TeslaFi 2FA: how to set up an authenticator app
By the Novaz team · Updated October 29, 2026
Novaz steps checked against version 1.0.5
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TeslaFi is a subscription data logger for Tesla cars, and now Rivian ones too: it records your drives, charges, battery health and parked time, and sends alerts. It's easy to mix up two logins here. Your Tesla account is the one you approve on Tesla's own sign-in page when you connect the car, and TeslaFi never sees that password. Your TeslaFi account is a separate login, with its own username and password, on teslafi.com (TeslaFi). This guide is about the second one.
TeslaFi offers time-based (TOTP) two-factor authentication (2FA) on every account. It's optional, and TeslaFi's pages don't mention text-message codes or any other second step. This guide uses Authenticator App - Novaz on iPhone, but any authenticator app works the same way.
How we checked this guide: the TeslaFi facts come from TeslaFi's security page and its help center, linked below, which we read on October 22, 2026. The help center's web pages refused automated requests, so we read its articles through the help center's own public article feed. TeslaFi's pages don't walk through the setup screens, and we haven't tested them on a TeslaFi account, so what you see may differ. The Novaz steps are checked against the app, version 1.0.5.
Turn on 2FA with an authenticator app
TeslaFi's security page gives one line on where the setting lives: two-factor authentication "can be configured under Settings → Account" (TeslaFi). Its help center has no step-by-step article. In practice:
- Sign in at teslafi.com with your TeslaFi username and password.
- Open Settings, then Account, and find the two-factor option.
- If TeslaFi shows a QR code, open Novaz, tap +, then Scan QR code, and point the camera at it. If you're on the same iPhone, take a screenshot and tap +, then Choose a photo. See scanning a QR code on the same iPhone.
- If you'd rather type a key, tap +, then Enter key manually. Fill in Service (for example, TeslaFi), your username as the Account, and the key as the Setup key. See What is a 2FA setup key?
- Enter the current code from Novaz when TeslaFi asks for one, so it knows the app is set up.
TeslaFi doesn't say how many digits its codes have or how often they change. Scanning the QR code is the safer choice, because it carries those settings to the app. A key typed by hand always gets 6 digits every 30 seconds.
Turn on the new-login email too
On the same Settings > Account page, TeslaFi offers an email alert for every new login to your account (TeslaFi). It's a useful second layer: if someone ever gets past your password and code, you'll hear about it.
Backup codes and recovery
TeslaFi's pages don't mention backup or recovery codes, and don't describe what happens if you lose the phone with your codes. If the setup screen offers codes, save them somewhere other than your phone. See 2FA backup codes.
If it doesn't, plan ahead. Novaz's keys stay on the iPhone unless you turn on iCloud backup or export a backup file, so without one, a lost or wiped phone means losing the codes. The only contact route TeslaFi lists is a request form in its help center (TeslaFi). TeslaFi doesn't say what proof it asks for or how long a reset takes. More in Lost the phone with your authenticator app?
If TeslaFi rejects your code
TeslaFi has no advice of its own on rejected codes. Start with the iPhone's clock: Settings > General > Date & Time > Set Automatically. Novaz warns you when the clock is 15 seconds or more off. Other causes are in Authenticator code not working?
Be careful with repeated tries. TeslaFi locks a username after 5 failed sign-in attempts, and it stays locked until you reset the password (TeslaFi). The help article doesn't say whether wrong codes count toward that limit. If you do get locked out, the password reset email shows your username at the top: sign in with that username, not your email address.
Changing phones
TeslaFi doesn't describe moving 2FA to a new phone. With a Novaz iCloud backup or backup file, you restore your accounts on the new iPhone and the TeslaFi codes keep working. Without one, keep the old phone until the new one is set up, and while you can still sign in, check Settings > Account for a way to set the authenticator up again on the new phone. See How to transfer your authenticator app to a new iPhone.
