I've just learned that Specialized issued a recall in 2016 for Sitx and Flux headlights and taillights. Apparently, there have been a small number of these lights that have overheated.

More information here: https://sbc-media.s3.amazonaws.com/L...r%20Notice.pdf

I have one of these lights (Stix taillight) that was sold to me with my road bike in late 2015 by a Specialized store in the UK, so it falls under the affected lights covered by this recall.

I'm picking up my new Specialized bike next weekend so was wondering where I stand regarding this recall notice. If I take my Stix light with me when I pick up my bike, would the Specialized store be obliged to exchange it under this recall notice? Of course, I'll be calling the store tomorrow to ask for this, but I just wanted to be armed with some rights info beforehand.

I love the light so would prefer my affected light to be replaced free of charge as per the recall notice, but I really don't want to pay for a new one as Specialized recommend that users immediately stop the affected lights.

They will replace it with a currently available model. So you have to check that before you give it out of your hands.
I'd summarize all informations back in march 2016:
Review: Specialized Flux Expert Taillight

Thanks.

I checked with Specialized UK and they said the store will exchange the light for a newer Stix taillight.

So, the Stix Comp taillight was replaced with a newer Stix Elite taillight with no hassle today. The Elite does't look as good as the Comp but I imagine is technically better. Fitting and charging is exactly the same.

Great, that was fast.

They replaced the plastic cover on the front on the Elite. Does the light disperse differently? I also have the Comp front/tail lights but purchased them recently. Are they all affected and allowed to get free Elite upgrades? I never felt them hot during charging.

Edit: Just saw the Elite vs Comp are brighter in lumens, have higher battery life, and a different battery life indicator. Going to see if I can get a free upgrade.

The Elite is slightly better. It also has better light dispersion from what looks like a fresnel lens compared to the old comp. so, effectively, it’s a free upgrade.

You can ask your local dealer:
https://sbc-media.s3.amazonaws.com/L...r%20Notice.pdf

Bumping this. So how can they actually tell if your light is affected? I don't see any numbers anywhere whatsoever on mine and I know I bought it around the time of the recall, either just before or just after, and I'm pretty sure I also paid cash for them.

Is there any way for my LBS to be able to tell if mine is part of the recall or not?

I guess only the invoice date.

Yes, go by the invoice date.