Understanding dashboard warning lights in your Vauxhall Astra is essential for maintaining vehicle safety, as they alert you to potential issues that could lead to accidents or breakdowns. Ignoring them might result in costly repairs or unsafe driving conditions, so regular checks and prompt action can prevent minor problems from escalating. This guide lists major lights specific to the Astra, categorized by color for quick reference.
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Red Warning Lights (Stop Immediately)
Engine Oil Pressure
Low oil pressure could cause engine damage or overheating. Stop the car safely, check oil level, and add if needed; do not drive until fixed.
Brake System Alert
Indicates low brake fluid or system failure. Pull over immediately and seek professional help to avoid brake loss.
Engine Coolant Temperature
Engine is overheating, possibly due to low coolant. Stop and let it cool; check coolant level and visit a mechanic.
Battery Charge
Battery isn’t charging properly, often from alternator issues. Stop driving and get it checked to prevent stranding.
Airbag System
Fault in airbags or seatbelt tensioners; they may not deploy in a crash. Have the system inspected right away.
Power Steering Failure
Steering assistance is lost, making handling difficult. Stop safely and contact a service center.
Seatbelt Reminder
Driver or passenger seatbelt is unbuckled. Fasten belts immediately for safety.
Door Ajar
A door, bonnet, or boot is not fully closed. Stop and secure it to avoid hazards.
Transmission Electronics
Issue in transmission that could lead to failure. Stop and have it diagnosed.
Engine/Transmission Warning
Major engine or gearbox problem detected. Cease driving and consult a mechanic.
Stop Engine
Critical fault requiring immediate shutdown. Pull over safely and turn off the engine.
Immobiliser Fault
Security system error preventing start. Stop and try restarting; if persistent, visit a service center.
Electronic Parking Brake
Parking brake is applied or faulty. Release if safe, or get it checked to ensure proper function.
Yellow/Amber Warning Lights (Action Required Soon)
ABS Warning
Anti-lock braking system malfunction; brakes may lock up. Drive carefully and get it repaired.
Tyre Pressure Monitoring
Tyre pressure is low or uneven. Check and inflate tyres promptly to prevent blowouts.
ESP (Electronic Stability Program)
Stability control is off or faulty; vehicle may skid. Reactivate if possible and service soon.
Glow Plug (Diesel)
Pre-heating system for diesel engine is active or faulty. Wait for it to extinguish; if it stays, check plugs.
Brake Pad Wear
Brake pads are worn thin. Replace them soon to maintain stopping power.
DPF (Diesel Particulate Filter)
Filter is clogged with soot. Drive at higher speeds to regenerate, or visit a mechanic.
Low Fuel
Fuel level is critically low. Refuel immediately to avoid running out.
Low Washer Fluid
Washer fluid is low. Refill to ensure clear visibility.
Speed Limiter Active
Speed limiter is on, restricting top speed. Adjust or turn off as needed.
Descent Control System Fault
Hill descent control isn’t working. Avoid steep slopes and get it fixed.
Lane Departure Warning
System detects lane drifting. Stay alert and service if it persists.
Service Vehicle Soon
General maintenance needed, like oil change. Schedule a service appointment.
Green Information Lights (Information Only)
Cruise Control Active
Cruise control is engaged, maintaining set speed. No action needed unless adjusting.
Front Fog Lights On
Fog lights are activated for better visibility. Turn off when not required.
Sidelights On
Low-beam or parking lights are in use. Ensure they’re appropriate for conditions.
High Beam Assist
Automatic high beams are active. System adjusts lights for oncoming traffic.
Trailer Indicator
Trailer is connected and lights are functioning. Check connections if towing.
Fuel Economy Mode
Eco mode is on, optimizing fuel use. Drive normally.
Daytime Running Lights
Automatic daytime lights are illuminated. Enhances visibility to others.
Upshift Recommended
Suggests shifting to a higher gear for efficiency. Follow for better fuel economy.
Descent Control System Ready
Hill descent control is prepared for use. Activate on steep declines.
Vehicle Detected Ahead
Adaptive cruise detects a car in front. System adjusts speed accordingly.
Automatic Restart
Stop-start system is ready to restart engine. Saves fuel at stops.
Headlights On
Main headlights are active. Use in low light for safety.
