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Owning a Subaru means enjoying a balance of reliability and performance. Indicators that pop up on the dashboard exist to keep everyone safe and informed. Some icons indicate a minor, routine reminder.
Others may call attention to something potentially hazardous. A quick look at the message can be the difference between a simple fix and major damage.
Take a moment to glance below for a deeper look at commonly seen lights and recommended next steps.
ABS Warning Light
Anti-lock Brake System (ABS) helps maintain stability under hard braking. A lit ABS icon might mean:
- It doesn’t glow during ignition ON, or
- It glows at ignition ON but remains lit past 25 mph, or
- It lights up during a drive.
In each of those scenarios, it’s best to visit the Subaru dealer as soon as possible. When the ABS light glows (and the regular brake icon is off), anti-lock assistance stops working.
However, normal brakes still function. If the EBD (Electronic Brake Force Distribution) system malfunctions, both ABS and the brake light glow together. Once the problem is corrected, everything should return to normal.
Notes on Normal ABS Behavior
- It tends to glow when the ignition is first switched to ON, then turns off a couple of seconds after the engine has started.
- It can illuminate momentarily during a jump-start due to low battery voltage. It should go off once the battery is charged.
Access Key Warning Indicator Light (If Equipped)
Keyless access with push-button start systems are designed to reduce the chance of theft or errors. A flashing light and a chime often signal an issue, like the key being out of range while the vehicle is still running.
- Never drive if the push-button ignition switch flashes green during engine start. That might mean the steering wheel lock hasn’t released.
- If a flashing green light remains on re-start, contact the dealer promptly.
- A flashing orange indicator on the push-button ignition switch also calls for an immediate dealer visit.
Occasionally, the key warning might activate even when the key is inside the car if certain conditions interfere with signals.
All-Wheel Drive Warning Light (CVT Models)
Subaru all-wheel drive is a hallmark of the brand. In CVT models, an AWD icon blinking means tire diameter differences or extremely low pressure might be causing strain on the powertrain.
- Pull over safely and check if one tire is a different size or if any tire is underinflated.
- Using a temporary spare also triggers the blinking. It’s best to swap the spare for a regular tire as soon as possible.
AT OIL TEMP Warning Light (CVT Models)
Excessively hot transmission fluid can trigger a red flag on the dashboard. If it appears while driving, pull over, shift to Park, and let the engine idle.
Wait until the light goes out before resuming the drive. Continued driving with overheated fluid may harm the transmission.
Transmission Control System Warning
A blinking “AT OIL TEMP” symbol right after engine start points to a possible control system failure. Technicians at a Subaru dealership should inspect the vehicle right away to prevent bigger issues.
Auto [+] and Auto [−] Indicators (STI)
Performance-minded drivers may see indicators labeled “AUTO [+]” or “AUTO [−].” Those appear if an STI’s driver-controlled center differential is set to particular automatic modes.
It’s normal for enthusiasts who prefer more or less initial LSD torque.
Automatic Headlight Beam Leveler Warning Light (If Equipped)
Self-leveling headlights rely on sensors to aim beams properly. If the light glows or doesn’t go off after three seconds at ignition, the system might need dealer attention. Properly leveled lights make nighttime driving safer.
Auto Start Stop Indicators and Warnings
Modern Subarus might include an Auto Start Stop system designed to reduce emissions.
- A green indicator shows the engine shut off is active at stops.
- A separate indicator labeled “No Activity Detected” lights up if the system is temporarily not meeting conditions.
- A yellow Auto Start Stop warning suggests a malfunction. It should flash or remain lit if a fault is detected. The system might also disable itself in that case.
- An Auto Start Stop OFF indicator glows when the system is manually turned off.
Auto Vehicle Hold Indicators and Warnings
In traffic, the Auto Vehicle Hold feature can keep a Subaru stopped even if the brake pedal is released.
- An ON indicator shines when the system is active.
- If the ON indicator fails to glow when the switch is pressed, the electronic parking brake might be malfunctioning.
- A driver should be wary on steep hills or slippery roads because the vehicle can still move unexpectedly.
- The electronic parking brake could activate on a steep slope. This is normal but requires awareness.
The system also cancels itself after about 10 minutes of continuous hold, or if the seatbelt is unfastened, among other conditions.
Brake System Warning Light
A bright red brake icon can mean the parking brake is on or the brake fluid level is low. Driving under that condition is risky.
