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Greetings I purchased a 2021 Trail Blazer a month ago and the hands free lift gate worked. Last week the hands free stopped working so i read my manual talked to the dealership and made an appointment for July 26th (earliest they could get me in). My Son purchased 2021 Trail Blazer a week ago and his hands free stopped working after 3days. So I did what any Journeyman Elec. would do I looked at the Trail Blazer as a computer and decided to do a hard re-boot. I removed the negative terminal, did a ten count and re-connected the terminal. The hands free lift gate is back and working just fine. I text my Son and he repeated the same process on his Trail Blazer and the Hands Free lift gate is back and also working fine. So if all else fails do a hard re-boot using the negative terminal. Good Luck Charlie G
 
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