That is a fire and CO (Carbon Monoxide) detector. Typical lifetime is 5 to 10 years. There should be a date somewhere on it and maybe an expiration date.
If cleaning with air duster or vacuum cleaner and a new battery doesn't work then it is time to replace it. Some automatically alarm at end of life. Look your model up.
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
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Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6