Alerts

The difference between radiator outlet coolant temperature and the expected temperature exceeds the threshold.

HVAC cabin cooling (air conditioning) and powertrain performance may be limited.

Direct Current Resistance (DCR) measurement of the LV battery's internal resistance reports a higher value than expected.

The LV battery internal resistance may degrade to a point requiring replacement. If this happens, then an alert will set indicating LV battery replacement is needed.

The VCFRONT detects an eFuse overcurrent event on the right headlight power feed.

The right headlight may be unavailable or may not function as expected.

The PCS is MIA when expected to be active on CAN, the LV battery is connected, the vehicle is not in service mode, and the vehicle is not being updated.

The PCS may be power cycled by the high voltage system.

An internal condition affecting the low beam (dipped beam) or high beam (main beam) LEDs, pixels, or the headlamp ECU's LED drivers is detected.

Right low beam (dipped beam) or high beam (main beam) may be partially or fully disabled.

The VCFRONT detects an eFuse overcurrent event on the left headlight power feed.

The left headlight may be unavailable or may not function as expected.

For both headlamps, the SSL100 pixel matrix detects non-functional pixels or has communication issues, or the voltage measured across the Lowbeam Prefield, DRL segments, or Turn LEDs (Model S only) is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the SSL100 EEPROM are out of range, or the fan current is out of range.

Certain light functions or the headlamp fan may be degraded or disabled for both headlamps.

Non-volatile memory misconfiguration or underlying flash/filesystem error.

Non-volatile memory records may be incorrect or missing.

An internal condition with the daytime running light (DRL) LEDs or the headlamp ECU's LED driver is detected.

Left daytime running light (DRL) may be partially or fully disabled

The vehicle is now located in a region with right-hand traffic, meaning vehicles are being driven on the right side of the road.

Headlight illumination will be optimized for regions with right-hand traffic.

An internal condition with the daytime running light (DRL) LEDs or the headlamp ECU's LED driver is detected.

Right daytime running light (DRL) may be partially or fully disabled

The vehicle is now located in a region with left-hand traffic, meaning vehicles are being driven on the left side of the road.

Headlight illumination will be optimized for regions with left-hand traffic.

The coolant flow index is abnormally low for 30 seconds.

Cabin climate control system air conditioning may be limited or unavailable. Powertrain performance may be limited.

The UI requests charge port door open while the customer has brake pedal pressed.

The vehicle will not allow the charge port door to open.

The observed power draw on the VCLEFT is outside of the defined operating threshold for too long.

Vehicle may be unable to drive. Vehicle functions that depend on the VCLEFT (such as left side windows, doors, seat functions, and/or powered liftgate) may be unavailable or their performance may be affected.

The headlamp ECU is MIA on LIN (not responding to Local Interconnect Network traffic) while powered on, or an internal condition with the turn signal LEDs or the headlamp ECU's LED driver is detected.

Right side turn signals will fast blink

The LVBMS module temperature has reached 60 deg C for 1 second.

The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.

The LVBMS MOSFET temperature has reached 100 deg C for 1 second.

The low voltage (LV) battery may show degraded performance or become unavailable due to high temperatures.

The pixel matrix manager detects non-functional pixels or has communication issues, or the voltage measured across the boost rail, Lowbeam, DRL, Side Marker, or Turn LEDs is out of range, or the LED drivers in the ECU have reported status flags, or certain values programmed in the matrix manager EEPROM are out of range.

Some headlight functions may be unavailable or may not function as expected. Headlight functionality may return after vehicle sleep.

The LVBMS detects that all LV battery cell voltages are not within 100mV of each other.

The LV battery may suddenly become unavailable and unable to support vehicle electrical systems. The LV battery may require replacement, and a separate alert should be present to indicate this condition if applicable.