What are the reasons for the brake light staying on after the engine is turned off?

1 Answers
BryceRose
07/30/25 5:45am
After the engine is turned off, the brake light staying on is related to a faulty brake switch or a short circuit in the wiring. The specific reasons are as follows: Faulty Brake Switch: Manually replace the brake switch. Short Circuit in Wiring: Lack of brake fluid: Brake fluid plays a crucial role in the vehicle's braking system. When the driver presses the brake pedal, the force applied is transmitted by the piston in the master cylinder through the brake fluid to the wheel cylinders located at each wheel, causing the brake pads to contact the wheels and stop the vehicle. Damaged tail light bulb: The brake fluid reservoir has upper and lower lines. If the brake fluid level falls below the lower line, the sensor next to the reservoir will detect this and reflect it through the brake light on the dashboard. If the brake fluid level drops rapidly, it indicates a leak in the braking system. Brake pads need replacement: Note that if the parking brake is not released while driving, the light will also stay on. Therefore, first check whether the parking brake is released.
Was this review help?
18
1
Share
More Forum Discussions

Which brand does the Jetour X70 belong to?

Jetour X70 is a new product series under Chery Holdings. However, Jetour is not Chery's premium brand but rather a brand that focuses more on lifestyle. Currently, Jetour's target customers are young people in third-tier cities and towns. Below is relevant information: 1. Jetour X70: As the first SUV under the Jetour brand, the X70 perfectly showcases the brand's appeal. It is positioned as a mid-size 7-seater SUV. In terms of power, the vehicle is equipped with a 1.5T engine. The overall design of the Jetour X70 features closely connected headlights and grille, with chrome accents inside the grille. The fog light area includes four rectangular LED daytime running lights, complemented by chrome trim. 2. Jetour X70 Engine: The Jetour X70 is powered by a 1.5T turbocharged engine, delivering a maximum power of 108kW (147PS) at 5500rpm and a maximum torque of 210N•m between 1750-4000rpm. For transmission, it offers a choice between a 5-speed manual gearbox or an 8-speed automatic transmission.
7
5
Share

What does it mean to drive a motor vehicle with incomplete safety facilities?

Motor vehicles with incomplete safety facilities refer to those with potential safety hazards such as malfunctioning lights, steering, or brakes. Vehicles with incomplete safety facilities or components that do not meet technical standards are considered to have safety hazards. Below is an introduction to groups of people who are not suitable for driving: 1. Patients with a history of anemia: Anemia patients are prone to various complications, and exposure to harmful substances such as benzene and carbon monoxide can exacerbate the negative effects. 2. Women prone to colds, rhinitis, inflammation, or allergies to exhaust fumes and oil dust: Compared to men, women require a slower and gentler adaptation to industrial oils. Industrial oils are particularly unfavorable for women allergic to exhaust fumes and oil dust. Therefore, women suffering from rhinitis, inflammation, etc., should avoid driving as much as possible. Internal dampness and cold can also worsen the condition. 3. Patients with night blindness or glaucoma: Night blindness and glaucoma can cause patients to have difficulty seeing objects in dim light during the evening and dusk, increasing the risk of traffic accidents. Additionally, mountainous and foggy regions in western China with limited sunlight are prone to visibility disparities at night. Glaucoma can also impair daytime vision.
4
3
Share

What grade of engine oil is suitable for the Ford Kuga?

The Ford Kuga originally uses Mobil semi-synthetic engine oil with a grade of 5W-30. The 5W-30 grade has strong adaptability across most regions in China, but in extremely cold areas like Northeast China, it may be necessary to switch to engine oil with higher fluidity. Detailed introduction of the Ford Kuga: 1. Exterior: The latest Ford Kuga models have undergone multiple exterior detail upgrades. They feature a new mesh grille with chrome border trim. 2. Features: The latest Ford Kuga is equipped with a new internet car intelligent system developed based on Alibaba's AliOS, which better suits the usage habits of Chinese consumers and enhances the functionality and scope of the vehicle's system. 3. Performance: The engine in the latest Ford Kuga is characterized by powerful performance, quick start-up, and sustained acceleration. It utilizes twin-scroll turbocharging technology, allowing earlier turbo engagement and more vigorous power output. The maximum power is 180 kW at 5500 rpm, with a peak torque of 350 Nm available from 1750 to 4000 rpm, paired with an AWD intelligent four-wheel drive system.
13
5
Share

Why Can't Water Stains Exposed to Sunlight Be Wiped Off?

