2019 FORD F-150 Warning Lights and Indicators User Guide
This Guide discusses the 2019 FORD F-150 warning lights and indicators, which notify drivers to engine health, tire pressure, battery levels, and more for safe and efficient driving. Let’s move through some details.
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Video: 2019 FORD F-150 Warning Lights
WARNING LAMPS AND INDICATORS
The following warning lamps and indicators alert you to a vehicle condition that may become serious. Some lamps illuminate when you start your vehicle to make sure they work. If any lamps remain on after starting your vehicle, refer to the respective system warning lamp for further information.
Note: Some warning indicators appear in the information display and operate the same as a warning lamp but do not illuminate when you start your vehicle.
Adaptive Cruise Control Indicator
It illuminates when you switch the system on.
It illuminates white when the system is in standby mode. It illuminates green when you set the adaptive cruise speed.
Anti-Lock Braking System 
If it illuminates when you are driving, this indicates a malfunction. Your vehicle continues to have normal braking without the anti-lock brake system function. Have your vehicle checked as soon as possible.
Automatic Headlamp High Beam Indicator 
It illuminates when the system automatically turns the headlamp high beam on.
Automatic Regen Control Off
It illuminates if you manually switch off the automatic regen control.
Auto-Start-Stop Indicator 
It illuminates when the engine has automatically stopped. It flashes to inform you when the engine needs to restart. The indicator is shown with a strikethrough if the system is not available.
Battery
It illuminates when you switch the ignition on.
If it illuminates when the engine is running this indicates a malfunction. Have your vehicle checked as soon as possible.
Blind Spot Monitor 
It illuminates when you switch the system off.
Brake System Warning Lamp
WARNING: Driving your vehicle with the warning lamp on is dangerous. A significant decrease in braking performance may occur. It may take you longer to stop your vehicle. Have your vehicle checked as soon as possible. Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury.
Note: Indicators vary depending on region.
This lamp is a dual function lamp and will illuminate when:
- You apply the parking brake with the ignition on.
- Your vehicle has a brake fault or low brake fluid level, regardless of parking brake position.
If the lamp illuminates while you are moving, you may have the parking brake applied. Be sure that the parking brake is off. Have your vehicle checked as soon as possible if the lamp continues to illuminate.
Check 4X4
Illuminates with the message Check 4×4 when a four-wheel drive fault is present.
Cruise Control Indicator 
It illuminates when you switch the system on.
Diesel Exhaust Fluid 
With the key in the on position, illuminates when the DEF is contaminated, low or someone has tampered with the DEF system.
Direction Indicator
Flashes when the left or right direction indicator or the hazard warning flasher turns on. An increase in the rate of flashing warns of a failed indicator bulb.
Door Ajar Warning Lamp
It illuminates when you switch the ignition on and remains on if any door or the hood is open.
Illuminates when using the electronic locking differential.
Electric Park Brake 
It illuminates or flashes when the electric parking brake has a malfunction.
Engine Coolant Temperature Warning Lamp
If it illuminates when your vehicle is moving, this indicates that the engine is overheating. Stop your vehicle as soon as it is safe to do so and switch the engine off. Have your vehicle checked as soon as possible.
Fasten Seatbelt Warning Lamp
It illuminates and a chime sounds until you fasten the seatbelts.
Four-Wheel Drive Indicators
Note: Some indicators will appear different depending on vehicle options.
Illuminates momentarily when you select two-wheel drive high.
Illuminates when the automatic four-wheel drive system is engaged.
Illuminates when four-wheel drive low is engaged.
Illuminates when four-wheel drive high is engaged.
Front Airbag 
If it fails to illuminate when you start your vehicle, continues to flash or remains on, it indicates a malfunction. Have the system checked.
Front Fog Lamp Indicator 
It illuminates when you switch the front fog lamps on.
Headlamp High Beam Indicator 
It illuminates when you switch the headlamp high beam on. It flashes when you use the headlamp flasher.
Hill Descent 
Illuminates when hill descent is switched on.
Low Fuel Level Warning Lamp 
If it illuminates when you are driving, refuel as soon as possible.
Low Tire Pressure Warning Lamp 
It illuminates when your tire pressure is low. If the lamp remains on with the engine running or when driving, check your tire pressure as soon as possible.
