OWNER GUIDE · 2026
17 mistakes Tesla owners keep making, and how to avoid every one.
The same mistakes keep showing up in comments, on forums, and from friends who just picked up a Tesla, and a lot has changed heading into 2026: new battery chemistry, new trims, new software, even hardware redesigns that fix old problems. Here are 17 mistakes to avoid, plus a few things that are less mistake and more something you want to know going in.
1. Charging the wrong battery chemistry to 100 percent
Teslas ship with 2 battery chemistries with opposite rules. NMC packs (Long Range and Performance models) want a daily limit around 80 percent, 90 when you need extra range, and 100 percent saved for the morning of a road trip: sitting at full charge stresses nickel-based cells and adds up over months and years. LFP packs (Standard Range) are the opposite: Tesla recommends 100 percent daily, and a full charge at least once a week to keep the battery management system calibrated. The car tells you which you have right on the charging screen: if the recommended limit defaults to 100, you have LFP; if it defaults to 80, you have NMC. Follow what the car says.
Supercharger corollary: 10 to 50 percent is the fastest part of the curve, and speeds drop off hard from 80 to 100. On road trips, 2 shorter stops to 70 or 80 percent are almost always faster than 1 long charge to full.
2. Leaving it unplugged for weeks
A Tesla is never fully off: software checks, battery temperature management, and Sentry Mode all draw power while it sits. Leave it unplugged long enough and the main pack drains until the 12 volt battery dies too, and then you are locked out: no app unlock, no screen. One owner's car sat for months and the manual hood release cable corroded, so they could not even reach the 12 volt to jump it. Tesla's advice is simple: a plugged-in Tesla is a happy Tesla. Going out of town? Plug in with the limit around 50 to 60 percent, turn off Sentry if the car is parked somewhere secure, and glance at the app occasionally. Newer cars use lithium-ion 12 volt batteries that are far more durable, but the drain issue applies to every model.
3. Using the manual door release like a handle
The button at the top of the interior handle is how you open the door; it drops the window to clear the frameless seal. The lever below it is the emergency release, for when the car has no power, and about 90 percent of new passengers reach for that lever first because it looks like the handle. Use it with power on and the window does not drop properly, which damages trim and door linkages over time. The car beeps and warns on screen every time. Brief your passengers, and know where the rear emergency releases are (under a flap in the door pocket) in case you ever need to talk someone through them.
Regulators have pushed on this design, and Tesla's answer is a new combined handle arriving on the Cybercab: a light pull triggers the electronic release, a hard pull engages the mechanical cable. Expect that design to spread across the lineup.
4. Showing up at a Supercharger without navigating to it
The car preconditions the battery to the right temperature when a Supercharger is set as the destination. Skip that and you can see 50 to 70 kilowatts instead of the 250 the station can deliver, especially in the cold, because the car is warming the pack and charging at the same time. Always navigate to the Supercharger in the built-in nav, even when you know the way. Bonus stall tip: older stations share power in A/B pairs, so if the site is not busy, do not park next to someone mid-charge.
5. Skipping Car Wash Mode
Tesla paint, especially on the 3 and Y, is not the thickest, and spinning-brush washes leave swirl marks that show on darker colors. Beyond paint, Car Wash Mode exists for a reason: it locks the charge port, kills the auto wipers, and folds the mirrors. Skip it and the wipers can trigger mid-wash or the port can pop open; a Cybertruck owner's entire screen went dark for about 5 hours after a standard wash, and Tesla's manual says damage from skipping the mode may not be covered. Touchless washes are the safest automatic option, hand washes are ideal, and a ceramic coating early on is one of the better long-term paint investments.
6. Having no plan for a flat
There is no spare, by design: weight and efficiency. Tesla's plan for you is roadside assistance, and it is smart to be more prepared than that: a compact inflator and a quality plug kit cover most punctures and get you to a shop. Aftermarket compact spares exist for every model and store under the trunk floor. The exact inflator and spare kit are in the accessories guide.
7. Curb rash
Tesla wheels sit nearly flush with the body for aerodynamics, which is great for range and terrible for curbs: a huge number of Teslas on the road wear curb rash, and refinishing is not cheap. The cameras help when parking, and mostly you just have to know it going in and give curbs a little more room than you would in another car.
8. Letting the trunk meet your garage
The Model Y liftgate reaches about 7.5 feet at full height. If your garage ceiling or open garage door sits lower, the trunk finds it exactly once. It happened here in the first week of 2020 Model Y ownership, straight into the garage door and the paint. The fix takes 30 seconds: stop the trunk at the height you want, then press and hold the button on the liftgate underside about 3 seconds until it chimes, and it saves that as the maximum. Newer software can even geofence it: lower at home, full height everywhere else. Re-check after a wheel change or on a sloped driveway.
