The system
How the Sorento key has changed
Kia introduced the Sorento in the United States for the 2003 model year as a truck based SUV with real off road ability. Around 2011 it was redesigned as a unibody crossover, with an optional third row. Another redesign arrived for 2016, and the current generation, introduced for 2021, added hybrid and plug in hybrid versions.
That first body on frame Sorento is from an era of simple keys: a steel blade for the ignition and doors, with lock buttons on the head or on a separate transmitter. Most of the remaining ones have high mileage, and the wear shows in the ignition as much as in the key.
When the Sorento became a crossover, Kia gave many of them a fold out key, the kind whose blade tucks into the remote and snaps out with a button. The better equipped trims went to a proximity fob with a start button on the dash. Both styles appear in the same model years, so we always ask which one yours has.
The 2016 generation kept that two way split and added more convenience features to the fob side, including on many vehicles a liftgate that opens by itself when you stand behind the SUV with the fob in your pocket. The 2021 generation, including the hybrid and plug in hybrid, uses proximity fobs almost across the board, and some trims can also be opened and started with a phone through Kia's app.
A number of turn key Sorentos from the 2010s are also among the Kia models built for American buyers without an engine immobilizer. Our Tucson key page covers that story in detail. What matters for a Sorento owner is that a lost blade on one of those vehicles stays dangerous until the lock cylinders change.
Inside every proximity fob is a slim mechanical insert for the driver door, there for the evening when the coin battery gives out.
Tell us the year, whether it is a hybrid or plug in, and whether you press a start button, and we can plan the visit.
Systems by generation
From body on frame to three row hybrid: four Sorento generations and their keys
A first generation Sorento and a current plug in hybrid Sorento share a name and not much else. Between them sit two crossover generations where the same model year can have a fold out key or a proximity fob depending on trim. That is the whole reason we ask so many questions before we load the van.
Treat the table as a general map. Kia moved features between trims as the years went on, and a Sorento with several owners behind it may carry a key that was never original to it. We verify at the vehicle.
| Approximate years | Common key types | How it starts | What the job usually involves |
|---|---|---|---|
| 2003 to 2009 | Steel key, buttons on the head or a separate transmitter | Turn key | Cut to code, pair any transmitter |
| About 2011 to 2015 | Fold out key on many trims, proximity fob on higher trims | Turn key or push button by trim | Confirm trim and ignition, then make the matching style |
| 2016 to 2020 | Fold out key or proximity fob by trim | Turn key or push button by trim | Same split, with hands free liftgate fobs on many |
| 2021 onward, including hybrid and plug in | Proximity fob, phone key on some trims | Push button | Fob pairing under Kia's current procedures |
First generation Sorentos were often bought to tow and haul, and their ignition cylinders show it. A key cut fresh to the factory code will turn more easily than a worn copy, but if the cylinder itself has worn loose, the key may still catch. We will point that out instead of selling you a second key that behaves the same way.
On the crossover Sorentos with a fold out key, the blade must fit the doors and ignition, the remote must be paired for locks, alarm and liftgate, and on vehicles that do carry an immobilizer the chip must be accepted. On builds without an immobilizer, the blade alone will crank and run the engine.
On proximity fob Sorentos, pairing covers walk up entry, the start button and, where fitted, the hands free liftgate, which only opens when it senses an accepted fob behind the vehicle. A fob that has not been paired correctly will start the engine but leave the liftgate ignoring you, so we test it by standing behind the SUV.
On the 2021 and newer Sorento, including the hybrids, adding a fob while one still works is the smoother job. With every fob lost on a very recent vehicle, we say up front whether it can be done at your address or needs Kia's service lane.
Magnetic key boxes and hidden spares
Some owners hide a spare in a magnetic box under the bumper or in the wheel well. On any vehicle that is risky, and on a turn key Sorento without an immobilizer it is especially so, because a found key is a working key. A spare kept at home, or with a trusted neighbor, protects you from lockouts without leaving a key on the vehicle itself.
Towing and the key
Sorentos are often used to tow small campers, boats and utility trailers. If the key is lost while a trailer is attached, tell us where the vehicle and trailer are and how they are parked. We can usually work on the SUV without disturbing the trailer, but it helps to know about tight spots, soft ground or a campground layout in advance.
New drivers and the family Sorento
A three row SUV is often the vehicle a teenager learns on, and it is common for a household to want a key for the new driver. That is a good moment to take stock. How many keys exist now, and does everyone who holds one still need it? Is there an old key from a previous owner, a former nanny or a relative who moved away? On a proximity fob Sorento, pairing only the fobs actually in the family's hands clears out the rest.
New drivers lose keys more often than experienced ones, simply because they are still building the habit. A bright key tag, a dedicated hook by the door, and a rule that the key never goes in a sports bag all help. It is also worth showing every driver where the mechanical insert hides inside the fob and how to open the driver door with it, so a dead battery at night is an inconvenience rather than a crisis.
Keeping a first generation Sorento going
The original body on frame Sorento has a loyal following. These SUVs were built to work, and many are still pulling small trailers or serving as a second vehicle on a farm or a weekend property. Their owners tend to call when the key has become so worn that it takes several tries to start, or when the last key has finally snapped at the head.
For these vehicles we avoid duplicating the worn key. A copy of a worn key is a worn key. Instead we work from the factory code or read the cuts from a lock, which gives a blade that matches the cylinders as they were built. If the ignition cylinder has worn along with the key, we tell you, because a new key alone will not fully cure a loose cylinder.
It is also worth asking whether the separate transmitter still matters to you. Many owners of these older Sorentos stopped using the remote years ago and lock the doors by hand. If that is you, a well cut key may be all you need, which keeps the visit short. If you do want remote locking back, the transmitter can usually be paired again or replaced as a separate step.
