GMC Yukon

GMC Yukon

GMC Yukon

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Engine Coolant Heater
The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged ...

Security Light
The security light should come on briefly as the engine is started. If the system is working normally, the indicator light turns off. If it does not come on, have the vehicle serviced by your dealer ...

Tow/Haul Mode Light
For vehicles with the Tow/Haul Mode feature, this light comes on when the Tow/Haul Mode has been activated. For more information, see Tow/Haul Mode on page 9‑42. ...