There are 2 stored owner reports matching the engine leading-label group for the 2007 Lexus GX in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)I OWN THIS LEXUS 2007 GX470, AT 120,00 MILES HAS A COMPLETELY OVERHAULED AND NOW 143,000 MILES ALL YELLOW WARNING LIGHTS ILLUMINATED THAT INCLUDING "ENGINE" THE ENGINE STARTS MAKE NOISE AND KING OF DRAGGING SOMTHING, AFTER DIAGNOSTICS. "THE SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN BOTH ONE AND TWO" I CALLED DEALER AND TOTAL PARTS COST ME $1,200 NOT INCLUDE LABOR YET. THAT'S RIDICULOUS.
I AM THE OWNER OF A 2006 LEXUS GX470 (VIN [XXX]). A MONTH OR SO AGO, AT OR ABOUT 56,500 MILES, THE CHECK ENGINE LIGHT CAME ON ALONG WITH ABOUT THREE OTHER YELLOW WARNING LIGHTS. ALSO, THE ENGINE WENT INTO A MODE THAT BARELY ALLOWED ME TO DRIVE DOWN THE ROAD. ON OR ABOUT JANUARY 27 OF THIS YEAR, I LIMPED TO THE LEXUS DEALER FOR INSPECTION. AS THE ATTACHED REPORT INDICATES, MY VEHICLE WAS DIAGNOSED WITH A FAILURE OF THE SECONDARY AIR SYSTEM WITH A REPAIR ESTIMATE OF $2,114.60. (SEE PAGE 9 OF THE ATTACHED AUTOPOINT FITNESS INSPECTION & TREATMENT PLAN). AFTER RESEARCH, IT APPEARS THAT THIS PROBLEM IS VERY COMMON WITH THIS ENGINE TYPE. I WOULD ASSERT THAT MINE IS A DEFECTIVE VEHICLE. IT SEEMS THE SECONDARY AIR PUMP (PART OF THE EMISSIONS SYSTEM) IS DEFECTIVE AND DETERIORATES, CAUSING THE ENTIRE SYSTEM TO STOP WORKING. THIS THEN CAUSES THE ENGINE CONTROL SYSTEM TO REDUCE THE ENGINE TO A "LIMP MODE" THAT IS DANGEROUS AND DYSFUNCTIONAL. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 30, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.