Read this first: safety before keys
Every situation on this site starts with the same rule. If a person is in danger, nothing about a key matters more than reaching emergency services. A child or a pet locked inside a hot car is an emergency, because the temperature inside a parked vehicle can climb to dangerous levels in a short time, even on a mild day.
Call 911 first, stay with the vehicle if you can and follow the dispatcher's instructions. Emergency responders do not need proof of ownership to act, and they will not ask you to sort out paperwork before helping. Once the person or animal is out, you can think about the key.
The same rule applies if you feel unsafe where you are. A dark road, an unfamiliar parking structure or an unwelcome stranger changes the priority. Move to a place with other people, call for help and treat the car as a second concern. A key problem can wait for a better moment, and your wellbeing cannot.
The page for this exact emergency
If a child or pet is the reason you are reading, the page on a child or pet locked in the car sets out the immediate steps in plain terms. Read it only after you have called for help.
How to use this page
The situations that follow are grouped by what has gone wrong rather than by make or model. Start with the heading that sounds most like your moment. Each group describes the problem in a paragraph or two, points to what usually matters and links to the deeper page.
You do not need to read the whole page. Skim the headings, choose one and follow it. If you are unsure, the group on lost keys and the group on lockouts together cover most urgent cases. If nothing fits, the questions section further down shows how to describe your problem on a call.
Every page in this series is educational. None of them creates a service agreement. Availability, coverage and terms are confirmed before a technician is sent, and ownership or authorization is checked on site.
Locked out of the car
A lockout is the situation where the car is closed and the key is on the wrong side of the door. It may be inside on a seat, in a trunk, in the ignition or in a pocket of a jacket that is hanging in the back. The car may even be running. The common thread is that the doors will not open and you cannot get to the key.
Lockouts happen in every setting: at a gas pump, in a garage, at an airport curb, outside a hotel, in the rain, late at night. The details of the place change what is practical, such as lighting, traffic and access. The essential question is the same, which is whether anyone is at risk and whether the vehicle is in a spot where it can safely wait.
A mobile technician can often open a vehicle without damaging it, after checking that you own it or are authorized to use it. The overview of vehicle lockouts describes how this fits into the service, and the many situation pages below describe specific settings.
- Key visible inside the car: a plain lockout.
- Key locked in the trunk: a variation with its own considerations.
- Engine still running: more urgent, since fuel and security are both concerns.
- Children or pets inside: call 911 first.
- Key in hand but doors will not respond: a fob or battery problem rather than a lockout.
Lost keys, one or all
Losing a key is a quiet kind of emergency. Nothing is broken, nothing is on fire, and still the car cannot be driven. The seriousness depends on how many keys remain. If you still have a working spare, the problem is mostly one of replacement. If you have no key at all, the situation is more involved.
The first move is to look carefully, because many lost keys turn up. Retrace your steps, check pockets and bags, and ask anyone who rode with you. If you have a phone tracker on the key ring, use it. If the key is truly gone, begin thinking about what the key might lead to, and whether any identifying information was attached.
Several pages cover this ground. The case of a single missing key is described in lost your only car key, and the broader service is outlined at all car keys lost. If you are far from your usual area on a trip, additional pages cover the particular problems of travel.
Broken, bent and stuck keys
A key that snaps off in a lock is a sharp, specific problem. The visible piece is useless, and the broken part is lodged inside the cylinder. The temptation is to dig at it with whatever is nearby. Resist that urge, since pushing a fragment deeper or damaging the wafers makes the repair harder.
The reverse situation is a key that will not come out of the ignition, or will not turn once inserted. This can be a worn key, a damaged cylinder, a steering lock under tension or a vehicle that is not fully in park. Each has a different cause and a different answer.
A technician can often extract a broken piece, assess the cylinder and make a new key from what remains or from the vehicle's code. For the specific case of a break at the door, see a key that broke off in the door lock. For a key that is stuck in the ignition, see a key stuck in the ignition.
