Brake pedal went to floor

Welcome to 2CarPros.

My first suspect is the master cylinder is bad. Take a look at this link:

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

What I suspect is the plunger in the master cylinder is bad and allowing fluid to bypass. You feel a bit of brakes at first and then the fluid bypasses and allows the brake pedal to drop to the floor. Now... I am basing this on no fluid leak.

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Here is a link that shows in general how the master cylinder is replaced:

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

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Here are the direction specific to replacement on your vehicle:

BRAKE MASTER CYLINDER

Brake Master Cylinder

Removal
NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.
NOTE: Removal steps in this procedure may contain installation details.

1. WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information. See: Vehicle > Initial Inspection and Diagnostic Overview Failure to follow this instruction may result in serious personal injury.
Refer to: Health and Safety Precautions See: Vehicle > Technician Safety Information > Health and Safety Precautions (General Information). See: Vehicle > Initial Inspection and Diagnostic Overview

2. NOTICE: Before removing the master cylinder, relieve the vacuum in the brake booster or the master cylinder O-ring seal may be drawn into the brake booster, causing brake booster failure and increased brake pedal effort.

Picture 1

3. Torque : 18 lb.ft (25 Nm)

Picture 2

4. Torque : 18 lb.ft (25 Nm)

Picture 3

5. NOTE: Make sure that the master cylinder-to-booster seal is removed with the master cylinder.

Picture 4

Installation

1. To install, reverse the removal procedure.

2.
- If a new brake master cylinder has been installed, bleed the master cylinder.
Refer to: Component Bleeding See: Brake Bleeding > Procedures > Component Bleeding (Brakes and Traction Control).

- If the brake master cylinder was removed to access other components, bleed the brake system.
Refer to: Brake System Pressure Bleeding See: Brake Bleeding > Procedures > Brake System Pressure Bleeding (Brakes and Traction Control).

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Let me know if this helps or if you have other questions.

Take care,
Joe

Welcome back:

That was my first consideration, the mileage. However, the symptoms fit. I can't think of anything other that would cause what you described unless there is a leak.

Let me know if I can help.

Take care,
Joe

Welcome back:

I understand. It sounds like you have the same type of luck I have. But remember, there are good and bad ones from all manufacturers. The car you have is a good one, but you may have just been the luck person that got the bad one in the batch. Again, the same luck I would have. LOL

Take care and let me know if I can help.

Joe