Hey I just bought a 2003 Hummer h2 one taillight was out I figured it was the led got bad so when I bought the car I bought new led brake lights but same thing passenger side brakes turn signals and reserve but doesn't turn on when I turn on the lights please help

 

Do you have 12 volts to the light?

Check the socket.

 

No power to the socket now the reverse lights went out as well one headlight went out and all the blinkers on the passenger side went out but when I shut off the lights the blinkers work fine let me remind you I bought the truck with all LED lights headlights brake lights side markers blinkers or all LED lights

 

Does not matter what type lights. No power no lights.

If its not a wiring problem.

Start checking your fuses.

 

fuses are fine

 

Anybody that owns a vehicle more than 10 years old should be familiar with electrical issues, how to trace them, and what to use to get things working.

 

just bought it from texas

 

check the rear chassis grounds for corrosion. should be one one both sides near the body bushings.

 

If you read the threads on this forum, you will find out very quickly that the H2 does not like certain types of LED lights. These cause all sorts of mysterious electrical gremlins.

So, put everything back to stock, see what happens. Then start substituting LED lights back in slowly.
You can do it the harder way if you want, but that is what I would do.
You have some serious electrical problems. This is more than a bad connection or ground. Too many issues for that.

 

Solid advice, grounds corrode over time.