Frequently asked questions
Answers to the most common questions we get about car keys, programming, ignitions, and how our service works.
What does Knox Car Keys do?
We provide mobile automotive key and ignition services. We come to your location to cut and program car keys, repair or replace ignitions, and extract broken keys. We do not offer lockout or door unlocking services
How does your service work?
Call us or fill out our contact form. You'll speak with a real person through our answering service. A technician will call you back to learn about your vehicle and your situation, put together a quote, and schedule a time that works for you. We come to your location and handle everything on-site.
What areas do you serve?
We serve Knoxville, Knox County, and surrounding areas. We come to you - home, office, parking lot - wherever your vehicle is.
What are your hours?
Monday - Friday: 8am - 6pm. Saturday: 8am - 3pm. Sunday: By appointment only.
What vehicles do you work on?
We service most major makes and models including Ford, Chevy, GMC, Honda, Toyota, Nissan, Jeep, Dodge, Chrysler, Hyundai, Kia, Subaru, Mazda, and many others. Call us with your vehicle's year, make, and model and we'll let you know.
Do you offer a warranty?
Yes. All work and fobs come with a 6-month warranty.
Can you make a key if I've lost all my keys?
Yes. We can generate a new key from scratch using your vehicle's information - no original key needed. This is called key origination and it's one of our core services.
How long does a key replacement take?
Most replacements are completed in under an hour on-site. Timing depends on the vehicle and key type.
Is it cheaper than the dealership?
In most cases, yes - and you save on the tow since we come to you. Call us for a quote and compare.
Can you make keys for any car?
We service most major makes and models. The best way to find out is to call us with your vehicle information.
What is key programming?
Most modern car keys contain a chip that has to be electronically paired with your vehicle's immobilizer system. Without this programming step, the key might open the door but it won't start the engine.
Can you program a key I bought online?
Sometimes. Not all aftermarket keys are compatible with every vehicle, and some use lower-quality chips that don't hold programming. Call us before you buy anything - we can advise you on what will work or supply the right key ourselves.
Why didn't my hardware store key work?
Because it wasn't programmed. Hardware stores can cut the physical blade, but they can't program the transponder chip. Without programming, the engine won't start.
Do you need my car present to program a key?
Yes. The key's chip needs to be paired with your specific vehicle's onboard system.
How do I know if it's my key or my ignition?
It's hard to tell without looking at it. The key could be worn down, or the ignition cylinder could be failing. We diagnose the issue on-site so you know exactly what needs to be fixed before any work is done.
Can you fix an ignition without replacing it?
In many cases, yes. If the cylinder is repairable, we repair it. We only recommend replacement when the wear or damage is beyond what a repair can solve.
Will I need new keys after an ignition replacement?
Usually, yes. A new ignition cylinder comes with a new key configuration. We cut and program new keys on-site as part of the replacement.
Do I need a tow truck to get my ignition fixed?
No. We come to your vehicle and handle the repair or replacement on-site.
What is a transponder key?
A transponder key has a small chip embedded in the plastic head. The chip sends a signal to the vehicle's immobilizer when you turn the ignition. If the signal matches, the engine starts. If it doesn't, the engine stays locked. Most vehicles built after the mid-1990s use this system.
What is a fobik key?
A fobik combines a remote and an ignition key into one unit. Instead of a metal blade, it has a flat plug that inserts into a slot on the dashboard. Most common on Chrysler, Dodge, and Jeep vehicles.
What is a push-to-start smart key?
A smart key is a proximity fob that stays in your pocket. The car detects it automatically and starts with the push of a button. No key blade, no ignition cylinder.
How do I know what type of key my car uses?
The easiest way is to call us with your vehicle's year, make, and model and we'll tell you. You can also check our key types guide for visual references.
How much does a new key cost?
Pricing depends on your vehicle and the type of key it uses. We provide a clear quote before any work is scheduled.
Do you charge for the estimate?
No. We gather your vehicle information over the phone and provide a quote before scheduling any work.
What forms of payment do you accept?
A smart key is a proximity fob that stays in your pocket. The car detects it automatically and starts with the push of a button. No key blade, no ignition cylinder.
What if I'm not sure what I need?
That's fine. Call us and describe what's going on. We'll ask a few questions about your vehicle and your situation and point you in the right direction.
Need a key programmed? We'll come to you.
Need a key programmed? We'll come to you. Skip the dealer. Skip the guesswork. Call Knox Car Keys and we'll handle the programming on-site.
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Operation Hours
Monday - Friday : 8am - 6pm
Saturday : 8am - 3pm
Sunday : By appointment only