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Warn and Brake Assist warning light illuminates on car startup and stays illuminated

First Name
Stephen
Joined
Jan 6, 2025
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Location
Kirkland, WA
Vehicles
2024 Porsche Macan 4 EV
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Hi Everyone,

I'm seeing an issue with the "Warn and Brake assist warning light". During normal driving, it can illuminate if someone walks in front of the car, as an example. The warning light is yellow when you see it on the dash. It's hard to see in the manual because of the yellow color of the icon. I've attached the manual photo here.

I'm seeing the Warn and Brake Assist warning light illuminate upon car startup and stay illuminated.

Is anyone else seeing this?

Electric Macan EV Warn and Brake Assist warning light illuminates on car startup and stays illuminated porschebreakandwarninglight
 

W1NGE

Well-Known Member
First Name
Adrian
Joined
Jan 11, 2021
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249
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Location
Aberdeen, Scotland
Vehicles
GTS ST, Macan T (EV upgrade a tempter!)
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Hi Everyone,

I'm seeing an issue with the "Warn and Brake assist warning light". During normal driving, it can illuminate if someone walks in front of the car, as an example. The warning light is yellow when you see it on the dash. It's hard to see in the manual because of the yellow color of the icon. I've attached the manual photo here.

I'm seeing the Warn and Brake Assist warning light illuminate upon car startup and stay illuminated.

Is anyone else seeing this?

porschebreakandwarninglight.jpg
Are all sensors and windshield camera clean and free of moisture?
 
OP
OP
First Name
Stephen
Joined
Jan 6, 2025
Threads
1
Messages
6
Reaction score
7
Location
Kirkland, WA
Vehicles
2024 Porsche Macan 4 EV
Country flag
Thank you for responding.

Oh, that would be hilarious if my Porsche is telling me to wash it.

The car is currently in a high humidity locale. But it rests in a temperature and humidity controlled garage. On high humidity days, when cars exit the garage, they get condensation on the front windshield, the rear windshield, etc. until the interior and exterior humidity matches the new environment. I wonder if the humidity change is causing the sensor to trigger and hinder the safety systems.
 

W1NGE

Well-Known Member
First Name
Adrian
Joined
Jan 11, 2021
Threads
6
Messages
249
Reaction score
145
Location
Aberdeen, Scotland
Vehicles
GTS ST, Macan T (EV upgrade a tempter!)
Country flag
Thank you for responding.

Oh, that would be hilarious if my Porsche is telling me to wash it.

The car is currently in a high humidity locale. But it rests in a temperature and humidity controlled garage. On high humidity days, when cars exit the garage, they get condensation on the front windshield, the rear windshield, etc. until the interior and exterior humidity matches the new environment. I wonder if the humidity change is causing the sensor to trigger and hinder the safety systems.
I suspect it is - happens in UK too at certain times of the year.
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