Help Center
Car Key and Key Fob Programming Explained
A new car key is not just a piece of cut metal. Here is what programming is, which keys need it, and what to tell a locksmith when you call.
What is car key programming?
Most cars made since the late 1990s have an anti-theft system that recognizes a chip in the key. If the car does not recognize the chip, it will not start, even if the blade turns in the ignition.
Programming pairs a new key or fob with your car so it is accepted. It is done with diagnostic equipment connected to the car.
The main types of car keys
What you have decides what the job involves.
Basic metal key
Common on older cars. It is cut to fit and has no chip, so it needs no programming.
Transponder key
A key with a chip in the head. It has to be cut and programmed. See transponder key programming.
Remote key or fob
Adds buttons for lock, unlock and trunk. The remote is paired with the car as well. See key fob replacement.
Smart key or push-to-start
A proximity key that lets you start the car with a button. These are programmed to the car and can be the most involved.
Not sure what yours is? Tell us the year, make and model when you call and we will ask a couple of quick questions.
Programming, cutting and batteries
Three things that often get mixed up.
Cutting is not programming
A blade that fits the lock may still not start a car with an anti-theft chip.
A dead fob battery is usually not a programming job
In many cases changing the battery is all a fob needs. If the fob still fails, call us.
Extra keys are easier than first keys
Making a spare while you still have a working key is simpler than starting from nothing. See car key copying.
Some cars are harder than others
Newer and specialty vehicles can need more steps. Ask us if yours can be done and we will answer honestly.
When you need programming
You will likely need it when:
- You lost every key and need a new one.
- You want a spare key or an extra fob.
- Your key or fob was damaged or stopped working.
- You bought a used car and want keys that only you hold.
Key programming by town
We come to you in Durham, Chapel Hill and nearby Wake County. Find your town:
Key Programming Questions
What does it mean to program a car key?
It pairs the chip in a key or fob with your car so the car accepts it and will start.
Does every car key need programming?
No. Many older cars use basic keys that only need cutting. Newer cars almost always need programming.
Can a locksmith program a key at my car?
Yes, for many vehicles. A mobile locksmith brings the equipment to your car. Call (919) 769-3432 with your year, make and model.
Do I need to reprogram after a battery change?
In many cases no. A new battery alone usually does not require programming.
How much will it cost?
The price depends on the job, your vehicle or lock, and where you are. Call (919) 769-3432, tell us what is going on, and you will hear the price before we start work.
What are your hours?
We work 7:00 AM to 11:00 PM, seven days a week.
Do you serve my town?
Durham Locksmith serves Durham, Chapel Hill, Carrboro, Hillsborough, Morrisville, Research Triangle Park, Cary and Apex, plus Knightdale, Wake Forest, Fuquay-Varina, Clayton, Zebulon and Garner in NC.
Need a Car Key Programmed?
Call Durham Locksmith with your car year, make and model and get a price before we head out.
(919) 769-3432