Yes, a phone finds car keys when a Bluetooth tracker tag is already attached to the key ring, by ringing the tag or showing the last location of the tag on a map. A car key with no tracker is the exception, because a standard car key sends its radio signal on 433 MHz and a phone has no receiver for that band.
Key Finder Steps
Pick the phone and whether a tag is on the keys.
Open the Find My app, select the tag named Car Keys and tap Play Sound. Tap Directions when the tag is far away.
Open the Find Hub app, select the tag named Car Keys and tap Play Sound. Tap Directions when the tag is far away.
Open SmartThings Find, select the tag named Car Keys and ring the tag. Follow the map when the tag is far away.
No app finds car keys that carry no tag. Retrace the day with the location history of the phone, then check inside the car.
Keys gone for good? Call 07830249408 and I make a new key at the car.
Keys gone for good? Call 07830249408 for lost car keys in Devon, Dorset or Somerset. I am a mobile auto locksmith based in Honiton and I create a new key at the car, with no original key.
Finding car keys with a phone works in 3 ways. A tracker tag rings and reports a location, a car maker app shows where the car is parked, and the location history of the phone shows where the day went. The sections below cover each way for iPhone and Android, the apps that work, and the steps to take when the car keys stay lost.
Open the finder app on the phone, select the tag on the car keys and tap Play Sound. Follow the map to the last known location when the tag is out of Bluetooth range. Retrace the day with the location history of the phone and check inside the car when the keys carry no tag.
Can a Phone Find Car Keys Without a Tracker?
No, a phone does not find car keys without a tracker. A standard remote key sends a short radio signal on 433 MHz only when a button is pressed, and a phone has no receiver for that band. Key fob detector apps and car key scanner apps therefore detect nothing from a standard key.
A phone still helps the search for car keys in 4 ways, and all 4 are free.
- Location history. The maps app lists the places the phone visited that day, when location history is switched on, and the list shows where to retrace.
- Car maker app. A connected car reports its parking position, and car keys are often inside the car or close to the car.
- Photo records. Each photo from the day carries a time and a place, which narrows the search.
- Phone torch. The torch lights the gaps under car seats and between sofa cushions.
A key that stays missing after the free search is replaced at the car, and the lost car keys service creates the new key with no original key.
What Are the 4 Ways a Key Finder Works With a Phone?
The 4 ways a key finder works with a phone are the sound alert, the last known location, the finder network and precision finding. A key finder is a coin sized Bluetooth tracker tag that hangs on the key ring and pairs with a finder app on the phone.
Sound Alert
A sound alert is a ring that the phone tells the tag to play. The sound leads to car keys inside a house, a bag or a car.
Last Known Location
The last known location is the place where the phone last had a Bluetooth link to the tag. The pin on the map shows where the car keys dropped out of range.
Finder Network
The finder network is every other phone that passes the tag and reports its position without any action from the owner. The finder network finds car keys left miles from the phone.
Precision Finding
Precision finding shows the distance and the direction to a matching tag on a phone with ultra wideband. An AirTag and a recent iPhone work this way.
The range of a key finder is its limit. Tag makers quote 60 to 120 metres (200 to 400 feet) in open air, and walls cut that range sharply. A tag battery lasts about 1 year.
How Do You Set Up a Key Finder in 4 Steps?
Set up a key finder in 4 steps, which are choosing a tag that matches the phone, attaching the tag to the key ring, pairing the tag with the finder app and testing the sound and the map. Complete the 4 steps before the car keys go missing.
Choose a Tag That Matches the Phone
Choose a tag that matches the phone, because each finder app reads its own tags. An AirTag works with the Find My app on an iPhone. A Find Hub tag works with the Find Hub app on Android, and a SmartTag works with SmartThings Find on a Galaxy phone.
Attach the Tag to the Key Ring
Attach the tag to the key ring with a holder or a loop. Keep the tag clear of the key fob buttons.
Pair the Tag With the Finder App
Pair the tag with the finder app by holding the tag next to the phone and following the pairing screen. Name the tag Car Keys.
Test the Sound and the Map
Test the sound and the map once, so the sound plays and the map shows the correct place. Switch on the left behind alert, which warns the phone when the car keys stay behind.
How Do You Find Car Keys With an iPhone or Android?
Find car keys with an iPhone or an Android phone in 4 steps, once a tag is on the key ring. The steps are the same in each finder app.
- Open the finder app, which is Find My on an iPhone, Find Hub on Android or SmartThings Find on a Galaxy phone.
- Select the tag named Car Keys.
- Tap Play Sound when the map shows the tag nearby.
- Tap Directions and travel to the pin when the tag is far away, then play the sound on arrival.
Mark the tag as lost when the pin is out of date. The finder network then alerts the phone as soon as another phone passes the car keys.
Which Phone Apps Find Car Keys?
