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Peterkmiles
Peterkmiles, UK Car Mechanic
Category: Car
Satisfied Customers: 41
Experience:  13 years experience at the highest level of automotive technology
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Dears Sirs. I have a volvo XC 90 . Every 90 minutes after the

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Dears Sirs. I have a volvo XC 90 . Every 90 minutes after the car is parked and alarmed the alarm activates. Have changed the battery to no avail. Can you suggest what could be the problem
Hi,

It's quite common on these cars for the bonnet switch to come out of adjustment, it's located at the rear passenger side of the engine compartment, raise it 1 or 2 mm and this should cure your fault.

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Peterkmiles, UK Car Mechanic
Category: Car
Satisfied Customers: 41
Experience: 13 years experience at the highest level of automotive technology
Peterkmiles and other Car Specialists are ready to help you
Hello and welcome to Justanswer.com my name is Enes I'm a Certified Volvo Car Expert Mechanic.I'm going to try to help you find the help you need .you problem for most false alarm triggering is from siren control module that module has back up battery and with years age thr battery is going bad and triggering false alarm replacing the siren module would be your next step
Do you have more questions for me ?did you get my reply answer not sure if you got it