
Newly manufactured cars generally come with two keys, both identical in style and functionality for the convenience of the owner. Car keys are typically categorized into three types: Mechanical Key: The primary and spare mechanical keys are identical. If the primary key is lost, you can simply purchase a key blank and have it cut to match the spare key. However, if someone finds the lost key, they can easily unlock the car door and start the vehicle. Standard Remote Key: A standard remote key consists of a remote control plus a mechanical key. If one remote is lost, you only need to take the spare remote and a newly purchased one to the dealership for reprogramming, after which the lost remote will become invalid. Chip Key: If a chip key is lost, you can purchase a new key and bring both the spare key and the new one to the dealership for reprogramming. In this case, anyone who finds the lost key can only use the mechanical key to open the door but cannot start the engine.

When picking up a new car, you typically receive two keys - one primary and one spare as standard configuration. Both cars I purchased myself came this way, with the primary key used daily and the spare kept in the home safe. However, with the rising cost of proximity keys, I've heard some imported models are reducing this to just one key, with additional keys costing over 2,000 yuan if purchased separately. If two people in the household frequently drive, it's advisable to confirm the number of keys with the salesperson beforehand to avoid future hassles. Also, during used car transfers, always remember to verify both keys are present - many disputes arise from missing keys.

Traditional car keys always come in pairs, a standard configuration since the mechanical key era. Nowadays, it's more common to have a remote key paired with a spare mechanical key. For instance, when I lost my proximity key, I used the spare mechanical key to temporarily unlock and start the car. However, it's important to note that brands like BMW use electronic-mechanical keys, which rely entirely on battery power. In recent years, new electric vehicles have started adopting smartphone digital keys, while physical keys have become optional extras that require additional payment. Before taking delivery of the vehicle, always confirm the number of keys included in the package.

Generally, two keys come as standard, but it depends on the brand and model. Budget cars usually provide two identical-function keys—my domestic car came with two remote keys. However, premium vehicles may differentiate between primary and secondary keys, with restricted access for the secondary key, such as being unable to open the glove box. A friend once spent over 5,000 yuan on a new key—absolutely shocking. Strongly recommend storing the spare key in a dry place at home, separate from the main key. I've seen too many heartbreaking stories of losing both keys together. Replacing the entire lock system is the real financial nightmare.

Don't take the salesperson's verbal promises at face value. Two keys are common practice but not mandatory. Some models I've handled only come with one smart key plus a card key, which bends and breaks easily. Rental companies know the importance of keys best—they always check the number of keys when taking back a car, deducting 800 from the deposit for each missing key. Here's a lesser-known fact: spare mechanical keys in some models can start the engine but trigger the anti-theft alarm—better check the manual first. My advice? Put contact labels on new car keys immediately—way cheaper than duplicating keys.

There are physical keys and emerging solutions. Traditional fuel-powered vehicles usually come with two: a primary key with remote control, and a spare key that might be simplified to a mechanical version. Nowadays, electric vehicles offer more variety, like providing card keys and phone-bound access, making physical keys an optional extra. A friend had to pay 1,200 yuan to replace a lost Tesla physical key. Don’t dismiss mechanical keys for their plain look—they can be a lifesaver when the battery dies in winter. And remember to keep them away from the washing machine—just last week, a waterlogged car key was fished out, with repair costs enough to buy ten pounds of pork ribs.


