Service bulletins for the 2016 Hyundai Sonata
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
288 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 20-EE-003H | 2020-05-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information on identifying dealer stock vehicles with either: • A Battery SOC alert - low Battery State of Charge (SOC) at or below 50%. • A 30 Day alert - vehicle has not started and reported an SOC in 30 days. |
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| 20-AT-016H | 2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions: |
| 20-AT-014H | 2020-05-07. Service bulletin. POWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness. |
| 20-BD-010H | 2020-05-06. Service bulletin. LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK; LATCHES/LOCKS/LINKAGES; EQUIPMENT. The trunk latch base can be ordered separately from the trunk latch assembly. This bulletin describes the procedure to replace the trunk latch base. |
| 20-HA-001H | 2020-04-07. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR. This bulletin provides additional service diagnostic information and repair procedures related to electric A/C compressors equipped in hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles. |
| 20-AT-011H | 2020-04-07. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness. |
| 20-BD-007H | 2020-04-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin describes the general guidelines to disinfect and protect vehicle interior surfaces using certain safe chemical products. |
| Campaign T3G DBP | 2020-03-07. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedures on TSB #20-01-004H (supersedes TSB #19-01-006H-4) rotate the crankshaft, perform the bearing inspection (if crankshaft does rotate) and/or replace the engine based on the crankshaft/bearing inspection results. |
| 20-AT-008H | 2020-03-07. Service bulletin. POWER TRAIN; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness. |
| 20-01-004H - The | 2020-03-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. |
| 20-01-006H | 2020-03-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. Hyundai is conducting a product improvement campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously, a chime will sound on certain vehicles, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800-2000 RPM. |
| Campaign 953 Dea | 2020-03-07. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure. Watch this video to learn more. The KSDS software continuously monitors engine vibrations for unusual patterns that develop as an engine connecting rod bearing wears abnormally that could later cause engine seizure. If vibrations caused by bearing wear start to occur, the malfunction indicator lamp will blink continuously, an audible chime will sound and the vehicle will be placed in a temporary engine protection mode with reduced power and acceleration. At that time, Diagnostic Trouble Code (DTC) P1326 will be recorded in the ECM. In addition, Hyundai will extend the warranty to 10 years and 120,000 miles (up from 100,000 miles) for original and subsequent owners of the covered vehicles for engine repairs needed because of excessive connecting rod bearing damage. |
| 20-BR-001H | 2020-03-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. This bulletin describes the procedure to properly bleed the brakes on Sonata HEV/PHEV (LF) and Ioniq EV/HEV/PHEV (AE) vehicles. This procedure applies when any air is introduced into the Active Hydraulic Boost (AHB) system, which consists of the pressure supply unit (PSU), and the integrated brake actuation unit (IBAU). Improper bleeding of the brake system can result in the presence of air, which may reduce braking effectiveness. |
| 20-SS-001H | 2020-03-06. Service bulletin. SUSPENSION. This bulletin describes the requirements for all wheel alignment and/or vehicle tracking claims and best practices when diagnosing and conducting alignment-related repairs for all models and model years. |
| 20-AT-001H | 2020-02-03. Service bulletin. POWER TRAIN. This TSB provides a procedure to diagnose and repair a transaxle for the following Incorrect Ratio DTC (transaxle clutch slipping more than 200 rpm in gear). |
| 20-ST-001H | 2020-02-03. Service bulletin. STEERING. This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components. |
