What to Do When BYD Surui Cannot Recognize the Key?
3 Answers
BYD Surui cannot recognize the key? Here are the solutions: 1. Replace the battery; 2. Get a new key; 3. Replace the high-frequency receiver. Reasons why BYD Surui cannot recognize the key: 1. Insufficient battery power in the key; 2. Malfunction of the key itself; 3. Signal interference near the parking area; 4. Failure of the vehicle's central control system. The BYD Surui is a compact car with the following dimensions: length 4680 mm, width 1765 mm, height 1490 mm, wheelbase 2660 mm, fuel tank capacity 50 liters. It is equipped with a 1.5L naturally aspirated engine, with a maximum power of 80 kW and a maximum power speed of 5800 rpm.
I encountered an issue with my BYD Surui not recognizing the key, which was quite frustrating. At that time, I simply replaced the key battery with a new one, model CR2032, which is commonly available in supermarkets or auto shops. If that doesn't work, try using the spare key to start the car—this can help confirm whether the issue lies with the key itself. Also, check if the key has been exposed to moisture or strong magnetic interference, such as from nearby microwaves or other electronic devices, as these can affect the signal. If the system still doesn't recognize the key, try restarting the vehicle or turning it off and on again to reset the computer's recognition. If all else fails, take the car to a BYD service center to inspect the receiver module—it might need reprogramming or repair. To prevent such issues, avoid exposing the key to strong impacts or keeping it in a pocket where it could get crushed, and regularly check the battery life as a precaution.
From a technical perspective, the failure of the Surui key recognition usually occurs in simple aspects. First, check if the key battery voltage is too low—replacing it with a new one resolves most cases. Second, the internal chip of the key may be damaged and fail; test with a spare key to rule out this issue. Third, the vehicle sensor module might be faulty, located near the front compartment fuse box—try restarting the system by briefly pressing the one-touch start button. Sometimes, pairing anomalies cause recognition errors, and resetting the key requires professional equipment for matching. Remember that electromagnetic interference can disrupt signals, so avoid parking near high-current equipment like in garages. If the issue persists, take the car to a 4S shop for a comprehensive diagnosis of the receiver circuit—avoid disassembling it yourself to prevent damaging the wiring. Regular maintenance of the key battery lifespan is essential.
