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Old 03-16-2012, 07:55 AM
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Re: Auto vs Sport Modes

Quote:
Originally Posted by Newpar View Post
I also noticed that, not only can you switch the select-terrain at highway speeds, but it also lowered it into sport mode automatically when I had it on auto at highway speed (was testing it's real auto functionality). That I did not know, if it was known well I know now haha. On top of that my Overland went into OR1 height when it was snowing heavy outside and below 32 degrees out! I wasn't needing to go over mounds of snow so I put her back in her place at normal ride height. That select-terrain sure is a smart fella.
Your vehicle didn't automatically switch into Sport mode, it went into Aero mode which is 0.5" lower than normal ride height. As far as I'm aware that's the extent of what Aero mode does - it doesn't change shift points, torque splits, etc. That would require turning the dial to put the vehicle in Sport setting, which in addition to putting the vehicle in Aero mode also reduces the traction control, changes shift points, and changes the torque to give the rear wheels up to 80% torque.

As for the vehicle automatically raising into OR1 position, I really don't think it did that based on temperature or road conditions. Even putting the vehicle into snow mode doesn't affect its ride height - it stays at Normal Ride Height. I could be wrong, but I haven't seen anything anywhere in the manual to suggest that's possible.

A quick primer on Quadra-Lift and Selec-Terrain: http://www.jeep.com/en/2012/grand_ch...d_performance/
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WK2 Overland 4x4, 5.7L Hemi V8 with MDS, Multi-speed Overdrive Automatic with ERS, Quadra-Drive II with Rear ELSD, Off-Road Adventure Group II, Selec-Terrain, Quadra-Lift, Towing Group IV, Advanced Warning & Adaptive Cruise Control, Bright Silver Exterior with Beige Leather Interior, CommandView Sunroof, RHB 430N Sirius satellite radio. Added: Blizzak DM-V1 265/60R18 winter tires.
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