I have an 2006 Lexus GX470 and these lights came on: ABS, vsc trac, vsc off, skid, and check engine. The vehicle started making a humming noise at start up and now drives in stalled mode. Had codes check and it turns out I have the dreaded secondary air injection system (emissions) defect P0412, P0418, P1440/P1443, P1441/P1444, P2440, P2445, P1442/P1145, which is a recurring problem. Replacement is a nightmare for self repair or a $2000+ repair.

- Aurora, IL, USA

The contact owns a 2006 Lexus GX470. While driving approximately 35 mph and attempting to merge onto the highway, the vehicle did not accelerate past 50 mph. In addition, the check engine, vehicle stability control, and traction control warning indicators illuminated. The contact continued driving and stated that the failure occurred for approximately three weeks. The vehicle was taken to Lexus of greenville (2660 laurens rd, greenville, SC 29607) where it was diagnosed that the secondary air pump and valve switch failed and needed replacement. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 168,000.

- Greenville, SC, USA

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.

- Los Angeles, CA, USA