) | $0 | Minutes | Doors unlocked or rear seats fold down |
| Roadside assistance / auto club lockout coverage | $0-$100 per call (often included in membership) | 30-90 minutes | Members with lockout coverage |
| Mobile locksmith (non-destructive entry) | $50-$150 daytime; $100-$250 after-hours | 30-60 minutes | Keys locked in trunk, no spare |
| Dealership service | $100-$300+ (labor rates vary) | Same-day to next-day | Vehicle needs module programming or OEM key |
| Key fob replacement (basic) | $50-$150 | Same-day if in stock | Lost or damaged fob |
| Key fob replacement (smart/proximity) | $150-$400+ | May require appointment | Push-button start vehicles |
| Spare key delivery (family/friend) | $0 (fuel cost only) | Depends on distance | Spare available nearby |
DIY methods cost nothing. If you can reach the keys through fold-down rear seats, an interior trunk release, or a spare key, you save the service call entirely.
Roadside assistance is often the cheapest professional option. Many auto insurance policies and auto club memberships include lockout service at no additional charge.
Mobile locksmith pricing depends on timing and vehicle. Non-destructive entry costs less than methods requiring damage. Emergency or after-hours calls typically cost more than daytime service.
Additional charges apply for complex situations. If your vehicle has advanced security systems or requires module programming, expect higher costs.
Pro Tip Before you call anyone, ask two questions: "What is the total out-the-door price?" and "How long until you arrive?" That prevents surprise fees and lets you compare options fairly.Roadside Assistance and Car Lockout Support
Professional help becomes your best option when DIY methods fail. Learn what emergency lockout services involve and how to access them.
Roadside assistance plans cover lockouts. Many insurance policies and auto club memberships include lockout service.
AAA and similar services dispatch locksmiths. These organizations maintain networks of licensed professionals. Response times vary by location and demand.
Mobile locksmiths come to your vehicle. They bring tools and expertise directly to you. Non-destructive entry methods minimize damage to your vehicle.
Dealerships can unlock your vehicle. They have master keys and programming tools. This option works well if your vehicle needs module repair or programming.
Police can help in emergencies. If you're locked out with a child or pet in the vehicle, call 911. Police may dispatch assistance or provide guidance.
When you need emergency lockout help in East Tennessee, learn how emergency lockout service works and what to expect. If you're in our service area, find out whether we can reach your location by checking where we work across the region.
Prevent Future Trunk Lockouts and Secure Your Keys
Once you've resolved this situation, prevent it from happening again.
Use a key fob holder or keychain. A dedicated holder makes keys harder to lose and easier to find.
Program a digital key in your phone. Modern vehicles support smartphone access.
Enable remote unlock features. Activate your vehicle's companion app or smart lock system.
Keep your spare fob accessible. A spare fob in your glove box or bag provides quick backup access.
Schedule regular key maintenance. Check your keys and fobs periodically. Replace worn batteries before they fail completely.
Consider a keyless entry system upgrade. Newer vehicles offer multiple access methods.
Mark your keys clearly. Use colored tags or engraved identification.
Getting locked out of your trunk creates frustration and inconvenience.
Frequently Asked Questions
What should I do if my keys are locked in the trunk?
First, stay calm and assess whether you need immediate access or can wait for help. Check if you have a spare key nearby or if your vehicle has a smartphone app for remote unlocking. If your car has fold-down rear seats, you may be able to access the trunk from inside the cabin. If those options don't work, contact roadside assistance or a professional locksmith who can open your trunk without damaging your vehicle. Avoid prying or forcing the trunk, as this can cause costly damage.
Can roadside assistance unlock a car trunk?
Yes. Most roadside assistance programs, including those offered through insurance companies and automotive clubs, can dispatch a professional to help with trunk lockouts. They typically arrive within 30-60 minutes depending on your location and current demand. Roadside assistance is often the fastest option if you're a member, and many plans cover lockout calls at no additional cost. If you don't have roadside assistance, an automotive locksmith can provide the same service.
Will a locksmith be able to open my trunk without damaging the car?
Professional locksmiths use non-destructive entry techniques specifically designed to open trunks without harming your vehicle's paint, locks, or door panels. They use specialized tools like air wedges and bypass techniques that work with your car's security system. Experienced locksmiths have worked on thousands of vehicles and know the safest method for your specific make and model. Always request a non-destructive entry approach and ask about their experience with your vehicle type before they begin.
How much does it cost to unlock a car?
Trunk unlocking costs vary based on your vehicle's make, model, and the method required. Roadside assistance members typically pay nothing or a small deductible. Professional locksmith fees generally range depending on complexity, time of day, and your location. Emergency calls outside business hours may cost more. Contact a local locksmith or your roadside assistance provider for an exact quote before service begins.
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