Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2021 Hyundai Veloster 2.0, Automatic TransFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Inspection

Using the GDS, check the input/output speed sensor waveforms.
- Turn OFF the ignition switch.
- Connect the GDS to the Data Link Connector (DLC) on the lower crash pad.
- Ignition "ON" & Engine "ON".
- Check the input/output speed sensor waveforms at high speed and low speed.
Courtesy of HYUNDAI MOTOR AMERICA

Courtesy of HYUNDAI MOTOR AMERICA

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.