Why does my remote car alarm LED light stays on?

Most likely the 12 volt led light burned out.. all bulbs LED too don't last.. Find the 2 wires usually Black and red and check for 12 volts with the alarm set and if you have 12 volts,. you need to go to radio shack and see if they still have 1. 2 volt led bulbs.. Good luck.

if its lit solid that usually means a problem with the system... so the alarm portion is most likely not active... or it might simply be in valet mode... without knowing the model of your car that's the best I can offer...

If you need further help, reach me via phone at https://www.6ya.com/expert/jonathan_4cd718ed254374ee

If the LED is on solid then the alarm is in valet. To exit valet, press "F" twice then press unlock on the remote. The LED should turn off.
OR,
enter the vehicle, turn the ignition on then off, press and release the valet/programming button on the antenna. LED should turn off

i have an autopage alarm system and i can't program my remote to it

The only reason that your alarm would not chirp when locking and unlocking the doors is that the system is in valet. A visual notification that the alarm is in valet mode is the LED light is on solid. If the LED is on solid and you wish to make the alarm active again, turn the ignition on then, press and hold the valet/programming switch for two seconds. The LED light will turn off.
If the LED light is not on solid then, the issue may be with siren itself.

Your alarm may have lost the tach signal, that was learned to it, when it was originally installed. That would cause the remote start to try starting the vehicle over and over again, until it finally stays running, because it can't read the engine speed to know it's running.
If you can find the valet push button switch in your vehicle, try this; Start your car with the key and immediately after it starts, press and hold that valet push button switch until the alarm led on the dash stays lit up or the park lights flash. Then, release the valet switch, shut the car off and try remote starting it. That is the procedure to re-learn the tach signal. Hope it works for you.

Your system is in valet. To take the system out of valet with remote: open any door, press lock, unlock, lock. Now check the LED; it should be off. Close the door and arm the system to check.
OR
Turn the key on then off. Within ten seconds press and release the valet switch. The LED should be off now. Close the door and arm the system. The alarm should chirp to confirm that it is armed.

Your alarm is is in valet. to take the alarm out of valet with the remote: open any door. Press lock, unlock, lock. The LED should be off now. Close the door and lock the doors with remote. The alarm should chirp to confirm that it is armed.
OR
Turn the key on then off. Within ten seconds press and release the valet switch. The LED should be off now. Close the door and lock the vehicle with the remote. The alarm should chirp to confirm that it is armed.

your remote starter is in valet mode, the door lock will still work but no remote start, try pressing the trunk button 3 times, if that doesn't work turn the ignition switch on and off 5 times

if you are finished with the install, then it's in valet mode. if you are still working on the alarm it's on because the alarm needs a ground.