How to Transmission Fluid Change — 2019-2025 Chevrolet Silverado 1500

Changing the transmission fluid in your 2019-2025 Chevrolet Silverado 1500 is a key maintenance task to ensure smooth shifting and extend the life of your transmission, especially if you’re experiencing rough shifts or hitting the 45,000-60,000-mile interval. This DIY repair can save you big, costing around $50-$80 in parts compared to $150-$250 at a shop. With the right tools and this 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.