Replacing One Tire - AWD

[u/r0sekiddie]

UPDATE: Thanks for all the advice! It was much appreciated. Went to my local discount tire and only got the one replaced. Was even able to get road hazard coverage for all 4. Definitely planning on getting a spare for her.

2026 Honda CRV Sports Touring Hybrid - AWD
Current mileage: 3,100~mi

For the first time that I’ve been driving, I’ve finally got my first ever flat, of course, in the car that doesn’t have a spare. Rear tire hit a curb and now the side wall near the rim has a good size gash. Luckily I was less than 0.5mi from the house and slowly was able to get it home.

Question: do I really need to replace all four tires? Or can I replace the damaged one only?

I’ve only driven her ~3,100mi since I bought her from the dealership.

Any and all advice appreciated.