How to Replace the Serpentine Belt — 2021-2025 Hyundai Elantra

A worn serpentine belt on your 2021-2025 Hyundai Elantra can cause squealing noises, loss of power steering, or even engine overheating due to accessory failure, and it’s recommended to replace it every 60,000-100,000 miles. This DIY repair costs between $25-$50 for parts, compared to $100-$200 at a shop, and with the right tools and this guide, most DIYers can tackle it confidently. DIY Cost: $25-$50 | Shop Cost: $100-$200

You’re done. Clear any stored codes with your scanner and complete a normal drive cycle so the vehicle’s readiness monitors reset.

If the code returns, the root cause likely wasn’t the part you replaced — go back through the diagnostic steps before swapping anything else.