Tustin Locksmith ServiceMobile locksmith · Tustin, CA Call 714-548-3101

Car key replacement: types, steps and tips

By the Tustin Locksmith Service team · Published · Updated

From basic metal keys to smart fobs, here is how replacement works for each type.

  • Quote before work
  • Mobile service
  • All major cards
Illustration of three car keys: a basic key, a transponder key and a smart fob

Replacing a car key used to mean a trip to the hardware store. Today most keys contain electronics, so replacement involves cutting and programming.

Types of car keys

  • Basic metal keys on older vehicles, cut to match the lock.
  • Transponder keys with a chip the car must recognise before it starts.
  • Laser-cut keys with a milled groove, harder to copy.
  • Remote and smart keys that lock, unlock and sometimes start the car without a blade.

How replacement works

We identify the key type from the make, model and year, cut the blade from the lock or key code, then program the chip or fob to the vehicle. Many vehicles can be done on site. A few newer models need dealer-only software, and we will tell you before we come out.

What to have ready

  • Photo ID
  • Vehicle registration or title
  • The vehicle's location and access
  • The make, model and year

Get a spare

Having a spare made while we are there costs less than starting from scratch after losing the last one. Read more on our automotive locksmith page.

Frequently asked questions

Can you program a fob I bought online?

Sometimes. Many aftermarket fobs work, but some can't be programmed. Ask us before you buy.

Need a locksmith in Tustin?

Call now to check availability and get a price before any work begins.

Call 714-548-3101
Call 714-548-3101Text us