There is one slope that does not agree with brake hold.

[Lucas_Smith97]

There is a crossroads that I walk through around once a week, and I would say that it has a respectable incline—roughly speaking, I would say that it is somewhere about 15 degrees. Because it is such a busy four-way intersection, I usually end up being stopped at a red light there, which means that I will be facing up the hill at the time. It frequently takes many presses on the brake pedal before the auto-hold or brake kick down function (or whatever the exact term is!) to operate. Does anybody have any ideas as to why this could be the case?

[Sophie_Williams2001]

It's possible that either your primary battery or your auxiliary battery, assuming your vehicle has one of each, is beginning to wear out. A trip to Halfords, in the event that you are unable to inspect them yourself, is likely to be your best option.

[MercedesFan2022]

Do you have a lot of foot space? It's possible that while you press down on the brake pedal, you're inadvertently giving a very small touch on the gas pedal, which prevents the hold function from being activated. Don't bother asking how I came to know...

[Lucas_Smith97]

I don't believe that to be the case given that I changed the primary battery on June 22 and the vehicle has only traveled little more than 5,000 miles since then; in addition, the stop/start function is operating normally.

[Lucas_Smith97]

Although I do have quite large feet, this cannot be the cause since the problem occurs in numerous locations than the one in question.