Probably not, but even if they do if you are below their median you would be well served to retake. The only time I'd hesitate to retake is if I were right at their median (172?).
I recall having seen a thread on the same topic a few weeks back.
To summarize previous discussions: HLS claims that it takes into consideration all LSAT scores belonging to an applicant. None of us is an HLS adcom, so nobody could definitively claim whether this is their actual practice or not. Anecdotal evidence varies, suggesting that retakes may or may not hurt an applicant's chance but SEEMS TO depend on the case for the most part.