How To Program A Used Lexus Key Fob

The lock/unlock method cannot be used when a key is being replaced or when a new spare is being obtained. The new fob will need to be software-programmed instead. Before we begin, let’s take a moment to pause. A new key fob needs to be programmed using specialist tools. You require an OBD2-to-USB cable in particular, and it must support the VIM communication protocol. A functional key remote is also required. The method won’t function without each of these resources. The good thing is that you can always visit a licensed mechanic with the new key. Even if you’ll be compensated for a service, you can rely on it working because they’ll have the necessary tools.

The Toyota TIS Techstream program will first need to be installed on your computer. Technically, you can accomplish this with any Windows machine, but a laptop will make things lot simpler. In the end, a cable will connect the car and the computer directly.

You’re going to use your OBD2 cable to connect the car to the laptop since your software is already installed and operational. You need to push the Engine Start button twice without depressing the gas pedal in order to get the two talking to one another. Without actually starting the engine, this will activate the vehicle’s computer.

You ought to have the option to connect to your car in your TechSTream program. Your car will be automatically detected by the program, and you may use the information that is shown to verify that your connection is strong.

The main menu is now visible on the screen. You should utilize it to access Smart Access. You then choose Utility, followed by Smart Code Registration.

obey the directions displayed on the screen. They will guide you through the registration process for the new fob. Both keys will be required for a number of processes that must be completed before the new fob can be registered and used. You must register each key one at a time if you need to register more than one.

DIY Key Fob Programming

You might be able to program a replacement yourself, depending on the make and type of your vehicle.

Various automakers include instructions in their owner’s manuals on how to program a key fob on their own vehicles. In many circumstances, information can be available online. The problem is that in order to complete the process quickly or at all, you might require two functional key fobs.

Therefore, it is wise to acquire and set up an extra remote before you require it. Additionally, it’s a wise move because most used-vehicle buyers, particularly auto dealers, would pay extra for a car that has at least two functional sets of keys or key fobs. Therefore, having a spare key will not only be useful when you need it, but it will also benefit you in the long run.

After-Market Key Fobs

You may be able to buy an after-market key fob via a locksmith or online if your automobile is more than five years old. These sorts of fobs range in quality, but they are less expensive than other options.


If you have the option of receiving your replacement key from a locksmith or the dealership, the latter may be less expensive. Before making a choice, be sure to inquire about prices with your nearby vehicle dealership.

Is it possible to program a Lexus key?

Replacement Lexus keys are available at the dealership or with the help of a competent locksmith in your region.

The primary distinction between the two is that a car locksmith will come to you, whereas you must tow your car to the dealer to get a key created there.

Program a Lexus Key

Lexus auto keys and fobs are available from local locksmiths, online, or in the parts department of a Lexus dealer near you.

You still need to cut the blade, program the transponder chip, and enable the remote/keyless functionality after purchasing a replacement key or Lexus fob.

A Lexus smart key must be programmed using diagnostic equipment. Customers who only had one key and decided to order a spare online might need to get in touch with a local automotive locksmith to have the key cut and programmed.

Lexus Key Replacement Cost

There are four different price ranges for a locksmith to replace a lost Lexus key.

  • 19901997 ($120150) (basic key, no chip
  • 19972003 (Early transponder, Requires a new ECU or Reflash of existing) $280$400

Can an old key fob be programmed to operate a different vehicle?

I’m here. As long as the key is the same for each vehicle, you can reprogram a key fob to work with that vehicle. In this situation, if the key can open the doors, you would need to take the following actions:

  • Put the key in the ignition switch and attempt to start the engine if the doors will lock.
  • While simultaneously using the remote and your hand to unlock the door, turn the key to the ON position.
  • In the OFF position, turn the key.
  • Remove the ignition switch’s key.
  • After unplugging the vehicle’s battery wires, wait 30 seconds, then reconnect them (reset computer).
  • Try using the remote to unlock the doors while the door is closed after taking the key out of the lock.
  • the driver door with the key.
  • Push the lock and unlock buttons on the key fob simultaneously with locking and unlocking the door with the key – (do this 3 times).
  • Turn the key to the ON position after inserting it into the ignition.
  • Locking the door simultaneously with your hand and the remote requires turning the key to the ON position.
  • The key fob’s battery should be removed and then replaced (unless you put in a new battery)

After completing these procedures, the key fob has been successfully reprogrammed to your car if the engine starts. If the key does not lock the doors or start the engine, it may be completely different, and you will need to get a new key. Seek out a specialist, like one from Your Mechanic, if you require more help with your keyless entry system.

