GMC Terrain: Warning Lights, Gauges, and Indicators / Charging System Light

GMC Terrain. Charging System Light

The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. The light turns off when the engine is started. If it does not, have the vehicle serviced by your dealer.

If the light stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked by your dealer. Driving while this light is on could drain the battery.

When this light comes on, the Driver Information Center (DIC) also displays a message.

If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner.

    Passenger Airbag Status Indicator

    The vehicle has a passenger sensing system. See Passenger Sensing System for important safety information. The overhead console has a passenger airbag status indicator...

    Malfunction Indicator Lamp (Check Engine Light)

    This light is part of the vehicle’s emission control on-board diagnostic system. If this light is on while the engine is running, a malfunction has been detected and the vehicle may require service...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Tire Pressure Monitor


    This vehicle may have a Tire Pressure Monitor System (TPMS). The low tire pressure warning light alerts to a significant loss in pressure of one of the vehicle's tires. If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the Tire and Loading Information label...

    GMC Terrain 2018-2025 Owners Manual: Conversions and Add-Ons


    Add-On Electrical Equipment Warning The Data Link Connector (DLC) is used for vehicle service and Emission Inspection/Maintenance testing. See Malfunction Indicator Lamp (Check Engine Light). A device connected to the DLC — such as an aftermarket fleet or driver-behavior tracking device — may interfere with vehicle systems...

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