No, TurboTax does not have the ability to consider the $18,000 in elective deferrals that you made to your W-2 job. Unmark the Maximize box on the Individual 401(k) page and instead mark the Maximize box for a Profit Sharing Keogh. This will cause TurboTax to Maximize the employer contribution only.
(Presumably box 3 of your W-2 is 118,500, otherwise your maximum employer contribution would be less than $9,866.)
