The emergency lights and the horn start going on when i open the door for about 5 minutes. What do i do?
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1998 Volvo S90 Question: Emergency lights and horn go on when i open door
Answer #1Bret Bodas from RepairPal Test Shop, November 21, 2010, 11:40Master
This is because the alarm is not disarming when you are unlocking the car. Next time after you unlock the car, see if the alarm LED light is still flashing, indicating that the alarm is still on. If it is, then there's an issue with the alarm system.
Try using the key to unlock the car, and the remote as well, see if the alarm is disabled using one of them.