Have you got the part number for light

Ebay or scrapyard will be your best option i think. The tekna has led bulbs for main lights

Try another brand off batts in the fobs like panasonic or engerzier

viewtopic.php?t=7123

Air in the cooling pipes and thermostat check next

All cars have problems these days with the amount of electrics and sensors in them.even if it had 7yr warranty you would still be in the same situation running back and fourth to the dealer. I've been lucky with my 8yr old qashqai clocked up 80,000 miles in the 5yrs of owening it never had a problem...

only other way around it is to find another dealer that may not be local but can get you seen quicker

https://www.ebay.co.uk/itm/126436417116

V7 is the last ever maps card been released for the qashqai, the maps on it are from 1st half of 2021.

take a look here https://www.ebay.co.uk/itm/175416792200

i would clear all the codes and check again in a wk or so and see if any re-appear, as you don`t know how old all them codes are