If the light stays lit (with the parking brake off), there could be a leak or worn brake pads. Pull over and check fluid levels.
- If both the brake and ABS lights glow together, EBD might be malfunctioning.
- If fluid appears sufficient, drive slowly and carefully to a Subaru dealer.
- If the fluid reservoir is below the MIN mark, do not proceed further. A tow is the safe option.
BSD/RCTA Warning Light (If Equipped)
Blind Spot Detection and Rear Cross Traffic Alert keep a driver aware of surrounding hazards. If a BSD/RCTA indicator remains displayed, the system might be out of operation. A prompt visit to the dealer is recommended.
BSD/RCTA OFF Indicator Light (If Equipped)
A press of the BSD/RCTA OFF switch shuts down the feature. The OFF indicator glows while the function is deactivated or suspended.
Charge Warning Light
Anytime the engine is running but a charging system alert glows, an alternator belt issue or another charging failure may be the cause.
If it stays lit or appears while driving, check the belt as a first step. If in good shape but the light stays on, it’s time for a service appointment.
CHECK ENGINE Warning Light/Malfunction Indicator Light
A steady or blinking “CHECK ENGINE” suggests an emissions-related issue. It’s wise to call the dealer soon. Prolonged driving with an active problem can cause extra damage.
- A loose fuel cap is a common cause. Retighten it until it clicks and wait a few drives to see if the light clears.
- A blinking light may mean an engine misfire. Ease off the gas, avoid heavy loads, and schedule a check-up immediately.
Coolant Temperature Low Indicator Light/Coolant Temperature High Warning Light
A combination light with blue and red colors signals engine temperature changes.
- Blue means not fully warmed up.
- Red blinking means overheating is near.
- Solid red means overheating is already happening. Pull over in a safe spot and allow the engine to cool.
If it blinks red and blue alternately, an electrical concern might exist. Seek professional help promptly.
Cruise Control Indicators
Two main icons include the standard “CRUISE” and another one that glows after you set a certain speed. If the “CRUISE” one blinks, skip using cruise control and have it inspected.
Door Open Indicator and Door Open Warning Light
A simple door ajar icon often appears if a door isn’t fully closed. Make sure all doors are shut before driving. That includes the trunk or rear gate. A separate red door warning might also appear as an extra reminder.
Driver Monitoring System Indicators (If Equipped)
Modern Subarus offer a driver monitoring feature that tracks attention and preferences. An OFF indicator lights up when the system is deactivated. A green one lights when it’s active.
A temporary stop or a yellow warning might appear if a problem occurs. If the yellow one is on, it’s wise to see a dealer soon.
Driver’s Control Center Differential Indicators (STI)
Performance STIs often include a driver-controlled center differential. An icon might display the auto mode or show the manual limited slip torque settings. If all the indicators start flashing, the system might be malfunctioning. A dealer check can pinpoint the fault.
Electronic Parking Brake Indicator Light and Warnings
Subaru’s electronic parking brake is engaged via a switch rather than a lever. The dash indicator glows when it’s active and turns off when released.
- A flashing icon indicates possible malfunctions.
- If it won’t release, call for towing.
- Pressing the switch too often can trigger a frequent operation warning.
It’s best to avoid repeated on/off toggling in quick succession, since the system can overheat or go into protective mode.
Engine Hood Open Warning Light
That light shines if the hood isn’t fully latched. It functions even with the ignition off. Double-check that the hood is closed securely before driving away.
Engine Low Oil Level Warning Indicator
When oil dips to a lower limit, an alert appears. The wise move is to stop, park on level ground, and check the dipstick.
Topping up might solve it. If the indicator doesn’t clear, or returns soon afterward, schedule an inspection promptly.
EV (Electric Vehicle) Mode Lamp (If Equipped)
Hybrid Subarus can show an EV lamp when moving on electric power alone, or when the engine is auto-stopped by the hybrid system.
Expect it to go off once the engine restarts.
Front Fog Light Indicator Light (If Equipped)
An illuminated fog light icon in green usually signals that front fog lamps are in use. Toggle the switch to turn them off, and the indicator will also go out.
Front Passenger’s Frontal Airbag ON/OFF Indicators
Subaru advanced frontal airbag systems monitor passenger presence. The ON light glows if the airbag is active. The OFF light glows if the airbag is deactivated.
If both remain on or off after the usual system check, the system might not be functioning correctly.
