What is the reason for the red exclamation mark on the car dashboard?
3 Answers
The reasons for the red exclamation mark on the car dashboard: 1. Transmission clutch overheating; 2. Fuel cut-off system intervention or malfunction; 3. Parking sensor failure; 4. External light failure; 5. Engine oil pressure sensor failure; 6. Traction control system warning or malfunction. An exclamation mark in a circle with brackets is the brake system warning light, which mainly lights up under the following circumstances: 1. The light comes on for a few seconds after turning on the ignition switch and turns off after starting the engine; 2. It lights up when the handbrake is pulled up and turns off when released; 3. The brake fluid level is too low, and it lights up while driving; 4. The brake system malfunctions and the light comes on.
I've been driving for over 20 years and have encountered the red exclamation mark warning light on the dashboard several times, which always gave me a scare. This light typically indicates serious issues with the braking system, such as the parking brake not being fully released or insufficient brake fluid. I remember one time on the highway when the light suddenly came on. I immediately pulled over to check and found that the parking brake was stuck; adjusting it solved the problem. Another time, it was due to worn brake pads in an older car, causing the fluid level to drop and trigger the warning. ABS malfunctions can also activate this light, leading to unstable steering or ineffective braking. Never ignore this warning light—if it comes on, stop the car right away. First, check the parking brake status, then inspect the fluid reservoir level. If the issue persists, head to a repair shop immediately. Safety is more important than time. Regularly checking your braking system every month can prevent many problems.
As someone who frequently repairs cars, I can say that the red exclamation mark light on the dashboard mostly indicates a danger in the braking system. Common causes include lack of brake fluid, faulty fluid level sensor, malfunctioning handbrake switch, or ABS controller issues. During diagnosis, first use an OBD device to read the fault code to determine the specific issue, such as a faulty wheel speed sensor affecting brake distribution. If the fluid is insufficient, top it up with brake fluid that meets SAE standards, and watch for signs of leakage. A lit handbrake light may indicate jamming that requires cleaning. ABS problems are often caused by dust accumulation or electrical faults and need professional handling. The important reminder is never to continue driving, as the faulty brakes may fail and cause an accident. It is recommended that car owners check brake pad wear and replace fluids every six months to ensure safety.
