Technical Service Bulletin 22-01-018H — 2021 HYUNDAI SONATA
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 22-01-018H |
| Manufacturer | |
| Vehicle | 2021 HYUNDAI SONATA |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Certain 2020-22MY Sonata (DN8a) and 2021-22MY Santa Fe (TMa) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): ⢠P2074: Mass Airflow Sensor Plausibility ⢠P2074F0: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Lower Load ⢠P2074F1: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Medium or High Load Secondary DTC(s) below may also be stored: ⢠C136081: ESP Irreversible Error ⢠C161308: CAN Signal Error EMS ⢠C161386: CAN Signal Error EMS ⢠C169381: Blind-Spot Collision Warning â CAN signal failure - ESC ⢠C174181: ESC Not Available VSM (Check ESC) ⢠C183586: CAN Message Failure ESC/IEB Vehicles diagnosed with DTC(s) may also experience reduced engine performance and limited power reduction mode. The ECM software revises the logic to accurately detect the amount of air the engine is receiving.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 HYUNDAI SONATA
25-01-001H DBP
FUEL/PROPULSION SYSTEM
24-EM-001H
ENGINE
23-EE-009H
ENGINE AND ENGINE COOLING
23-AT-009H
POWER TRAIN
23-01-002H
FORWARD COLLISION AVOIDANCE
21-EM-010H-1
ENGINE AND ENGINE COOLING
21-EM-011H
ENGINE AND ENGINE COOLING
21-AT-009H
POWER TRAIN
21-01-051H
ENGINE AND ENGINE COOLING
21-BE-002H
ELECTRICAL SYSTEM