Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.1307d

(a) Assert, claim, or impose a mechanic's or similar type lien if the facility has violated this act or rules promulgated under this act with respect to the transaction on which the lien is based.

(b) Seek the repossession of a motor vehicle if the facility has violated this act or rules promulgated under this act with respect to the transaction on which the repossession is based.

(c) Seek to assert or enforce a lien by refusing to return a vehicle if the facility has violated this act or rules promulgated under this act with respect to the transaction on which the refusal is based.

(d) Fail to return a customer's vehicle if there is a dispute and the customer has paid the amount of the written estimate and any amount in excess of that amount that was agreed to either orally or in writing by the customer.