Delivery day gets most of the attention: the inspection, the paperwork, the walk-around. What trips up new owners is usually smaller and comes a few days later, once the excitement settles and the car is just… a car you have to actually operate. A handful of habits and assumptions cause most of the early frustration. Here’s what to get right in the first week.
Charging to 100% every night without knowing your battery chemistry
Tesla’s charging guidance depends on which battery pack is in your car, and mixing up the two leads to unnecessary wear. For standard NCA/NMC packs (most Long Range and Performance trims), Tesla tells owners to charge to 80% or 90% for daily use and save 100% for road trips. For the LFP pack used in rear-wheel-drive Model 3 and Model Y trims, the advice flips: Tesla recommends keeping the charge limit at 100% and fully charging at least once a week, because LFP chemistry tolerates a full charge without the same degradation risk and needs the occasional top-off for accurate range readings (InsideEVs). Check your car’s spec sheet or the charging screen in the app before you set a limit out of habit.
Assuming you have two key cards
Tesla has historically included two RFID key cards with every new Model 3 and Model Y, meant to serve as a backup to the phone key. Owner’s manual language confirming that has quietly disappeared, and reporting indicates Tesla may now sell key cards separately, at roughly $40 each, rather than bundling them (InsideEVs). The phone key works well day to day, but a dead phone, a software glitch, or a service visit will leave you locked out with no backup if you never checked what actually came in the car. Confirm what you received before you need it.
Running Sentry Mode nonstop without watching what it costs you
Sentry Mode uses the car’s cameras and onboard computer to record while parked, and it draws meaningfully on the battery to do it. Tesla’s own engineering team has cited overnight drain around 7.2 kWh, roughly 10% of a Long Range pack’s capacity, in a single day of use, and said a 2024 software update was targeted at cutting that by about 40% (Electrek). Leaving Sentry on by default in a driveway or a garage you already trust can quietly eat into your range before you’ve learned your car’s normal consumption. Decide where you actually need it rather than leaving it on everywhere by default.
Expecting a charging cable in the trunk
Tesla stopped including the Mobile Connector (the cable that lets you charge from a standard household outlet) as standard equipment with new vehicles, selling it separately instead (InsideEVs). If your home Level 2 charger installation is still pending, or you’re relying on outlet charging for the first week, don’t assume the car came with a way to do that. Check your order and the frunk before delivery day, not after.
None of these are dealbreakers, but each one is an easy problem to avoid entirely by spending ten minutes with the app and the glovebox contents before your first full week of driving.
Photo by 04iraq.
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