What does the square exclamation mark in a Ford car mean?

2 Answers
RuthLee
09/07/25 2:21am
Ford's yellow exclamation mark inside a square indicates that the vehicle's coolant reservoir is low on coolant, and it is necessary to promptly add coolant to the reservoir. Continuing to drive without addressing this issue may cause irreversible damage to the vehicle. Below is more related information: 1. Adding coolant: To add coolant to the car, open the driver's door, pull the hood release lever, lift the engine hood, slowly unscrew the cap of the coolant reservoir to release internal high-pressure gas, and then fill the reservoir with coolant up to the MAX level. 2. Low coolant level: When the coolant level is low, the warning light will illuminate, displaying different colors based on the severity of the issue—yellow indicates a minor issue, while red signifies a more serious problem. The light will only turn off after the issue is resolved.
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VonJudah
09/18/25 8:40am
I noticed a square exclamation mark light illuminated on the Ford's dashboard, which is typically an important warning signal. It could indicate a brake system malfunction, such as insufficient brake fluid or a sensor issue; it might also mean the electronic control unit has detected an abnormality, like ABS system failure. A friend's car once had a similar situation, which turned out to be a faulty brake light switch causing a false alarm. My suggestion is to safely pull over immediately, check if any other warning lights are on the dashboard, then consult the owner's manual for symbol meanings. After confirmation, don't drive too far and head straight to a repair shop for diagnosis - brake failure on highways would be disastrous. Additionally, regular brake system maintenance can effectively prevent such issues, and fluid level checks are simple yet crucial.
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