Why are the Citroen C4 S and snowflake symbols flashing simultaneously?

[MadelineRose]

Citroen C4 S and snowflake symbols flashing on the dashboard may be caused by: 1. Low outdoor temperature: When driving in an environment with outdoor temperatures below 4 degrees Celsius, the outdoor temperature sensor measures the temperature and transmits it to the control system via circuits. After receiving the information, the control system sends it to the dashboard, which then illuminates the snowflake light to alert the driver to drive cautiously. 2. Damaged outdoor temperature sensor: If the car's outdoor temperature sensor is damaged, it may collect incorrect outdoor temperature information and transmit it to the dashboard through the circuits and control system. 3. Signal transmission error.

[LeSamuel]

I've encountered a similar situation while driving a Citroen C-Quatre S. If the snowflake symbol flashes along with other dashboard lights simultaneously, it usually indicates a minor issue with the vehicle's low-temperature warning system. Normally, the snowflake light flashes to remind you to drive carefully when the outside temperature is low and roads may be icy, but abnormal flashing or persistent illumination indicates the problem. Common causes include a dirty or dust-covered front temperature sensor leading to misjudgment, minor software bugs in the electronic control unit, or loose wiring connections causing unstable signals. Last time my car had this issue, it was due to excessive dust accumulation on the sensor, causing constant flashing when the weather got slightly cooler. For a DIY solution, simply stop and clean the sensor location (usually near the front bumper). If that doesn't work, try restarting the vehicle or using a diagnostic tool for inspection. Long-term neglect may mislead drivers into misjudging road conditions, so it's recommended to get a professional check-up at a 4S shop to avoid accidents.