First, stop and keep calm
When a key snaps, the instinct is to try again. People jiggle the stump, push the pieces together, apply glue, or try to turn what remains of the blade. Each of those moves can make the situation worse. A broken piece pushed deeper into a lock or ignition can become harder to remove. A bent blade can scratch the internal parts that read the key. Glue near a lock can seep into the mechanism and cause a permanent jam.
Take a breath and look at what you have. Where did the key break, and where are the pieces? Is a piece still inside the door or the ignition? Is the car locked or unlocked? Is the engine running, and is anyone inside the car? If a person or animal is trapped in a hot or unsafe vehicle, the answer is to call 911 first. For everyone else, the plan is calm and straightforward.
A broken key rarely means the car is damaged. Keys are small, wear over time and fail at stress points. The more important questions are whether the remaining pieces can be used as a guide for a new key, and whether the lock or ignition has been harmed. A technician can answer both questions when they see the parts.
Blade breaks versus head breaks
Keys tend to break in two ways. A blade break means the metal part that enters the lock has snapped off, usually near the shoulder, where the metal meets the plastic or metal head. The head still holds the remote buttons or the transponder chip, but the blade is separate. A head break means the plastic or metal bow has cracked, which can expose the chip, damage the buttons or detach the head from the blade.
These breaks are not the same job. In a blade break, the head with the chip may still be usable, and a new blade can sometimes be cut and attached. In a head break, the chip may be damaged, or the housing may be cracked in a way that allows moisture in. The remaining blade may be able to turn the door lock but not start the engine, because starting requires the chip to be recognized.
Look closely and describe what you see when you call. Say which part is in your hand, which part is missing, and whether any metal is still in a lock. Photos help. A technician can often tell from a description whether a repair, a new blade, a new key or an extraction is the likely path.
- Blade snapped off at the shoulder, head intact: the chip and remote may be reusable.
- Blade snapped in the middle: a piece may remain in the lock, and the visible stub may still be usable as a pattern.
- Head cracked but blade intact: the blade may still turn a lock, but the chip or buttons may no longer work.
- Key bent but not broken: do not straighten it by force, because small cracks can turn into a break.
Saving every piece matters
Every fragment has value. The blade pieces show the cuts that match your lock, which can be used as a guide when a replacement is made. The head may contain a transponder chip that identifies the key to the car. The remote circuit board, battery and buttons may be reusable in a repair. Even small fragments can help a technician understand how the key failed.
Place the pieces in a small bag or envelope and keep them together. Avoid carrying them loose in a pocket or bag, where they may be lost or bent. Do not try to join them with tape or adhesive, because residue can hide the cuts. If a piece remains in the lock, leave it there, since a technician has tools designed to remove it without harming the lock.
If a piece fell on the ground in a parking lot, look carefully before you leave. A small metal piece on dark asphalt is easy to miss. In South Florida's rain or in a busy garage, such a piece can be washed away or kicked under a car. A phone flashlight and a slow look around can save you a lot of trouble.
What is safe to hold onto and what is not
Holding the pieces is safe. Avoid pushing or pulling on a piece that is partly stuck in a door lock or ignition, and avoid using tools like needles, tweezers, paper clips or pocket knives to fish for fragments. These tools can scratch the inside of the lock, push a piece further in or damage the parts that hold the pins and wafers in place. Spraying lubricant is also not a good idea if the lock will need to be repaired, because the wrong product can attract dirt or interfere with the work.
You should also avoid forcing a broken key in the ignition to turn. If the key is partially in and the steering column is locked, the car may be stuck in a state where any force can damage the ignition housing or steering lock. Leave the key where it is and call for help. The page on key stuck in the ignition explains why stopping is better than forcing.
This site does not provide lock-bypass instructions, and we do not recommend homemade extraction methods. The risk of damaging a lock or ignition is real, and a replacement can cost more than the original service. If you feel uneasy about the situation, that is the right instinct. Wait for a trained technician.
What a locksmith will check
When the technician arrives, the first step is to confirm that you are entitled to the vehicle. That means photo identification and a connection to the car, such as a registration, title record, insurance card or lease. Even though the key is broken, you still need to prove you are an authorized user. Read about locksmith authorization for vehicles for details.
Next, the technician examines the pieces and the lock. If part of the key is stuck in a door lock or ignition cylinder, the technician decides how to remove it and whether the cylinder is still sound. After removal, the technician checks that the lock turns smoothly with a test key. If the cylinder was damaged, it may need to be repaired or replaced.
Then the focus moves to the replacement. If the head with the chip is intact, a new blade may be cut and attached. If the chip or buttons were damaged, a new key is prepared and programmed to the vehicle. If the lost or broken key is a transponder, the technician makes sure the vehicle recognizes the new one. If you have no working key left, the process is closer to all keys lost.
Why keys break in the first place
Most keys break for ordinary reasons: wear, stress, and a long working life. Metal fatigue builds up in the thinnest part of the blade, which is usually near the shoulder or in the cut valleys. A key that has been used for a long time, copied from a copy, or used to pry open items can develop hairline cracks that finally give way. Using a key as a screwdriver, a bottle opener or a box cutter is a common cause.
Locks can contribute to breakage. A stiff or dirty lock requires more force to turn, and a key that already has a weak point can snap. In South Florida, humidity and salt air can corrode lock internals and make them stiff. A lock that has been sticky for months deserves attention before the key gives up. See salt air and lock corrosion for a look at how coastal conditions affect locks.
