How to Change Transmission Fluid on 2023 Tundra TRD Pro Hybrid

Got a 2023 Toyota Tundra TRD Pro Hybrid? Then you’ve got power, performance, and precision—but only if you take care of it. In this detailed step-by-step guide, ASE Certified Master Tech Keith from OrtoTech Garage shows you exactly how to perform a transmission fluid service on this complex 10-speed hybrid transmission system. You’ll learn everything: the correct fluid, how to fill it, how to bypass the transmission oil cooler thermostat, and critical mistakes to avoid that could cost you thousands. Toyota didn’t include a dipstick or easy access from above—so we go under the truck to get it done right. If you’ve seen our Toyota Camry transmission guide, this expands on those concepts with more advanced techniques. This is not just a fluid change—this is how to protect your investment the right way. Ideal for DIYers, Toyota fans, and anyone serious about hybrid truck maintenance.

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⌚Time Stamps:
00:00 - Intro: Why This Transmission Service Matters
01:10 - Tundra TRD Pro Hybrid Overview & Fluid Importance
02:22 - No Dipstick? Transmission Access Explained
03:35 - Identifying Drain, Fill, and Overflow Locations
05:05 - Bypassing the Transmission Thermostat
06:30 - Step 1: Remove the Fill Plug (14mm)
07:45 - Step 2: Drain Plug & Overflow Tube Removal
09:15 - Fluid Condition Check & Sampling
10:30 - Refilling with Toyota WS Fluid
12:10 - Monitoring Fluid Levels & Overflow Behavior
14:00 - Thermostat Bypass Procedure in Action
16:00 - Common Mistakes to Avoid During Fill
18:15 - Proper Reinstallation of Plugs and Seals
20:00 - Final Fluid Check & Temperature Readout
21:20 - Conclusion: Protecting Your Tundra Investment

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As an ASE Certified Master Auto Technician, I strive to provide accurate and reliable information. However, this video is intended for general educational purposes only and should not be considered specific professional advice. The OrtoTech Garage and its representatives are not liable for any damages, injuries, or losses resulting from the use or misuse of the content presented. Always consult your vehicle’s owner manual or a qualified professional for repairs or modifications. Viewers assume all responsibility for their own actions.