Cadillac 2010 CTS Owner's Manual

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Driving and Operating 8-57When towing at high altitude onsteep uphill grades, consider thefollowing: Engine coolant will boil ata lower temperature than at normalaltitudes. If the engine is turned offimmediately after towing at highaltitude on steep uphill grades, thevehicle may show signs similar toengine overheating. To avoid this,let the engine run while parked,preferably on level ground, with theautomatic transmission in P (Park)for a few minutes before turning theengine off. For vehicles with manualtransmissions, let the engine runwhile parked, preferably on levelground, with the transmission out ofgear and the parking brake applied,for a few minutes before turning theengine off. If the overheat warningcomes on, see Engine Overheatingon page 9‑23.Parking on Hills{ WARNINGParking the vehicle on a hill withthe trailer attached can bedangerous. If something goeswrong, the rig could start to move.People can be injured, and boththe vehicle and the trailer can bedamaged. When possible, alwayspark the rig on a flat surface.If parking the rig on a hill:1. Press the brake pedal, but donot shift into P (Park) yet forvehicles with an automatictransmission, or into gear forvehicles with a manualtransmission. Turn the wheelsinto the curb if facing downhill orinto traffic if facing uphill.2. Have someone place chocksunder the trailer wheels.3. When the wheel chocks are inplace, release the brake pedaluntil the chocks absorb the load.4. Reapply the brake pedal. Thenapply the parking brake and shiftinto P (Park) for vehicles with anautomatic transmission or intogear for vehicles with a manualtransmission.5. Release the brake pedal.Leaving After Parking on a Hill1. Apply and hold the brake pedalwhile you:. Start the engine,. Shift into a gear, and. Release the parking brake.2. Let up on the brake pedal.3. Drive slowly until the trailer isclear of the chocks.4. Stop and have someone pick upand store the chocks.