Technical Service Bulletin 25-01-001H DBP — 2021 HYUNDAI SONATA
FUEL/PROPULSION SYSTEM
Bulletin Details
| TSB ID | 25-01-001H DBP |
| Manufacturer | |
| Vehicle | 2021 HYUNDAI SONATA |
| Component | FUEL/PROPULSION SYSTEM |
| Communication Date |
Bulletin Summary
Certain 2021-2023MY Sonata (DN8) and 2020-2022MY Sonata (DN8A) vehicles may have Diagnostic Trouble Code (DTC) P0451 (also known as DTC P14EE00) stored in the Electronic Control Unit (ECU). The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
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
24-EM-001H
ENGINE
23-EE-009H
ENGINE AND ENGINE COOLING
23-AT-009H
POWER TRAIN
23-01-002H
FORWARD COLLISION AVOIDANCE
22-01-018H
ENGINE AND ENGINE COOLING
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