I am having problems with the alarm on my 1999 Toyota Rav 4 how can I resolve this problem apparently it's integrated in car

If the alarm went off there is a cause, you have some part that is defective, if it is a factory system then likely it is a defective door ajar switch (5 or 6 in all), the dealer needs to scan for which one it is as long as the problem is occurring while the dealer has the car, otherwise you will need to replace all of them and hope that is the problem. All this assumes this is a factory system not an aftermarket system installed after the vehicle was built. Please rate my assistance as HELPFUL. If the alarm went off there is a cause, you have some part that is defective, if it is a factory system then likely it is a defective door ajar switch (5 or 6 in all), the dealer needs to scan for which one it is as long as the problem is occurring while the dealer has the car, otherwise you will need to replace all of them and hope that is the problem. All this assumes this is a factory system not an aftermarket system installed after the vehicle was built. Please rate my assistance as HELPFUL.