A modern car with no ABS sensors?
Who fed you that.

Chances are it is a cable issue with the older style Electronic Parking Brake box.
If I am not mistaken, Kadjar uses rear drums for parking brake (disc for rear foot brakes) and the drum system is cable operated.
I suspect one of your wheels is not being locked by the EPB and the unit has chucked up an error.

 

The rear is disk and pads, so what would be best solution to do and to check? I was going to change all pads and see if that would help?

 

I think you will find it's not only discs but will stand correcting. Your Kadjar may be different and I may have jumped in too fast.

System on the qashqai which I have.
Rear discs and pads for the normal foot brake
But that disc has a deep centre boss which acts as a brake drum and houses brake shoes for the handbrake.
Nissan Qashqai Parking Brake MOT Failure - Handbrake Cable Replacement - YouTube

Later Q cars seem to have discs pads only and piggy back motors on the calipers for EPB system
Which your Kadjar may have?

Have a squint under the back end...if handbrake cables then there is a central unit and drums
IF plastic housings on the calipers with electrical connection, then piggy back

If the latter then sticking caliper or pads may be the cause, removal and cleaning would possibly fix.

 

Ok thank you, I’ll do all this and grease up when changing pads next few days and will update once done this

 

You may need to connect Renault specific diagnostics to clear the fault from the dash (If there is a fault).

 

Ok I’ve ordered diagnostics kit which should be here tomorrow, I’m going to take it to garage just to be put on rolling road to see which brake cylinders sticking if it is

 

I’ve removed callipers, cleaned them up put new rubbers on pistons and still showing message, it’s got electrical motor on back which I’ve tested and works ok as I’m aware, I operated the EPB while caliper was off and seen that the piston came out and in as it should on both back wheels, put new pads on aswell, any ideas as to what to do next

 

I think you'll need to reset it on the diagnostics but I'm only guessing...
(unless there is another fault)

 

Ok thank you

 

Leave it a few days and see if message self clears...sometimes do as the beasties settle down.

 

Would love to know wha the outcome was ? My car was driving fine. On the school run had to mount the kerb to get parked. Sensibly drove nice and slowly on the path. Started the car to leave and I get that light and warning on the display.

Car and electronic parking working exactly as expected. Could I have knocked something with my steady move onto the path?

 

Good evening - mine won't start, displaying this message of brake system fail

Ideas anyone?

 

Ola boa tarde a todos meu Renault kadjar troquei discos e pastilhas dianteiro ,a pouco mais de 2 meses e depois de uma longa viagem a roda dianteira começou a fazer um barulho como se estivesse a travar ferro com ferro mesmo sem estar a travar , alguém tem idea do que será ?? Obrigado a todos