The Morimoto LF545 XB LED headlight set is a left/right pair for 2015–2020 GMC Yukon and Yukon XL. Triple projector styling, white daytime running lights and selectable sequential or standard turn signals replace the matching original assemblies. Check the vehicle’s factory lighting and market specification before purchase.
Fitment and original equipment
- GMC Yukon and Yukon XL: 2015–2020, with matching original headlight mounting and connections.
- Left-hand-drive beam pattern. Morimoto designed and tested the housings on US-spec vehicles; Canadian and other-market compatibility requires an equipment check.
- Check the original headlight type, GM multi-pin connection and DRL operation rather than relying on the model year alone.
- GM references include 84155709, 23342009, 23387147, 23445461, 23342010, 23387148, 23445462, 23217058, 23240253, 23244333, 23288541, 23355857 and 23490012. Compare with the original lamp and full application.
Specifications and contents
| Set / side identity | LF545 set; LF545-L left and LF545-R right assemblies |
|---|---|
| Quantity | Two headlights, one left/right pair |
| Optics | Kuria Optic Bi-LED; triple projector layout |
| Functions | White DRL, turn signal, parking, low beam and high beam |
| Turn-signal modes | Sequential or standard on/off |
| Input | GM multi-pin OEM |
| Housing / lens | ABS plastic / UV-resistant polycarbonate |
| Included wiring | Plug-and-play harness and fuse tap |
The white DRL dims when parking lights or low beams are on. The projectors also perform the manufacturer-described start-up sequence, and the turn signal can be set to sequential or standard operation.
Before installation
Compare the original assemblies and connectors, then follow the harness and DRL fuse-tap instructions. Select the desired turn-signal mode and test DRL, parking, low beam and high beam functions before refitting trim. Check final beam aim once the headlights are secured.
Warranty
Morimoto 5-year limited warranty. Manufacturer terms and exclusions apply.
Product questions and answers
Is LF545 one headlight or the complete pair?
LF545 identifies the set. The left and right assemblies are LF545-L and LF545-R; this BTS listing is for both headlights, with the listed wiring harness and fuse tap.
Does the application include Yukon XL?
Yes. Morimoto’s current application lists both Yukon and Yukon XL from 2015–2020. Match the original headlight mounting, connector and lighting equipment before ordering.
Do I have to use the sequential turn-signal mode?
No. The headlights support a sequential effect or a standard on/off signal. Follow the installation instructions to select the mode and test both sides before refitting the vehicle trim.
Why do the daytime running lights dim with the headlights?
Morimoto describes a DRL that dims when parking lights or low beams are on. That change is part of the intended operation; test the separate DRL and headlight functions after installing the harness.
Does LHD describe which side of the vehicle the lamp fits?
No. LHD describes the beam pattern for a left-hand-drive vehicle. The set still includes a left and a right headlight; it is not an application for a right-hand-drive vehicle.
Does the year range guarantee the same wiring on a Canadian Yukon?
No. Morimoto states that these housings were designed and tested on US-spec vehicles. Confirm the original lamp type, GM connector and DRL setup on Canadian or other-market vehicles before installation.
What should be checked after installing the pair?
Test both turn-signal modes as applicable, DRL, parking, low and high beams. Secure the housings and check their final aim. The supplied connector and mounting pattern do not replace that final functional check.
