Hi, I' m Chad. Welcome to JustAnswer. I' m reviewing your question now, and I will be post back with your reply ASAP
Do you have one or 2 keys for it ?
Is the security light flashing or steady on ?
if it is , try the below procedure
Try this below procedure an
Master Reset Procedure
1-Disconnect battery ( Both Cables ,The Negative & The Positive Cable )
2-Touch Cables together and hold 20 secs and let go
3-Hold Brake pedal down 10 secs
4-Wait 10 minutes and then Reconnect Battery
5-Close all the doors ,hood & trunk .
6-lock the car with key from driver door ( IF your car is Equipped with a bladeless key then just locked with the keyFob
7- Unlock car & Start your vehicle
hopefully this will reset the alarm module for now , if not, we need to have a diagnostic scan to retrieve fault codes from antitheft module and see which component is bad , is it the key, the receiver,the antitheft module etc ...
Please let me know
Thank You ***** ( aka -Customer)
ASE Certified Tech