One problem related to trunk wiring has been reported for the 2005 Volvo XC90. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Volvo XC90 based on all problems reported for the 2005 XC90.
I drove in severe down pour yesterday and experienced an yellow error message followed by an electrical short and anti skid message. I reduced my speed to 50 mph on the interstate and proceeded home. After stopping the lights would not turn off and I immediately took it in for service where the technician advised me that this was a problem with water getting into the engine compartment wiring harness and causing the central electronic module to short ciruit and rust. This repair alone costs over $5000 due their defective design and improper sealing of important electrical components. I avoided any possible accidents by driving slowly but do not feel safe were I to travel in inclement weather in the future. I do believe that the electrical system would short circuit leaving me without essential power and possibly hurt or stranded. I can see from your database that an investigation was completed on 11/22/2010 under id pe10025 citing no real safety issues. I disagree and would encourage you to revisit this issue immediately. Volvo has conceded to replace the cem ($753. 52) unit but not the engine compartment ($3034. 71) that houses it, therefore owners like myself will continue to experience the same problem and real danger from it.