Lexus NX Fog Lights: Specs, Fitment & Common Faults

A genuinely useful piece of context worth knowing about fog light diagnosis: listening for a distinct relay click helps confirm whether the fault is the relay or the switch on related models.

Illustration for editorial purposes

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Lexus NX Fog Lights: OEM Part Number

Accuracy note: we weren't able to verify a confident Lexus NX fog lights part number at the time of writing. Please confirm the correct part via a Lexus dealer or parts specialist using your VIN.

Lexus NX Fog Lights: Rarely Used, Easy to Forget About Until Needed

The Lexus NX's fog lights sit unused for most owners most of the year, which means a fault can go unnoticed for a long time — right up until a genuinely foggy morning makes the problem obvious at the worst possible moment.

Before you buy: fog light fitment and bulb type vary by trim — not every trim level includes them as standard. Always confirm against your VIN before ordering.

Lexus NX Fog Lights: What It Does

Front fog lights are angled and positioned to illuminate the road surface in low visibility conditions without creating the glare a standard headlight beam would in fog. Some higher trims of the NX integrate fog lights into the same housing as cornering lights or daytime running lights, which affects both the part number and the complexity of any repair.

Fitment & Compatibility

Lexus NX Fog Lights: Generations & Fog Light Type

Standard trims	Halogen fog light bulb as standard
Higher trims, later model years	LED fog lights become available further up the range, genuinely a different assembly and connector from the halogen units on lower trims

Not every trim level of the NX comes with fog lights fitted as standard, and the housing design often differs between trims that have them integrated with other lighting functions and those with a standalone unit. Always confirm your specific trim's fitment before ordering. Whether you're sourcing a replacement fog lights for your Lexus NX from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.

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A Genuinely Useful Piece of Context Worth Knowing About Fog Light Diagnosis — Lexus NX Fog Lights

If both fog lights have stopped working, this is genuinely worth trying: listening for a distinct click from the relay when the switch is turned on helps confirm whether the relay is engaging. If you hear no click at all, this points toward the switch rather than the relay.

A genuinely useful diagnostic point worth knowing: even a brand new replacement relay can itself be faulty or the wrong type — swapping it temporarily with the horn relay, a known-working relay of the same type, is a genuine way to test this.

It's also worth knowing that even a bulb that looks completely fine can have a corroded ground contact point, distinct from the filament itself being blown.

Lexus NX Fog Lights: Common Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Fog Lights Guide for common faults to check for (including exactly what fails an MOT), how easy this job is to DIY, and aftermarket advice.

More Lexus Fog Lights

The same part, covered across other Lexus models.