Toyota Camry: If the electronic key does not operate properly (vehicles with a smart key 
system) - Steps to take in an emergency - When trouble arises - Toyota Camry Owners ManualToyota Camry: If the electronic key does not operate properly (vehicles with a smart key system)

If communication between the electronic key and the vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors and trunk can be opened or the engine can be started by following the procedure below.

If you lose your keys
New genuine keys can be made by your Toyota dealer. For vehicles without the smart key system, bring a master key and the key number stamped on the key number plate. For vehicles with the smart ...

Locking and unlocking the doors and key linked functions
Using the mechanical key in order to perform the following operations (driver’s door only): Locks all doors Closes the windows and moon roof (turn and hold)* Unlocks the door Turnin ...

See also:

When the door cannot be locked by the lock sensor
Use your palm to touch the lock sensor. ...

Tire chains
Tire chains, if necessary, should be installed on the front wheels. Be sure that the chains are installed in accordance with the manufacturer's instructions. To minimize tire and chain wear, do ...

Cruise Control
With cruise control, the vehicle can maintain a speed of about 40 km/h (25 mph) or more without keeping your foot on the accelerator. Cruise control does not work at speeds below 40 km/h (25 mph). On ...