Brake Light On problems of the 2005 Chevrolet Silverado 1500

I bought a 2005 silverado from my mother, and she bought the truck off of a used dealer lot purchasing for 12,500 four years ago. Since then the truck has had an air bag sensor replaced and it once again showing the air bag needs serviced, which can be very dangerous to truck owners in situations of a crash. Was told they go out commonly. The truck has also had an abs issue since it was purchased on the lot, we sent it back to be fixed, and the issue was never solved, it has been looked at by three technicians. This is also a public safety hazard if the abs causes the brakes to fail. The truck also has numerous electrical issues, such as the gear selector does not illuminate, in which case someone may not be able to determine what gear they are in and cause an incident, the headlight, tail light, brake light, and marker lights are always blowing bulbs, the dash cluster doesn't always want to illuminate either, this could cause a crash especially at dark when you cannot see the rpm, speedo, oil press, temp, or any other gage present.

I bought the truck new in 2005, it has been a piece of junk from the start, I have had multiple problems with this truck, replaced both front rotors & hubs, the dealership said this was normal but I think that it is just normal for a junky Chevrolet, the main power supply plug on the heater motor melted off and would no longer work, front speakers quite working, front brake lines rusted away and the reservoir was dry and the brake light on the dash never came on for a warning, had to replace all brake lines on the front end of the vehicle, brakes are very weak and most of the time the pedal is very soft and goes to the floor and scares me to death, you don't think that the truck is going to stop, this brake issue is a very big problem !!!, several people that I know have the same model truck have the save exact issues, I will never in my life time buy another Chevrolet product as lond as I live and I spread this info with anyone who might even think of buying a Chevrolet, dont do it, they are junk !!!!!!!!!!!!.

Purchased 2005 brand new from dealer. I am familiar with what to do to break-in a new vehicle. I occasionally cross a mountain, and when I apply the brakes lightly, they immediately start to pulsate very noticeably. To get them to stop pulsating, I must apply the brakes fairly hard. This happens all the time on hills/mountains. I was hoping that this would work itself out with time. I presently have 21,000 miles on the truck. I am the only driver since new and it has never seen winter here in pennsylvania. I rotate the tires every 5,000 miles and that hasn't made any difference. I have inspected the brakes and they look fine. The brakes are very strong on this silverado.