How to Remove the 80 km/h Speed Limit on New Energy Vehicles?
3 Answers
In most cases, when the vehicle is stationary, pressing this button sets the default speed to 30 km/h. The speed at which the button is pressed becomes the trigger point for the speed limit. In non-cruise control mode, press the LIM button, then press the SET button to activate adjustment. Use "RES/+" to increase the speed limit value or "SET/-" to decrease it. When the speed limit function is activated, as long as the throttle depth does not exceed 95%, the vehicle generally will not exceed the set speed limit.
I'm the kind of person who loves researching automotive electronic systems. The speed limit of 80 km/h for new energy vehicles is usually set by the ECU software. To remove it, you might need to reprogram through the OBD port or update the firmware. Some tuning shops offer specialized tools, but it's quite risky—improper operations can cause system errors, such as motor overheating or battery short circuits. The government sets the 80 km/h limit for safety reasons, as the structure of small electric vehicles isn't suited for high speeds, making them prone to losing control or rolling over when speeding. After removing the limit, energy consumption surges, range drops by more than half, and battery aging accelerates. I've seen cases where insurance refused claims due to unauthorized modifications. I recommend first checking with a 4S dealership to see if a legal upgrade is supported, or consider buying a high-speed model instead of risking it for speed. It's more practical to stick to the speed limit while driving to protect yourself.
As a seasoned driver who has owned an electric vehicle, I once tried to remove the 80 km/h speed limiter. That time, I was in a hurry to get to another city and felt 80 was too slow, so I bought a tuning tool online and tinkered with it myself. The result? The car's range dropped from 300 km to 150 km, and electricity costs soared. I also noticed much faster tire wear due to aggressive acceleration, which put a heavy load on the braking system. Replacing the controller and parts cost money, and hiring a professional technician set me back a few hundred bucks. To be honest, even though I could hit 100 km/h after the modification, the car felt unstable and floaty, and I nearly had a few close calls with emergency braking. Later, I regretted it and realized the speed limit was the manufacturer's thoughtful design—safety first. Modifications aren't a long-term solution; sticking to the factory settings for daily driving is the way to go.
