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October 8, 2026 Service bulletin

Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil...

Hyundai technical service bulletin 26-EM-016H TSB for 2002-2026 Hyundai Sonata, 2002-2026 Hyundai Elantra and 2002-2012, 2019-2027 Hyundai Santa Fe and others.

Bulletin number
26-EM-016H TSB
Component
Engine
Summary
Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.

Owners of these vehicles have filed 12,972 complaints in the engine category.

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