What to have ready
Find the model year on the registration and the trim on the liftgate. Note whether it is gas, hybrid or plug in, and whether the dash has a start button. The person named on the registration should have a license handy, or send a signed note if someone else will meet us. Call (302) 534-0150 with the address anywhere in New Castle or Kent county.
Two routes
Locksmith or Kia dealer for a Sorento key?
The Kia service desk can order a key by vehicle identification number, but the Sorento needs to get there. With no working key that means a flatbed, and all wheel drive Sorentos should not be dragged on two wheels.
We bring the key to the SUV instead. Common Sorento fold out keys and proximity fobs, a key machine and the pairing equipment travel with us, so a supported Sorento is finished in the driveway or campground where it sits.
Book Kia when the smart key receiver or body control unit was replaced, when a recall or campaign letter covers the key system, or when a brand new Sorento needs a registration done only through the factory terminal.
Kia also holds the anti theft software for affected turn key vehicles. We can make the key tonight, and the dealer can load the software whenever it fits your schedule.
You will know before we cut whether you are getting a Kia branded key or a quality aftermarket one, and the button layout will match what the SUV supports.
If a household needs keys for three or four drivers, that can all happen in one visit, which is easier on everyone than several dealer trips.
When a particular Sorento is beyond what can be done at the curb, you will hear that before we leave the shop.
Diagnosis
Common Sorento key problems
A hands free liftgate that opens on its own when you walk past the back of the SUV is doing what it was built to do. It senses the fob. If that is a nuisance, the feature can usually be turned off in the vehicle settings rather than by changing the key.
A hands free liftgate that never opens, while the button on the fob still works, usually means the feature is switched off in settings or the fob is not being sensed behind the vehicle. Check the settings first.
If you get out of a running push button Sorento with the fob, the engine keeps running and the dash warns that the key is not detected. The driver left behind cannot restart it once it is shut off. Families swapping drivers in a parking lot run into this often.
Trailer wiring faults, dash cameras and phone chargers left plugged in can drain the battery overnight. A drained battery can make a good fob look dead.
First generation Sorentos with a separate transmitter sometimes lose the pairing after a battery change. The transmitter can be paired again; it does not always need replacing.
Fold out keys eventually loosen at the pivot and the blade starts to wobble. Moving the electronics into a new housing restores the snap.
After a theft attempt on a turn key Sorento, the broken column cover and cylinder get fixed first, then keys are cut for the cylinder that is fitted.
A coin battery near the end of its life shows up as fob range shrinking to a few feet. Replacing it is a five minute job with the right size battery.
Delaware use
Where Sorentos get stranded around here
Campgrounds and boat launches near Delaware City and in Kent county, youth sports complexes in Middletown and Dover, school lots in Glasgow and Hockessin, and busy shopping centers near Christiana and along Route 13.
Before service
What to have ready for a Sorento
Sorento calls come from families, towing weekenders and commuters who want the SUV back in service and want honest advice about security.
A picture of the surviving key, if any, shows us fold out key or proximity fob and whether a liftgate button is on it.
Tell us if a trailer is hitched and how the SUV and trailer are parked, so we can plan where our van goes.
Mention a hands free liftgate if the vehicle has one. We test it at the back of the SUV before we finish.
List every driver who carries a key. That number decides how many fobs we pair on a push button Sorento.
If a theft attempt damaged the steering column, say so on the call. It changes the order of work and the parts we bring.
Aftermarket remote starters or trailer brake controllers wired into the dash are worth mentioning, since they sometimes share wiring with the ignition area.
Have the registration or title with a matching license for the named owner, or a signed note from them if a family member is meeting us.
Each key is tried on the doors, the liftgate, the alarm and the start before the visit ends.
Straight answers
Kia Sorento key replacement FAQ
Can a Sorento key be made if every key is gone?
For most Sorento years, yes. Turn key Sorentos need the blade cut from the vehicle's code, the remote paired, and the chip accepted on builds that have an immobilizer. Push button Sorentos need a proximity fob paired and its door insert cut. A very new Sorento with nothing left can occasionally require Kia's own equipment. Give us the year, trim and start method and we will tell you which applies.
Should I keep a spare Sorento key in a magnetic box?
We do not recommend it. A key hidden on the vehicle is easy for someone else to find, and on a turn key Sorento without an immobilizer, a found key can start the engine. Keep the spare at home or with someone you trust instead.
Why does my Sorento liftgate open when I walk behind it?
Many Sorentos have a hands free liftgate that opens when it senses an accepted fob behind the vehicle for a few seconds. It is a feature, not a fault. It can usually be turned off in the vehicle settings menu if it opens more often than you want.
Is the hybrid Sorento key different from the gas model?
The hybrid and plug in hybrid use proximity fobs much like the gas model of the same generation, but specific parts should be confirmed separately. Tell us exactly which version you drive so we bring a compatible fob.
The Sorento kept running after my spouse took the fob. What happened?
A push button Sorento does not shut off when the fob leaves. It warns that the key is not detected and keeps running until someone turns it off. After that, it cannot be restarted without an accepted fob inside. A second fob for each driver avoids the problem.
A key was stolen from my Sorento owner's bag. What now?
On a push button Sorento, pair the fobs you still hold so the stolen one is dropped. On a turn key Sorento without an immobilizer, the stolen blade can still start the engine, so the ignition and door cylinders need rekeying or replacing. If the bag held your address, look at the house locks too.
When is Kia the right place for Sorento keys?
Go to Kia for the anti theft software, after a smart key or body control module has been replaced, for any open campaign affecting the key system, and for late Sorentos whose pairing is limited to the factory terminal. Other jobs can normally be done wherever the SUV is parked.
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