2010 GMC Acadia Owner's Manual - Page 393

Vehicle Care 5. Turn the lug wrench clockwise to raise the jack until it lifts the secondary latch spring. 6. Keep raising the jack until the spare tire stops moving upward and is held firmly in place. This lets you know that the secondary latch has released and the spare tire is balancing on the jack. 10-77 Have the hoist shaft assembly inspected as soon as you can. You will not be able to store a spare tire using the hoist assembly until it has been repaired or replaced. Compact Spare Tire { WARNING 8. Disconnect the lug wrench from the jack and carefully remove the jack. Use one hand to push against the spare tire while firmly pulling the jack out from under the spare tire with the other hand. 9. Tilt the retainer and slip it through the wheel opening when the spare tire has been completely lowered. 10. Turn the lug wrench clockwise to raise the cable back up if the cable is hanging. Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one compact spare tire at a time. The compact spare tire, if the vehicle has one, was fully inflated when the vehicle was new, however, it can lose air after a time. Check the inflation pressure regularly. It should be 60 psi (420 kPa). 7. Lower the jack by turning the lug wrench counterclockwise. Keep lowering the jack until the spare tire slides off the jack.