Looking in my non-steppy TF handbook, amber light could be:
'Antilock braking system - illuminates when starter switch is turned on for approx 5s'
'Engine Indicator - illuminates when starter switch is turned on and extinguishes once engine is running'
Or, Low fuel - apparently illuminates when fuel is as low as 8l or 1.8gall
So no major worries...
BUT I think if you're low on brake fluid and/or if the handbrake switch below the lever is faulty you can get amber as well. Check brake fluid level first, I reckon...