Replaced the halogen bulbs for LED & new HID low beam bulbs.

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

MrMonte

Full Access Member
Joined
Jun 23, 2022
Posts
279
Reaction score
736
Replaced the halogen bulbs for LED & new HID low beam bulbs. On my 2018 Yukon Denali with 132K miles. Also installed the harness that allows the fogs to stay on with the high beams on.
Was pleasantly surprised on how easy to work on. Took about 30 minutes to replaced all bulbs front & rear. The harness took about 30 seconds to locate & install with only knowing it's under the dash.
1000026806.jpg
1000026816.jpg
1000026818.jpg
 

Double J

Member
Joined
Sep 2, 2025
Posts
33
Reaction score
71
Location
UT
Did the “all on” harness throw any codes? It’s a pending install for me but I’ve read some reviews that have indicated random issues such as the horn bizarrely becomes disabled and codes related to lighting are generated.
 
Last edited:

tuckerrnr1

Supporting Member
Joined
May 30, 2017
Posts
6,802
Reaction score
38,413
Location
Port St Lucie, Florida
Did the “all on” harness throw any codes? It’s a pending install but I’ve read some reviews have stated random issues such horn becomes disabled and codes other than “check engine” generated

I used this one on my 2010 and 2016 Suburbans, locate two wires, feed into slots, clamp down. No issues in years.
 
OP
OP
MrMonte

MrMonte

Full Access Member
Joined
Jun 23, 2022
Posts
279
Reaction score
736
Did the “all on” harness throw any codes? It’s a pending install for me but I’ve read some reviews that have indicated random issues such as the horn bizarrely becomes disabled and codes related to lighting are generated.
No codes or issues.

All Lights Mod 6 High Mod
 

Oshkash

TYF Newbie
Joined
Dec 29, 2025
Posts
4
Reaction score
1
If I may ask, what was the light bulb numbers for the backup lights and also license platelets? And by changing out the license plate lights, do you get a glaze or a haze from your backup camera? Thank you
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
29,674
Reaction score
46,197
Location
Stockton, Ca.
Did the “all on” harness throw any codes? It’s a pending install for me but I’ve read some reviews that have indicated random issues such as the horn bizarrely becomes disabled and codes related to lighting are generated.
no, I guess maybe it could depend on what you install but the fleece doesn't cause issue's at all, fogs work like normal or come on with high beams or flash to pass
I can't use the 6 high on the silverado because it has projectors, high is just a actuator that moves the bulb housing
 
OP
OP
MrMonte

MrMonte

Full Access Member
Joined
Jun 23, 2022
Posts
279
Reaction score
736
If I may ask, what was the light bulb numbers for the backup lights and also license platelets? And by changing out the license plate lights, do you get a glaze or a haze from your backup camera? Thank you
No glare or haze on backup camera. These are the reverse & license plate bulbs I used.

1000029103.jpg
1000029100.jpg
 
Last edited by a moderator:

Loki223

Full Access Member
Joined
Apr 27, 2023
Posts
606
Reaction score
1,312
Location
Elk, WA
Not a fan of putting LED drop ins in housings not designed for them. but i won't lecture you on that. i do like the plug and play 6 high harness though, the older fleece set ups were great, but i never really liked how on the K2s it's essentially a dual alligator clamp to cut the wires and splice them together. I get it that it's cheap and simple, but i hate damaging wires to do something, which is what the fleece one does on the K2s. I'll be snagging one of those harnesses for sure
 

CaptainMurray

Member
Joined
May 3, 2022
Posts
35
Reaction score
46
Did the “all on” harness throw any codes? It’s a pending install for me but I’ve read some reviews that have indicated random issues such as the horn bizarrely becomes disabled and codes related to lighting are generated.
No issues on my 2020 Yukon doing this.
 

Forum statistics

Threads
137,945
Posts
1,972,169
Members
102,239
Latest member
2011burbLTZ
Back
Top