ZBT Auto Services
Engine oil pressure
UrgentOil-can warning while running: stop safely and switch off. Do not keep driving with low oil pressure.
Toyota · Manufacturer reference ↗ZBT AUTO SERVICES · DRIVER’S GUIDE
What is your dashboard telling you?
A visual guide to common vehicle warning lights and indicator symbols, from engine and brake warnings to hybrid, EV, lighting, and driver-assistance displays.
Read the message, not just the color.
Symbols and actions vary by make, model, and year. These are original manufacturer owner-guide symbols, with the source identified on each card; your owner’s manual and on-screen instructions take priority. Pull over safely before looking up a warning. Smoke, severe overheating, loss of braking, or a “stop safely” message calls for stopping and arranging assistance.
Red: urgent warning or reminderAmber: attention or system statusGreen / blue: often an active feature
36 symbols shown · Original manufacturer artwork; tap a symbol to view it at full size.
Engine overheating
UrgentA red thermometer warns of excessive coolant temperature. Stop safely; never open a hot coolant cap.
Toyota · Manufacturer reference ↗
Brake system
UrgentWith the parking brake released, a red brake warning needs immediate attention. Stop safely if braking changes.
Ford · Manufacturer reference ↗
12V charging system
UrgentThe charging system may not be supplying power. Find a safe stopping place and arrange assistance.
Toyota · Manufacturer reference ↗
Check engine
Check soonA steady lamp needs diagnosis. If flashing, avoid acceleration; stop safely if shaking or running poorly.
Ford · Manufacturer reference ↗
ABS
Check soonAnti-lock braking may be unavailable. Avoid hard braking and arrange inspection. Red brake warning too? Stop safely.
Toyota · Manufacturer reference ↗
Tire pressure / TPMS
Check soonCheck tires and cold pressures against the door label. Flashing then steady can indicate a monitoring-system fault.
Toyota · Manufacturer reference ↗
Airbag / SRS
Check soonA restraint-system fault may affect protection in a collision. Have it checked promptly.
Toyota · Manufacturer reference ↗
Seat belt
Action neededAn occupied seat belt may be unfastened. Secure passengers before moving.
Toyota · Manufacturer reference ↗
Stability / traction control
Check soonFlashing often means active intervention. A steady lamp may mean a fault or disabled system; read the message.
Toyota · Manufacturer reference ↗
Electric parking-brake fault
Check soonThis Lincoln indicator warns of an electric parking-brake condition requiring service. Read the accompanying message and arrange inspection.
Lincoln · Manufacturer reference ↗
Power steering
Check soonSteering assistance may be reduced. If steering becomes difficult, stop safely and arrange help.
Toyota · Manufacturer reference ↗
Engine / powertrain fault
Check soonThis Ford gear-and-exclamation symbol indicates an engine-system or powertrain fault. Read the message and arrange diagnosis; stop safely if drivability changes.
Ford · Manufacturer reference ↗
Diesel particulate filter
Check soonA soot-filter warning may call for regeneration or diagnosis. Follow the exact owner’s manual procedure.
Ford · Manufacturer reference ↗
Diesel glow plugs
StatusPreheating may be active before starting. Persistent or flashing illumination can indicate a fault.
Ford · Manufacturer reference ↗
DEF / AdBlue
Action neededCheck the display for fluid level or system faults. A countdown may warn that restarting will be restricted.
Ford · Manufacturer reference ↗
Low fuel
Action neededRefuel soon. The reserve amount varies by model; avoid running the tank empty.
Toyota · Manufacturer reference ↗
Washer fluid
Action neededRefill the windshield-washer reservoir with suitable fluid. Keep visibility clear.
Ford · Manufacturer reference ↗
Door / hood / trunk open
Action neededStop in a safe place and securely close the indicated opening.
Tesla Model 3 · Manufacturer reference ↗
Security / immobilizer
StatusThis Toyota security indicator identifies the theft-deterrent system. Normal flashing while parked can mean the system is active; check your manual for unexpected behavior.
Toyota · Manufacturer reference ↗
Master warning
Action neededRead the accompanying message. The triangle alone does not identify the fault or its urgency.
Toyota · Manufacturer reference ↗
Service reminder
Check soonA maintenance interval may be due. Review service history and the vehicle’s scheduled requirements.
Mazda · Manufacturer reference ↗
Low-beam headlights
StatusDipped headlights are switched on. This is normally an operating indicator.
Tesla Model 3 · Manufacturer reference ↗
High-beam headlights
StatusHigh beams are on. Dip them for approaching traffic and when following another vehicle.
Tesla Model 3 · Manufacturer reference ↗
Front fog lights
StatusFront fog lamps are selected. The rear-fog symbol points the other way; use the appropriate lamps for visibility and local driving conditions.
Ford · Manufacturer reference ↗
Turn signals / hazards
StatusAn arrow flashes with the turn signal. Both arrows may flash with hazard lights.
Toyota · Manufacturer reference ↗
Cruise control
StatusCruise may be available or active, depending on color. Stay ready to brake and steer.
Ford · Manufacturer reference ↗
Lane assistance
StatusLane support status varies by color and display message. Keep control of the vehicle at all times.
Ford · Manufacturer reference ↗
Collision warning / AEB
Action neededRespond to traffic immediately. A steady fault indicator can mean collision assistance is unavailable.
Ford · Manufacturer reference ↗
Ready to drive
StatusThis Lincoln hybrid indicator confirms the vehicle is ready to drive. The vehicle can move even when the engine is silent.
Lincoln · Manufacturer reference ↗
Charging cable connected
StatusThis red Kia Niro plug-in-hybrid indicator means the charging cable is connected. Disconnect using the vehicle instructions before attempting to drive.
Kia Niro PHEV (2026) · Manufacturer reference ↗
Reduced power
Action neededPower is limited. Battery condition, temperature, or a fault can be involved; follow the displayed instructions.
Tesla Model 3 · Manufacturer reference ↗
Cold high-voltage battery
StatusThis Tesla blue snowflake indicates battery energy or charging may be limited by cold conditions. It disappears when the battery is warm enough.
Tesla Model 3 · Manufacturer reference ↗
Limited regenerative braking
Action neededDeceleration may differ from normal. Be ready to use the brake pedal and follow vehicle guidance.
Tesla Model 3 · Manufacturer reference ↗
Rear-window defroster control
StatusThis Ford climate-control symbol identifies the rear-window heater button. It clears light ice and fog; this is a control symbol, not a fault warning.
Ford · Manufacturer reference ↗
4H four-wheel-drive mode
StatusThis Ford 4H indicator shows four-wheel-drive high is selected. Follow the vehicle manual for suitable road conditions and switching drive modes.
Ford · Manufacturer reference ↗A warning light is a clue, not a diagnosis.
Note when it appeared, whether it flashes, and any unusual sounds or changes in driving. ZBT can discuss diagnostics for supported vehicles at our Fremont shop. Our current Tesla, Rivian, and Lucid services focus on tires, body, and glass; contact the manufacturer or an appropriate specialist for other EV warnings.
Why do lights appear briefly at startup?
Many vehicles illuminate lamps for a startup check. A light that remains on, flashes unexpectedly, or accompanies a message needs attention according to the manual.
Does clearing a code fix the problem?
No. Clearing a code does not repair its cause and may reset emissions readiness monitors. Record the warning and arrange a diagnosis.
Manufacturer references: Toyota warning-light guide · Ford indicator guide · Tesla car-status guide. Owner-guide artwork may be monochrome. Actual display colors, messages, and meanings depend on the specific vehicle. Always consult the manual for your exact vehicle.