@kezo, I don’t understand why there was no warning, the infotainment system usually gives a warning when it detects the battery is low. Also, we’ve had the car 14 months and this is the third keyfob battery, the original one and two Energiser Lithium that we put in. Does the 2035 last longer?
One negative of using lithium – Alkaline batteries have a specific voltage range which can be reliably monitored as through use. lithium battery’s doesn’t always provide a good indication of there charge level remaining because they have nominal voltage the same as alkaine, but can just drops of a cliff without warning, especially in devices that are designed for alkaline use, lithium’s behaviour isn’t always guaranteed, as they can appear full and then just die due to how they are reported Tx / Rx with the car. Different brands can also react differently.
Looking around, the Enyak uses a 2032 alkaline from factory. I’d be inclined to re-fit with an alkaline and your likely find your car reports when the battery gets low however, as long as your aware of the risks you could try a GP lithium and carry a couple of alkaline in the car as an emergency if you can get any, as alkaline are getting harder to find branded.
The nominal capacity of 2032 is around 225mAh and a 2035 around 235mAh or extra life battery’s around 1.5x the nominal capacity. CR2035 is more of a specialised battery and cn be difficut to pick up from your averge shop.