Front Passenger’s Seatbelt Warning Light
A front passenger seatbelt warning may flash and chime if someone sits there without buckling up. Weight on the seat can activate it, so heavy items might occasionally trigger a false alert.
Keep seatback pockets empty and ensure seat positioning is locked. If it malfunctions repeatedly, consult the dealership.
High Beam and High Beam Assist Indicators (If Equipped)
A conventional high beam symbol glows blue when high beams are on. If the high beam assist function is active, a separate indicator might glow, typically green. A yellow alert can appear if the assist feature malfunctions.
Hill Descent Control Indicator Light (If Equipped)
On certain models, such as Subaru Outback, a downhill assist feature holds speed on steep slopes. That function’s icon flashes when actively controlling speed. If it turns off, the assist is no longer in use.
Hill Holder (Hill Start Assist) Warning Light and Hill Start Assist OFF Indicator Light
Hill start assist helps prevent rollback on inclines. A warning lamp glows if it’s not functioning. An OFF light remains lit if you manually disable it. If you see the warning while the feature is on, the system likely needs service.
Hybrid System Indicators (If Equipped)
Various symbols may appear for hybrid battery charge or hybrid battery save modes. A “Hybrid Fail Lamp” might shine if the system detects a severe issue. It’s important to talk with a Subaru dealer quickly in such cases.
Icy Road Surface Warning Screen
When the outside temperature hits 37°F (3°C) or less, a cautionary screen appears to warn of potential black ice.
It doesn’t vanish unless the temperature rises above 41°F (5°C). Rely on an outside temperature gauge only as a rough guideline, since real road conditions can vary.
Low Fuel Warning Light
A small fuel pump icon typically glows when there’s about 2.6 US gallons left. Refilling soon is good practice, because running dry can harm the engine. The light stays on until roughly 4.5 gallons or more are added.
Low Tire Pressure Warning Light (U.S.-Spec. Models)
A tire pressure monitoring system (TPMS) icon lights up if the system senses a significant drop in pressure.
Sometimes it blinks for a minute before staying on, indicating a malfunction. Regular checks with a gauge are still crucial, as TPMS isn’t a replacement for routine tire care.
Oil Pressure Warning Light
A bright red oil can icon hints at low oil pressure. Pull over immediately and confirm oil level. If the level is good but the light won’t clear, a deeper problem could be present.
Driving further might worsen engine damage, so dealership assistance is recommended.
Power Steering Warning Light (Except STI)
Modern Subarus typically include electric power steering. If the warning icon glows, steering effort might feel heavier. It’s still possible to steer, but caution is urged.
Overuse at low speeds (like sharp parking maneuvers) can temporarily limit power assist, but it usually recovers once things cool down.
RAB Warning Light (If Equipped)
Reverse Automatic Braking uses sonar to detect obstacles behind the vehicle. An illuminated RAB symbol points to a system malfunction.
If deactivated manually, an RAB OFF indicator may appear.
Rear Differential Oil Temperature Warning Light (STI)
An “R.DIFF TEMP” alert indicates high rear differential temperatures. Slowing down and stopping to cool things is necessary. Continuing to drive might damage the powertrain. If it stays lit after cooling off, a repair shop visit is likely required.
REV Indicator Light (STI, BRZ)
A performance-oriented feature that glows once the engine hits a set RPM. On BRZ and STI models, it might flash around the redline to warn about max revs.
Seatbelt Warning Light
The dashboard seatbelt icon typically includes both driver and passenger sides. If the belts aren’t buckled, the light flashes and a chime sounds (for the driver).
At speeds over 9 mph, it can keep flashing and chiming until seatbelts are fastened.
Security Indicator Light
Alarms and immobilizers use a small blinking symbol to show the system’s current status.
On models with push-button start, it may blink after the engine is turned off or after the driver’s door is opened/closed. It also blinks if an unauthorized key is inserted into the ignition.
Shift-up Indicator (STI)
Economical driving sometimes involves upshifting at optimal RPM. An arrow might appear to prompt a shift. It can be turned on or off based on driver preference.
“SNOW” Indicator (Vehicles with an Automatic Transmission)
Winter conditions can call for a special low-speed mode. Pressing the button might illuminate a “SNOW” label on the dash. It helps limit wheel spin on icy or snow-packed roads.
Sonar Audible Alarm OFF Indicator (If Equipped)
Parking or reversing sensors rely on sonar. If an OFF symbol is lit, the sonar’s audible alerts are disabled. It’s a good idea to keep them on unless there’s a reason to switch them off.
