Brake hold feature - emergency brake

I thought the parking brake should disengage automatically when you hit the accelerator pedal? different on different models?

My 4 banger releases the parking break when i hit the accelerator pedal, the only time this doesn't work is when I haven't engaged my seat belt before!

My bug about the break hold is I have to engage it every drive, I wish there was a way of just having it turned on indefinately.

Agreed. I'm sure it will become second nature to do it though.

Amnesia said:

My 4 banger releases the parking break when i hit the accelerator pedal, the only time this doesn't work is when I haven't engaged my seat belt before!

My bug about the break hold is I have to engage it every drive, I wish there was a way of just having it turned on indefinately.

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Thank you! I didn't even realize it did this. Sometimes I hit the gas before my seatbelt goes on. I will have to start putting on my seatbelt right away.

Amnesia said:

My 4 banger releases the parking break when i hit the accelerator pedal, the only time this doesn't work is when I haven't engaged my seat belt before!

My bug about the break hold is I have to engage it every drive, I wish there was a way of just having it turned on indefinitely.

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Also, agree with you on the second point. I wish you could turn it on and off whenever, rather than have it turn off every time you park your car for a bit.

I only found out the first point through trial and error, so when i was in a rush i didn't do my normal routine which when I am rushed obviously involves not putting my seatbelt on before I drive away! (in my defence in my previous cars by the time i am off the drive its on!).
When i didn't have my belt on it just jumped (like if you had a hand break on!) and I worked it out!

The break hold is a godsend though! Should be standard on every automatic.

tete1526 said:

However, it seems that when you park and turn the car off after using brake hold, it automatically engages the emergency parking brake.

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Anyone else not seeing this behavior? I was actually glad to hear this as I use the parking break and would like for it to auto engage. But today i ran some errands with the brake hold on and that worked great but I never heard the parking break engage. Also when putting the car in reverse on start it would roll out which is different than when the parking break has been enabled.

I may dig through the manual and see if I can find any clarification.

See p396 of the Handbook for the conditions when the parking brake automatic operates.

Thanks TLX2014. This clears it up a bit. gigq, maybe you stopped prior to 10 minutes after engaging brake hold? According to the manual, that is one of the thresholds that enables the automatic emergency brake.

TLX2014, yeah looks like the manual is pretty clear:

In the following situations, the parking brake automatically operates.
...
* When the engine is turned off while brake hold is applied

I'll play around with it in the morning and see if I can figure out what I was seeing. Anyone know if there is a way to tell for sure that the parking brake is engaged? Maybe it's being set and I'm just not realizing it.

There is a red indicator that lights up that says "brake" (i believe) near the gauges

tete1526 said:

There is a red indicator that lights up that says "brake" (i believe) near the gauges

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Ah yes, there is a red PARK that shows up for the parking break. So I've been able to figure out what the manual means by "When the engine is turned off while brake hold is applied".

Basically if the break hold is currently applied (as in you are in drive and have pressed the break) then if you immediately shut off the engine it will apply the parking break. However if you shift into park the break hold is no longer being applied, so when you shut off the engine the parking break is not being automatically set.

So my use case of not having to remember to engage the parking break won't work as it doesn't get automatically set once you shift to park. Unless I were to always shut the engine off in drive first then shift to park, but that seems wrong.

After having the TLX for 2 1/2 months, I finally got around to using the Brake Hold feature. It's fun to use and amazing how it engages or doesn't engage. It's easy to use even if I want to creep along with my foot lightly on the brake. If I want it to hold the brake, I press a little harder. Excellent. I still have the fear of not fully trusting Brake Hold, but I guess I can get used to it.

On my car, when I pull into a parking space, hit the brakes fully and shift into Park, the electronic brake comes on. When I turn off the car, the PARK light remains lit for a few seconds and goes out. When I restart, the PARK light is still on, but goes away with my press the gas pedal. Neat. Then I have to press Brake Hold again if I want to use it for that session. It would be nice to have Brake Hold on by default.

I was wondering... With brake hold on and you let go of the brake pedal, do the rear brake lights remain on? I would think so, but I am not certain.

Summest said:

I was wondering... With brake hold on and you let go of the brake pedal, do the rear brake lights remain on? I would think so, but I am not certain.

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This has bugged me too, I am pretty certain it does but haven't tested it yet.
I would like to know the answer too

Amnesia said:

This has bugged me too, I am pretty certain it does but haven't tested it yet.
I would like to know the answer too

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It does. I was wondering the same thing then a nice shiny semi pulled up behind me while i had the foot on the brake so I engaged brake hold. I then let my foot off the brake and noticed that the brake lights stayed on from the reflection off the grille. They turn off as soon as the car starts moving.

psx1483 said:

It does. I was wondering the same thing then a nice shiny semi pulled up behind me while i had the foot on the brake so I engaged brake hold. I then let my foot off the brake and noticed that the brake lights stayed on from the reflection off the grille. They turn off as soon as the car starts moving.

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Funny! I was also curious, but I test mine at night on a lonely country road by checking the reflection in the road signs LOL.