2006 Lexus GX470 Engine Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- 125,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2006 Lexus GX470, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 125,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #11184806, filed 2019-03, 125,000 miles“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.”
NHTSA complaint #11166286, filed 2019-01, 125,000 milesRelated service bulletins
- 10179601Aug 5, 2020TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a…
Engine: other model years
Other parts of the 2006 Lexus GX470
8 complaintsBody and structure
8 complaintsOther or unknown
4 complaintsSeat belts
3 complaintsBrakes
2 complaintsTransmission and drivetrain
2 complaintsElectrical system
1 complaintsEngine cooling
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSeats
1 complaints
← All problems reported for the 2006 Lexus GX470
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology