What does CH mean on the car dashboard?

[MacMason]

CH on the car dashboard represents the water temperature, which ranges from C to H. C indicates 60 degrees, meaning the water temperature has reached 60 degrees once the needle points to C. The red H mark represents 110 degrees, and the temperature can be estimated based on the span from 60 to 110 degrees. The water temperature indicator light is used to show the temperature of the coolant in the engine. Some indicators use colors to display different statuses: blue indicates the water temperature is too low, red indicates it is too high, and no light means it is normal. Common faults in the cooling system: 1. Insufficient antifreeze in the engine cooling system; 2. A faulty thermostat in the engine cooling system causing the water temperature to be too high; 3. The cooling fan in the engine cooling system not working properly, leading to poor heat dissipation of the coolant.

[LeThomas]

I remember when the ‘CH’ light appeared on the car dashboard, I was confused at first. Later, I learned that it stands for 'Check Engine' light, indicating that the engine control system has detected an abnormality. The most common causes could be sensor failures, such as a faulty oxygen sensor, or fuel system issues like clogged fuel injectors. Ignoring it may lead to increased fuel consumption, excessive emissions, or even a breakdown on the road. I recommend immediately checking if the fuel cap is tightened properly—sometimes it's just this small oversight. Then, drive to a professional repair shop to read the error codes with a diagnostic tool, and don’t delay too long. Regular maintenance, such as using quality fuel and periodic throttle body cleaning, can significantly reduce such occurrences. Drive safely and don’t let a small light turn into a big problem.

[OAlexis]

As an experienced driver, I've seen many car warning lights come on. 'CH' refers to the Check Engine light, which alerts to potential engine issues. Possible causes include insufficient fuel pump pressure, damaged ignition coils, or low catalytic converter efficiency, all of which can lead to reduced power and increased fuel consumption. I would first perform simple self-checks, such as looking for oil leaks or loose wiring connections. A diagnostic tool is very convenient; just buy one for home use and plug it into the OBD port to read error codes. But remember, if the light starts flashing, it indicates an urgent problem, and you should pull over and wait for assistance. Regularly replacing air filters and spark plugs can help prevent issues, as engine health is crucial.

[GavinFitz]

When the dashboard displays 'CH', it indicates the Check Engine light is warning of a fault detected in the engine system. Possible causes include an imbalanced air-fuel mixture, a clogged EGR valve, or sensor failure. Ignoring it can lead to decreased vehicle performance, non-compliant emissions, and increased risk of traffic accidents. It is especially dangerous at high speeds, as the engine may suddenly stall. It is recommended to pull over immediately and check for any unusual odors. If no major issues are found, proceed slowly to a repair shop. Do not attempt to disassemble anything yourself; instead, have a technician use professional equipment to diagnose the root problem. Safety is the top priority—address the issue promptly to avoid greater losses.