2020 Hyundai Kona
Mileage
84,469
Service Date
3/26/2026
Services Performed
- Customer Concern: Customer states there is a chatter, vibration, or judder sensation when taking off from a stop under load. Diagnostic Findings: Verified the customer concern. During takeoff from a stop at low speed, vehicle exhibits an abnormal vibration/judder. Performed system health check and found no stored fault codes. Inspected transmission fluid level and condition and found fluid clean and properly filled. Performed stall test and vehicle passed stall test. Vehicle maintenance history indicates engine oil and transmission fluid services have been maintained in line with Hyundai service intervals. Service Information Review: Reviewed Hyundai service information and found Technical Service Bulletin 22-AT-007H, which supersedes 21-AT 014H, applicable to this symptom pattern. Conclusion / Recommendation: Based on symptom verification, transmission fluid condition, absence of stored faults, and applicable Hyundai service information, recommend dealership-level evaluation for transmission control unit revised-logic update and dual clutch replacement per current Hyundai technical service bulletin procedures. Internal Use Summary: Vehicle presents with repeatable low-speed takeoff judder/chatter under load. No fault codes present. Fluid level and condition normal. Stall test passed, reducing likelihood of a gross internal slip condition identifiable by this test alone. Maintenance history appears current. Diagnosis aligns with known Hyundai bulletin direction for dual clutch shudder/judder condition requiring updated transmission control logic and clutch-related corrective action at dealer level.
Nico S. gave our service a 5 star review on 3/27/2026
