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For the 2012 Hyundai Sonata, make sure to use automatic transmission fluid that meets the DEXRON-VI standard. Opt for a trusted brand of ATF to avoid expensive transmission damage. It's crucial to change the transmission fluid regularly, ideally every 25,000 to 40,000 miles. Simply changing the fluid may not be sufficient; it's prudent to also check fluid levels in between changes, approximately every 10,000 miles. Neglecting this can result in transmission overheating, a major cause of transmission failure. To ensure your Sonata's longevity, maintaining this upkeep is essential.
The transmission of the 2012 Hyundai Sonata relies on Dexron VI ATF fully synthetic fluid to function smoothly and securely.