Some car guy

Hi, I have the same GM 85540054 (was 23473339) keypad entry on my Chevy Traverse. Was told that the batteries aren’t replaceable. BUT… I took the keypad off with dental floss, took off the cover, pried/popped the 12 little tabs one by one and the unit opened up. Standard CR2032 battery (you can see where it is between the two 3M tape parts! Replaced battery and popped it all back together. Didn’t need to re-program it either! Forgot to take a photo while replacing the battery but YES, battery is replaceable on GM/Chevy/Buick keypad entry!