This procedure flushes the power steering system on a 2014-2019 Toyota Corolla with electric power steering (EPS), removing old fluid and replacing it with fresh Toyota ATF Dexron III.

Warnings

Tools required

Fluids

• Toyota ATF Dexron III — 1 qt

Preparation

1. Verify vehicle actually has hydraulic power steering by locating the power steering fluid reservoir under the hood
2. Park vehicle on level ground and set parking brake
3. Allow engine to cool completely if recently driven
4. Gather all necessary tools and fluids before beginning work

Procedure

1. 1

   Verify power steering system type
   Open the hood and check for a power steering fluid reservoir, typically located on the driver's side of the engine bay. The reservoir will be a small translucent container with MIN/MAX markings and a cap labeled for power steering fluid. If no reservoir is present, your vehicle has Electric Power Steering (EPS) and this procedure does not apply.
2. 2

   Raise and support vehicle
   Raise the front of the vehicle using a jack and support securely on jack stands. This allows the front wheels to turn freely during the fluid exchange process.
   Torque spec

   Wheel Lug Nuts129 Nm (95 lb-ft)
3. 3

   Remove old fluid from reservoir
   Remove the power steering reservoir cap. Use a turkey baster or fluid transfer pump to extract as much old fluid as possible from the reservoir. Transfer the old fluid to a drain pan for proper disposal. Continue until the reservoir is as empty as possible without disassembling components.
4. 4

   Refill reservoir with fresh fluid
   Pour fresh Toyota ATF Dexron III into the reservoir until it reaches the MAX line. Replace the reservoir cap temporarily.
5. 5

   Cycle steering to circulate fluid
   With the engine OFF, turn the steering wheel slowly from lock to lock (full left to full right) approximately 10-15 times. This circulates the new fluid through the system and pushes old fluid back to the reservoir. Check the fluid level frequently and top off as needed to keep it between MIN and MAX lines.
6. 6

   Extract and replace fluid again
   Remove the reservoir cap and extract the now-contaminated fluid using the turkey baster or pump. The fluid will be darker as old fluid has mixed with new. Refill with fresh Toyota ATF Dexron III to the MAX line. Repeat this extract-and-refill process 2-3 more times until the fluid coming back to the reservoir remains clean and pink/red in color.
7. 7

   Perform final circulation with engine running
   Start the engine and let it idle. Turn the steering wheel slowly from lock to lock 3-4 times while checking for leaks around hoses and connections. The fluid level will drop slightly as the system pressurizes. Turn off the engine and check the fluid level, topping off to the MAX line if necessary.
8. 8

   Check for air bubbles and leaks
   Inspect the fluid in the reservoir for air bubbles or foam, which indicates air in the system. If bubbles are present, repeat step 7 until fluid is clear without aeration. Inspect all visible power steering hoses, connections, and the rack for any signs of fluid leakage.
9. 9

   Lower vehicle and perform final check
   Lower the vehicle from jack stands to the ground. Torque wheel lug nuts to specification in a star pattern. Start the engine and turn the steering wheel through its full range of motion while stationary and during a short test drive. Verify smooth operation without noise, binding, or leaks.
   Torque spec

   Wheel Lug Nuts129 Nm (95 lb-ft)

Reassembly

1. Ensure reservoir cap is securely tightened after final fluid level check
2. Dispose of used power steering fluid at an appropriate recycling facility; do not pour down drains

Verification

• Fluid level is at MAX line on reservoir with engine off and at operating temperature
• Fluid color is clean pink/red with no contamination or air bubbles
• Steering operates smoothly without noise, whining, or excessive effort
• No fluid leaks visible at reservoir, hoses, connections, or steering rack
• Test drive confirms normal steering feel and response

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