“SPORT” Indicator (Vehicles with an Automatic Transmission)
Selecting a sport driving mode often lights a “SPORT” icon. That setting adjusts shift timing for quicker response, useful in mountainous regions or during spirited driving.
Sport (S) Mode Indicator Light (If Equipped) and Sport Sharp (S#) Mode Indicator Light (If Equipped)
SI-DRIVE setups might include S, S#, and I (Intelligent) modes. Each one tweaks throttle and torque response. A shining S or S# means that particular performance map is active.
SRS Airbag System Warning Light
If the airbag light flickers or stays lit, the occupant restraint systems may not deploy properly in a collision.
That includes seatbelt pretensioners too. It’s crucial to schedule a dealership inspection if any anomaly occurs with this safety feature.
Steering Responsive Fog Lights OFF Indicator (If Equipped)
Steering responsive fogs help with corner illumination. An OFF icon shows up if they’re turned off. Re-activating them clears the indicator.
SUBARU Rear Vehicle Detection Warning Indicator and SUBARU Rear Vehicle Detection OFF Indicator (If Equipped)
SRVD tracks approaching vehicles at the rear corners. A warning symbol means a fault. Turning SRVD off by switch shows an OFF label in the multi-information display.
Driving without it reduces situational awareness, so re-engage it if possible.
Timer Charging Setting Indicator (If Equipped)
Plug-in hybrid Subarus often have scheduled charging. An icon pops up when a battery charging timer has been programmed through remote or in-car settings.
Traction Control System OFF Indicator Light
TCS helps keep traction in slippery conditions by controlling wheel spin. A light might shine if the system is switched off. Some driving scenarios, like deep snow or mud, might require deactivation of TCS, but caution is advised.
Traction Mode Indicator Light
Certain models provide a specialized traction mode. When the driver briefly presses the Vehicle Dynamics Control OFF switch, the traction mode icon lights up. It allows a bit more wheel spin for specific conditions.
Turn Signal Indicator Lights
Familiar green arrows blink when signals or hazard lights are active. Rapid blinking typically means a bulb failure. Replacing a burned-out bulb is a quick fix for that.
Vehicle Dynamics Control OFF Indicator Light (OR Vehicle Stability Control (VSC) Off Indicator – BRZ)
Vehicle Dynamics Control or VSC can be disengaged via an OFF switch, handy in scenarios like powering out of deep snow.
A constant light tells the driver it’s been turned off. If it fails to go out once the button is pressed again, a fault may exist.
Vehicle Dynamics Control Warning Light/Vehicle Dynamics Control Operation Indicator Light (OR Slip Indicator – BRZ)
If the dynamic control system senses a malfunction, a warning glows. The typical guidelines are:
- A flashing slip icon indicates the system is actively helping with stability or traction.
- If the light remains solid, a breakdown in the electronic controls is possible.
The system often uses the same electrical circuit as ABS, so an ABS issue may disable Vehicle Dynamics Control as well.
“VSC SPORT” Indicator (If Equipped)
Some sporty Subarus include “VSC SPORT,” a mode that allows more spirited cornering with minimal electronic intervention. If it’s lit, advanced traction strategies are partially relaxed. That can be enjoyable for track days but might be less stable in poor weather.
Windshield Washer Fluid Warning Indicator
A small reservoir icon or text alert that fluid is low. Filling it is simple. Remember to use a suitable fluid blend for the local climate.
X-MODE Indicator Light (If Equipped)
X-MODE adjusts throttle response and AWD parameters to handle rough terrain. The symbol brightens when activated and goes dark once it’s turned off. Excellent for challenging roads or muddy trails, but it’s best to switch it off once traction is normal again.
Concluding Thoughts
A Subaru’s dashboard is a reliable messenger that’s always trying to help. Each light points to a distinct system, from advanced safety features to mechanical functions like brakes and steering.
The best policy is to treat any persistent light as a gentle prompt to act. Simple steps, such as checking fluid levels or tightening a fuel cap, can resolve some alerts.
Others may call for a visit to the Subaru service center sooner rather than later. A bit of awareness goes a long way, since prompt action may prevent expensive repairs or safety risks.
Stay prepared, enjoy the drive, and keep an eye on the instrument cluster. It’s often the first sign that crucial maintenance or a small fix is needed, and that can save stress and money down the line. Safe travels!
