What are the consequences of leaving a vehicle parked for a long time?

[LaSkylar]

The consequences of leaving a vehicle parked for a long time are: 1. The battery's lifespan will shorten, affecting the overall vehicle usage; 2. The engine or transmission oil and lubricants may congeal or deteriorate; 3. The brake pads and discs, being in a tense state for a prolonged period, may stick together; 4. The part of the tires in contact with the ground may deform. Methods to start a vehicle that won't start after long-term parking include: 1. The push-start method: engage first gear and slowly release the clutch, using the wheel's rotation to drive the engine's flywheel; 2. The jumper cable method: connect the cables to both the non-starting vehicle and the assisting vehicle.