What Causes the Brake Pedal to Not Depress and the Engine to Not Start with One-Button Start?

2 Answers
VonSerenity
07/24/25 7:53am
Possible reasons: The car is out of fuel, the battery is faulty, or the spark plug is malfunctioning. Below are the relevant details: 1. Battery: A battery is a type of cell, also known as an accumulator, which works by converting chemical energy into electrical energy. The battery commonly referred to is a lead-acid battery, which mainly uses lead and its oxides as electrodes and sulfuric acid solution as the electrolyte. 2. Spark Plug: The spark plug is a crucial component of the gasoline engine's ignition system. It introduces high voltage into the combustion chamber, causing a spark to jump across the electrode gap, thereby igniting the combustible mixture in the cylinder. It mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell.
Was this review help?
8
2
Share
BrandonRose
08/11/25 3:31am
I once drove a car with a push-button start and encountered a situation where the brake pedal couldn't be pressed down and the car wouldn't start, which took me quite a while to figure out. This issue is usually caused by insufficient brake vacuum boost, which requires the engine to be running to generate vacuum. If the vacuum is lost after the car is turned off, the brake pedal will become stiff. Another possibility is a dead or weak battery, which prevents the push-button start system from having enough power to activate the brake sensor. Alternatively, there might be a mechanical blockage in the brake system, such as a stuck brake pump or a brake fluid leak, requiring a check of the fluid level. Failure to start could also be due to the gear not being in the park position or a malfunctioning push-button start button. My suggestion is to first try push-starting the car to restore the vacuum boost. If that doesn't work, check if the battery terminals are loose. In severe cases, seek help from a repair shop immediately.
Was this review help?
13
0
Share
Expand All
More Forum Discussions

How to Deal with Unpleasant Odors from Car Air Conditioning?

Methods to handle unpleasant odors from car air conditioning: 1. If the odor is not very strong and only slight, you can park the vehicle in the sun, adjust the knob to the warm air setting, then set the fan to the highest speed, and open all doors to allow the dirty air to escape outside; 2. Clean the air conditioning system, including the intake ducts and the dust and dirt on the evaporator. If the air conditioning evaporator hasn't been cleaned for a long time, it may be covered with dust, which needs to be carefully brushed off; 3. To completely eliminate odors inside the car and cut off the source of the odor, it is necessary to replace the air conditioning filter. During regular use of the air conditioning, pay attention to using the external circulation in relatively clean environments to purify the air inside the car. When driving in areas with dirty external environments, do not turn on the external circulation to prevent dirty outside air from entering the car.
3
5
Share

How many kilometers do tires need to be replaced after driving?

Tires need to be replaced after driving 50,000 to 80,000 kilometers. If there are no obvious cracks or signs of aging on the tire surface, you can check the distance between the wear indicators in the main drainage grooves and the wear-resistant layer. There are also triangular wear indicators on the tire crown. If the wear-resistant position is almost level with the wear indicators in the drainage grooves or the wear indicators on the tire crown, it indicates that the tires need to be replaced. Tires are circular elastic rubber products assembled on various vehicles or machinery for rolling on the ground. They are usually mounted on metal rims to support the vehicle body, cushion external impacts, maintain contact with the road surface, and ensure the vehicle's driving performance. Tires are often used under complex and demanding conditions, so they must have high load-bearing capacity, traction performance, and cushioning performance.
9
2
Share

What Does an Intravenous Drip Clean in a Car?

An intravenous drip for cars is primarily used to clean the intake system, fuel system, and three-way catalytic system. The advantages of this cleaning method include minimal mechanical damage to components, the use of specialized cleaning agents that are harmless to the vehicle's three-way catalytic system and oxygen sensors, and its effectiveness as a pre-wash for stubborn carbon deposits in the combustion chamber, leading to better cleaning results during subsequent fuel system cleaning. The intake system consists of components such as the air filter, air flow meter, intake pressure sensor, throttle body, auxiliary air valve, idle control valve, resonance chamber, power chamber, and intake manifold. The fuel system typically includes the fuel pump, fuel filter, and fuel injectors, and its function is to ensure the required fuel flow under various engine operating conditions and circumstances.
10
5
Share

What are the trunk dimensions of the Hyundai Elantra?

The trunk dimensions of the Hyundai Elantra are 1070mm in length, 1040mm in width, and 560mm in height, with a volume of approximately 460 liters. If you require more storage space, you can fold down the rear seats to increase the capacity. The trunk also comes equipped with emergency tools. The Hyundai Elantra is a compact car produced by Beijing Hyundai, with overall dimensions of 4610mm in length, 1800mm in width, and 1450mm in height, and a wheelbase of 2700mm. In terms of suspension, the Hyundai Elantra features a MacPherson strut front suspension and a torsion beam rear suspension.
16
4
Share

How Often Should You Change Your Car's Transmission Fluid?

Car transmission fluid should be changed every two years or every 40,000 kilometers. However, this varies depending on the vehicle model. Different models have different requirements. For Japanese models, it is recommended to change the fluid every 40,000 to 80,000 kilometers. For vehicles that frequently drive at high speeds, it is advisable to change the fluid approximately every 40,000 kilometers. Transmission fluid is an oil product that keeps the gear system clean, ensuring the transmission operates properly and extending the lifespan of the transmission components. If the transmission fluid is not changed for a long time, the fluid in the tank will become dark and thick, obstructing the radiator's ability to dissipate heat. This can cause the transmission fluid temperature to rise excessively during driving, thereby affecting the transmission's service life.
15
1
Share

What engine does the Dongfeng Fengshen H30CROSS have?

Dongfeng Fengshen H30CROSS is equipped with a 1.6L naturally aspirated engine, which was independently developed by Dongfeng R&D Center. This engine is developed based on PSA's engine of the same displacement. The engine adopts four-cylinder double overhead camshaft four-valve technology and also features Double VVT technology. In terms of appearance, the front face of the car adopts a U-shaped large-mouth design. Unlike the concept car, although the grille is still a three-bar horizontal grille, the chrome decorative strips have been changed to a wide style. Moreover, the front bumper cover is the same color as the body, giving it a warm and restrained look, further highlighting its family-oriented positioning. For the interior, the Dongfeng Fengshen H30CROSS mainly features a dark interior color scheme, with silver decorative elements added indirectly, paired with red and black fabric seats, giving it a very sporty feel.
2
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.