2002 Lexus ES 300FACTORY OEM SERVICE PROCEDURE

Section 133 (Transmission Control System): Coolant: Replacement

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE ENGINE UNDER COVER LH 
  2. REMOVE ENGINE UNDER COVER RH 
  3. DRAIN COOLANT 
    1. Remove the transaxle-side reserve tank cap.
      NOTE: Do not remove the reserve tank cap when the engine is hot.
    2. Remove the plug shown in the illustration and drain the coolant.
    3. Install the plug using a new gasket.
      1. Torque: 39 N.m (400 kgf.cm, 29 ft.lbf) 
    Fig 1: Removing Plug
    G02920906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. ADD COOLANT 
    1. Loosen the bleeder plug shown in the illustration and connect a hose.
      NOTE: Insert one end of the hose into the bleeder tank.
    2. Add coolant from the bleeder tank.
      NOTE: Add genuine Toyota Super LLC coolant.
Chapter Navigation
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.