When I lock the vehicle to go off to the shops or the gym for example , everything seems fine at first but when I return the hazard warning lights are flashing quickly but there is no alarm sound. As soon as I unlock the vehicle the lights stop flashing. I am now unwilling to lock the vehicle as it seems to happen every time. I have only noticed this in the warmer sunny weather so could it be triggered by heat/direct sunlight?. It is a 2004 vehicle and I bought it in Nov of last year

Anyone had a similar experience?

 

Humm, might be an alarm problem. I had a similar thing happen to me. It was a condensation problem in the printed circuit above the courtesy light. I was told, if the vehicle was doing low mileage, condensation builds up in the head lining above the interior light and drips down into the alarm circuit. That info came from Chrysler. Got a second hand unit from a breakers. Did the job. But my indicators on and the siren was sounding. Hope this is of help ??

Jon

 

possible low battery problem?

 

Sounds like your alarm sounder isn't working which is a very common problem I had the same with the alarm activating, it's caused by the interior sensors picking up rising heat from the heater vents and or general heat rising. To test place a bit of clear sticky tape over the interior sensors and then see if it happens again, my guess is it won't. Hope this helps.