The Service Vehicle or Maintenance Required light is there to remind you to do scheduled service on time. When the light comes on look in your owner's manual to see what service is due. Normally this means change the oil/filter. This is not the same as the Check Engine light which means there is a problem with the emission's system.
If and when it breaks...seriously. There is no need to service or replace it unless there is reason to. All you need to do is keep up on the oil changes and oil level.
Yes, the check engine light is coming on for a reason. You need to take your vehicle into a service center.
They stand for Teacher of English for No Obvious Reason.
You say there is no obvious reason, so the first thing you should do is ask them for a reason. If they refuse to give you one, get a lawyer. The problem is that there are a lot of reasons police can impound a car against your will, and it isn't always obvious which of them they are going to use to justify their actions. The police are also pretty unhelpful to common people, but a lawyer can twist their arm a bit by threatening to get a subpoena. If nothing else, the lawyer should be able to tell you whether the police action had a basis, and can help you uphold your rights if they are acting improperly.
All vehicles are equipped with servicing lights. When a vehicle needs to be serviced, the servicing light will come on. A mechanic can look at your car to tell you why your service light is on.
No service dogs are trained not to bark.
No you don not have to be drunk, but you feel you have to drink most of the time for no obvious reason
for an extreamly obvious reason.
There are many names which, to someone who does not speak the language, appear to have no obvious reason.
The reason why it might not start might be because of the crank sensor.