What are the disadvantages of modifying a smart key?
2 Answers
There are impacts. Although convenient, modifying the original car wiring poses safety hazards. Below are relevant introductions about car keys: 1. Precautions: If a car key is lost, the original key data should be cleared promptly. Upon discovering the loss of a car key, it is advisable to visit a 4S store as soon as possible for key matching. The original key data stored in the car's computer should be cleared, and then the spare key should be rematched through online diagnostics. 2. Lost key matching: It is recommended to go back to the original 4S store for matching. Since the password of the car's original remote control is exclusive and specially matched, this also ensures the safety of the consumer's vehicle usage.
I always thought modified LCD car keys looked pretty cool, but after using one myself, I found quite a few pitfalls. First, the battery life is terrible - while the original key fob lasts 2-3 years without a battery change, this one needs charging weekly. Forget to charge it before going out and you're stuck. Second, the failure rate is surprisingly high - last time during rain, the screen went haywire and I couldn't unlock the doors at all, eventually needing roadside assistance. Not to mention modifications can easily interfere with the car's original systems; the dealership explicitly told me this counts as unauthorized modification, voiding the entire vehicle warranty. Most annoying is the user experience - touchscreen buttons lack tactile feedback, winter gloves make accurate pressing impossible, nowhere near as satisfying as the instant click of a traditional key.
