GMC Sierra Owners Manuals

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Exterior
GM says the Yukon Hybrid's exterior changes are intended to make the SUV more aerodynamic compared with the gas-powered Yukon. A modified bumper drops the regular Yukon's fog lights for some chunk ...

Power Reclining Seatbacks
To adjust a power seatback, if equipped: • Tilt the top of the control rearward to recline. • Tilt the top of the control forward to raise. ...

Engine Cooling System Messages
ENGINE HOT A/C (Air Conditioning) OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gauge on page 5‑14. To ...