Code DGLAB_i012 was reported by the “Diagnostic log entries” controller in the car. The letter “i” in the middle places it among entries of the information type.
Internal diagnostic and informational events the car records for service. These are not faults — more like notes that some condition returned to normal.
A purely informational record of a state change. Usually it means something returned to normal.
This is how the fault is named inside the car's firmware. For codes without a description it is the most precise clue there is — the name itself says what the event is about.
The text below comes from Tesla's technical documentation. We leave it in the original English so that translation cannot shift its meaning.
Internal register in the Gateway reports that the ECU was reset in a way that was unexpected by firmware
Gateway may be resetting unexpectedly
Charge connector update in progress
Offboard charger update in progress
Wait for the charger update to complete
BMP was power cycled due to failure to sleep after 60 seconds.
SD Card Initialization Failure
Gateway file system driver fails to initialize SD card
Gateway reboot first. If the alert is persistent, then replace SD card and/or car computer
CAN logs and firmware updates will not function
The 12V battery is not able to sustain a firmware update
VCFRONT_good12VforUpdate went to 0 during firmware update
Alert will clear after gateway reboot or successful update
Firmware update aborts without installing
OPCR is running different version than the expected
OPCR may not function properly
DIR is running different version than the expected
ESP is running different version than the expected
Copy it exactly, letter and number included. Photographing the screen is safest — codes often differ by a single digit, and mixing them up leads somewhere else entirely.
Some codes clear after a screen restart or after the car sits locked for a few hours. If the code does not come back, it was usually a one-off glitch.
A one-off entry and a code that appears after every drive are two different things. It helps a service centre enormously if you know exactly when it shows up.
With airbags, brakes, steering and high voltage there is no point waiting it out. With the other groups you can watch and see whether the code returns at all.
Error codes are only part of the picture. For cars on TesList you also see battery health pulled straight from the vehicle, plus a price calculator that works out from current listings what a given car is actually worth today.