One problem related to other fuel system fuel injection system has been reported for the 2006 Lexus GX470. The most recently reported issues are listed below.
Secondary air injection system pump stuck off bank1 code p2445. This issue is a common problem for Lexus GX-470. Lexus extended warranty for repairs. However, the number of complaints from people warrants a recall. This malfunction is manufacturer's fault. The cost to repair at the dealer is around $2,000.