Lexus RX 350 Dashboard Symbols and Meanings: Warning Lights Every Driver Should Know

Lexus RX 350 dashboard symbols tell you whether a vehicle system is operating normally, needs attention, or requires you to stop driving. As a general rule, red warning lights indicate more urgent problems, yellow or amber lights signal conditions that should be checked, and green, blue, or white indicators usually show that a feature is operating normally.

The exact appearance of some symbols varies between Lexus RX 350 model years and equipment packages, especially on newer models with digital instrument clusters and Lexus Safety System+ features. The following guide covers the warning lights and indicators RX 350 drivers are most likely to encounter.

Lexus RX 350 Dashboard Warning Light Colors

Color	What It Usually Means
Red	Serious warning or immediate attention required
Yellow/Amber	Malfunction, caution, or service needed
Green	Feature is operating normally
Blue	Feature such as high beams is active
White/Gray	Information, standby mode, or system status

Many dashboard lights briefly illuminate when you start the RX 350. This is normally part of a system self-check.

A light becomes more important when it stays illuminated after startup, begins flashing, or suddenly appears while you are driving.

1. Brake System Warning Light

Looks like: An exclamation mark inside a circle, sometimes accompanied by BRAKE.

The red brake warning can appear when:

The parking brake is engaged
Brake fluid is low
A braking-system malfunction is detected

If the light disappears after releasing the parking brake, the system may be operating normally.

If it stays illuminated with the parking brake released, the braking system should be checked.

What to do: Stop somewhere safe if braking feels unusual. Do not continue driving if the brake pedal feels weak, unusually soft, or ineffective.

2. ABS Warning Light

Looks like: ABS inside a circle.

ABS stands for Anti-lock Braking System.

The system helps prevent the wheels from locking during hard braking.

If the ABS light remains on, the regular braking system may still work, but anti-lock braking and related stability functions may be unavailable.

What to do: Drive cautiously and arrange an inspection.

If the ABS warning appears together with the red brake warning, treat the situation more seriously.

3. Engine Oil Pressure Warning

Looks like: An oil can with a drop coming from it.

This red warning means engine oil pressure may be too low.

It is one of the most important Lexus RX 350 dashboard lights to recognize.

Low oil pressure can prevent critical engine components from receiving proper lubrication and can cause severe engine damage.

What to do:

Pull over safely.
Turn off the engine.
Check the engine oil level when appropriate.
Add the correct oil if the level is low.
Do not continue driving if the warning stays on.

The oil-pressure warning is different from an oil-maintenance reminder.

4. Charging System Warning

Looks like: A battery with plus and minus symbols.

This light indicates a problem with the vehicle’s electrical charging system.

Possible causes can involve:

The alternator
Battery connections
Charging-system wiring
Drive-belt components

The RX 350 may continue running for a short time on stored battery power, but it can eventually shut down.

What to do: Reduce unnecessary electrical use and move somewhere safe. Have the charging system checked promptly.

5. Check Engine Light

Looks like: A small engine-shaped symbol.

The check engine light means the RX 350’s computer has detected a problem involving the engine, emissions system, fuel system, ignition system, or related electronic controls.

A steady check engine light can indicate anything from a minor emissions-related issue to a problem that needs prompt diagnosis.

What Does a Flashing Check Engine Light Mean?

A flashing check engine light is more urgent.

It may indicate a serious engine misfire capable of damaging the catalytic converter.

What to do: Reduce speed and engine load. If the engine is shaking, losing power, or running very poorly, stop driving when safe.

6. Engine Coolant Temperature Warning

Looks like: A thermometer above wavy lines.

A red temperature warning means the engine may be overheating.

Continuing to drive an overheated RX 350 can cause major engine damage.

What to do: Pull over safely and shut off the engine.

Allow the vehicle to cool before checking coolant-related components.

Never remove a hot cooling-system cap because pressurized coolant can cause serious burns.

7. Tire Pressure Warning Light

Looks like: A tire-shaped horseshoe with an exclamation mark.

This is the Tire Pressure Monitoring System, or TPMS, warning.

A solid light usually means one or more tires are significantly underinflated.

Low tire pressure can affect:

Handling
Braking
Tire wear
Fuel economy
Tire temperature

What to do: Check all four tires and inflate them to the pressure listed on the vehicle’s tire-information label.

What Does a Flashing Tire Pressure Light Mean?

If the TPMS light flashes before remaining illuminated, there may be a problem with the monitoring system itself.

A tire-pressure sensor could be damaged, missing, or unable to communicate properly.

8. SRS Airbag Warning Light

Looks like: A seated person with a large circle in front of them.

The circle represents an airbag.

If the warning stays on after startup, there may be a problem with the Supplemental Restraint System.

This may involve:

Airbags
Seat-belt pretensioners
Occupant-detection components
Crash sensors

What to do: Have the system inspected. A fault could affect airbag operation during a collision.

9. Seat Belt Reminder

Looks like: A seated person with a diagonal seat belt.

This means the driver or another monitored passenger is not properly buckled.

The warning may flash or sound a chime.

What to do: Make sure all occupants are correctly wearing their seat belts.

10. Electric Power Steering Warning

Looks like: A steering wheel, often with an exclamation mark.

The Lexus RX 350 uses electric power steering assistance.

If the steering warning appears, power assistance may be reduced or unavailable.

The steering wheel may feel unusually heavy, especially at lower speeds.

What to do: Slow down and stop somewhere safe if steering becomes difficult. Have the system inspected.

11. Slip Indicator

Looks like: A car with wavy skid marks beneath it.

This symbol is associated with traction control and Vehicle Stability Control.

If It Flashes

A flashing slip indicator usually means the system is actively helping control wheel spin or vehicle stability.

This can happen on:

Wet roads
Snow
Ice
Gravel
Loose surfaces

A flashing symbol during slippery conditions is usually normal.

If It Stays On

A continuously illuminated slip warning may indicate a malfunction.

Have the stability and traction-control systems checked if the light remains on unexpectedly.

12. VSC OFF or Traction Control Off Indicator

Looks like: The skidding-car symbol with OFF.

This means Vehicle Stability Control or traction assistance has been manually reduced or disabled.

For ordinary driving, these systems should generally remain active.

They may occasionally be switched off temporarily when trying to free the vehicle from snow, sand, or mud.

13. Master Warning Light

Looks like: A triangle containing an exclamation mark.

The Master Warning Light means the RX 350 has detected something that requires attention.

The triangle itself does not tell you the exact problem.

Look at the accompanying message on the instrument display.

It may relate to:

Driver-assistance systems
Doors or liftgate
Tire pressure
Vehicle sensors
Engine systems
Safety features

What to do: Read the dashboard message before assuming what caused the warning.

14. Low Fuel Warning

Looks like: A gas pump.

This means the fuel level is low.

What to do: Refuel soon.

Do not depend on the estimated driving range until the last mile, especially in heavy traffic or remote areas.

15. Low Washer Fluid Warning

Looks like: A windshield with water spraying upward.

This indicates that windshield-washer fluid is running low.

It is not a mechanical emergency, but good visibility is essential for safe driving.

Refill the reservoir with suitable washer fluid.

16. Door, Hood, or Liftgate Open Warning

Looks like: A vehicle viewed from above with an opening highlighted.

This means a door, hood, or rear liftgate is not completely closed.

Newer RX 350 digital clusters may show exactly which opening is affected.

Make sure everything is securely latched before continuing.

17. Parking Brake Indicator

Depending on the model year, the RX 350 may use an electronic parking brake.

A red parking-brake indicator normally means the brake is applied.

If a separate yellow or amber parking-brake warning appears, there may be a problem with the electronic parking-brake system.

18. Brake Hold Indicator

Brake Hold can keep the RX 350 stationary after you stop without requiring continuous pressure on the brake pedal.

Depending on the display:

A standby indicator means Brake Hold is turned on
An active indicator means the system is currently holding the vehicle

This is normally a status indicator rather than a warning.

19. PCS Warning Light

PCS stands for Pre-Collision System.

The system uses sensors to help detect possible frontal collisions.

A PCS warning can appear when:

The system has been disabled
A sensor is blocked
The camera cannot see clearly
A malfunction has been detected

Snow, dirt, heavy rain, fog, or road spray can temporarily interfere with safety sensors.

Clean sensor areas if appropriate and check any accompanying dashboard message.

20. Lane Departure Alert Indicator

Looks like: A vehicle between lane lines.

Lane Departure Alert monitors lane markings and may warn you when the vehicle begins drifting unintentionally.

Depending on the model year, colors or lane graphics may show:

Lane markings detected
System ready
Steering assistance active
System unavailable

The driver must continue steering and paying attention at all times.

21. Lane Tracing Assist Indicator

Newer RX 350 models may include Lane Tracing Assist.

The system can provide steering support to help keep the vehicle centered in its lane when conditions allow.

The dashboard symbol may change depending on whether:

The system is ready
Lane markings are detected
Assistance is active
The system is temporarily unavailable

This is a driver-assistance feature, not autonomous driving.

22. Dynamic Radar Cruise Control Indicator

Dynamic Radar Cruise Control can maintain a selected speed while adjusting distance from a vehicle ahead.

The instrument cluster may show:

Selected cruising speed
Following-distance setting
A vehicle-ahead symbol
Radar cruise status

Most of these indicators are informational.

A malfunction or unavailable message should be checked separately.

23. Blind Spot Monitor Indicator

The Blind Spot Monitor helps detect vehicles in areas beside and behind the RX 350.

Warning indicators usually appear in the side mirrors.

If a vehicle is detected, the indicator illuminates.

If you activate your turn signal toward the occupied side, the warning may flash.

A BSM OFF or malfunction message means the system may not currently be available.

24. Rear Cross Traffic Alert

Rear Cross Traffic Alert can warn you about vehicles approaching from the sides while you are backing out of a parking space.

The system may use:

Mirror indicators
Warning sounds
Dashboard graphics

If the system reports a fault, rear radar sensors may be blocked or require service.

25. High Beam Indicator

Looks like: A blue headlamp with straight horizontal lines.

