2011 Hyundai Sonata Technical Service Bulletins

233 technical service bulletins (TSBs) are on record for the 2011 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.

• 10044174Mar 1, 2012Seat belts. Hyundai: information being provided for replacement of rear center seat belt assembly in vehicle.
• 10043596Jan 1, 2012Engine cooling. Nvld (natural vacuum leakage detection-pressure sensor assembly) replacement. On the 2011 sonata hybrid.
• 10042534Nov 1, 2011Transmission and drivetrain. Hyundai: the replacement and/or installation of the a/c (air conditioner) output connector, dc input connector and the hpcu (hybrid powertrain control unit) inter-lock connectors is provided in the bulletin.
• 10042532Sep 1, 2011Engine cooling. Hyundai: bulletin providing a procedure for a revised part as a replacement for a radiator cooling fan resistor.
• 10041947Sep 1, 2011Electrical system. Hyundai: see document search button for owner letter. Software update information relating to six controllers: ecm, tcm, hcu, mcu, bms and ldc is being provided. *pe updated 12/6/11.
• 10041945Sep 1, 2011Electrical system. Hyundai: bulletin providing information on replacing the battery cable terminal.
• 10041634Aug 1, 2011Engine cooling. Hyundai: inspection and adjustment of exhaust waste gate actuator.
• 10041633Aug 1, 2011Tires. Hyundai: see document search button for owner letter. Procedure information regarding 18 in. Wheel vehicles for tracking diagnosis and repair. *pe updated 10/28/11.
• 10041632Aug 1, 2011Engine cooling, Electrical system. Hyundai: information is provided for the ecu update for hev active air flap (aaf).
• 10041631Aug 1, 2011Transmission and drivetrain. Hyundai: a procedure is being provided for updating automatic transaxle tcm.
• 10040956Jun 1, 2011Engine cooling. Hyundai: 2011 sonata. Inspection and replacement procedure for natural vacuum leakage deteciton. Ecm update information.
• 10040957May 1, 2011Brakes. Hyundai: all sonata hybrids. Brake bleeding procedure.
• 10040958Apr 1, 2011Transmission and drivetrain. Hyundai: operation of the transmission solenoid may lead to check engine light, transaxle held in 4th gear safe, and diagnostic trouble codes.
• 10038951Mar 1, 2011Equipment, Electrical system. Hyundai: some navigation systems may lock up during map mode and there is a process to reprogram the software. 2009 sonata.
• 10037959Feb 1, 2011Engine cooling. Hyundai: there is a software update to improve the oxygen sensor. 2011 sonata.
• 10037958Feb 1, 2011Equipment. Hyundai: there are problems with the radio. Xm radio might not work as well as the radio display. The preset buttons may stick.
• 10037954Feb 1, 2011Transmission and drivetrain. Hyundai: procedure to evaluate the hybrid electric powertrain. 2011 sonata.
• 10037911Jan 1, 2011Electrical system. Hyundai: procedure if a voltage battery is discharged at a fast rate due to an abnormally high rate from an empty fuel tank or malfunction of the system. 2011 sonata.
• 10037908Jan 1, 2011Brakes. Hyundai: check engine light on, transaxle held in third gear, and trouble codes stored. This is caused by incorrect input and output speed sensors.
• 10038211Dec 1, 2010Engine cooling. Hyundai: procedure to reset the electronic throttle control.
• 10033805Dec 1, 2010Transmission and drivetrain. Hyundai: automatic transmission solenoid dtc p0741, p0743, p0748, p0753, p0758, p0763, p0768, p0773 and p2709. Incorrect operation of the transmission solenoids may result in the following: check engine light illuminated; transaxle held in 4th gear fail safe. *pe updated 6/10/11.
• 10037423Nov 1, 2010Visibility (wipers, defrost, mirrors). Hyundai: some sunroof switches may intermittently stick when closing the sunroof. There is an inspection and repair procedure.
• 10037406Nov 1, 2010Equipment. Hyundai: the procedure to update the 2011 sonata navigation system.
• 10037361Nov 1, 2010Body and structure. Hyundai: when driven on uneven or rough roads there is a creek noise from the front passenger area and there is a repair procedure for it.
• 10037323Nov 1, 2010Visibility (wipers, defrost, mirrors), Interior lighting. Hyundai: the procedure for replacing the overhead console lamp on 2011 sonatas.
• 10037250Nov 1, 2010Transmission and drivetrain. Hyundai: on some 2011 sonatas there is an automatic transmission software update. *rm updated 5/18/11.
• 10037258Oct 1, 2010Engine cooling. Hyundai: the procedure for replacing the turbocharger oil feed pipe.
• 10037251Oct 1, 2010Visibility (wipers, defrost, mirrors), Interior lighting. Hyundai: there is a procedure to replace the 2011 sonata rear dome lamp lens.
• 10034227Apr 1, 2010Electrical system. Hyundai: ignition switch wiring harness routing; push button start. Provides the procedure for identifying and repairing wiring harness contact to the steering column brackets and a spring on a steering column lever.
• 10034204Apr 1, 2010Equipment. Hyundai: label requirements for vehicle loading to comply with fmvss 110. Effective 6/2/08, fmvss 110 (fmvss 110) sets a threshold for correcting load capacity information indicated on tire placards when vehicle weight has been increased before retail sale. All models included after 6/2/08.
• 10034234Mar 1, 2010Transmission and drivetrain. Hyundai: a 6 speed automatic transaxle with a harsh and/or delayed shift; gds analysis.
• 10033366Feb 25, 2010Electrical system. Hyundai: service campaign ta9; ecm software update on certain model vehicles. *pe updated 8/18/10.
• 10033604Feb 1, 2010Electrical system. Hyundai: ignition switch wiring harness routing (ta8). Provide the procedure for identifying and repairing wiring harness contact to the steering column brackets and a spring on a steering column lever.

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