No response when i try to lock/unlock the car alarm

try changing battery in the remote

Check the battery of the remote,change it and try it again

hold the lock and unlock for 30 60 seconds on remote hold the buttons down and should reset the alarm if not may need new battery in remote

first check the battery in the remote. if it is good it could possibly be the body control module

you need to disarm the alarm. unplugging batt. or dead battery being jumped sets of the alarm not all alarms make noise
use remote to lockand then unlock doors need to be closed
or lock then unlock door with key if it dont reset then try passenger door

check the alarm and central locking computer on your right of the steering wheel , unlock it and reset it after 1 hour you can try again and it should be reset and the alarm will sound if its active.

yes the remotes do have batteries. how ever that might be your problem or the remotes lost its code for programing. step when turning alarm off---- if its a factory alarm put the key in the drivers door when the door is closed and lock then unlock it thats the manuel shut down for factory. step 2------- aftermarket alarm. look for a valet switch most likely it would be installed by the driver kick panel or by the under dash fuse box. when u find it put the key into the ignition. turn it to the run position. within 3 seconds press and hold the valet switch for 3 to 5 seconds you should here a confirmation chirp and the led light will stay on solid and wont blink give it a world let me know what happens

need to program a new remote to keyless entry system it is crimestoppper cs835 rke

Perhaps the mechanism is worn out that locks and unlocks your doors. Remove the door panel if you feel comfortable with the idea or find someone mechanically inclined to do it for you and try using your remote to see if there is any movement within the powered mechanism. I dont know the history of your cars and if someone else has tried to repair that issue. If the remote itself is the problem, I imagine theres a sight online you could probably find a universal remote to replace your faulty one.

you need the remote control of the alarm to turn the alarm off.

you may need to change the battery of the remote in case it would no longer control the alarm or if you have a valet switch to turn off the alarm, then use it.

the immobilizer is working that is why you can not start the car.

tnx 4 using fixya,

drcool