You can go to auto zone & they will run a diagnostic scan for free, so you will know what the light or message means, before spending $$
The maintenance required lights to get you into shop to check the systems. You need to get your car checked. You could have recalls etc. They will prioritize the repairs if you are on a budget.
An oil change is abt $90.
More at dealership than at a private garage because their labor rate is skyhigh
When people lose all common sense. Idiot questions like this are asked! Drive your 7 year old car to the shop and let them provide an estimate...geez
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