NHTSA Complaint - Loss of power while accelerating - turtle mode - March 31, 2026

[Tooney]

https://www.nhtsa.gov/?nhtsaId=11728424

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[DerekS]

I wonder if this person was monitoring battery temp.

I turtled like that once in my first base Taycan.

It was a very hot day, 110F if I recall.
The car was sitting in direct sunlight for 2 hrs.
I had the AC preconditioning running.
Then I drove it like I stole it with full launches.

I didn't realize it was a thing at the time, but the issue was very obviously battery overheat.
Once it cooled it was fine.

As critical as I am of Porsche and their many failings with this car, I genuinely think the issue here is instrumentation and driver education rather than a fault on the car.

The car should simply put a legible warning up explaining the situation.

What I'd do:

Yellow: "Battery approaching overheat condition, moderate driving permitted"
Red: "Battery overheated, pull over to a safe place and allow cooldown"

 

[freinando]

It can be the inverters. Both of mine were replaced, and this is the same thing I experienced.

 

[69Mach390]

https://www.nhtsa.gov/?nhtsaId=11728424

“…while I was accelerating hard on the highway.”

Nothing like complaining to the government while admitting to breaking the law.

This same guy must call the cops when his drug dealer rips him off.

 

[fsolis]

I had the same issue, definitely not funny. I was traveling around 60 mph with traffic close behind when the car suddenly started slowing down. I pressed the accelerator and got no response, and the car came to a complete stop in the middle of the interstate. I have owned 4 Teslas before and never had an issue like that

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