2013 Acura TL Owner's Manual - Page 177
2013 Acura TL Manual
Page 177 highlights
Keyless Access System On models with navigation system Your vehicle has a keyless access system. This system allows you to operate the vehicle without an ignition key. When you carry the remote with you, you can lock/ unlock the door(s), unlock the trunk, and start the engine. The system may not work if: The battery of the remote is weak. There is strong electrical current nearby. You carry a cell phone, a laptop computer, or other electrical device near the remote. The remote is covered by metal. A vehicle is being operated with a transmitter nearby. When the remote battery is dead. When the vehicle battery is dead. Each keyless access remote has a built-in key. This key is used to lock/ unlock the doors when the remote battery becomes weak and the power door lock/unlock operation is disabled. You cannot start the engine with this key. Make sure the driver always carries the remote/built-in key set. Protect the remote and the built-in key from direct sunlight, high temperature, and high humidity. Do not drop the remote or the built-in key, and do not set heavy objects on them. Keep the remote and the builtin key away from liquids. If they get wet, dry them immediately with a soft cloth. The built-in keys do not contain batteries. Always keep the remote and the built-in key away from any magnetic material. You should have received a key number tag with your built-in key. You will need this key number if you ever have to get a lost key replaced. Use only Acura-approved key blanks. Instruments and Controls 2013 TL 173