You will also have six points added to your record. With a first drunk driving conviction you face possible vehicle immobilization for up to 6 months. With a second conviction you face mandatory immobilization for 3 to 6 months, and possible vehicle forfeiture. This will depend largely on the crime you are charged with, your prior record and on the policy and discretion of the Judge to whom the case is assigned. In Michigan sentencing on all alcohol related felonies will be controlled by the sentencing guidelines, and you should discuss this with your attorney.
Judges can give jail time even for a first offense.
There is the alternative sentence of 30 - 90 days of community service. With a third alcohol related offense in Michigan within the prior 10 years the sentencing guidelines apply and you should discuss with your attorney how these guidelines will effect your likely sentence. There are really two sets of rights that apply to drunk driving arrests, the Miranda rights and the chemical test rights. The Miranda rights are those that apply to post-arrest statements that the prosecutor wants to use against you. On the other hand, if you are asked to take a chemical test, but the police do not explain your chemical rights to you, including your right to also have you own test, then you may be able to keep the police test results out of evidence.