What battery does a Volkswagen car key use?

[JonathanFitz]

Volkswagen car keys generally use a 3V battery, typically of the CR2016 or CR2025 type. Button cell batteries are widely used in car keys, and the button cell type is almost one of the most universal car key batteries. The CR2016 battery has a diameter of 20mm and a thickness of 1.6mm. The usage rate of the CR2025 model is much lower than that of the CR2016, mainly because this type of battery is thicker than the CR2016, and car keys may malfunction during use. When replacing the battery, it is advisable to choose high-quality batteries. Volkswagen (German: Volkswagen) is an automobile manufacturing company headquartered in Wolfsburg, Germany, and is the core enterprise of the Volkswagen Group, one of the world's leading automobile manufacturers.

[DelAshlyn]

Volkswagen car keys generally use CR2032 button batteries. I personally often use this model and find it compact yet durable, available at Walmart or JD.com. Replacing the battery is quite easy: gently pry open the key casing with a coin, remove the old battery, and replace it with a new one, ensuring the positive side faces up to avoid incorrect placement. If the key remote becomes unresponsive or the range shortens, it's most likely due to a depleted battery. I recommend replacing it approximately once a year, especially in winter, as low temperatures can reduce battery performance. Keeping a spare battery in the car is a good idea; if the key stops working, manually open the car door first and then check the battery to avoid panic. Additionally, Volkswagen key designs are quite reliable, but batteries are consumables—don’t delay replacement for too long to avoid compromising locking security.

[Lauren]

From driving Volkswagen cars until now, I remember the key fob batteries have always been CR2032, much simpler than the older models. These batteries typically last one to two years, but drain faster with frequent button presses. When you notice the remote stops responding or doors won't unlock, it's usually time for a replacement. My routine is to pry open the key fob casing with a small tool—just be mindful of the battery orientation when inserting the new CR2032. I keep a spare pack in my toolbox; buying them in bulk sheets is more economical. While old mechanical keys required no batteries, today's smart keys bring convenience with added hassle, especially in winter when issues arise more often. Timely battery changes prevent getting locked out, saving both money and peace of mind.

[OMiles]

The battery in my Volkswagen car key is a CR2032. Last time, my daughter couldn't open the car door with the key, which gave her quite a scare. Later, we found out that the button battery needed to be replaced. The process is simple: my husband used a tool to open the key cover and replaced it with a new battery. Now, I keep some spare batteries in my wallet, just in case. If the key has issues, don't panic, try manual operation. Regularly checking the battery can reduce risks, especially with kids around—safety first.