Technical Service Bulletin 24-FL-002H — 2020 HYUNDAI SONATA
POWER TRAIN
Bulletin Details
| TSB ID | 24-FL-002H |
| Manufacturer | |
| Vehicle | 2020 HYUNDAI SONATA |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart after the ISG system has engaged and requires a manual restart due to the lack of intake manifold pressure recovery.
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 2020 HYUNDAI SONATA
25-EE-002H
ENGINE
24-01-020H DBP
FUEL/PROPULSION SYSTEM
24-FL-002H
ENGINE AND ENGINE COOLING
23-AT-003H-1
POWER TRAIN
22-01-018H
EQUIPMENT:ELECTRICAL
21-EM-010H
ENGINE AND ENGINE COOLING
21-01-009H
ELECTRICAL SYSTEM:SOFTWARE
21-01-009H
ENGINE AND ENGINE COOLING
20-BD-020H
VISIBILITY
20-BD-013H-1
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS