Johnn16

I have a 2015 Chevy suburban LT I’m having a lot of issues with fixing the HID’s they won’t stop flickering I have checked all the fuses, changed the ballast, purchased expensive HID’s and still have the problem. Please help

tech2

If its an aftermarket hid system....do you have an antiflicker module?

If the truck came with halogen bulbs from factory the bcm pulse width modulates voltage to the headlights. When you change to aftermarket hid s ystem....the pwm voltage won't operate the system properly.... you need af modules

Johnn16

i believe it’s not an aftermarket system since even the fuse says it’s for HID LTS. Would I still need the Antiflicker Module?

Gumby22

You shouldn’t need an AF module with factory HID’s.

When is it happening? Whenever the lights are on, or only when in motion? Does it matter if you turn the switch to manual instead of auto? Dims/brights/both? Turn signals/flashers on or off? Brake pedal being applied? Does it stop or start when turning?

You may need to have a shop scan for body codes or get a device that can do it for you, such as a dongle and phone app.

Johnn16

They don’t flicker when the truck is off. And I turn them on. They stay on just fine. It’s when I turn the engine over that it starts flickering.

Johnn16

I’m going to give it the body codes a try see what I can get. I appreciate your advice

MWeirick89

Did you ever get this figured out? I have a 2017 Suburban that's doing the same...