How to Change Transmission Fluid — 2018-2025 Honda Accord

Changing the transmission fluid in your 2018-2025 Honda Accord is a key maintenance task to ensure smooth shifting and prolong the life of your transmission, especially if you notice rough shifts or hit the 30,000-60,000-mile interval. This DIY repair can save you money, costing around $50-$80 for fluid and supplies compared to $150-$250 at a shop. With the right tools and our step-by-step guide, most DIYers can tackle this job confidently. DIY Cost: $50-$80 | Shop Cost: $150-$250

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.