HYUNDAI

26-AT-003H TSB

Manufacturer communications

Publication date: 2026-05-19
Received by NHTSA: 2026-06-06
NHTSA record numbers: 11033698

Manufacturer summary

Original wording in English

Some Santa Fe (MX5A) and Santa Cruz (NXT) vehicles may exhibit a low idle or excessive vibration while in Drive or Reverse, or DTC P050600 (Idle Air Control System – RPM Lower than Expected) caused by the one-way clutch sprags being misaligned. This bulletin provides instructions to remove the automatic transmission and replace the torque converter.

NHTSA manufacturer communications ↗

Reported code forms

P0506

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

HyundaiP050600

Idle Air Control System – RPM Lower than Expected

NHTSA 11033698

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Make	Model	Model year
Hyundai	SANTA CRUZ	2026
Hyundai	SANTA FE	2026

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