Understanding your Ford C-Max’s dashboard warning lights is essential for preventing mechanical failures and ensuring road safety. These alerts provide real-time diagnostics, enabling prompt action to avoid costly repairs or hazardous driving conditions. Below is a complete guide to major warning lights, categorized by urgency.
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Red Warning Lights (Stop Immediately)
High Voltage Electric System Failure
Electrical component fault in hybrid models causing shutdown or limited operation. Stop immediately and contact a dealer.
Brake System Alert
Low brake fluid or hydraulic failure. Park safely and avoid driving until inspected.
Battery Charge Fault
Charging system malfunction. Stop driving to prevent stalling and check electrical connections.
Airbag System Failure
Airbag or seatbelt tensioner malfunction. Visit a service center immediately.
Engine Oil Pressure
Low oil level or pressure. Check oil level and top up if low; avoid driving if the light persists.
Coolant Temperature Warning
Engine overheating or critically low coolant. Turn off the engine and check coolant levels once cooled.
Power Steering Loss
Steering assist malfunction. Stop driving; towing may be required.
Transmission Overheat
Gearbox overheating. Pull over, let the system cool, and check for leaks.
Door Ajar Alert
Door or trunk open while driving. Secure all closures immediately.
Master Warning Light
General alert for issues like open doors or engine trouble. Check for accompanying messages.
Engine Misfire (Flashing)
Catalytic converter risk due to misfiring. Reduce speed and seek urgent repair.
Yellow/Amber Warning Lights (Action Required Soon)
Loose Gas Cap
Cap improperly sealed. Tighten or replace to prevent fuel evaporation.
Low Tire Pressure
Moderate pressure loss. Inflate tires to recommended PSI soon.
Brake Pad Wear
Pads worn beyond safe limits. Replace soon to maintain braking efficiency.
Diesel Particulate Filter (DPF)
Soot buildup in exhaust. Drive at highway speed to regenerate.
AdBlue Low
Diesel exhaust fluid below 25%. Refill within 500 km.
Glow Plug Issue
Diesel ignition assist fault. Cold starts may be difficult; schedule service.
Washer Fluid Low
Windshield washer reservoir empty. Refill to maintain visibility.
ESP/ESC Malfunction
Traction control disabled. Drive cautiously on slippery surfaces.
Key Not Detected
Key fob battery low or signal interference. Replace battery.
Suspension Control Fault
Suspension system failure. Avoid rough terrain and repair soon.
Service Due Reminder
Scheduled maintenance overdue. Book an appointment soon.
Lane Departure Warning
Sensors obstructed. Clean windshield or check for damage.
Headlight Failure
Bulb or circuit issue. Replace bulbs or inspect wiring promptly.
Powertrain Fault
Engine, transmission, or drivetrain issue. Diagnostic check required.
Green Warning Lights (Information Only)
Auto Hold
Vehicle held stationary on inclines without pedal input.
Eco Mode
Fuel-efficient driving mode activated to maximize range.
Cruise Control Active
Speed set and maintained automatically.
Turn Signal Active
Indicator blinking for lane changes or turns.
Headlights On
Low beams or daytime running lights active.
High Beam Active
Long-range headlights illuminated for dark roads.
Rear Fog Lights
Enhanced visibility in heavy fog conditions.
All-Wheel Drive
Power distributed to all wheels for improved traction.
Electric Parking Brake
Parking brake engaged. Disengage to drive.
Hybrid Ready
Hybrid system primed for electric mod.
Auto Start-Stop
Engine temporarily off at stops to save fuel.
Seatbelt Reminder (Stationary)
Passenger unbuckled while parked. Fasten before driving5
Trunk Open
Liftgate or trunk ajar. Secure before driving.
Drive Mode Selected
Comfort, Sport, or Eco mode active.
Adaptive Light System
Headlights adjust to steering input for better visibility.
When looking at Ford, make sure to check out our guides on models like the Ford Tourneo Connect, Ford Ecosport, Ford Explorer, and Ford Bronco. Understanding dashboard warning lights is essential. Our expert reviews break down what each light means, highlighting common alerts for these models and what they could signal about underlying issues, so you’re never left guessing behind the wheel.
Address red alerts immediately to prevent safety risks. Schedule service for amber warnings to avoid escalation. Use green indicators to optimize driving systems. Consult your Ford C-Max manual for model-specific details.
