While driving my brake light came back on and within minutes I had no brakes

2012 DODGE CARAVAN
18,890 MILES • AUTOMATIC
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SC1990
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Yesterday afternoon (5-25-19) I had a new tire put on the front driver side. My brake light came on about an hour later, fluid was a little low so I added some. While driving my brake light came back on and within minutes I had no brakes. Checked fluid and it was empty. Is it possible that the tire shop somehow caused this?
May 25, 2019 at 7:54 AM
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DANNY L
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Hello, I'm Danny.

Just a quick question first. Are you noticing any brake fluid leaks on/in/around/underneath the car since noticing the master cylinder emptying? This guide can help us fix it

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


Please run down this guide and report back.
May 25, 2019 at 1:26 PM
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SC1990
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No, but it was raining fiercely when it happened. I pumped them a few times trying to stop until I had to engine braked enough to coast to a stop in neutral.
May 25, 2019 at 2:16 PM
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DANNY L
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Hello again.

It sounds like a major leak in the system.. Since it was raining you couldn't tell from where.. Still raining where you are located? I'll be still happy to determine where the leak is coming from! Stay dry!
Danny-
May 26, 2019 at 6:49 AM