It also illuminates momentarily when you switch the ignition on to confirm the lamp is functional. If it does not illuminate when you switch the ignition on, or begins to flash at any time, have the system checked by your authorized dealer.
Low Washer Fluid Level Warning Lamp
It illuminates when the washer fluid is low.
It illuminates when you switch the ignition on.
If it illuminates when the engine is running this indicates a malfunction. Stop your vehicle as soon as it is safe to do so and switch the engine off. Check the engine oil level. If the oil level is sufficient, this indicates a system malfunction. Have your vehicle checked as soon as possible.
Parking Lamps 
It illuminates when you switch the parking lamps on.
Powertrain Malfunction/Reduced Power/Electronic Throttle Control 
Illuminates when the system has detected a powertrain or a four-wheel drive fault. Contact an authorized dealer as soon as possible.
If it illuminates when the engine is running this indicates a malfunction. The On Board Diagnostics system has detected a malfunction of the vehicle emission control system.
If it flashes, engine misfire may be occurring. Increased exhaust gas temperatures could damage the catalytic converter or other vehicle components. Drive in a moderate fashion (avoid heavy acceleration and deceleration) and have your vehicle immediately serviced.
It illuminates when you switch the ignition on prior to engine start to check the bulb and to indicate whether your vehicle is ready for Inspection and Maintenance (I/M) testing.
Normally, it illuminates until the engine is cranked and automatically turns off if no malfunctions are present. However, if after 15 seconds it flashes eight times, this indicates that your vehicle is not ready for Inspection and Maintenance (I/M) testing.
Sport Mode
Illuminates when you switch the sport mode on.
Stability Control and Traction Control Indicator
Flashes during operation.
If it does not illuminate when you switch the ignition on, or remains on when the engine is running, this indicates a malfunction. Have your vehicle checked as soon as possible.
It illuminates when you switch the system off.
Tow Haul Indicator
It illuminates when you switch the system on.
Wait To Start
Illuminates when you switch the ignition on as part of the
pre-start system. Wait until the wait to start indicator turns off before attempting to start vehicle.
WARNING: Do not drain the water-in-fuel separator while the engine is running. Failure to follow this warning may result in fire, serious injury, death or property damage.
During refueling, it is possible for you to pump water-contaminated diesel fuel into your fuel tank. Your vehicle’s fuel system is equipped with a fuel filter and water separator to remove water from the fuel. The water in fuel indicator lights when the fuel and water separator has a significant quantity of water in it and requires immediate draining.
If the water in fuel indicator illuminates when the engine is running, stop your vehicle as soon as safely possible, shut off the engine, then drain the fuel and water separator. See Fuel Quality (page 188). Allowing water to stay in the fuel system, after the water in fuel indicator illuminates, could result in extensive damage or failure of the fuel injection system.
Note: Do not drain the fuel and water separator while the engine is running. Air will enter into the fuel system causing the engine not to operate properly.
AUDIBLE WARNINGS AND INDICATORS
Airbag Secondary Warning
Sounds if there is a malfunction with the safety belt warning lamp and there is a fault in the supplemental restraints system.
Beltminder Warning
Sounds when a seatbelt is unfastened in an occupied seat and your vehicle is moving.
Door Ajar Warning
Sounds when any door is not completely closed and your vehicle speed exceeds 3 mph (5 km/h).
Headlamps On Warning
Sounds when you remove the key from the ignition and open the driver’s door and you have left the headlamps or parking lamps on.
Key in Ignition Warning
Sounds when you open the driver’s door and you have left the key in the ignition.
Keyless Warning Alert
Sounds the horn twice when you exit your vehicle with the intelligent access key, after the last door is closed and your keyless vehicle is in RUN, indicating your vehicle is still on.
Rear Park Aid Warning
A detection warning sounds when obstacles are within a certain range of the bumper area. The system turns on automatically whenever you switch the ignition on.
Parking Brake On Warning
Sounds when you have left the parking brake on and drive your vehicle. If the warning chime remains on after you have released the parking brake, have the system checked by your authorized dealer immediately.
Service AdvanceTrac Warning
Sounds when there is a malfunction with the Electronic Stability Control (ESC) or Rollover Stability Control (RSC) system.
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