2000 Isuzu Rodeo alarm goes off every morning at sunup

First method to disable the alarm by using the remote control. The car will automatically lock if it is not opened in 30 sec.
Once you unlock the vehicle by inserting the key into the driver door you then have to insert the key into the ignition lock and switch the ignition on within 15 seconds after unlocking the door in order to deactivate the anti-theft alarm system. The alarm will be triggered if you do not switch on the ignition within 15 seconds. For more reference check out this video

If you don,t have the remote for the (Alarm) Try end get one for it, Or Have the alarm taken out if it isn,t a factory installed (Alarm)

There is nothing you can do to fix this at home, you need the dealer to scan the systems module and see what is going on.

Here are the options for disarming a factory alarm while it's going off:

1. Close all doors, trunk and hood. Alarm will stop after preset time.

2. Hit the unlock or lock button on the remote. (One of the 2 works... I just don't remember which.)

3. With all doors, trunk and hood close, insert the key in the driver's door and unlock/lock the doors manually.

Also, is it a factory security system? Is it a honda key fob? or a remote start system perhaps?

Lock and unlock repeadadly untill alarm is off, check switch in lock

This sounds like a alarm problem, try closing and locking your door, then using your remote to unlock as if you have just got to your car in the morning... Im thinking along the lines that you car alarm is activating the ignition auto shut off....

replace the batteries in the remote,then lock as usual.otherwise do what i do, dont lock the car at all..

try to put the key in the ingnition and turn it to the on possition and walk away for about 15 min come back turn it to off and see iff it starts

it sounds to me like you have a short or something in your car is using power. You might want to try to pull the fuse for the alarm and leave it out over night, then try the car in the morning and see if it starts. If it does then the problem is in the alarm. My car did that a couple of times and my alarm was the trouble and to replace it. Hope that helps.

Hi,

I have a similar problem in my x type. Although if I press unlock button on the key first and then use the metalic key to unlock it dissables the alarm.

Also according to the manual if you unlock by the metalic key the car starts a beeping sound its I think 15-20 second timer within which you should put the key and start the ignition (don't need to start the engin) this will dissarm the alarm if not the alarm will go off in 15-20 second.

Hope this information is of any use, am trying to get hold of Jaguar dealers to fix this issue. If you come accross any solution please do let me know too