Car Key Fob Repairs
Today's key fobs are more than just a way to unlock and start cars. But that extra complexity can cause costly repairs when one of them fails.
The good news is that most fobs use flat watch-style batteries that are simple to replace at home. It is possible that a reset will get yours working again.
Battery Replacement
The most common reason that a key fob doesn't work is due to the battery being dead. It's simple to repair and worth a try before you spend money on a replacement fob. Simply drive your car to an hardware or auto parts retailer that stocks button cell batteries and pick up an alternative. You can also consult your owner's guide (or YouTube for videos explaining how to replace the battery) to get specific instructions on how to remove and replace the battery inside your fob.
Most fobs have two halves that snap together -- you'll need to gently pull the sides apart to access the battery. You'll need a small flat-bladed screwdriver or another tool with a blade that is thin. It may be helpful to look for a notch on the bottom of the fob that you can use to wedge your tool between. It is also advisable to keep an eye out for small pieces that may be loosened while working.
When you have your new battery, insert it the same way that you removed the previous one. Make sure that the positive (+) side is facing upwards towards the buttons and that the negative (-) side of the battery is aligned correctly with the markings in the battery compartment of your fob.
Push a button to test the fob. If it doesn't work, you may have an issue with your car that requires a professional to repair or replace.
Some key fobs are difficult to open, and the contacts could be fragile and easily corrosion-prone. In these situations the best choice is to consult a car specialist or a dealer. If you need to replace batteries, you should be very gentle and follow the instructions specifically in your owner's manual. You might be able to find a similar battery at a discounter or a big-box retailer but you'll have to refer to your owner's manual to ensure that it's the right one for your vehicle.
Replace the internal key
To guard against theft, many key fobs have a mechanical key hidden inside. When the battery in the fob dies it will leave an internal key that is blank which can open doors and trunks (and in some cases, start certain vehicles). Many people don't realize this however, they can save themselves having to go to the dealership by simply replacing the fob battery. The flat watch-style batteries are used in most modern fobs. They can be found in hardware stores and auto parts stores. It is crucial to choose the right type of battery. A wrong type of battery can harm the electronic circuitry, which can cause the fob to fail earlier.
If you change the battery, and the problem persists it could be an indication that something else is going on in your vehicle. If you have an owner's guide and you're not sure, try to determine if a reset procedure is available to restore the fob's original programming. If this isn't working, you'll need to visit a dealership or an independent shop that specializes in security systems for vehicles and key fob programming.
Fobs may also fail due to faulty transmitter receivers. They are usually found close to the steering wheel, or on the dashboard. They transmit signals that allow you to unlock your car and begin it using the fob. You may have to move closer to the car to get it to work.
A professional may need to open the case of the fob to replace the transmitter. A simple screwdriver is enough to get the job done however some fobs come with complex release mechanisms that require a specialized tool or specialized equipment that is available only at a dealer. This job should be performed by a certified mechanic to avoid damaging the fob as well as yourself.
Reprogramming the Key
Most of the time, a key fob that isn't working just requires a new battery. Since these batteries are inexpensive and easily available at pharmacies and home improvement stores, it's a good first step before investing in the purchase of a new car key fob.
Alternatively, you may be able to reprogram the fob on your own by following the steps. This process can vary between automobiles, so consult your owner's guide and research your specific model. One key fob could require that the ignition be turned on while reprogramming. One key fob may require the key to be inserted multiple times.
The basic procedure is simple. First, make sure that the new battery is in place. Then, get in the driver's seat and close all doors, with the exception of the driver's side door. This will ensure the new key is communicating with the vehicle in a correct manner. After that, put the old key back in the ignition and turn it to the ON position, but don't start the engine. Press the lock button while aiming the fob toward the receiver of the transmission. It is usually located on the left side, just above the mirror. Within a short time frame the key will signal to the vehicle that it's programmed by turning off the doors' locks or emitting an emitted sound. broken car key repair can be difficult, so it's important to be attentive to the timing and to not over-press the key button.
If the key fob still does not work, try reprogramming it again with new batteries. If the problem persists you might want to visit your car dealer or locksmith. A professional will have the tools and equipment to reprogram your car's fob or clone a new key if it's needed.
Genesky says he's able to program newer fobs for $200-$250, depending on the vehicle. However, he's had to turn away customers with European models due to the fact that there's no equipment required. Fortunately, most aftermarket fobs are programmable but it's always best to check with a car dealer first to determine the price.
How do I get a new fob
If your key fob cannot be repaired, you might need to buy another one. Based on the model and make, an auto locksmith or a dealership may be able to help. The dealership is likely to be the most expensive choice to replace your fob, but it also has the tools and software necessary to program your car properly. Many independent locksmiths provide a new car key fob at an affordable price.
It is a good thing to attempt to reset the fob you have before you make the decision to purchase another one. Your owner's manual should outline the proper procedure for reset, which is usually just pushing a few buttons that restores it to factory programming.
It is also a good idea to read your owner's manual and warranty information before you decide the best place to get the replacement of your key fob. If your car is under warranty or you have a car-insurance policy or auto club membership that includes bumper-to-bumper coverage, you may be able to receive some reimbursement for the cost of an entirely new fob.
Finding the right location to purchase the fob you need can be difficult. It is possible to visit the dealer for this service if are driving a brand new car and are looking to feel secure knowing that your key fobs are functioning correctly. If you're looking for a more affordable option, it is often possible to find a locksmith who is independent who can offer the same services for a significantly lower price.
A locksmith professional is a good option for those who aren't comfortable with this kind of work. They are trained and equipped to repair or replace key fobs for cars of all kinds, and can do so quickly. A locksmith can also come to your office or home which is a great option for a lot of people. They can even cut and program keys on-site in case you've lost keys, which is great for those who prefer not to leave their cars unattended.
