I have also experienced the issues with tyre wear and pulling to the left on my Holden Captiva, but not believing Holden dealers were specialists in wheel alignments I took mine to Heasman Steering in Sydney. The mechanic there said there is not much he could do without doing a front-end modification to allow enough adjustment to correct the issues. I found this to be strange on a new car, but he assured me many new cars have the same problem. The work was done, it cost me $220, but the car now drives fine. I still have the original tyres on the car and they have done 45,000 km and probably still have 4000-5000 km left in them. Thought you might be interested.
It appears Holden is unable to fix the problem, so owners experiencing rapid tyre wear/the vehicle pulling to the left should think about consulting a suspension/steering specialist who seem to be able to do what Holden can't.
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