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Charging System Light
This light comes on briefly when the ignition key is turned to START, but the engine is not running, as a check to show it is working. If it does not, have the vehicle serviced by your dealer. The ...

Vehicle Overview
GM says the Sierra 1500 Hybrid's gasoline V-8 and electric motors team up for an overall mileage improvement compared with the regular Sierra. The Sierra Hybrid is only available as a rear- or fou ...

Second Row Seats
Second Row Seats The second row seat can be folded to access the third row. Pull the sliding seat lever forward; the seat cushion folds, and the seat slides forward. See Rear Seats on page 3R ...