Replaced battery on 05 Infinity QX56 now the remote starter (Audiovox) will short cycle the starter (trys to start in a short burst) but vehicle will not run, noticed the security light is on when it is attempting to start, otherwise vehicle will start with the key, security is on only when you try to use the remote starter, NOTE; seems to be as a result of battery replacement., any clues.

SOURCE: REMOTE STARTER NOT WORKING COMPLETELY

Here is page 2 of the owners manual, Hope it helps.

This will not start the vehicle if any one of the following situations exists;
The vehicle's hood lid is opened.
The gear shift selector is not in Park.
The brake pedal is depressed.
The safety control switch is in the Off position.

1. To start the vehicle, press and release the transmitter button two times within 2
seconds. The vehicle will start and remain running for the pre-programmed 5,10,15,20 minute run cycle. As a visual indication, the parking lights will flash or remain on depending on the setting by your installation center.

2. When you arrive at the vehicle, turn the ignition key to the ON position (not the spring loaded start position), then step on the brake pedal to disengage the remote starter. The
vehicle will continue to run, but now on it's own power.
NOTE: The engine will stop running before the pre-programmed run cycle has expired if you perform any one of the following functions;
-Press and the button on the keychain transmitter two times within 2 seconds.
-Depress the brake pedal.
-Open the vehicle's hood
-Place the unit in the safety control disabled mode.
PRLED SAFETY CONTROL SWITCH

The Push-Button LED control switch allows you to temporarily disable the remote starting function of the system. This recommended whenever the vehicle is being serviced. To place the system in the service mode:

1) With the system disarmed/unlocked, and the ignition switch off Press and Hold the PRLED on.
2) Turn the ignition switch on, off, on, off, on, off.
3) The LED begins to flash two short flashes followed by one long flashes and continues this pattern until returned to normal mode of operation. This puts the unit into the R/S Override mode indicating that the remote start is in the service mode and will not start from RF or any other input Posse or otherwise.
To Exit R/S Override Mode
1) With the system disarmed, Press and Hold the PRLED on.
2) Turn the ignition switch on, off, on, off, on, off.
3) The LED turns off indicating that the R/S unit is fully functional one again

SOURCE: prestige platinum by audiovox need to replace the remote for it

if you need a remote you can buy one from audiovox.com and also you can download the installation manual and user manual in which that will tell you how to program the new remote for the remote start.

SOURCE: My audiovox dealer installed remote starter starts

It dosent sound like there is a transponder bypass installed or installed correctlt, I dont know the year make and model of car but that sounds like what it would be

SOURCE: Remote starter does not work after the battery

Turn key on and press valet button 3 times then press butoon on remote.Turn key of and thats it

SOURCE: I bought a car with this starter (below)and no one

I'm not sure about trunk but to start the engine press twice green buttun and engine should start and to shutt it off press green button once.