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*****This has been previously posted but new owners will not likely find buried in a long thread.
2010-2013 GX 460 owners:
Special Service Campaign for Air Injection Pumps and Air Switching Valves.
Status: Remedy Available
Description: There is a possibility that moisture in the air may cause a filter in the vehicle emissions system to degrade. This degradation could cause damage to other parts of the vehicle emission system and illuminate the check engine light.
REMEDY: On Customer Demand any authorized Lexus dealer will replace the filter in the air injection pump with one of an improved design and replace the air switching valves in the vehicle emissions system FREE OF CHARGE. The dealer will inspect the air injection pump for damage and may replace the air injection pump as needed FREE OF CHARGE.
Year and mileage limits do not apply to this special service campaign.
Background info:
Previous campaigns started at 10 years (warranty inception date) or 150K miles after a failure and then moved to 10 years/unlimited mileage. The campaign currently has no year or mileage limits and can be requested on demand.