Yes, I had the problem about 10 days after taking delivery in November.

Ride became progressively worse & the rear end of the vehicle elevated to the limit of the computer controlled suspension.

Diagnosed as a faulty sensor, this was replaced & no problems since.

It took two days for the diagnoses & fix. The dealer got the part overnight, installed it and it was fixed.

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2008 4.8i Mineral Green Metallic Sports Package, Technology Package, Cold Weather Package, Rear Climate Package, Premium Package, Premium Sound with iPod adaptor & Sirius Radio, Auto Tailgate, Head up display