OnStar

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Special Application Services
• Allison Transmission™ Vehicles Only: Replace external transmission filter at first engine oil change only. • Vehicles with Dual Wheels: Check dual wheel nut torque at 160 km/100 mi, 1 600 km/ ...

Acadia in the Market
The Acadia Denali does what it sets out to do: Be a more luxurious three-row crossover than the standard Acadia. GMC includes the right things — dual-pane sunroof, differentiating body panels an ...

Increasing Speed While Using Cruise Control
If the cruise control system is already activated: • Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it. • To increase vehicle speed in smal ...