Hill descent control (green)

Illuminates continuously when HDC is selected and HDC operating conditions are met - i.e. vehicle speed below 30 mph (50 km/h). If the lamp flashes, HDC has been selected, but the operating condi ...

Cruise control (green)

Illuminates when cruise control is active.   ...

See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the veh ...

Operating tips
► The images from a device that is connected to the rear auxiliary input jacks cannot be viewed on the front displays. ► It is not possible to switch the source to USB (if so equ ...

Diesel
Fuel grade Only refuel with ULTRA-LOW SULFUR DIESEL FUEL (ULSD, 15 ppm SULFUR MAXIMUM). Using other diesel fuels could result in increased wear and damage to the engine and/or exhaust system. ...