Key copies of poor quality can also be weaker. A copy made on a worn machine or a copy of a copy may have slightly different cuts, which can bind in the lock and cause stress. If your broken key was a copy, a replacement cut from the original or from factory data can be smoother and less prone to the same failure.
Scenarios across Broward and Palm Beach
A nurse in Hollywood turns the key in the driver door after a long shift and hears a snap. The blade is stuck in the door lock and the head is in her hand. The car is locked and the fob is not able to open the doors. The best move is to stop, keep the head safe, leave the stuck piece in place and call. The technician can remove the piece, then cut a new blade for the head, and the nurse is on her way.
A student in Davie with an older car has a key that bends in the ignition. It breaks as he removes it, leaving the head in hand and a short stub in the cylinder. Because the stub is stuck in the ignition, the technician will likely remove it and check the cylinder for damage. A new key will be cut, and if the car has a transponder, programmed.
A retiree in Lake Worth Beach has a flip key whose plastic head cracked at the hinge. The blade is intact but the remote no longer works. The retiree has no spare. The technician replaces the shell around the chip and circuit board if possible, or prepares a new key if the electronics are damaged. A spare is recommended once the situation is resolved.
A rideshare driver in Coral Springs has a smart key whose emergency blade snapped while opening the door during a dead battery. The car will not unlock with the remote, and the blade is broken. The driver calls a technician who can open the vehicle by trained methods, replace the blade or fob and check the fob battery.
Replacement, repair and ignition concerns
Not every broken key needs a full replacement. If the break is clean, the head is intact and the chip still functions, a technician may be able to attach a new blade. If the head has broken, the chip may be moved to a new housing. If the remote circuit is damaged, a new remote may be needed. The technician will advise based on what they find.
If a piece was left in the ignition and the technician has to remove it, the ignition cylinder may be inspected for wear. A worn ignition can cause repeated key breakage, because the key must be forced to turn. In that case, replacing the cylinder may be wise. See ignition cylinder worn or damaged to understand the signs.
Quotes are given only by phone. A broken key may be a simple job or a complicated one, depending on the key type and whether a piece is stuck. A service call charge applies when a technician is dispatched, and it is explained before anyone is sent. Ask what could change the plan and whether an on-site visit might be needed before a final amount is given.
What to have ready when you call
Helpful information shortens the call. Describe the break, where the pieces are and whether the vehicle is locked. Mention the make, model and approximate year. If the vehicle uses a push-button start or a remote, say so. If you have a spare key, say so, because a spare may allow a quicker copy.
Take a photo of the broken key and any piece in the lock if you can do so safely. Do not remove a piece that is stuck. If it is dark or wet, wait until you have light. Keep your identification and vehicle documents ready, and tell the dispatcher if they are inside the car.
- Make, model and approximate year of the vehicle, and its location.
- Which part of the key is broken and where each piece is, including any piece stuck in a lock or ignition.
- Whether you have a spare key or fob, and where it is.
- Photo identification and a registration, title record, insurance card or lease.
- Whether the car is locked, whether the engine is running and whether anyone is inside.
Avoiding the next break
A little care reduces the odds. Do not use car keys as tools. Remove heavy key rings from the ignition, because weight on the key can wear the ignition and stress the blade. Replace a worn key before it breaks, and have copies made from a good original. If a lock feels stiff, get it checked rather than forcing it.
Consider a spare while you still have a working key. The spare car key making page explains how copies are made. If you do not have a working key right now, the next best time is as soon as a new one is cut.
If you are standing next to a broken key right now, call and describe what you see. The dispatcher will explain how verification works, how quotes are handled and what the technician will do. Call and we will take the next step with you.
Questions people ask
Should I try to glue my broken key back together?
No. Adhesive can leave residue that hides the cuts a technician needs, and it can seep into a lock and cause a jam that is harder to fix than the original break. Keep every piece together in a bag or envelope and avoid forcing them into the lock. A trained technician can assess whether a repair or a new key is the better path.
A piece of my key is stuck in the lock. Can I pull it out with tweezers?
It is best not to. Tools can push the piece deeper, scratch the inside of the lock or damage the parts that hold the pins or wafers. Leave the piece in place and call a technician who has extraction tools designed for the job. Take a photo of the area if it helps explain the situation.
Will a new key work if the old chip is broken?
A new key can be prepared and programmed to the vehicle, though the details depend on the make and model. If the chip in the old head is intact, it may be reused in a repair. If it is damaged, the technician will make a replacement key and introduce it to the car. Ask the dispatcher what applies to your vehicle.
Do I still need to show proof of ownership if my key just broke?
Yes. A broken key does not change the requirement that you be entitled to the vehicle. Expect to show photo identification and a registration, title record, insurance card or lease. If those items are in the car, tell the dispatcher so alternatives can be discussed, such as photos from a family member or a digital copy.
How are charges handled for a broken key job?
Quotes are given only by phone because the amount depends on the key type, whether a piece is stuck and what the lock or ignition needs. A service call charge applies when a technician is dispatched, and it is explained before anyone is sent. If the job is more involved, an on-site visit may be needed before a final amount is given.
Could a broken key mean my ignition or lock is worn?
Sometimes. A key that is forced to turn can snap, and a worn or dirty lock can cause the force. If your key has been sticky or hard to turn for some time, mention it to the technician so the lock or ignition can be inspected. Replacing a worn part can prevent repeated breaks.
Describe the situation by phone and we will tell you what the job involves. Quotes are given by phone. Jobs that cannot be quoted without seeing them need a technician on site, and the service call charge is explained on the phone before anyone is dispatched.