Park brake fault on steep climb

**dirvine** · 12th January 2021, 12:34 PM

Originally Posted by TuffRR

Pretty sure brake lights do come on when HDC is activated.

Yes they definately do. I was following a D4 and a RR sport and their brake lights were going on and off the whole time. I personally dont like HDC and use the gears and my fright foot, to manage progress. However I do understand it also works in reverse which could be a life saver in certain circumstances.

**DiscoJeffster** · 12th January 2021, 12:44 PM

Originally Posted by dirvine

Yes they definately do. I was following a D4 and a RR sport and their brake lights were going on and off the whole time. I personally dont like HDC and use the gears and my fright foot, to manage progress. However I do understand it also works in reverse which could be a life saver in certain circumstances.

And you know for a fact they didn’t press the brake pedal at all? I’m not suggesting they don’t (I will go and test it) but I’m not sure.

**dirvine** · 12th January 2021, 03:03 PM

Originally Posted by DiscoJeffster

And you know for a fact they didn’t press the brake pedal at all? I’m not suggesting they don’t (I will go and test it) but I’m not sure.

Yes because I asked them why they were riding the brakes so much!!

**akovach** · 14th January 2021, 08:59 AM

Originally Posted by ytt105

Hawc

If you had HDC on you were probably using the cars brakes only, hence the hot brakes.

I don't think the brake controller would operate the trailer brakes without you using the foot brake!

Trev

I've done some pretty steep hills, admittingly without a trailer, and I've very rarely needed to brake, other than to feather. However, I'm usually in 1st gear and maybe 2nd. Never in D. The engine braking on the D3, 4 and 5s is excellent for an auto.

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