What does the 'hold' function on a car key mean?

[DelHayden]

Car key 'hold' refers to the function of long-pressing to open the trunk. By holding the 'hold' button for a few seconds, you can easily open the trunk, simplifying the process of opening the car door first and then the trunk. The requirement to hold the button for a few seconds to open the trunk is designed to prevent the danger of accidentally opening the trunk while the vehicle is in motion or under other conditions. For some cars, the 'hold' button also serves as a remote engine start button. By holding it for 2 to 3 seconds within a certain range, the car will start automatically. Car keys can be categorized into three types based on their operation methods: active operation, passive operation, and coil induction. The principle of active operation involves controlling the car door through the vehicle's electronic module and body control module. Coil induction operation mainly involves placing an encrypted chip inside the key. During the unlocking process, the vehicle's radio frequency transceiver verifies whether the key matches to determine if the engine can be started. Passive operation works when the owner enters the sensing range of the key system. As soon as the hand touches the door handle, the identity-recognition 'key' carried by the owner will receive a low-frequency signal sent by the car. If this signal matches the identity information stored in the 'key', the 'key' will be activated.

[ConnorDella]

My previous car key had a 'Hold' button, which meant pressing and holding it could remotely start the engine, allowing it to run in advance. For example, on a cold winter morning before heading out, I could press and hold that button for three to five seconds from my upstairs window, and the engine would start, warming up the car interior so it would be cozy by the time I got in. The same applied in summer—starting the engine early to cool down the car with the air conditioning. This feature is common in cars with keyless entry systems and is especially convenient for extreme weather conditions. However, it's important to note that the operating range is usually effective within 50 meters, and the car must be locked to prevent theft. Frequent use can accelerate battery aging, so it's recommended to activate it only a few times a month to optimize battery life. I remember the first time I used it was on a freezing day, and my friend was incredibly envious because her car didn’t have this feature. Overall, it’s quite practical, avoiding the need to wait inside the car for the temperature to adjust.

[Hudson]

I really like this feature. The 'Hold' function on the car key refers to the operation of pressing and holding the button to remotely start the engine. On my new car key, it's the button marked with a small flame icon. Just press and hold it for a few seconds, and the engine will start from a distance, with the car's air conditioning or heating automatically turning on. This is especially suitable for people like us who are always in a hurry, such as starting the car before going downstairs to work, so we can get on the road comfortably as soon as we get in. However, be careful not to use it recklessly in enclosed spaces like garages to avoid the danger of carbon monoxide buildup; a failing key battery might also cause malfunction, so just replace the battery regularly. Different car models may have different settings, so it's best for beginners to check the manual to confirm whether it's supported or not. All in all, it's a small trick that enhances daily convenience.

[DaniellaDella]

Regarding the meaning of 'Hold' on a car key, it primarily refers to the function of holding down the button to achieve remote engine start. When operating, you need to press and hold the key for a few seconds within close proximity to the vehicle. The key sends a signal to trigger the system and start the engine, typically equipped with vehicle safety measures such as requiring the doors to be locked. This allows for pre-conditioning the interior temperature, but it's important to note that signal interference or severe weather conditions may cause it to fail. With long-term use, it's advisable to check the battery and wear on the starting system. I discovered this through repeated practice and found that starting the engine only in safe locations is the most reliable approach.