Three phone apps find car keys that carry a tag, and 2 other types of app do not. The table below lists the 5 types of phone app, what each app finds and what each app requires before the car keys go missing.
| App | Finds | Requires Beforehand |
|---|---|---|
| Find My on an iPhone | A tagged set of car keys | An AirTag or a Find My compatible tag on the key ring |
| Find Hub on Android | A tagged set of car keys | A Find Hub compatible tag on the key ring |
| SmartThings Find on a Galaxy phone | A tagged set of car keys | A SmartTag on the key ring |
| Car maker app | The car, not the car keys | A connected car and an account |
| Key fob detector app | Nothing from a standard car key | No setup makes the app work |
No app finds car keys that carry no tag. A family location app finds a person or a phone and never a key. A GPS tracker is larger than a Bluetooth tag, runs on a subscription and suits a vehicle more than a key ring. A voice assistant on a phone or a smart speaker rings some tags on request.
Which Car Features Help a Phone Find the Keys?
Three car features help a phone find the keys, or stand in for the keys for a short time.
- Vehicle location. The car maker app shows where the car is parked, which fixes the last place the car keys were used.
- Key detection. A keyless car senses a key inside the cabin. Press the start button, and a car that starts has the key inside.
- Digital car key. A supported car accepts the phone as a key through the wallet app, so the phone unlocks and starts the car while the search continues.
The remote horn and lights in a car maker app find the car in a car park. The horn does not find the car keys.
What Do You Do if the Car Keys Stay Lost?
Take 3 steps if the car keys stay lost after the phone search.
- Decide between lost and stolen. Report stolen car keys to the police and tell the insurer, because some policies cover key replacement.
- Find the V5C. A replacement key requires proof of ownership, and the V5C registration document is the proof.
- Choose who makes the new key. A main dealer orders a key and often requires a booking and recovery of the car. A mobile auto locksmith creates the key at the car.
Car keys seen through the window of a locked car are a different job, and emergency vehicle unlocking opens the car with no new key.
Treat stolen car keys as urgent
A thief who holds the key and knows the address knows where the car is parked. Deleting the stolen key from the car memory stops that key from starting the engine.
How Does DB Car Keys Replace Lost Car Keys?
DB Car Keys replaces lost car keys at the car, in one visit, with no original key. A phone call with the make, the model and the location starts the job. The new key is created from the vehicle identification number (VIN). The blade is cut, and car key programming pairs the transponder chip to the car and deletes the lost key from the car memory. The lost car keys service runs 24 hours a day across Devon, Dorset and Somerset.
How Do You Stop Losing Car Keys?
Stop losing car keys with 5 habits.
- Keep one key spot. A hook or a tray by the door gives the car keys a single home.
- Use a key holder. A bright key ring or a lanyard makes car keys easy to see and hard to drop.
- Fit a tracker tag. A tag on the key ring lets the phone ring the car keys in seconds.
- Keep a second key. Spare car keys keep the car in use on the day the main key goes missing.
- Check at the door. A phone, wallet and keys check on leaving and on arriving catches a loss within minutes.
Frequently Asked Questions About Finding Car Keys With a Phone
Yes, finding car keys with a phone is free when a tag is already on the key ring, because the finder apps carry no charge. The free options with no tag are the location history of the phone and the car maker app.
Yes, there is an app to find car keys on every phone, the built in finder app, and the app finds car keys that carry a matching tag. Find My serves an iPhone, Find Hub serves Android and SmartThings Find serves a Galaxy phone. No app finds car keys that carry no tag.
No, key fob detector apps do not detect a standard car key. A phone has Bluetooth, wifi and NFC radios, and a standard key fob uses none of the three.
No, you cannot track car keys with GPS alone, because a standard car key has no GPS receiver. A Bluetooth tag on the key ring reports a location through nearby phones, which covers most of the same ground without a subscription.
A key tracker works at 60 to 120 metres (200 to 400 feet) from the phone in open air, according to tag makers. The finder network takes over beyond that range, and the tag reports a location from any distance once another phone passes.
Find lost car keys at home by searching the 5 usual places first, which are coat and trouser pockets, bags, the laundry basket, the sofa cushions and the car itself. Then retrace the last trip with the location history of the phone.
Yes, you can use a phone as a car key on supported cars, where a digital car key in the wallet app unlocks and starts the car. The digital car key is set up through the car maker app before the loss, so the setup does not help once the only key is gone.
Yes, a lost car key can be deleted from the car memory on many vehicles, so the lost key no longer starts the engine. Car key programming at the car removes the lost key and registers the new key in one visit.
Yes, a spare key helps when car keys are lost, because the spare keeps the car in use while the search continues. Spare car keys are cut and programmed from the working key, before an emergency happens.
Car keys locked inside the car are not lost. Emergency vehicle unlocking opens the car without damage so the keys come out.
Dean answers in plain words
Do those key finder apps really work?
They work well when the tag was on the keys before the keys went missing. I have no way to make a phone find a bare car key, and neither does any app.
I have looked everywhere. What now?
Check inside the car first, then call me. I make a new key at the car from the VIN and delete the lost one, so nobody else starts the car with it.
Based in Honiton. Working since 2009. New key created at your car, with no original key.
Upfront price before I travel. Lost keys deleted from the car memory.
Request a call back about a lost car key