Problem Reports
Lexus RX400h
Report: Check Engine Light With Code P0AA6
Lexus RX400h Problem
Model Years Affected: 2006, 2007, 2008
Average Mileage: 69,000 mi (54,000 mi - 80,000 mi)
The Check Engine Light may illuminate with code P0AA6 stored for a hybrid battery isolation fault. Our technicians tell us this may be caused by water intrusion into the high voltage battery case. The water may be a result of cracking body seam dealer above the rear door strut mount. Any water leaks should be repaired and the high voltage battery system inspected for water damage and repaired and dried as necessary.
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Visitor, 2006 Lexus RX400h, 54,000 mi
My 2008 Lexus RX400H would not start today. The warning "Check Hybrid System" displayed on the dashboard after trying to start. I had the car towed to the dealer and just received the bad news! I was told that repairs will be very expensive as a result of cracks in the body letting water seap into the hybrid battery system. The dealer advised that I call my insurance company to file a claim.
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bigjosh2, 2006 Lexus RX400h, 67,000 miRookie
Dealer said hybrid system would notbe covered under the 70K hybrid warantee becuase there was "water in the body" maybe from a leak somewhere in the frame. Estimated $650 just to start "tearing the car down" to look for the leak, then $5K+ to fix hybrid system. Looks like hybrid warantee is wortless if dealer can just claim that there was a water leak somewhere. This sucks.
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