Can a key fob be programmed without visiting the dealership?

The programming process is detailed in the owner’s manual for the vehicle, but the vehicle must be present, he added. Be advised that most customer-programmable key fobs, regardless of brand, require two active, functional keys in order to program a third new key without visiting the dealer, according to Yu.

O’Reilly does key fobs program?

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Over 20 million keys are typically lost by Americans each year! You know how frustrating it can be until you get a replacement key produced if you’ve ever lost the key to your house, apartment, car, motorcycle, or RV and didn’t have a spare. Since hiring a professional locksmith can occasionally be expensive, you might be wondering where else you can order keys.

Car keys of many kinds and models are produced by O’Reilly Auto Parts. They can configure your remote keyless entry system and transponder key as well as build and sell key fobs. The keys can be ordered online.

Since there are thousands of O’Reilly Auto Parts locations around the country, going there to get a key produced is quicker and easier than finding a locksmith. They have self-serve kiosks and provide key-cutting services. Discover what keys O’Reilly Auto Parts makes, sells, and how to order one by reading on.

Replace the batteries inside the key fobs

If you haven’t changed the battery in the key fob(s) in a while, do so now before continuing. When you try to reprogram a key fob with a defective battery, it can be a real pain. The batteries are often inexpensive and simple to replace. If you are unsure how to change them, consult your owner’s manual.

Get inside the car

With your car keys and the remote in hand, go in the driver’s seat and lock all the doors. Closing the doors is crucial because if you leave one open, it can disrupt the procedure.

Turn on the ignition

Once seated, turn the key to the “On” position in the ignition to turn the electrical systems on. Do not start the engine and double-check that the ignition is not in the radio mode.

Press the lock button on the remote key

Turn the key back to the “Off” position while holding down the lock button on the fob. At least three times, go through this process, finishing with the key in the “On” position. This notifies your electronic control units that the signal is coming from your key in the ignition and does save the info later. How to Start & Unlock a Car With a Dead Key Fob

Listen for a Lock Sound

You will hear the lock sound once you have completed the aforementioned steps. You have now accessed the programming mode, as indicated by this. Press the lock button once more in the following five seconds to complete the programming.

Programming additional remotes

If there are other remotes, program them successfully by pressing the “Lock” button within 10 seconds after entering the programming mode.

Step out from your car and test the result

Close all doors as you exit the vehicle and take your key fobs with you. Test the functionality of both unlocks with each of your key fobs that were programmed.

What happens if your Lexus key is lost?

You will need to have a fully new Keyless Entry / Ignition system installed if you don’t have a key that starts your Lexus. I’m not sure how Lexus names the component that needs to be replaced, but it could cost you $700 to $2,000 to do so. for the mere loss of a key!

According to the Lexus techs I’ve spoken to, the explanation is that after you’ve lost a “master key” (basically a functional key), it’s impossible to reprogram or reset a new key to the ignition transponder system. No scanner or computer may be plugged into the automobile to access any of the important programming options. A key must be manually programmed. For instance, if you already have a functioning key, you can program a spare by inserting the working key into the ignition, turning it on and off a few times, opening and closing doors, jumping up and down, saying the word “Lexus” ten times, and performing a few other circus-style maneuvers. Your Lexus won’t enter “key programming mode” if you don’t have the proper key. Hence the expensive new keyless entry and ignition purchase from the dealer.

Therefore, if you own a Lexus, PLEASE make sure you maintain a spare key somewhere, and if you use it, buy a new spare key right away. Long-term, this will save you a ton of money!

Want a professional to configure the remote for you since you’re having problems doing it yourself? Find a qualified key fob installer in your neighborhood by typing your city or zip code in the search box below.