Can You Still Drive with the Exhaust Controller Yellow Light On?

[GiaLynn]

You can still drive with the exhaust controller yellow light on, but you should get it checked as soon as possible. The specific reasons for the exhaust brake indicator light turning yellow include: the handbrake is not released or not fully released, or a false fault occurs, causing the car to report a fault code but operate normally, possibly due to an operation exceeding the computer's control range, resulting in a fault code feedback from the computer; another reason could be an issue with the handbrake indicator light switch or wiring, or an oxygen sensor fault, which can be felt through visual inspection and driving experience and severely affects the engine's normal operation. For example, obvious engine power loss is likely due to an oxygen sensor problem. Vehicle fault lights are mostly caused by the fuel emission system. When the fault light is on, start and turn off the vehicle three times, then observe whether the fault light remains on. If it stays on, you need to promptly check the fault code at a repair shop to determine whether it's an engine problem or a sensor fault. If it turns off, it may be an occasional fault and does not require immediate inspection.