Car Key Stuck in the Ignition

A key that will not come out is usually the selector not quite home in Park. With a foot on the brake, move it to Drive and back, then try again. A loaded steering wheel is the other cause.

Those three cover most of them and all three are free. This is about a whole key that will not come out. A blade that has snapped off inside the barrel is a different problem and it has its own section further down.

What to check in the first minute

Four checks, in this order, and every one of them is gentle. The thing that turns this into an expensive morning is pulling harder, which is the next section.

What not to do while it is stuck

Four things, and the first one is the reason this article leads with the free checks rather than with causes.

Do not pull harder. This is the whole of it. A key blade is thin brass or nickel silver and it fails at the shoulder, right where it disappears into the barrel. British locksmith trade figures put a forced job at roughly three times a straightforward one, because a snapped key removed from a barrel usually takes the barrel with it. Ten seconds of impatience is the difference.

Do not spray penetrating oil into it. A general purpose spray feels like it helps for a fortnight and then holds every speck of dust the key carries in, against the wafers. A stiff barrel becomes a jammed one. Where a lubricant is genuinely needed it is a dry graphite or PTFE product worked in on the blade, never a wet one.

Do not keep turning the key back and forth. Each attempt wears the wafers a little further out of shape, and on a barrel that is already worn it is making the underlying fault worse.

Do not lever it with anything. Pliers, screwdrivers and keyrings used as handles all multiply the force on the weakest part of the assembly, which is exactly the part you do not want to break.

Why a car holds the key in

On an automatic, the key is not simply sitting in a hole. It is being held there deliberately.

An electrically operated interlock keeps the key in place until the car is genuinely in Park and the circuit agrees that it is. Only then does it let go. The mechanism goes by several names, most often the shift interlock solenoid or the key release solenoid, and it is the same idea on every car that has one.

It exists for a good reason. A car left in Drive with the key taken out is a car that can roll away, so the two are tied together. You cannot take the key without selecting Park, and on most cars you cannot select Park without a foot on the brake.

That is why the first check works so often. The selector can sit a fraction short of home, feeling completely normal to the hand, while the switch that confirms it never closes. Moving it out and firmly back reseats it, the circuit completes, and the key comes out.

On a manual car none of this applies, which is worth knowing before spending five minutes on a gear selector that has nothing to do with it.

When the battery is flat

This is the case that makes no sense until the section above is understood, and it is the one most people get wrong.

A flat battery does not jam the key mechanically. It removes the power that would release it. The interlock needs electricity to let go, so a car with a dead battery holds the key exactly as if the selector were in Drive. Nothing is broken and nothing is stuck.

The supporting signs are obvious once you look. No interior lights, a dashboard that stays dark, and no sound at all when the button or the key is used.

Almost every automatic has a manual way round this, because manufacturers know the battery will go flat eventually. It is usually a small covered slot beside the gear selector, sometimes marked with a key symbol, which releases the selector by hand so the key can come out.

Where it is and what it looks like varies by manufacturer, and the handbook names it for your car. It is worth finding once while everything works rather than in the dark with a flat battery, because the glove box is a difficult place to read by phone light.

Stuck once, or sticking every time?

One question separates an incident from a warning, and it changes what happens next.

Stuck once, and never before. Almost always Park, the steering lock or the off position. Nothing is worn, nothing needs fixing, and the free checks deal with it. Where the key comes out but will not go back in and turn next time, that is a different fault and the article on a key will not turn covers it.

Sticking a little more every week. This is a barrel wearing out, and it is the useful stage. It started as a key that needed a wiggle, then a key that needed two attempts, and it ends with a key that does not come out at all, usually on a morning when there is no time.

The second one is worth acting on precisely because the car is still usable. A barrel dealt with while it still works is a booked visit. The same barrel three weeks later is a car that cannot be left.

When the steering lock is holding it

The pin that locks the steering column drops in when the key comes out, and it can jam against the barrel when the wheel is loaded to one side. Because the two are linked, a jammed pin holds the key as firmly as the interlock does.

Gentle pressure on the wheel in one direction, then the other, takes the load off it. Force does the opposite and binds it harder. Where the wheel itself is the subject rather than the key, a steering wheel locked against the key is covered separately, including the electronic version of the same lock and the steering lock replacement that follows when it has failed rather than jammed.

When the barrel or the key is worn

Where the free checks have all failed, the fault is mechanical and it is in one of two places.

The key. Hold it next to the spare. Cuts that have gone rounded against cuts that are still square is the whole diagnosis, and a blade that has bent slightly does the same thing. A key worn past a certain point no longer lifts the wafers cleanly enough to come back out, and a fresh blade cut to code rather than copied from the worn one puts it straight.

The barrel. The tell is that the spare behaves exactly the same way. Wafers and springs wear, and once they do, no key is going to work properly because the fault is on the other side of the lock. Ignition barrel repairs deal with the worn components, and a rebuilt or replacement barrel is usually matched to the key already in use so one key still works everything.

The spare key test is the whole of the diagnosis and it takes twenty seconds.

If the key has snapped instead

Everything above assumes the key is in one piece. If the blade has snapped and part of it is inside the barrel, stop.

Do not try to get it out. Not with pliers, not with tweezers, not with glue, not with a blade of any kind. A fragment sitting loose in the keyway can usually be removed without touching the barrel. The same fragment pushed further in, or broken again into two smaller pieces, frequently cannot.

That is the difference between a short job and a barrel replacement, and it is decided in the first two minutes by whoever is holding the pliers.

Leave it exactly as it is, do not turn the key stub if any of it is showing, and do not spray anything into the keyway. Every one of those makes the extraction harder.

Why leaving it overnight is risky

This is the part that decides whether it waits until the weekend, and almost nobody raises it.

A key stuck in an ignition is a car that cannot properly be secured. On many vehicles the doors will not lock at all with the key in place. On the rest they lock, and there is a key sitting in plain view through the windscreen to anybody walking past.

That matters more than the inconvenience does. A car left overnight in that state is a car advertising exactly what somebody needs, and it is not a difficult thing to notice from the pavement.

It is also worth reading your own policy rather than assuming. Insurers take a position on keys left in or with a vehicle, and the wording varies enough that it is not safe to guess either way. Whatever it says, a car in that state overnight is a risk taken for no good reason when the fault is usually a short job.

How a locksmith gets it out

The order matters more than the equipment, because each step removes a group rather than testing a hunch.

Voltage is checked first, under load rather than at rest, because a battery that reads well with nothing drawing from it is the commonest false lead on this fault. The interlock is proved next, which separates an electrical hold from a mechanical one. The spare key goes in third, which splits the key from the barrel in a single move. Only then is the barrel itself assessed.

Three outcomes come out of that. A release with nothing further needed, which is a good share of them. A key recut to code where the blade alone has gone. Or a barrel repaired or replaced and matched to the existing key. All of it happens at the vehicle rather than the car going anywhere, and a emergency call-out covers the evenings this tends to happen in.

How to stop it happening again

Five habits, and four of them cost nothing.

Push the selector fully home. Not nearly into Park, properly into Park. It is the single commonest cause on this page.

Straighten the wheel before switching off. One second, and it removes the loaded pin entirely.

Turn the key all the way round. Not to the point where the engine stops, to the end of its travel.

Take the weight off the keyring. A heavy bunch hanging from a key in the ignition levers on the barrel over every bump, and years of that wears the wafers unevenly. It is the reason a barrel fails at eight years rather than fifteen.

Act on the first sticky morning. A barrel gives months of warning and it is only cheap to deal with while the car is still usable.