It sounds as if you either don't have a wiring harness attached to your vehicle, or else you will need to get an adapter. All the plugs and sockets are different, depending on who made it, and how many connectors each one has.
The trailer lighting connector is located behind the left side panel in the cargo area. If you use a converter, you can get the connector and pins that mate with the connector in your vehicle from a dealer. Since lighting and wiring vary with trailer type and brand, you should also have a qualified technician install a suitable connector between the vehicle and the trailer. See related link below.
It is the round connector, with a cover over it, about 6 inches left of and about at the same level as the hitch receiver.
First understand the wiring. It can use four to seven wires to control lighting. Choose the correct connector. Connect all the necessary components to work simultaneously such as electric trailer brake controller, backup lights and a 12V power supply. Take the vehicle to an expert if the task is tricky.
Several different types of connectors are available for a 1995 Tahoe wiring harness. The best connector to use is a connector that has an adapter that works on older trailers. Connect the wires according to color as the colors are universal. Follow the instructions that come with the connector.
Wheri trailer connector on 2004 suburban
check for power at the trailer connector.
I don't believe there is one. I had to have mine wired in.
Faulty Flasher Relay or incorrect flasher relay.
Blown bulb - or loose wire !
Not all 1500's where built with it. If it is there it will be above the parking brake.
A gps trailer tractor is a gps that you connect to your trailer when you go on the road and need to navigator but trailer. These are good to have if you travel alot with your trailer.
The fuse box for the trailer lights are under the hood (drivers side). Have to look in your owners manual to find the correct fuse.