So, new problem. My driver side running light went out. 1. Where is the best place to get a new one and 2. it seems to have messed up my turn signal. The left turn signal now goes, what seems, twice as fast. Will that go back to normal when I replace the light?

 

The lamp unit for the turn signal is a multi function unit giving you DRLs, turn signal and parking lights. You have two hot feeds and a single ground driving a dual filament bulb.

The rapid flash is telling you one of the functions (in your case the DRL) has failed and when you replace the bulb it'll go back to normal

Its a 4157NA which you can pick up at any auto parts store

You'll get three suggestions on how to change it:

Go in through the brake ducts - not easy with a Z06 or if you have screens

Go in through the bottom by taking out the bottom panel



The one that works for me is:

Turn on the headlights and back off one position to kill the lights.
Unscrew the 3 small screws on the black plastic housing around the headlight. Gently pull the housing clear. Reach down around the headlight unit and release the bulb holder. It comes out by turning the bulb holder a ¼ turn counter clockwise but it has a plastic clip which you need to squeeze to release it. Here’s how the bulb fits into the lamp unit. The DRL bulb is the lower of the two.



Here’s the light socket. This one’s after market but it gives you the idea. You can see the clip you need to squeeze.



Change the bulb. It’s a push fit into the lamp holder. Push it home firmly but don’t handle the glass. Use latex gloves if you have them. Reseat the bulb holder and turn clockwise until it clicks back in place. Put the plastic headlight housing back in place making sure to locate the small plastic tab in the bracket on the headlamp cover. Replace the 3 screws and close the lights.

It’s a 10 minute job. Some guys have had the lights close if they’ve taken a while to do the fix. If you’re worried about that, disconnect the battery once the lights are up.

Some guys with big arms remove the hood adjusting screw for better access. Guys with even bigger arms have had to take off the headlight cover. Four torx screws (2 back, 1 each side). Take the back ones off first with the lamps down. Raise the lights and take the side ones out.

 

all will be well once you change the bulb. It does that to let you know a bulb has croaked.

 

with what DeeGee said - just pick up the right bulb from a local auto parts store, install it and all will be back to normal.

 

Great write-up! It saved me lots of time.

 

Once you replace the light, the turn signals should work like they are supposed to.