Use a code reader.
Car alarm battery change.
How to reset your car alarm in the event of flat battery or your remote car key fail or after replacing new battery.
If you replace the battery the alarm system will be activated and you will not be able to start the car again until the alarm has been disabled.
Many modern car alarms are sophisticated components that tie into the vehicle s ecu main computer as well as the ignition system.
On newer vehicles the key fob or alarm remote may need to be reset with a code reader scanner.
We ll show you how to safely open up a key fob and swap out the batteries.
Car alarms rely on the electronic component of the vehicle and disconnecting the battery should both silence the siren and reset your alarm.
Looking for a new battery for your car alarm transmitter.
This video can be used f.
How to disable a car alarm to change the battery by alibaster smith.
Most procedures will vary from car to car but you can try removing and replacing the fob battery.
Open up the hood locate the battery and with a wrench remove the negative terminal.