Ehicle servicing at independent repair shops will void your warranty
Your warranty is valid until the expiration date, regardless of where you service your car. Dealerships will imply that you can only go to them, but actually requiring you to do so is illegal. Any maintenance covered under your warranty can be performed by any auto repair shop — just save your receipts to prove what was done and how much it cost. Any maintenance specified in the owner’s manual and done according to the prescribed schedule should not void your warranty.