The Biggest Issue With Can You Replace A Car Key Fob, And What You Can Do To Fix It

· 6 min read
The Biggest Issue With Can You Replace A Car Key Fob, And What You Can Do To Fix It

How to Replace a Car Key Fob

You're probably used to key fobs when you drive a modern car. These handy devices lock and unlock your vehicle's doors, but they also offer other convenience and security features.

But sometimes these key fobs break or just stop working. CR talked to dealerships and other experts to figure out the best way to replace a key fob, and to get some tips to save money.

Dead Battery

Many modern vehicles come with key fobs which can be used to open the doors and start the engine by pressing the button. This is known as keyless entry and makes driving a lot more efficient than having to juggle keys or trying to locate the appropriate one in your wallet when you're driving. Fobs also can do other things, like roll down the windows or call and park the car for you.

If you lose your key fob or it's dead getting a replacement could be a hassle and costly. The first thing to do is to look over the basic warranty of your vehicle, insurance or roadside assistance coverage to determine whether it covers replacement. If you don't have this coverage, your next best option is to call locksmith. They have the same expertise as a car dealer and can solve your problem faster and more affordable.

The easiest solution to fix your dead key fob, is by replacing the batteries. The coin-shaped batteries are sold at hardware stores, big-box retailers, and on the internet for $10 or less. If you are adept, you can replace the battery on your own. Follow the steps in the owner's manual.

In some cases it is possible that a new battery won't solve the issue and you'll need to have it reprogrammed. This process is typically done by a dealer but is available on YouTube and in some owner's manuals, too.

A qualified locksmith will be able to reprogram your key fob and make you any new keys that you need. They'll do it at the cost of a fraction of what you'd pay for a dealer. They may not have the latest technology or be available for all makes and models. Check their credentials before hiring.

Another option is to download an app for your smartphone that allows you to open and start the vehicle using an Bluetooth connection. These apps are available on most popular smartphones. They can be downloaded either from the manufacturer's site or a third party service. These apps may not be as secure as physical key fobs, but they allow you to drive your vehicle while waiting for the arrival of a replacement.

Locked out

Since their introduction in 1990 keys for cars are nowadays essential to unlock doors and start cars. However, these devices may have issues and stop working due to different reasons. Keep an extra key or fob in your car always in case you need to avoid being locked out. You can unlock your car using an app on your phone or by manually unlocking the door. You should also make it a habit to check for your keys before locking your vehicle as part of your routine.

A specialized auto locksmith will assist you if you've lost or misplaced your key fob, or if it is out of sync. For a small charge, they'll resync your fob to your vehicle. Locksmiths are also able to cut new keys for you in the event that yours aren't working.

A locksmith could be more affordable than dealers in the case of changing the car key, particularly in the event that your car is newer. Dealers may charge as high as $400 to replace key fobs for certain brands of cars. These models are protected with advanced digital encryption. Some dealers only have the technology to reprogram a brand-new key fob through their service centers, according to Consumer Reports automotive editor Mel Yu.

It's not just expensive however, it can also be stressful and anxious to be locked out of your vehicle. It's best to be prepared by keeping a spare key on hand or transferring one to a family or friend member for safekeeping. You can also set up a car-tracking device with remote locking features as an additional measure of security.

You can also call roadside assistance to receive help if you accidentally lock your keys inside your car. The majority of roadside assistance services connect you with a mobile locksmith that can quickly unlock your door at a fraction of the cost it costs. Some of these services can even help you start your car if it won't start without the key fob.

Unresponsive Button

Key fobs used to mean a decorative plastic piece attached to your car keys, but since remote entry systems became more common in the late 1990s and have become an integral part of your vehicle. Fobs are usually black or dark gray plastic with buttons. They allow you to open your door, and even set off an alarm but, unlike traditional metal keys, they aren't able to be inserted into the ignition to drive. The fob is typically attached to a mechanical or electronic key. In some cases, such as Toyota models that have both the key and the remote are contained in one unit.

The key fob sends the radio frequency signal which is aligned with the receiver unit of the vehicle. This is how a car knows when a driver is trying enter it. Certain fobs have additional features, such as the ability of lowering the windows from a distance.

You can purchase replacement car key fobs at an auto parts or dealership store. However, you will need to have them professionally programmed in order to work with your vehicle. The reason is that most automobile manufacturers have their own unique code system and to prepare a replacement fob with the same specifications as the current one requires the expertise of a dealer in security and technology.

Some newer vehicles come with a special key that can be used to call the vehicle and park it automatically. They are generally more expensive than standard fobs, but they provide a lot more convenience.

Fobs are often the most expensive part to replace, and some kinds require professional programming. This can be done by a car dealership or, more frequently, an auto locksmith who is equipped with the right equipment and software. A dealership is your best choice if you have an older car. They can program the majority of key fobs at an affordable price and in less than one hour.

Some older fobs are available from a hardware shop and can be self-programmed, however this is rare for most modern automobiles. If you don't have an alternative fob that can be used with your vehicle, it is always best to go to the dealership from which you purchased the car. Most will give you discounts for being a loyal customer, which is fantastic if your car key fob has gone out of service.

Other Problems

Key fobs are one of the most convenient features for modern-day car owners. They let drivers lock or unlock their car by pressing one button. Key fobs, however convenient they are not impervious to destruction. They will eventually require to be repaired or replaced. There are  car replacement key fob G28 Car Keys  that you can do to ensure that your fob works properly. It is recommended to clean the buttons frequently and replacing the battery when it's exhausted. It is also possible to store extra batteries in a secure place. Additionally, avoiding exposing the fob to magnetic fields or electromagnetic interference can help extend its life.



A dead battery for a key fob is among the most frequent and easily fixable problems that can affect the car key fob. The battery could be dead if the range of your key fob's ability unlock your car is becoming smaller or if the fob needs to be pressed more than once to activate the function. It's easy to replace the battery, since many key fobs come with an indentation that you can remove with a screwdriver, or coin. Simply remove the old battery and then insert a new one, and make sure that you match the type of battery with your model.

Faulty locks are another common issue that can result in an inoperative key fob. If your key fob isn't able to unlock the doors or start your car there could be a problem with the locks. This is particularly true for older vehicles with a manual transmission which can be a challenge to operate with a key fob.

The key fob could not function properly if it has components that are defective. The causes could range from physical damage to worn-out internal electronics. If you notice that the key fob has been damaged, it's recommended to seek out a professional to diagnose the problem and determine whether it is worth trying to fix or if it's easier to replace. In some instances, a dealer may be the best option as they are familiar with a specific make and model of car.