How do you reset a car alarm after changing the battery?

Step 1: Turn the car on, then turn the dashboard lights on and off a few times.
Step 2: Disconnect and reconnect the battery.
Step 3: Use your
car owner’s manual
to locate your car’s alarm transmitter system and use the attached switch to turn off the alarm.

What to do:

Take your car to a mechanic

if the problem persists. Just make sure to find and turn off the alarm transmitter first, or just remove the battery and call a tow truck.