Understanding the Acura TL’s dashboard warning lights is critical for safety and vehicle longevity. These indicators alert drivers to urgent mechanical issues, system malfunctions, or active functions, enabling timely intervention to prevent accidents or costly damage.
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Red Warning Lights (Stop Immediately)
Brake System Alert
Indicates low brake fluid or hydraulic failure. Park immediately and contact an Acura service center.
Low Oil Pressure
Engine oil pressure is critically low. Stop the engine, check oil level, and seek professional help.
Engine Overheating
Coolant temperature exceeds safe limits. Turn off the engine immediately and allow it to cool.
Charging System Warning
Battery not charging. Turn off non-essential electronics and visit a dealer to prevent stalling.
SRS (Airbag System Error)
Fault detected in airbags or seatbelt tensioners. Immediate professional inspection required.
ABS Fault
Anti-lock braking system malfunction. Standard brakes still work, but avoid hard braking.
Security System Alert
Immobilizer issue or faulty key recognition. Restart the vehicle; if persistent, seek help.
Coolant Level Low
Insufficient coolant. Refill and inspect for leaks to prevent engine damage.
Power Steering Failure
Loss of power steering assistance. Restart the engine; if unresolved, avoid driving.
Transmission Overheat
Excessive transmission temperature. Pull over, let it cool, and check fluid levels.
Door Ajar
Door or trunk not fully closed. Secure before driving to prevent accidents.
Bonnet Open
Hood improperly latched. Stop and close securely to avoid hazards.
Tailgate Open
Trunk lid ajar. Secure immediately to maintain vehicle stability.
Seatbelt Reminder
Driver or passenger seatbelt unfastened. Secure before accelerating.
Yellow/Amber Warning Lights (Action Required Soon)
Low Tire Pressure
Tire(s) under-inflated. Adjust pressure to recommended PSI and inspect for punctures.
VSA/ESP Fault
Vehicle Stability Assist malfunction. Drive cautiously and avoid sharp turns.
Fuel Cap Loose
Loose or missing fuel cap. Tighten or replace to prevent fuel evaporation.
Service Reminder
Routine maintenance due. Reset after oil change or inspection.
Low Washer Fluid
Windshield washer fluid is low. Refill the reservoir for clear visibility.
Adaptive Headlight Fault
Automatic beam adjustment issue. Use manual control until repaired.
Blind Spot Information (BSI) Off
Sensor blocked or system error. Clean sensors or reactivate manually.
Lane Keeping Aid Off
System disabled due to undetected lane markers. Enable manually if safe.
DPF Regen Needed
Diesel particulate filter partially blocked. Initiate regeneration or drive at highway speeds.
Hill Start Assist Warning
System malfunction. Avoid steep slopes and schedule inspection.
Bulb Failure
Exterior light (e.g., brake, turn signal) malfunction. Replace promptly.
Green Warning Lights (Information Only)
Cruise Control Active
Speed set and maintained. Deactivate via brake pedal or steering controls.
High Beams On
High beam headlights active. Switch to low beams in traffic.
Front Fog Lights
Enabled for low-visibility conditions. Turn off when not needed.
Rear Fog Light Indicator
Confirms rear fog lights are on. Disable when visibility improves.
Parking Lights On
Parking lights illuminated. Turn off to conserve battery.
Eco Mode
Fuel-efficient driving activated. Acceleration may feel less responsive.
Rain Sensor Active
Automatic wipers enabled. Adjust sensitivity via steering controls.
Turn Signal Active
Indicator blinking for turns or lane changes. Check for rapid blinking (bulb issue).
Auto Hold Active
Vehicle remains stationary on slopes without brake pedal input.
Start/Stop Active
Engine stops at idle to save fuel. Restarts when accelerator is pressed.
Gear Shift Indicator
Suggests optimal gear for fuel efficiency. Follow prompts if desired.
Daytime Running Lights
Lights automatically on for daytime visibility. No action needed.
Information Message
Generic alert paired with detailed text on the driver display. Check for specifics.
