Does the battery replacement have to go by VIN?

No, the replacement 12-volt battery does not have to be purchased by VIN, but using the VIN is a reliable way to identify the correct one.

As stated, it doesn't go by VIN, unless you just said, it's a Ford Escape with the 1.5. That is because they offered that vehicle in a conventional and a hybrid and they take a different battery. Plus the VIN means that they can get the correct battery and options easier than searching just on make and model. For example the non-hybrid version uses a common BCI Group 48 AGM battery. The hybrid version however uses a BCI Group 140 R which is a smaller and reverse battery terminal design. Using the VIN ensures you get the correct one. In both cases, if it has the one touch windows, you will need to do the initialization procedure once the battery is installed. Using the VIN would also tell the store if that option is installed and give the initialization procedure. That is handy if they are one of the places that also installs a battery in their parking lot.

Thanks

You are welcome. Please return anytime with your automotive questions.