Do Sig P226 pistols have problems with jamming?

That's very interesting. I have yet to have a Sig Sauer P226 because of the gun. I have had three failures to feed due to out-of-spec ammunition, one of which was so badly malformed, a strip of the casing had back-peeled down the side.

ANY pistol can theoretically jam. However, some guns are more prone to it for a number of reasons. The 226 is not, in my experience, one of those. It is reliable enough that I would carry one as a duty or defensive pistol without hesitation.

Field strip the pistol and thoroughly clean it first. Then lube it in the proper places and on the rails. If it is truly new you should have gotten a packet of grease with it. Make sure you are using only factory or Mec-Gar mags. Make sure you put at least a couple hundred rounds through it, preferably 4-500. Some Sigs need a little break in, some dont. Shoot the pistol left handed. I know you say you are not hitting the slide release, but just to on the safe side shooting it lefty will totally eliminate this possibility. If it still does it after 4-500 rounds and you did all these things, call Sig and they will fix it.

All semi autos can jam under certain circumstances. Holding it with a weak grip, underpowered reloads,and failure to clean it are some the main reasons for jams in an otherwise quality semi auto.

We teach "tap rack and bang" drills to every body who passes through here- regardless of what they bring in to train with.

Why? Because every brand of semi auto pistol will stove pipe or double feed... when you need it to work the most.

In my observation... 90% of malfunctions in semi auto pistols are shooter induced.... limp wristing, tea cupping (wow, what we learn from TV and Hollywood)... over lubrication and underlubrication of the firearm.

The other 10%... dirty magazines. Out of spec ammo.

Watching people shoot on You Tube is a lot like watching mental defectives trying out any other high order task. I see a lot of bad ideas on the interwebz... even watching a "good trainer" without a little instruction will send a watcher away with some bad ideas..

Nope. If used properly, well maintained, & feed quality ammo it should not be a issue.