2020 Hyundai Sonata Technical Service Bulletins

103 technical service bulletins (TSBs) are on record for the 2020 Hyundai Sonata. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10170513Dec 20, 2019Brakes. This bulletin describes the procedure to inspect, and if necessary re-route the main harness adjacent to the brake booster of certain 2020MY Sonata (DN8) vehicles.
• 10170512Dec 17, 2019Equipment. This bulletin provides information and procedures for collecting OBD ?In Use Monitor Performance Ratio? (IUMPR) data on certain 2019-2020MY vehicles at California dealers. This reporting is mandated by CARB (California Air Resources Board). Data is no longer submitted to Hyundai by datasheet and dealer email. Data is sent electronically by GDS when the procedure of this bulletin is followed.
• 10169372Nov 7, 2019Equipment. This bulletin provides information on the Launch Quality Monitoring Process (LQMP) for the 2020MY Hyundai Sonata. After a new vehicle launch, Hyundai uses the LQMP to monitor all customer and dealer activities at a minimum of 100 days. The Sonata LQMP helps improve model vehicle quality, and allows Hyundai to proactively respond to the Voice of the Customer (VOC).

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