Actually in cases where your fob has died according to the manual you can pop off the black cover in front of the emergency brake. Under it there is a key slot where you can place your key in. Once inserted you press the start button with your foot on the brake to start your car like normal.
Edit:
the black cover almost looks like a small little space for sticking your change.
No start button on my brake lever. You have any pictures of said button?