Can a Modified One-Key Start System Be Paired with a Key?
2 Answers
Modified one-key start systems can be paired with keys. Solution: Visit a 4S store to replace the remote key. Simply match the code on the key with the one in the car. A remote key utilizes the wireless remote function of the central locking system, allowing you to unlock and lock the doors from a distance without inserting the key into the lock. Cars typically come with two keys—one for regular use and one as a spare. The method to modify a one-key start system is as follows: Install the induction device on the door handle, disassemble the dashboard and door panel, take out the wiring harness to be connected, solder the one-key start device wiring to the connector, place the original car's start switch in the ACC position, plug in the prepared wiring harness, and match the key.
The guy at the modification shop last time told me that the key matching for aftermarket one-button start systems mainly depends on what system you're using. Legitimate modification parts usually come with key matching features, but you'll need to bring the spare key to the shop for computer programming. Don't cheap out and buy no-name brands—my colleague installed a cheap one, and within six months, the key couldn't be matched anymore; the system just wouldn’t recognize it. Another pitfall is that some car models’ original anti-theft data gets overwritten after modification. If you need a replacement key later, you’ll have to restore the original data first, which is a huge hassle—the labor cost alone could buy you a new key. Before modifying, make sure to clarify the process and cost for future key replacements.