What not to do
Do not use glue, pliers or a screwdriver in a lock. Do not hammer on a stuck key. Do not keep trying to turn a worn key with force. A cooler head and a short wait for help usually cost less than a damaged cylinder.
Fobs that stop working
A key fob is a small device that depends on a battery, a circuit and a radio link. When it stops responding, the cause may be as simple as a tired battery or as complex as a failed board. Water, drops, heat and age can all take a toll.
Start with the easy checks. Try the emergency blade to open the door. Check whether the dashboard shows a key not detected message. Try holding the fob close to the start button or the steering column, where some vehicles can read a weak fob. If you have a spare, test it. A working spare points toward a fob problem, not a vehicle problem.
The detailed pages cover several versions of this problem. See a key fob that stopped working for the general case. The guide to dead key fob battery and reset explains what a driver can do alone and when to ask for help.
Cars that will not start with the key in hand
Sometimes the key is in your hand and the problem lies elsewhere. The engine may crank and not catch, or the dashboard may show a security light, or nothing may happen at all. In these cases, the key may be fine and the car may be refusing to recognize it.
Common causes include a weak car battery, a worn ignition, a damaged chip, a fault in the immobilizer system or a steering lock that has not released. A mobile technician can test whether the key and the car are communicating, and can tell the difference between a key problem and a different fault.
If the issue is a key problem, programming or replacing the key can solve it. If the problem lies elsewhere, an honest technician will say so and suggest the right next step. This is covered more fully in the pages about vehicles that will not start, and in the guide on how car immobilizers and chip keys work.
Place matters: where you are changes the plan
The same problem looks different depending on the place. A lockout in a sunny suburban parking space is calm. A lockout in a dim parking structure, at a crowded airport curb, on a rural road, at a hotel or at a worksite carries different constraints. Each place involves access rules, lighting, traffic, privacy and time.
A mobile service needs to know where you are because the answer to whether it can reach you depends on it. Gated areas, structures with height limits, private property and remote roads all raise questions that are easiest to settle during the first call.
The situation pages for places explain these constraints one by one. They include parking garages, airports, workplaces, hotels, grocery stores, gas stations, road trips and more. Pick the one that matches your stop, and it will describe what to expect.
- Parking structures and airports: access, height limits and security desks.
- Workplaces and hotels: management permission and nearby help.
- Gas stations and stores: traffic, lighting and bystanders.
- Roads and trailheads: distance, signal and weather.
Time, weather and conditions
Conditions turn a minor problem into a major one. Heat makes a locked car dangerous for children and animals and uncomfortable for everyone. Rain and cold complicate the work and make waiting unpleasant. Night limits visibility and raises a sense of risk, even in familiar places.
If conditions are severe, put your wellbeing first. Find shelter, stay with other people and call for help if you feel unsafe. Do not stand in traffic or on a dark shoulder. A key problem is solvable. A harm to a person is not.
The pages on specific conditions, such as hot weather, rain and night, describe the practical details of staying comfortable and secure while help is arranged. They also explain how conditions can affect the tools a technician uses.
Keeping yourself comfortable while you wait
In heat, look for shade and water. In cold, find shelter and keep your phone charged. In rain, avoid standing where traffic can splash you. At night, stay in a lit area and let someone you trust know where you are.
These steps are ordinary common sense, and they matter because a key problem often involves waiting. A person who is comfortable and secure makes better decisions and has an easier call with the service.
Vehicles and keys that change the answer
The type of key and the type of vehicle change what is practical. A purely mechanical key on an older vehicle is a simple matter. A transponder key needs programming. A push button fob adds another layer. Newer vehicles from some makes may need dealer-level tools or manufacturer access.
A reputable service will ask for the year, make and model early because the answers shape the approach. If your car is a newer model with a protected key system, the honest answer may be that the dealer is the better route, or that the mobile service can help with part of the problem, such as a lockout.
For more on the make-specific picture, see car keys by make and the matching section on vehicle types. These pages explain the general situation without claiming that every model is supported.
