We shared some information about this in the owners meet, but just updating here as well:
Some of you have reported that you see a significant drop in the tyre pressure even when the vehicle is left idle for a couple of days. We took up this issue internally, and did extensive testing with internal vehicles and did not find a significant drop in the tyre pressure. Over a range of vehicles in production and test environments, under a variety of test conditions, we observed ~1Psi pressure drop in a week. The drop in tyre pressure of a couple of PSI is normal for all tyres, but it’s likely there’s a micro-puncture or other issues as well.
Nevertheless, if you notice the sudden drop in pressure, we ask that you report this to the customer service team immediately, without filling air, or taking corrective measures. We’ll arrange for your vehicle to be picked up and investigate the issue to gather more information on what the problem could be and fix it from our end.