Stack
Stack or Instrument binnacle
The Instrument binnacle in the Elise is made buy a company called 'Stack' and therefore is referred to as 'Stack unit' or just 'Stack'.
Resetting
I recently acquired a GPS and was very shocked to see that my speedo was over-reading by about 10 mph when compared to the GPS. On searching the Tech forum, I realised that this is quite common, and can be simply rectified by resetting the Stack unit as follows:
- Turn off the ignition - Open the driver's door (yes, really!) - Press and hold the trip-meter reset button - Whilst still holding the reset button turn the key in the ignition to the second position (just before the engine turns)
The Stack will then wind both needles back to below the zero position, and the LCD will show the software revision number. Once it's gone through the motions your speedo should then read true!
From my research, this seems to work on all versions of the Elise, including those with Stack and Shurlock instruments.