There are two modes for the brightness and colour setting: Daytime mode and Nighttime mode. You can set the different colours and brightness in different two modes, then you can turn on/off the headlight to switch between Daytime and Nighttime modes after you connect the Yellow wire( in the power cable) to the headlight fuse.
First, use the tachometer to determine whether the car starts. Nowadays, the noise of car engines is very low, almost at zero decibels. Sometimes in a slightly noisy environment, it is difficult for us to determine whether the engine has been started by the sound. Some beginners will make misjudgments and may restart the engine. , causing damage to the motor of the car. The correct way is to observe the tachometer of the car. When the car is not running, if it is in an idle state, the pointer of the tachometer will indicate a position above 700 rpm. If the vehicle has not started, the pointer will point to the zero scales.
Second, determine the timing of shifting a manual transmission car. When some beginners drive a manual transmission car, the embarrassing phenomenon of the vehicle stalling often occurs, which is the timing of not mastering the shift. The correct way is to release the clutch slowly when the engine speed is less than 1000 rpm and start in 1st gear. When the engine speed is between 1000 rpm and 2000 rpm, change to the second gear and drive when the engine speed reaches 2000 rpm. When the speed of the engine reaches between 3000 rpm and 4000 rpm, change to the fourth gear and drive when the engine speed reaches between 4000 rpm and 5000 rpm. When driving in fifth gear, if the speed is low and high, the engine will stall, and if the speed is low, the engine will make a huge roar.
Third, the safe working area of the engine is displayed. The tachometer of the car rotates clockwise, from low to high, showing the rotation speed of the engine. If the pointer points to the red marked part on the tachometer, it means that your car's engine is already running at a high speed, reaching more than 6000 rpm, which is too high for a long time. The speed will cause the lubrication function of the engine to be abnormal, and the heat dissipation system will be overburdened, which will cause great damage to the engine.
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