Mich. Comp. Laws § 436.1809
Except as otherwise provided for by law or the Michigan court rules, when an action for damages brought under this act has been reduced to a judgment, the insurer shall, within 90 days from the date of the judgment, pay the judgment together with the costs in full, unless the judgment has been paid or settled by the insured. If the insurer fails or neglects to pay the judgment and costs within 90 days, it shall be subject to punitive damages in the amount of $1,000.00, in addition to the amount of the judgment and interest on the judgment. The amount of the judgment, with interest on the judgment, and the punitive damages provided for in this section may be recovered by the person or persons entitled to damages under the judgment in an action against the insurer in any court of competent jurisdiction in this state.
MCL 436.1809