Understand the Hybrid System Warning — stop and do not drive message only within its documented Hyundai source context; check safety and exact vehicle applicability.
This text or status belongs to a specific manufacturer-document context. It is not a universal warning, a confirmed failure on your vehicle or permission to drive. Current document scope and on-screen action must be checked for the exact vehicle.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the Hyundai original: Sonata Hybrid safety plug / power relay assembly diagnosis Source date: 2023-06; research checked: 2026-11-01.
What this message indicates in the source
An urgent stop-driving message can accompany the Sonata Hybrid relay/safety-plug complaint.
Record type: paraphrased manufacturer message. The wording and response can differ with year, equipment and current software or manual edition.
First response and safety boundary
Follow the stop instruction and arrange qualified recovery. Do not access HV components.
If braking, steering, propulsion, temperature, smoke, fuel or high-voltage conditions are unsafe, stop safely and arrange qualified help. Do not use a generic message match as a roadworthiness test.
Where the document applies
Only the source case and its applicability conditions; not a universal warning definition.
The linked Hyundai communication records one conditional context. Verify the exact model, year, engine, options, build date, companion codes and current document revision before applying it. A message alone does not identify a part to purchase.
What to save for a shop
- Photograph or copy the exact wording after the vehicle is safely parked.
- Record the model year, powertrain, accompanying warnings and full code scan without clearing it first.
- Ask which source condition and measured test distinguish the possible causes.
Sources and scope
- Hyundai — Sonata Hybrid safety plug / power relay assembly diagnosis (23-HC-001H) Document: 2023-06 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.