This simply means the high-beam headlights are on.

It is not a warning.

Switch to low beams when necessary to avoid blinding other road users.

26. Automatic High Beam Indicator

Many Lexus RX 350 models include Automatic High Beam.

The system can automatically switch between high and low beams depending on traffic conditions.

A dedicated indicator normally means the feature is enabled.

27. Headlight Indicator

Looks like: A green headlamp symbol.

This means the vehicle’s exterior lights are operating.

Other lighting symbols may indicate:

Low beams
High beams
Fog lights
Automatic lighting

28. Turn Signal Indicators

Looks like: Green arrows pointing left or right.

These flash when the turn signals or hazard lights are operating.

If one arrow starts flashing much faster than normal, an exterior turn-signal lamp may need attention.

29. Snowflake or Low Outside Temperature Warning

Looks like: A snowflake.

This warns that outside temperatures are low enough for icy road conditions to be possible.

It does not necessarily mean the road is already frozen.

Be especially careful on:

Bridges
Overpasses
Shaded roads
Wet pavement

30. Maintenance Required Message

Your Lexus RX 350 can display a maintenance reminder when scheduled service is approaching.

This is different from the red oil-pressure warning.

A maintenance reminder generally relates to routine service such as:

Oil service
Inspections
Tire rotation
Scheduled maintenance intervals

Do not confuse:

Maintenance reminder = routine service.

Red oil can = possible oil-pressure emergency.

Which Lexus RX 350 Warning Lights Mean Stop Driving?

The most urgent dashboard warnings generally include:

Red Oil Pressure Warning

Turn off the engine as soon as it is safe.

Engine Overheating Warning

Stop and allow the engine to cool.

Red Brake Warning With Parking Brake Released

Stop if braking feels abnormal.

Charging System Warning

Move to a safe location because the vehicle may eventually lose electrical power.

Flashing Check Engine Light

Reduce engine load and arrange immediate diagnosis, especially if the engine is shaking or losing power.

What Do Yellow Lexus RX 350 Dashboard Lights Mean?

Yellow or amber generally means:

Something needs attention, but an immediate emergency stop is not always necessary.

Common amber warnings include:

Check engine
ABS
TPMS
Power steering
Traction/stability malfunction
Pre-Collision System warning
Parking brake malfunction
Master Warning

Always consider how the vehicle is behaving in addition to the warning color.

Why Do All the Lexus RX 350 Dashboard Lights Come On at Startup?

This is normally a self-test.

When you start the vehicle, multiple warning lights illuminate briefly while electronic systems check themselves.

Most should turn off after a few seconds.

A light needs attention if it:

Stays on
Appears while driving
Starts flashing
Appears with a warning message
Is accompanied by unusual vehicle behavior

Why Are Several Lexus RX 350 Warning Lights On at Once?

Modern Lexus systems are interconnected.

A single fault can sometimes trigger several warnings.

For example, a problem involving a wheel-speed sensor could affect:

ABS
Traction control
Vehicle Stability Control
Other driver-assistance functions

A blocked front camera or radar sensor can also temporarily disable several Lexus Safety System+ features.

Multiple warnings therefore do not always mean multiple unrelated failures.

Lexus RX 350 Dashboard Symbols Quick Cheat Sheet

Symbol	Meaning	What to Do
Red brake symbol	Parking brake or brake-system warning	Check immediately
Oil can	Low engine oil pressure	Stop engine
Battery	Charging-system fault	Move to a safe location
Thermometer	Engine overheating	Stop and cool engine
Engine outline	Engine or emissions fault	Arrange diagnosis
ABS	Anti-lock brake fault	Drive cautiously
Tire + !	Low tire pressure	Check tires
Steering wheel + !	Power steering problem	Service system
Airbag symbol	SRS fault	Arrange service
Skidding car	Traction/stability control	Flashing may be normal
Triangle + !	Master warning	Read dashboard message
Gas pump	Low fuel	Refuel
Snowflake	Possible icy roads	Drive cautiously
Blue headlamp	High beams active	Normal indicator
Green arrows	Turn signals	Normal indicator
Lane graphics	Lane-assistance status	Check color/message

The Bottom Line

Lexus RX 350 dashboard symbols are much easier to understand when you start with the warning color.

Red usually means urgent.

Yellow or amber means check the system.

Green, blue, white, and gray usually indicate normal system status.

The warnings you should recognize immediately include the red oil-pressure light, brake warning, charging-system light, and overheating warning.

Yellow lights such as check engine, ABS, tire pressure, stability control, and safety-system warnings usually require diagnosis but may not demand an immediate stop if the RX 350 is otherwise driving normally.

Newer RX 350 models also display symbols for Pre-Collision System, Lane Departure Alert, Lane Tracing Assist, Dynamic Radar Cruise Control, Blind Spot Monitor, and other driver-assistance features.

Because Lexus changes instrument displays and available technology between model years, the final reference should always be the owner’s manual for your exact RX 350.

The most useful rule is simple: identify the symbol, check its color, read the dashboard message, and pay attention to how the vehicle feels.