How to Fix key repair service near me G28 Car Keys That isn't Working
If your key fob won't work and you're not sure why, you can fix it by following just a few steps. First, ensure that it's not your backup remote.
If the backup remote is able to lock and unlock your car door, then there is likely an issue with the primary remote. The most common causes of key malfunctions for car remotes are circuitry or battery issues.
Battery
It is not uncommon for the battery in the key fob for cars to degrade. It is simple to replace a battery. However it is crucial to select the right type. You can refer to your owner's manual or call the manufacturer to determine the correct type. It's recommended to examine the battery compartment with care since dead batteries may leak caustic chemicals that can harm the remote. If changing the batteries doesn't solve the problem, it may be that there are other issues that require attention from a professional. For instance, if the buttons seem to be stuck or damaged It may be necessary to take the remote apart and rework its parts. You can also try reprogramming the vehicle to recognize the new key fob.
Buttons
Key fobs can become filthy and worn out due to repeated use. This is not uncommon however, it can cause buttons to stop working or require a long press to function. This can be frustrating particularly when you're away from your home and need to switch on your car. Even malfunctioning or worn-out buttons are often fixable with a little time and materials you already have at home.
First, make sure the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Examine for indications of rust or other signs the buttons have been damaged or worn. For instance, conductive paint may be missing. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that is worn-out or where conductive paint is missing. Avoid rubbing too hard, since this could cause damage to the conductive paint and block the button from firing when pressed.
Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back in place will allow the button to function again in the event that this is the situation. The same method can be used to restore function to any loose connections in the fob.
In the end, if any of the rubber buttons on the front of the key fob aren't working or require a long press to function it is likely that the graphite disks at the back of the button are wearing down and require replacement. It is usually done by rubbing a pen across the disks. This should bring the button to life.
If none of this is useful, or if the button doesn't respond to a hard push, then it may be that the circuit board has gone bad. It is possible to fix this by a quick clean, and re-soldering, but it is ideal to have a spare fob on hand in the event that this method doesn't work for you.
Circuitry
The circuit board in your remote control could be dirty, regardless of whether the buttons on the key fob function or not. A very thorough inspection is usually enough to fix this problem. Broken cases and water are the most common causes of dirty boards. A damaged case can allow water and other debris to enter the circuit board, causing it to short. Water can also damage pins and small connectors on the board called via's.
If you're skilled enough to open your key fob and aren't afraid of making a mess, we can remove the buttons from their sockets and then solder new ones. Also, it's worth checking the connections between battery terminals. If they're loose, the buttons might not function properly or become stuck in their down position. Soldering the terminals and buttons to their proper positions is usually enough to return a malfunctioning fob to working.

Non-Remote Transponder Chips
Sealed non-remote transponder chip are more durable than the remote fobs that have them however they are still susceptible to being cracked by a hole made in them or pushed over by a lawnmowers blade or door handle for a car. Failures of the fuse are typically the cause of non-remote chip failures.
If you're not confident opening the key fob, you can remove the circuitboard and use a multimeter to determine if the diode is working correctly. If you're not comfortable doing this, visit your local hardware store or Oreilly's and they'll usually have a RFID frequency tester that can let you know if the key fob is sending signals.
Programming
Key fobs take lots of abuse and aren't indestructible. They may lose their connection with the receiver inside your vehicle because of shocks or a low battery, which calls for reprogramming. A professional auto locksmith or dealer can reprogram your key fob to get it functioning again. In the rarer case that resetting and fixing your key fob doesn't work, it could be time to replace it all over again.