Chevy Sonic Dashboard Warning Lights Guide

Chevy Sonic Dashboard Warning Lights

Detailed here are the dashboard warning lights for the Chevrolet Sonic. The warning lights are based on the dashboard display diagram. The Chevy Sonic warning lights location and dashboard display design may differ depending on your model. Many warning lights come on with the ignition and should go out just after the engine starts.


  1. Oil Warning Light
    The Chevy Sonic oil warning light comes on in red either because the engine oil level is low or because of low oil pressure. Stop the car as soon as possible and switch off the engine. Check oil level and if low, top up. Only continue driving if the oil light goes out. If the  oil level is normal or light light remains on, it means oil isn’t flowing through the engine properly and can result in severe engine damage. Arrange for vehicle recovery.
  2. Traction Control
    TC stands for traction control and this light comes on when the traction control system has been turned off due to the TCS/StabiliTrak/ESC button being pressed. Traction control helps to prevent wheel slip and should only be switched off if your car is stuck in snow or mud.
  3. Low Fuel Gauge / Warning Light
    The fuel gauge is an indicator of how much fuel is remaining in the tank. The yellow low fuel warning light comes on indicating that you should refuel the vehicle.
  4. Security Light
    The car and lock warning light is the Chevy Sonic immobilizer security light. It comes on in the dashboard display if there is a problem with arming or disarming the theft-deterrent system. If the light stays on and the engine does not start, switch off the ignition and try again. If the engine still does not start, try another key.



  1. Airbag Light
    The Chevy Sonic airbag warning light shows if there is an electrical problem with the airbag system. The fault warning light comes on due to the airbag sensor(s), passenger sensing system, the seat belt pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module.
  2. Front Fog Light
    If your version of Chevy Sonic comes equipped with front fog lights, this green symbol illuminates when they’re switched on.
  3. Indicators / Hazard
    The relevant arrow will flash when a directional indicator is applied. Both lights will flash in green when the hazard warning lights are activated.
  4. ABS
    The Chevy ABS warning light comes on because the anti-lock braking system is not operating. ABS is a braking aid that stops the wheels from locking when braking hard. Providing the red brake warning light is not on, normal brakes will continue to operate. ABS failure is usually associated with a faulty wheel speed sensor.
  5. BRAKE
    The red Chevy Sonic brake warning light comes on because the parking brake has been set. If it comes on while driving, it means there’s a fault with the vehicle brake system. This can be due to low brake fluid. Check fluid levels but only continue driving if the warning light goes off. Do not continue driving with the brake warning light on, the brake pedal may feel spongy and may not stop the vehicle as normal. Arrange to have your vehicle towed.



  1. High Beams
    This blue light comes on when high beam headlights have been activated.
  2. Headlights
    This green symbol comes on when night driving headlights have been activated.
  3. Tire Pressure
    The Chevy Sonic low tire pressure warning light comes on when one or more of the vehicle’s tires has become under-inflated. The low tire warning light may also come on in cold weather and go off when the vehicle has been driven. If the warning light flashes for around 60 seconds then stays on, it may mean that a tire has been fitted that does not contain a sensor, or there’s a fault in the system.
  4. ESC / TCS Off
    This light illuminates when the ESC (Electronic Stability Control) and TCS (Traction Control System) have been manually switched off. Always leave these safety system on. It can be beneficial to turn off traction control if your car is stuck in mud or snow.
  5. Seat Belt
    This warning light comes on when a vehicle occupant is required to buckle their seat belt.



  1. Information Display
    This line of the Chevy Sonic information display includes:

    • Gear up or down recommended shift indicator
    • Automatic engine start stop activated or unavailable
    • Tire learn indicator and tire pressures
    • Seat belt occupancy
  2. This line of the Chevy Sonic information display includes:
    • Fuel consumption
    • Remaining engine oil life
  3. This line of the Chevy Sonic information display includes:
    • Car and wrench symbol indicates a vehicle service is required soon
    • Book and ‘i’ symbol requires information to be found in the owners manual
    • Vehicle fault codes. For the list of fault code numbers, see Chevrolet Sonic fault codes list.
    • Odometer
  4. Door Open
  5. Cruise Control
    The cruise control light is white when ready and turns green when active.
  6. Check Engine Light
    The Chevy Sonic check engine warning light, or engine malfunction lamp as it’s also called is part of the vehicle’s emission control on-board diagnostic system. If the light remains steady on, you can continue driving but have vehicle serviced as soon as possible. A loose or missing fuel cap may cause the light to come on or poor fuel quality. If the light is flashing, damage may occur to the emissions control system. Avoid hard acceleration or high engine load such as carrying heavy loads or driving up a steep hill. Switch engine off and wait 10 seconds before restarting as this can sometimes clear the fault. There are many faults associated with the check engine light and as such, diagnostic equipment is required to read fault codes.



  1. Battery
    The Chevy Sonic battery warning light comes on when there’s a problem with the electrical charging system. It’s likely that the battery will continue to drain as the vehicle is driven. When the battery charge is depleted, the engine will stall. To conserve as much battery charge as possible, turn off any accessories such as radio, heater, air con etc. Make your way immediately to a repair shop. Usual faults include failing alternator, alternator belt, wiring / connections or ageing battery.
  2. Ultrasonic Parking Sensor
    The ultrasonic parking sensors are used for park assist and this light indicates a problem with the system. Ensure areas on the bumpers are clear from dirt and road debris as this is where the sensors are located. If you vehicle has been in a minor collision, it can damage the sensors.
  3. ESC / TCS
    The ESC (Electronic Stability Control) and TCS (Traction Control System) help to stabilize the Chevy Sonic by helping to prevent understeer and oversteer while corners and to reduce wheel slip. If the warning light flashes, it means the system is operating. If it stays on, it means there’s a fault with the system. This system uses ABS sensors and a fault can often be due to a sensor fault.
  4. Engine Coolant
    The Chevy Sonic engine coolant temperature warning light comes on when the engine has overheated. If this happens, pull over and turn off the engine as soon as possible. When the engine has cooled, check coolant levels and top up if required. Only continue driving if the light stays off as continual driving with the light on may damage the engine. If the light frequently illuminates, it may indicate a leak.



  1. Press Pedal
    This light comes on when the clutch or brake pedal needs to be depressed to start the vehicle.
  2. Reduced Power
    The Chevy Sonic reduced engine power warning light comes on along with another warning light – typically the check engine warning light. The engine enters reduced power mode to help prevent damage occurring. You can still drive the vehicle, but you will notice reduced performance. If the light stays on, have your vehicle serviced by a qualified Chevrolet workshop as soon as possible.
  3. Power Steering
    The power steering warning light comes on either due to a fault or if the power steering motor has overheated. Continued steering from left to right lock or leaving the steering on full lock while the engine is on can cause the motor to overheat. The light will go off when the system has cooled down. If the light stays on, have your vehicle serviced. You may notice the steering is more difficult to operate.
  4. Tailgate or Hood Open






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