99 Tahoe Interior Light Flicker

[RAWVORTEC]

My interior lights will flicker when hitting bigger bumps on road. I had noticed the day before that my doors didnt automatically unlock when turning engine off as usual, and the door unlock button doesnt work all the time, whether I use interior switch or my remote. Also, my cigarette lighter usually charges my phone, but did not want to this morning. I had to plug it into one of the plug-ins next to it. It looks like other forums have an array of answers, due to everyone haven't a different shortage.

 

[liquify33]

That sounds like a loose/corroded connection at the battery or a failed major ground.
Based solely on the spread of issues it might be the connections on driver side fuse box as well

 

[Big Mama]

X2 follow the negative cable to the chassis. If it looks ok remove it and clean it with a wire brush reinstall with dialectical grease.

 

[Salty_Dawg]

My interior lights will flicker when hitting bigger bumps on road. I had noticed the day before that my doors didnt automatically unlock when turning engine off as usual, and the door unlock button doesnt work all the time, whether I use interior switch or my remote. Also, my cigarette lighter usually charges my phone, but did not want to this morning. I had to plug it into one of the plug-ins next to it. It looks like other forums have an array of answers, due to everyone haven't a different shortage.

 

[Salty_Dawg]

My interior lights started flickering when the back window stopped latching well. I have tailgate, w/window. I now have to close that window a little harder for the switch stay off and interior lights not to flicker over bumps. But it still leaks. My passenger door lock does not always open on mine either, all the time (with remote), about half the time. I do not believe these issues are related in my case.

 

[Big Mama]

If one happened before the other you’re probably right. I’d fix the leak though