Miss the deadline or misunderstand what is being challenged, and a driver can lose driving privileges before the criminal case is even finished. An implied consent hearing is an administrative proceeding where the state decides whether a person's license should be suspended for refusing a chemical test - usually a breath, blood, or urine test - after a lawful drunk-driving arrest. The hearing is separate from the criminal OWI case. It focuses on narrow questions, such as whether the officer had reasonable grounds, whether the arrest was lawful, whether the person was advised of the consequences of refusal, and whether there was an actual refusal.

That separation is the trap. Many people assume fighting the criminal charge automatically protects their license, but these are different tracks with different rules and deadlines. In Michigan, the implied consent process is governed by MCL 257.625c. A driver typically has only 14 days after receiving the Officer's Report of Refusal to request a hearing through the Michigan Secretary of State. If no hearing is requested in time, the suspension can take effect without any real challenge.

This can spill into other legal problems fast. Losing a license may affect work, medical treatment, and court appearances, especially for people who drive long distances on roads like I-75. In a crash-related personal injury or insurance dispute, a refusal and resulting suspension can also become damaging facts that insurers or opposing lawyers try to use against the driver.