9. Running Sentry Mode everywhere, or nowhere
Sentry is one of the best security features in any car, and it costs real energy: potentially 1 to 2 percent of battery per hour. The smart setup is Sentry on by default with location exclusions for home and any secure lot, so it records at the restaurant and the grocery store but does not burn battery overnight in your garage. Use a quality drive or SSD for footage (the included thumb drives can fail), and know that live camera streaming to your phone requires the Premium Connectivity subscription.
10. Getting surprised by the connectivity trial
Every new Tesla includes a Premium Connectivity trial, and it makes cellular streaming, live traffic coloring, satellite maps, and Sentry live view feel like standard equipment. When the trial ends, those go with it unless you subscribe; core navigation and everything essential stays. It is not a huge monthly cost. The mistake is not knowing the subscription exists until your map loses its traffic colors.
11. Not knowing the FSD situation before you buy
This one changed a lot. You can no longer buy Full Self-Driving outright on a new Tesla: it is a $99 per month subscription, and basic Autopilot's included auto-steer is gone from the new lineup. What comes standard is traffic-aware cruise control. If you want the car to steer for you at all, that is the subscription, a cost a lot of buyers have not considered. You get 1 free month with the car, and 3 free months through a referral link. The system itself is very good, nearly hands-off, and you are still responsible for monitoring it.
Buying used? Hardware 4 cars run the latest FSD; Hardware 3 cars do not, with a lighter version expected but not defined. If you want the latest tech used, look for Hardware 4, and note some used cars include FSD as a purchased package, which changes the math.
12. Overspending on home charging on day 1
The excitement move is dropping $1,500 or more on a wall connector install before knowing your actual needs. A regular 120 volt outlet adds 3 to 5 miles of range per hour: plugged in from 6 p.m. to 6 a.m., that is 36 to 60 miles overnight, which genuinely covers a 20 to 30 mile daily commute. The next step, a NEMA 14-50 outlet many homes already have, gets about 30 miles per hour with the mobile connector, enough for pretty much any daily scenario. The wall connector tops out around 44 miles per hour and looks the cleanest, at the highest cost. Track a week of real driving before spending anything: some people discover the $50 adapter was all they needed.
13. Configuration regrets
Choices made in purchase excitement follow the car forever. The white interior gets avoided over cleaning fears, and the synthetic material actually wipes down easily and holds up well (watch for jean transfer over long ownership); it also will not meaningfully keep the car cooler, because the glass roof and tint dominate interior heat, not seat color. Upgraded wheels look great on the configurator and permanently cost real range: on the Model Y the difference can be around 20 miles, shown right on screen while you order. Rear-wheel drive is the better value for a lot of buyers unless you live in serious winter weather or want the acceleration. And with the 2026 Model Y now offering Standard, Premium, and Performance trims, sit with the full feature breakdown before finalizing: the jump from Standard to Premium adds features people wish they had bought after the fact.
14. Ignoring software updates
Tesla pushes updates over the air more than any other manufacturer, and they need Wi-Fi and park. Never connect to your home network and you fall months behind, and skipping releases can push you further down the rollout priority list. These updates have delivered performance improvements, new FSD capability, range optimization, Apple Music, new UI layouts, dashcam upgrades: value you already paid for. Connect the car to Wi-Fi and let it do its thing overnight.
15. Getting caught off guard by winter
Cold batteries limit regenerative braking at first: the dotted line on the regen indicator means reduced regen until the pack warms, and the car now blends in the physical brakes automatically so one-pedal behavior stays consistent. Range drops 20 to 30 percent below the EPA estimate in real cold, across every EV, and comes back with the weather. The tool that fixes both: Scheduled Departure. Set your leave time and the car preconditions the battery and preheats the cabin on wall power while plugged in, so you start warm without spending range on it.
16. Ignoring what highway speed does to range
Aerodynamic drag makes the difference between 65 and 85 miles per hour massive in energy per mile, and the car shows it to you in real time. A 5 mile per hour cruise adjustment has moved a projected arrival charge from 4 percent to 15 percent on road trips here. FSD and cruise control help by holding speed steady, Chill mode moderates acceleration, and the route planner factors speed, elevation, wind, and battery state. If it says slow down or add a stop: trust it.
17. Not shopping insurance for this specific car
Sticking with a longtime carrier can work, and it might not be the best deal for a Tesla. Tesla Insurance, in a growing number of states, prices monthly off a Safety Score from real-time driving data: hard braking, aggressive turns, following distance, forced FSD disengagements. Smooth drivers can come in noticeably under traditional quotes; a dropping score raises your rate, and if behavior-priced insurance is not for you, that is valid. In California it operates without the real-time data. At minimum, run a Tesla Insurance quote against your carrier and 1 more option: viewers have saved thousands a year just by comparing 3 providers.
A little knowledge up front saves a lot of frustration and money later. Some of these mistakes date back to the first Model 3, some are brand new to this generation, and the cars keep improving through software and hardware fixes. For day-1 setup done right, see the accessories guide and the 2026 Model Y review.
From Ryan's March 2026 video. Some links on this site are affiliate links that earn a commission at no cost to you. FSD pricing, subscriptions, and trims change; the video and Tesla's site carry the current details.