I asked my dealer about this after seeing it mentioned in the owners manual. Apparently it's not included in the us-spec GLA250's and no one seems to know why. Looks like about $180 in parts for each seat to order it after the fact (but parts were not available when I checked a few weeks ago)
My apologies, folks. Was not aware that the Canadian version has this extra perk. If it's any consolation, when I ordered my GLA250, I was informed by Benz Canada that we won't have the keyless entry function (pull any door lever and get into your car easily especially when you're carrying a lot of stuff). It's only the GLK that carries this.
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