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December 8, 2015 Service bulletin

TT: Some IS250 and GS300 vehicles may exhibit one or more of the following conditions: ? MIL ?ON? DTC...

Lexus technical service bulletin L-TT-0192-15 for 2006-2010 Lexus IS 250, 2006 Lexus GS300 and 2010 Lexus IS 250C.

Bulletin number
L-TT-0192-15
Component
Engine and engine cooling
Summary
TT: Some IS250 and GS300 vehicles may exhibit one or more of the following conditions: ? MIL ?ON? DTC P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306. ? Intermittently runs rough after coming to a stop with the engine at operating temperature. ? Intermittently runs rough with engine misfires present after a cold soak startup. NOTE: The recommendations in this document apply to an intermittent misfire concern. If a vehicle exhibits a steady misfire, the root cause is not related to the referenced service bulletins and the repair manual should be referenced for diagnosis.

Owners of these vehicles have filed 87 complaints in the engine category.

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