Black watermarks on white cars are mainly caused by calcium oxide carried in rainwater that settles on the vehicle, which can also commonly appear on glass. If the car is not washed for a long time after rain, the whitish substance is actually calcium oxide. For water stains, you can first try wiping them with a towel or sponge soaked in cleaning solution. If they cannot be wiped off, it indicates that the watermarks have penetrated the car paint, and the only solution then is polishing, which can be done using a polishing machine or clay bar. Below is relevant information about water stains: 1. Using Professional Cleaning Products: For water stains left on a car parked outside for a long time after rain, professional cleaning products can be used to remove them, such as water stain cleaners, cleaning wax, or clay bars. 2. Minimizing Polishing: However, it's important to note that while polishing can remove stubborn water stains, it is a consumptive maintenance process that reduces the thickness of the paint. Therefore, polishing should be done as infrequently as possible. If necessary, it is recommended to have polishing done at a professional auto detailing shop to avoid damaging the paint.
12
0
Share

How to Activate Dynamic Taillights on the 2020 Audi A4L?

To activate dynamic taillights on the 2020 Audi A4L, you need to flash the firmware and parameters, then modify the coding. Below are the detailed specifications of the Audi A4L: 1. The Audi A4L is equipped with a 2.0T four-cylinder turbocharged engine, delivering a maximum horsepower of 252 HP and a peak torque of 370 Nm. It has a curb weight of approximately 1.68 tons. The 0-100 km/h acceleration time is 6.6 seconds, paired with a 7-speed dual-clutch transmission. It features a front-engine, four-wheel-drive layout with five-link independent suspension at both the front and rear. 2. The Audi A4L comes with features such as tire pressure monitoring, ESP stability control, autonomous emergency braking, front and rear parking sensors, keyless start, keyless entry for all doors, a 12.3-inch full LCD instrument cluster with rearview camera, GPS navigation, Bluetooth connectivity, smartphone integration, and voice control. 4. The Audi A4L is fitted with Pirelli P Zero series tires sized 245/35 at both the front and rear, mounted on 19-inch five-spoke aluminum alloy wheels. It features ventilated disc brakes at the front and solid disc brakes at the rear, with a non-full-size spare tire and electronic parking brake.
16
1
Share

What are the symptoms of excessive carbon deposits in the idle motor?

Symptoms of excessive carbon deposits in the idle motor include: unstable power output during acceleration or overtaking, accompanied by dull abnormal noises from the engine; difficulty in starting the engine when cold, with continuously increasing fuel consumption; pungent exhaust fumes and a large amount of sludge and colloidal substances inside the exhaust pipe. Below is an introduction related to the idle motor: 1. Introduction: The idle motor is a component that controls the idle speed of a motor vehicle. When the engine runs without load, it is referred to as idling. 2. Function: The idle motor is primarily responsible for managing the vehicle's idle speed, aiming to adjust the idle based on the engine load during idling. The idle stepper motor is mounted on the throttle body and is used by the engine control unit to regulate engine idle speed. When the engine speed deviates from idle, the throttle valve adjusts to control the amount of air entering the intake manifold, operated mechanically by the accelerator pedal cable. The throttle has a bypass air passage that supplies air during engine idling (when the throttle is closed). The pivot of the automatic idle motor extends into the bypass air passage, regulating the air flow through it. The engine control unit uses input signals from various sensors to move the pivot of the automatic idle motor in and out of the bypass air passage, thereby adjusting the engine idle speed. The automatic idle motor begins operation when the ignition key is turned to the 'on' position. This switch signal is input to the ECU to determine whether the engine is in idle mode. Additionally, the motor's current position is fed back to the ECU by the motor position sensor.
15
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.