Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Automatic Light Control System
When headlight switch is in AUTO position, automatic light control system automatically illuminates headlights and/or headlights, parking lights, taillights, license plate lights, side marker and instrument panel lights depending on light availability surrounding the vehicle, as detected by the automatic light control sensor. The automatic light control sensor is mounted on the left top side of the instrument panel. If headlights illuminate too early or too late, system sensitivity can be adjusted. See AUTOMATIC LIGHT CONTROL SENSOR under ADJUSTMENTS. The automatic light control system is monitored by the multiplex communication system. See MULTIPLEX CONTROL SYSTEMS - AVALON article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.