It could be the PCV pipe. Mine has had that problem more than once and it was the same thing both times. Have it checked for any vacuum leaks.
You neeed to repair what is causing the light to come on. Then remove the neg battery cable for 30 seconds.
check obd2 with scanner for trouble codes find problem, fix or replace sensor or part, clear codes with scan tool
Check the fuse or the bulb???
how do you reset check engine light in 2008 buick lucerne
engine light
The check engine light on a Buick Regal can be reset with a special diagnostic scanner. This can be performed at a car dealership or service garage.
The check engine light on the 1998 Buick Park Avenue can be reset by disconnecting the battery for a few minutes and then reconnecting it. The check engine light is only going to stay off if the problem that created the light is fixed.
In a 1991 Buick Skylark, the dome light is typically controlled by the interior lamps fuse, which is often located in the fuse box under the dashboard. You can refer to the owner's manual for the exact fuse number and location. If the dome light is not functioning, check this fuse for any signs of damage or failure.
It looks like an engine, or it may just say Check Engine.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
I'd check the sensor for the emergency brake. It's probably faulty.
Get a code read out from your engine computer and it will tell you what is wrong.