| 20-01-003H | 2020-02-03. Service bulletin. ELECTRICAL SYSTEM. 2016 - 2017 model year Sonata LF HEV vehicles contain a Power Relay Assembly. The PRA is equipped with a main relay and High Voltage Cable, which in some instances may have a loose connection. If the vehicle continues to operate in this condition, a loose connection could cause a no start condition or a Check Engine and Hybrid Warning Light On with either or both of these DTCs stored: DTC P1B77 High Voltage Battery Precharging Fault DTC P1990 Oil Pump Unit Input High Voltage Wiring Line Open This bulletin describes the procedure to inspect the PRA, High Voltage Cable, and main relays and replace them if necessary. |
| Campaign T4M Dea | 2020-02-03. Service bulletin. ELECTRICAL SYSTEM. Hyundai is conducting a Service Campaign to inspect the Power Relay Assembly, High Voltage Cable, and main relays and replace them if necessary. The affected vehicles include: Certain 2016-2017MY Sonata Hybrid (LF HEV) vehicles Hyundai is initiating this action to ensure the quality of its vehicles and the continued satisfaction of Hyundai customers. |
| 20-BE-001H | 2020-02-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides guidelines to inspect the USB, head unit, and multi-box for common connection conditions. 2. This bulletin presents guidelines to inspect for common Android Auto and Apple CarPlay connection conditions. 3. This bulletin provides physical differences between the USB 2.0 port and USB 3.0 port. |
| 19-AT-021H-1 | 2020-01-21. Service bulletin. POWER TRAIN; EQUIPMENT. If you are servicing a vehicle with a transmission slipping concern, follow the Service Procedure shown below and perform a stall test. This TSB provides a procedure to test each clutch in the transmission. If the vehicle fails the stall test, replace the transmission. ? PASS: Stall speed is between 1700~2900 rpm (See shop manual for stall speed). ? FAIL: Engine revs to redline limit (6,000~6,500 rpm). If so, replace the transmission. |
| Smart Trunk Deal | 2020-01-21. Service bulletin. STRUCTURE:BODY:TRUNK LID. A nationwide settlement (?Settlement?) has been reached in a class action lawsuit against Hyundai Motor America (?HMA?). The lawsuit concerns model year 2015 to 2017 U.S. specification Hyundai Sonata vehicles equipped with the Smart Trunk feature purchased or leased in the fifty United States or the District of Columbia (?Class Vehicles?). The lawsuit alleges that torsion bars on the Smart Trunk in the Class Vehicles are defective because they do not open a sufficient amount. . Defendant has denied these allegations. |
| 19-BD-009H-1 | 2020-01-21. Service bulletin. STRUCTURE:BODY:TRUNK LID. On certain Sonata (LF) vehicles equipped with smart trunk, the trunk lid may not open to the desired height when using the smart trunk feature. Follow the procedure in the bulletin to inspect the trunk lid opening height and replace the torsion bars if required. The warranty coverage for the trunk lid torsion bars has been extended to 78 months or 78,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners. |
| 19-AT-024H | 2019-12-16. Service bulletin. ELECTRICAL SYSTEM. If you are servicing a vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. ? Diagnostic trouble codes: ?P0705 - Range switch sensor circuit ?P0706 - Range switch range/performance ?P0707 - Range switch - open circuit ?P0708 - Range switch - short circuit or multiple inputs ? Symptoms: ?Malfunction Indicator Light (MIL) illuminated ?4th gear fail-safe ?No gear indication in cluster ?Intermittent no engine crank/no start in ?P? or ?N? with or without MIL or DTC. |
| 19-BD-009H | 2019-12-16. Service bulletin. LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK. On certain Sonata (LF) vehicles equipped with smart trunk, the trunk lid may not open to the desired height when using the smart trunk feature. Follow the procedure in the bulletin to inspect the trunk lid opening height and replace the torsion bars if required. |
| 19-BE-011H-1 | 2019-12-16. Service bulletin. LANE DEPARTURE; BACK OVER PREVENTION. The Blind Spot Detection (BSD) or Blind-Spot Collision Warning (BCW) is a system that measures the speed of and distance from the following vehicles by using two magnetic wave radar sensors attached in the rear bumper. The BSD/BCW detects vehicles within the blind spot zone and gives off an alarm (visual and audible). The two magnetic radar sensors provide these functions for BSD/BCW: ? Senses other vehicles in the BSD/BCW zone and turns on the BSD/BCW warning lamp for the driver. The warning lamp starts blinking, along with an audible sound, when the driver turns on the turn signal lamp to enter the lane where another vehicle is driving. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.