The halogen headlight bulbs on the Yukon had faded a bit over the years specially the low beams in the last 12 months or so and also in contrast to the LED headlights on the Jetta & GTI. These are the OE bulbs and had never been changed, so after some research and a balancing act between accessibility and performance I went in for the Sylvania H11 LEDs ($130+tax) for the low beams, Sylvania 9005s ($130+tax) for the high beams and Sylvania 5202s ($140+tax) for the fog lights, all bought at Canadian Tire. At the same time I discovered that one of the rear license plate lights had failed and so changed those also to LEDs. For me the beam pattern was important as the OE beam pattern was perfect and fortunately the Sylvania's also retain that perfect beam pattern, both high and low, just that the light is whiter and significantly brighter. These bulbs have a 3 year warranty from Canadian Tire so let's see how durable they are. In my research I discovered that there are supposedly much better and pricier bulbs out there, the GTR Ultra 2.0 has got excellent reviews and a lot of people online swear by them, but they were US 225 for each low and high beam pair from headlightrevolutions and I was not sure whether they would be plug and play like the Sylvanias or whether one would also need an anti-flicker module and the ease/difficulty of installing that. Also in the event they don't work, it's much simpler to just return to Canadian Tire rather than shipping to the US.
Also had to change the rear pads and rotors after 90,000 km, the front's are OK for now, the first time I changed the OE pads and rotors was at 100,000 km, so it looks like in my type of driving I am getting about 100,000 km from a set.