Skip to content
Diagnostic tests 2026 firmware

Rain/Light Sensor

ModelSX/tasks/TEST_RLS_X_LIGHT-TEMPERATURE-VENDOR

What this task does

This tests verifies whether the rain/light sensor is functional by observing the auto headlamps and day/night display modes. Make sure the headlights and display modes are both set to AUTO.

Vehicle & firmware coverage

Open a version to see its description, requirements, and input definitions. Hardware configuration and live vehicle checks also determine availability.

Model S / X (legacy) Legacy infotainment · Firmware 2026.14.6
Vehicle coverage
Pre-2021 Model S, Pre-2021 Model X
Supported connection
Local connection
Vehicle state
Stationary · Parked
Gateway diagnostic level
No specific level listed

Task inputs (3)

light_high

light_high · Float

Firmware default: Not specified

light_low

light_low · Float

Firmware default: Not specified

timeout_sec

timeout_sec · Float

Firmware default: Not specified

Browse all tasks →
Diagnostic tests

Air humidity sensor

Check air humidity sensor

TEST_RLS_X_HUMIDITY-SNSR-NEW

Model S / X (legacy)