CLUSTER F#%K

Since I bought my 2006 Tahoe it’s had the common cluster issues. The gas and temp gauges always seem normal. The oil pressure gauge will be fine and then drop all the way down. Sometimes it will be all the way down from the start of driving.
The volt gauge will work fine sometimes but most of the time it’s all the way to the right beyond numbers.
I know all that is very common issues with these vehicles. But is that the only issues with the clusters?
The bottom right corner of the battery light is always a little red.
Also since I bought it the Service Air Bag, Service Tire monitor, and
Service Brake booster warnings come up in the information display. And just today it also started saying Service 4WD.
Has anyone had these issues? Is it the cluster? Is it wiring, like a bad ground or something somewhere? Or do I have issues with every single one of these parts of the vehicle?
Thank you

The needles are probably the stepper motors going bad. I’d youre handy with a solder gone you can orde the updated stepper motors and solder them after taking out the old one she. The backlighting can be done the same way. As far as the service air bag, brake booster and tire monitor it could be a ground. The most common on the two forward grounds, the one up behind the driver’s side corner of the front bumper, and on the frame rail right below the drivers door. Trying giving them a good clean up and see what happens. There is a thread I believe in the 2006 section that addresses all the common issues that cause those wanting message sto come on. Use the search feature and give it a read.