Security Light
The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off.
If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation on page 2‑14 for more information.
See also:
Engine Air Cleaner/Filter
See Engine Compartment Overview on page 10‑6 for the location of the engine air
cleaner/filter. ...
Going & Stopping
The biggest drawback I found with the Yukon was the powertrain. A
380-horsepower, 6.2-liter V-8 is standard in the Denali, but it was sluggish in
almost every passing situation I could simulate. T ...
Center Seat
If equipped, the center front seatback doubles as an armrest and cupholder/storage area for the driver and passenger when the center front seat is not used. Do not use it as a seating position when th ...