Only 2000 miles ago, I installed new Michelin Pilot Sport AS 3+. They were on clearance sale, being an outgoing model. Of course, I now have a nasty screw at the sidewall of a rear tire. Problem is that I cannot locate another PS AS 3+.
-Should I get one Pilot Sport AS 4+? Or
-Should I get *two* new tires for the rear?
Road hazard insurance will cover the cost of replacing the one damaged tire.

update - pic. I really doubt that the puncture is repairable. (What do you think?) The road hazard coverage is through Tire Rack. I called them and they said only the damaged tire will be replaced. Too bad on replacing the other tire on the axle.

 

See if someone can order the psas3+ if that's what you really want. I've had tires shipped from across the country when I was in a similar situation.

 

Tires on the same axle should always match, so either get another PS AS 3+ to replace the punctured one or get two new rear tires of whatever you want...ideally something close in comparison to the front, which are still PS AS 3+.

 

Ebay my friend.
Alot of people don't realize how many new and used(mostly what I use it for) you can get on there. I've had the same situation happen to me that you did and I just went through ebay to find the same used tire at the same tread depth I had on the other 3. A couple of the regular sellers on there have the tire on your door step in 2 days.
But like what was said above, try to keep matching tires on the same axle.

 

Plug it with the tire patch

 

Unfortunately this is not an option for him as it is SIDEWALL damage, it is never advised to attempt repair of sidewall damage to a tire. I don't know of a single shop that will even consider patching a sidewall puncture.

 

Road hazard will cover the damaged tire, but I'm certain it will not cover the axle's other tire. I guess that if I can't source a 3+, then I'll have to pay for one 4+. (Trying to avoid out-of-pocket expense, ha!) As for eBay, which I've used to buy tires for previous vehicles, I'm wondering if road hazard will pay out for eBay purchases - Will have to check on that. Thanks for the tips.

 

Where is the road hazard warranty from? I’d put the onus on them to find your matching tire for you and if they can’t it becomes a safety issue to replace just one with a different compound and tread. Then escalate/push for them to pay to replace two.

 

The road hazard coverage is through Tire Rack. I called them and they said only the damaged tire will be replaced. Too bad on replacing the other tire on the axle. I'll see if the local tire shops can source an PS AS 3+ for me.
Photo added to OP.

Sorry - The sidewall itself is not damaged. The screw punctured the tread, but pretty much AT the sidewall area. I added a photo to OP.

 

I would get one of those tire sealant from Walmart and see if it can be repaired. If it plugs the hole and holds the air, that's all you need.
If you notice it leaks the air over time, then get a new tire.

 

Lol.. sidewall not damaged.. go to a tire shop (not Walmart / Costco / Sam's club).. In Newark, they fix any kind of tire there with a patch within minutes.. you need to find a good tire shop that gets the job done

 

Based on the pic that was added I would be replacing the tire.
Where the screw is I would consider a gray area...meaning that the puncture is not truly on the sidewall, but at the same time it's not really in the usable part of the tread.
When you look at the angle of the screw, it's definitely heading towards the sidewall.

Out of a sheer consideration of safety, that should not be plugged, it should be replaced.
And really any reputable tire shop shouldn't be fixing that.

 

Pretty sure that's within the range where it's advised you replace vs. repair. If that's the case, which it likely is, no tire shop will take on that liability.

 

The advice on this forum is good for sure but I feel like some people are way too particular about little things.. completely wrecked cars are able to be driven on the roads. People are telling you to go out and get a new tire, that tire isn't even made anymore so you're going to have to go through extra trouble finding it.. then I see people saying "you have to get a matching tire because if you get the Michelin 4S tire, it's not good"... I think if you find a shop that can save your tire do that (get it PATCHED not a PLUG)... if you don't want to do that, then go get the Michelin 4S tire, you don't need to change the tire on the other axle, nothing crazy is going to happen.

The worse set up I ran was having the OEM tires (bridgestone turanza) in the back and michelin AS3+ in the front and my back spun out because the turanza tires are terrible. The Michelin 4 tire is an UPDATED version of the AS3+.. it's essentially the same tire...

Top 5 Wrecked Cars that People are STILL DRIVING

 

Just to clarify, tires should be the same on the "same axle", not the other axle. I don't think anyone was suggesting that the front tires have to match the rear.
You can run Michelin 3's in the front and 4's in the rear...or a completely different tire brand in the rear if so desired.
Ideally you want the tires to be similar front to back...i.e. not putting all-seasons on the front and summer performance on the rear...or like some that put winters on the rear and all-season on the front (during winter).

Honestly that tire should not be repaired...and if a tire place does repair it, post the shop on here...people should be made aware of this place so they can avoid it...realistically if they are willing to do that to a customer, then there is no boundary for what they are willing to do, safety be damned. The tire is the only contact between the car and the road, and it's not that much when you think about it, so you have to be sure it's on point...I'm sorry to say, but there are just some lines in the sand you don't cross...and this is one of them.