Multiple issues seem connected

[Struthunter]

2019 Tahoe 5.3 w/6 speed 39k

Having multiple issues. Infotainment center acting erratic, windshield washer motors not engaging, front and back, headlights high beams turn on and off automatically USB ports have intermittent power.
I’ve done the resets on the infotainment center, and checked all the fuses.

I am getting a code for fuel pump sensor. gauge not working.

 

[Fless]

How old is the battery? Have it load tested at a capable battery dealer. After that, remove, inspect, and clean the main battery connections. Don't just eyeball them.

 

[PG01]

100% agree with @Fless
These truck electrical systems are very sensitive to bad grounds, bad batteries and corrosion of electrical connections. Start with your main battery, then cables etc

 

[RoadTrip]

The battery cables can corrode from the inside out with no visible sign. Replace at least the negative cable with a genuine AC Delco one so that the voltage sensor works correctly.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please. If we can't see it, it does not exist.

You are already receiving sage advice from the knowledgeable folks on this Forum.

Start with the battery check.

 

[Struthunter]

How old is the battery? Have it load tested at a capable battery dealer. After that, remove, inspect, and clean the main battery connections. Don't just eyeball them.

Its 2 years old. I will get it load teated and clean it well.