Originally Posted by T.I.R
I belive that I got some bad connections or interferences somewhere in my Karma. I often got an alert about right hand headlight (but it works 100%), or an alert about the tyre pressure (but they are 100% correct). Sometimes I notice that the gear selectors flashes during driving. Sometimes when I start the car, the ac control on the screen is blank = No info.
Anyone out there that recognize those problems?
Is there anything that ca be done?
I have noo idea of what software I got. Can I find that info somewhere?
I think you have a collection of largely unrelated things, none of which are likely due to your battery or connections.
Headlight Alert: I've received a message like this a handful of times over seven years, and in every case the headlight is working fine and the message doesn't return the next time the car is started. My uneducated guess is that something didn't complete properly during the vehicle startup sequence or the software got 'confused' and led to a spurious error. As ridiculous as that sounds, there are plenty of threads here about the software's fragility at startup, the start sequences owners have worked out, and generally, the importance of letting the car wake up slowly.
Tyre pressure/TPMS. Multiple known challenges here, including the fact that the pressure reported onscreen does not account for atmospheric so it is greatly exaggerated from actual pressure, or that the pressure display can only be accessed when there is a warning condition, and even then only for a moment. It's also possible that the wheel it is reporting is not the right wheel if you've ever rotated or changed tyres, etc. Search these forums for "TPMS"
Gear Selector flashing: Benign and common "feature" of the Karma. Search for "Disco PRND" for more information.
Screen blank at startup: This is also not uncommon and frequently a symptom of the startup sequence being interrupted or confused.
Regarding Start-up, here's some general tips and the sequence I follow. Everyone has their own. The big key is to take your time, and let the car finish one thing before asking it to begin another.
-I enter the car and wait for the welcome chime to complete
-I press the "start" button _without_ my foot on the brake pedal to start ACC mode. (while this is going I usually fiddle with putting my phone in the mount)
-When the ACC mode is done starting (the range bars have filled in) I press the brake and press Start to put the car in Ready mode
-Once the car is fully in ready mode i press Accept on the screen.
It takes about 45 seconds start to finish, and I am fairly certain that some of it may not be strictly necessary and some may be superstition at this point, but then again, my car starts correctly and completely > 99% of the time. It works for me.