Situations involving other people
Not every key problem belongs to a single driver. A teenager loses the family car key. A buyer finds that a used car came with no key. A relative inherits a vehicle with no keys in sight. A small business owner has a work van with a key that only one employee holds.
These situations add a layer of ownership and authorization questions. Who has the right to ask for a key? What documents show it? How do you reach the registered owner? A good service asks these questions gently, and the pages in this group describe what to expect.
Ownership proof has its own guide, proving you own the car for a replacement key. The pages in the situation series that deal with inherited cars, used purchases and teenagers go into the particulars.
What to expect from a call, whatever the situation
Whatever has happened, the sequence of a reputable service is the same. You call or send a callback request. The service asks about the vehicle: year, make and model. It asks where you are and what happened. Availability, coverage and terms are confirmed before dispatch. A technician comes to the vehicle. Ownership or authorization is checked on site. The work is done and tested.
Knowing the order helps you stay calm. You are not agreeing to anything blind, and you are not expected to know technical terms. The technician takes care of those. Your job is to describe the car, the place and the problem as clearly as you can.
For a helpful list of what to say, see what details to give when you call. For the whole sequence in one place, see how the service works.
How to decide what to read next
If you are in a lockout, read the lockout pages first. If you have lost a key, read the lost key pages. If you have a broken key or a stuck key, read the pages about extraction and the ignition. If a fob has failed, read the fob pages. If the car will not start, read the pages about starting problems.
After that, return to the general guides. The overview of the service is at car key replacement, and questions drivers raise most often are gathered under questions drivers ask. Those pages answer topics such as proof of ownership, programming and what happens to a lost key.
The list of situation pages appears below this text. Each one covers a different moment, and you can open as many as you like.
If you are reading ahead because you want to be prepared, that is a good use of calm time. Pick the two or three situations most likely to affect your own driving, such as a lockout at a favorite parking spot or a failing fob on an older car, and read those pages now. A little preparation turns an unfamiliar crisis into a familiar one.
Scope and a final reminder
The pages in this section are educational. They are meant to help you understand what is happening and to prepare for a conversation with a service. They do not create a service agreement, and they do not promise that any vehicle is supported or that any result will be achieved.
If anyone is in danger, call 911 first. A child or a pet locked in a hot car is an emergency, and nothing about a key should delay that call. After the emergency is handled, return to the situation that applies and take the next step.
This service covers automotive key problems only: car keys, key fobs, transponder keys, remote and proximity fobs and vehicle lockouts. It operates across the United States, and availability in your area is confirmed before a technician is sent.
Common questions
Which situation should I read first?
Start with the one that matches what just happened: a lockout, a lost key, a broken key, a failed fob or a car that will not start. If a person or animal is trapped, call 911 first and read afterward. Each situation page explains the usual steps and links to related topics. Limits depend on the vehicle, and availability is confirmed first.
Are these pages the same as a service agreement?
No. The pages are educational and do not create a service agreement. Availability, coverage and terms are confirmed before a technician is dispatched, and ownership or authorization is checked on site. If something on a page does not match your case, ask the service directly. Details vary by vehicle, so ask before work begins. Ask the service if you are unsure.
What if my situation fits more than one group?
That is common. A driver may have lost a key and also have a failing spare, or be locked out with a broken fob. Describe everything to the service in order, starting with any safety concern. The technician can sort the pieces into a sensible sequence. The technician confirms what applies to your vehicle on site.
Do I need to know technical terms to describe my problem?
No. Plain words work well: the key snapped, the door will not open, the car will not start, the fob stopped responding. The service will ask about the year, make and model and where you are. It can interpret the rest and explain any term it uses. Availability and terms are confirmed before anyone is dispatched.
Can every situation be solved at the vehicle?
Many can, but not all. Some newer vehicles from some makes need dealer-level tools or manufacturer access, and some damage needs a shop. A reputable service says so plainly rather than promising what it cannot deliver, and it can often help with part of the problem, such as opening the car. Limits depend on the vehicle, and availability is confirmed first.