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Andy, Volvo Expert Technician
Category: Volvo
Satisfied Customers: 3821
Experience:  One of only a handful of ACTUAL Volvo dealership technicians on JA, ASE Master Certified with L1
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I have 08 XC90 with Power System Service Urgent message and

Customer Question

Hi andy, I have 08 XC90 with Power System Service Urgent message and red triangle lit up. I checked codes on dash and this is what came up for DTC Set:
Submitted: 1 year ago.
Category: Volvo
Customer: replied 1 year ago.
I am still waiting for answer. thanks, Russ
Expert:  Andy replied 1 year ago.

Hi Russ,

That warning message means the charging system is not operating. The alternator is a common failure on the V8. It will likely need to be replaced. Low system voltage can cause all sorts of other fault codes to be stored, so the codes would need to be cleared after the problem is repaired.