Why can't the electric car move after being exposed to rain?

[SanHope]

Electric vehicles failing to start after being exposed to rain are usually caused by worn or aged and cracked wiring harnesses, water ingress into the controller, or faults in the speed control handle. Worn or aged and cracked wiring harnesses: Water ingress can lead to short circuits in the wiring, preventing the electric vehicle from starting. Corrosion at the connectors or wiring junctions of the electric vehicle can result in poor conductivity, and exposure to rain and humid weather further accelerates the aging of the wiring, leading to the vehicle's inability to start. Water ingress into the controller: This can cause short circuits at the wiring pins and abnormal output signals. Moisture or water ingress into the controller can lead to internal damage, short circuits, or poor contact. It is also necessary to check whether the battery has been exposed to water, as this can cause a drop in power and leakage. Fault in the speed control handle: If there is an internal wiring fault in the handle, replacing the connecting wires may suffice. If replacement is not possible, the entire handle may need to be replaced. Precautions for using electric vehicles: Owners should regularly inspect the wiring of their electric vehicles to prevent loose internal wiring, exposed wires, etc. It is advisable to avoid using the vehicle in high-temperature or rainy/snowy weather and not to park it outdoors. If the electric vehicle develops a fault, professional repair services should be sought, and self-disassembly or repair should be avoided.

[LincolnRose]

Last time my electric car wouldn't start after being rained on, it was really frustrating. Later I learned about electric vehicles - rainwater likely got into the electrical circuits, causing a short circuit or blown fuse. If the high-voltage battery pack isn't properly sealed, moisture can trigger the protection system to automatically cut power to prevent more serious damage, like poor contact in waterlogged control boards that disrupt signal transmission. Heavy rain can cause water to seep into plugs or cable connectors, easily leading to oxidation and corrosion, which becomes more troublesome over time. For safety, don't force-start the vehicle to avoid sparks or electric shock risks. Contact roadside assistance immediately to have the car towed indoors to dry, or take it to a professional shop for inspection and repair. Also have them check if the waterproof sealing rings have aged to prevent recurrence.

[HopeLee]

Speaking of electric cars breaking down in the rain, I have personal experience. That time during a heavy storm, I parked outdoors and couldn't start the car when I got home. I suspect the control module malfunctioned due to water ingress, as electrical components tend to crash when wet. The battery system's performance degrades quickly in humid environments, triggering the protection mechanism. It's advisable to check if the drainage holes are clear before driving in the rain, and don't let too much water accumulate in the wheel wells. If the car won't move, don't force it—open the windows to ventilate and reduce humidity, then wait an hour or so to see if it returns to normal. If not, call customer service immediately to avoid further damage. Regular maintenance is crucial—avoid high-pressure washing near the charging port during car washes.

[LeChristian]

Electric car won't move after rain, safety first! Water can short-circuit the electrical system or cause serious leakage risks, potentially even leading to battery fires. Immediately pull over and turn off the power, don't take risks. The main cause is insulation failure of high-voltage components due to moisture, which can trigger main controller shutdown. Remember to call for assistance, don't attempt DIY repairs to avoid accidents. Regular checks of sealing and waterproofing are crucial.