Some might find this useful, use at your own risk. (Works with all vehicles that have the TFT instrument display if you are unfamiliar with model year of software details)

To place your vehicle in Engineering Mode if you have GEN 1.5 and 2.0 Software -

Press the "i" button and start button for 3-5 seconds.

The centre TFT display will show that the car is in engineering mode and will allow you to scroll through a number of screens to view different settings, fault codes, specifications and software information as well as a number of self tests, voltage information for key systems and status of a number of chassis and MOST components.

Hold "i" to exit.

You can't amend settings or clear any fault information, but you can view it.

I found this out by accident, being too quick on changing my trip computer before I'd switched the engine on!

Is this similar to the 753 "hack"? 2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

how does this work on a 2010 model ?  All my spelling errorz are belong to me!

2023 FFRR L460
2021 AM new Vantage

yes should work fine on 2010, as it has gen 1.9 software.

Where is the "I" button? Should've been old enough to know better...doh!
Current 2010 5.0 SC Autobiography
Previous 2006 TD6 Vogue SE
Previous 1998 P38 4.6 Vogue Autobiography 50 (No 10)

Think its on the indicator stork, the button that changes the small display from MPG to miles to empty etc .... 2021 P400 Silicon Silver AB
Gone 2011 Bournville TDV8 VSE
Gone 2008 Black Canadian HSE LUX

yes, "i" button is on the end of the left hand stalk

Yep, works on my 11MY 4.4 TDV8......not that I understand what it is showing me  4.4 TDV8 Vogue Baltic Blue MY11