How to Replace a Lexus Key Fob That Won't Turn On Or Work Correctly
If you've got an electronic key fob that doesn't turn on or work correctly it can be very frustrating. Fortunately, there are a few steps you can do to fix the issue.
First take off the emergency metal keys from the key fob. Make use of the flat end of a metal key to press the cover and make it open.
Keyless Entry System
The keyless entry system is a huge convenience for any car owner. They allow you to unlock your vehicle before you even touch a lever or open the doorway for the passenger. Some of them will even turn on the lights when you get close. Some will even open the trunk when you are carrying groceries or 10 other electronic devices based on proximity.
The key fob sends a radio frequency signal the car's receiver, which in turn sends a response code back to the vehicle. The signal only works if the keyfob is within a certain area, usually 50 feet or less. Certain systems work in a one-way fashion this means that the key fob is capable of locking or unlocking the vehicle, but not start the engine.
It is recommended that you have your keyless entry system installed by a professional, regardless of the type. A good automotive locksmith will make sure the connection is solid and secure, as well as stripping a small portion of each wire to join it. The instructions manual will give you the precise wires to use and it is vital to only use the ones that are required.
Keyless remote entry can also lock the doors after you walk away. This is beneficial for those who are forgetful and are prone to leaving their car unlocked too long.
Transponder Keys
Transponder keys or transponder chips are a common feature in modern automobiles. These chips are integrated into the head of a fob or key and contain a unique code that is linked to your vehicle's immobilizer system. The antenna ring located at the top of the ignition transmits an alert to the transponder chip when the key is inserted and turned on. The chip transmits an encoding response to the antenna ring.
Transponder chips prevent theft since the keys must be inserted correctly with the correct code to turn the car on. The keys are also much harder to duplicate, making it less likely that someone will take your car.
A reliable locksmith can create transponder keys that can be programmed to your vehicle at a fraction the cost of what you'd pay at a car dealership. They can also help you understand what type of key is in your possession and how to program it. They might also be able offer you an alternative to the transponder that was stolen or lost key. They may also assist you to with reprogramming the chip in case it is not functioning.
Duplicate Keys
A majority of people have lost their keys at least once in their lives, whether it was their car keys or house keys. If this occurs, it's uncomfortable and frustrating to find yourself locked out of your home or vehicle. To avoid this issue it is essential to keep duplicate keys on hand. These duplicates can help you open your lock if you ever get stuck.
The majority of duplicate keys have a "do duplicate" message that is stamped or engraved on them. This is a way of letting people that it's not legal to duplicate the key unless you're the owner of it. These types of keys are usually used to open padlocks, deadbolts or other door locks. They are also a great way to keep an eye on which key belongs to the particular customer.
Many people believe that the "do not duplicate" message on a key makes it more secure. However, this is not the case. The message on these keys is an indication and does not have any legal weight. It could discourage some from attempting to duplicate their keys. Many chain hardware shops do not cut keys. However, a locksmith can easily replicate the keys. In fact, they can even be cut on a lookalike blank to ensure that the duplicate is exact.
Battery Replacement
If your
Lexus key fob isn't working, it's likely have to be programmed to work with the vehicle's immobilizer. You'll have to visit the dealer or contact a locksmith who's qualified to reprogram the ECU. In general, locksmiths will cost more than a dealership, however they'll also spare you the hassle of towing your car there.
Apart from the ECU the battery could need to be replaced as well. You'll be required to replace the previous battery with a new one that matches the specifications of your car. This includes the physical dimensions, terminal configuration, and cold cranking amps (or amp-hour ratings). If you install an incorrect battery it could cause significant damage to the engine and other components.
Make sure to check the warranty prior to purchase a new battery, to determine if the price is covered. You'll also want to consider whether you need a warranty in case the battery fails during the warranty's time. Additionally, you must be aware that auto locksmiths often don't carry the necessary tools to program keys, and you'll have to have a dealer or online key programmer come in and program the
key lexus for you. It's also important to let them what type of key (chip or intelligent, or remote "push-to-start"), the year of your car, and the VIN should you be able to.