To sell your car to a dealer in Texas, bring the title (signed, with the date of sale and odometer reading), your ID, your keys and your loan payoff details if you still owe money. Then file a Vehicle Transfer Notification yourself, because the Texas DMV says a dealer isn't required to put the car in its own name.
TxDMV's selling guidance lists what a seller hands over in a sale:
Bring your driver's license and every key and remote you have. The dealer will check the car in person, so it helps to have them ready.
Your lender holds the lien, so the dealer pays off the loan as part of the deal. Get a current payoff amount from your lender before the appraisal so you can compare offers against the real number. Our page on selling a car with a loan payoff covers how that works.
Selling to a licensed dealer doesn't automatically take the car out of your name. TxDMV says the vehicle can stay in your name until the dealer sells it to someone else, which can take months. If you file a Vehicle Transfer Notification within 30 days of the sale, TxDMV says you can't be held responsible for parking tickets and toll violations committed by the buyer. Our post on the Vehicle Transfer Notification walks through it.
You also have the option to take your license plates and registration sticker off the car. Our post on license plates when selling to a dealer explains your choices.
Having the title, payoff and keys ready means you can act when a good offer comes in. Here's how competing offers work. Get competing offers. It's free to sellers, first responses typically come the same day (not guaranteed), and offers are confirmed after a physical appraisal.