Where is Trailer Running Light Fuse of 2018 Chevy Silverado

Updated 07/06/2025 | Published 10/17/2019

Question:

Where is the fuse located on a 2018 chevy silverado For running lights on a boat trailer

asked by: Dan

Expert Reply:

The trailer running light fuse of your 2018 Chevy Silverado is in the number 15 slot of the fuse box under the hood of your truck. I attached a picture with the location pointed out.

expert reply by: Jameson C

click to enlarge

James

2/19/2024

Where is the trailer light running fuse for the 2019 Chevy silverado crew cab

Jameson C.

2/20/2024

@James Should be the same, did you check already and it's different?

Mark H.

8/29/2024

What would be the best fuse under the hood for adding some parking/running lights to the grill on a 2018 Silverado? I have them on the fog light switch but would rather they be on all the time. I tried one of the headlight fuses I think but my lights wouldn’t come on.

Jameson C.

8/29/2024

@MarkH When you say all the time you mean actually all the time or just when headlights are on? If all the time I would try the ignition or radio fuse.

Mark H.

8/30/2024

@JamesonC Actually I meant on when the daytime running lights are on. I thought there was a fuse under the hood I could add a circuit to but I havent found one yet. I tried adding it to the headlight fuse but I couldn't get the added lights to come on. So far only the fog light fuse and switch work.

Vinny24

7/6/2025

@MarkH Are you using after market lights and trying to wire them seperate from the trailer connector at the bumper? Or just the regular running lights that would be powered through the normal trailer wiring harness?