Auto Start/Stop Technique

[Mark S.]

I wonder how it would hold up in court if you tried to use "auto hold failed to engage" as your defense if you rear ended the vehicle in front of you or hit a pedestrian crossing the street. Good luck with that.

I'm not taking a nap, fercrissakes, I'm just taking my foot off the brake pedal. No rear-end accidents or dead pedestrians as yet. I'll keep you posted...

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[Stircrazy]

Auto Hold is a selection in the main system. I don't like how jerky it is at take off, so we have ours disabled. But the hold button is more like a parking brake. I find it handy at long stops. Waiting for a train, or road construction etc.

how did you disable the auto hold? mine rarely comes on, I have only noticed it when I stop on hills.

 

[Stircrazy]

To each his/her own. I love this feature; I don't have to hold the brake pedal while waiting for the light to change. The only downside for me is rental cars. If I drive one without auto hold I have to be very, very careful...

oh , don't get me wrong I will try it out. I had just never noticed it before, well I saw the toggle for it but didn't know exactly what it does. So I will play with it now as I am curious. I was just wondering if there was some big advantage to it that it would have made its way as a feature, usaly there is a reason why something is added.

 

[Dude]

oh , don't get me wrong I will try it out. I had just never noticed it before, well I saw the toggle for it but didn't know exactly what it does. So I will play with it now as I am curious. I was just wondering if there was some big advantage to it that it would have made its way as a feature, usaly there is a reason why something is added.

This should answer your wondering…

Auto Hold is a safety and convenience feature that keeps your vehicle stationary, even with the brake pedal released, by maintaining the last applied braking pressure, preventing accidental rolling.

Here's a more detailed explanation of the purpose of Auto Hold:

Prevents Rolling:
When you come to a complete stop and press the brake pedal, Auto Hold retains the braking pressure, allowing you to remove your foot from the brake pedal without the vehicle rolling forward or backward.

Safety Feature:
This is particularly useful in stop-and-go traffic, on inclines, or when waiting at traffic lights, as it prevents the vehicle from rolling unexpectedly.

Convenience:
It eliminates the need to keep your foot on the brake pedal for extended periods, reducing driver fatigue and making driving more comfortable.

How it Works:
The system uses the ABS/ESC hydraulic unit to maintain the braking pressure after the vehicle comes to a standstill, and it automatically releases the brakes when you press the accelerator pedal.

Not a Parking Brake:
Auto Hold is not a substitute for the parking brake, but rather an extension of the electric parking brake system, providing a more convenient way to stay stationary without having to engage the parking brake.

Hill Start Assist:
Some vehicles with Auto Hold also include a hill-start assist feature, which helps prevent the vehicle from rolling backward when starting on an incline.

 

[Deleted member 12075]

Here's something I discovered quite by accident the other day that might mitigate some of the dislike for the auto stop/start system. I know my biggest beef is the slight delay after stepping on the accelerator pedal (while the engine starts) before I get any actual acceleration. It's an acceptable delay in my opinion, but if you hate, hate, hate it nonetheless, you can avoid it by giving your steering wheel a slight twist just before the light changes. When you do, the engine will start, leaving the auto hold for the brakes (if you use that feature) engaged.

My guess as to why this works is that the system cuts power to the electric steering motor when the engine is off to prevent placing too much load on the battery, therefore it must start the engine to provide power to the motor so you can turn the steering wheel. You'll feel the motor turn on as soon as the engine starts.

It's a nifty way to avoid the engine-start delay!

I was blessed with my 5-Star tune which eliminated that start/stop nonsense altogether

 

[Stircrazy]

I was blessed with my 5-Star tune which eliminated that start/stop nonsense altogether

I don't mind the start stop at all, I have noticed it saves me a lot of fuel when driving in town, and on the highway you never stop so it isn't an issue there.

 

[Deleted member 12075]

I don't mind the start stop at all, I have noticed it saves me a lot of fuel when driving in town, and on the highway you never stop so it isn't an issue there.

still, if I wanted a golf cart, I would have bought one

 

[pbnj]

I don't mind the start stop at all, I have noticed it saves me a lot of fuel when driving in town, and on the highway you never stop so it isn't an issue there.

I ve heard Stop/Start could lead to issues with the turbo engine. I try to turn it off immediately. May even put a post it to remind me to turn it off

 

[jkernitzki]

I ve heard Stop/Start could lead to issues with the turbo engine. I try to turn it off immediately. May even put a post it to remind me to turn it off

I think that's just more FUD than any real empirical data. I don't see any unique connection between a turbo-equipped motor and ASS. At low RPM/idle conditions, the turbo's doing diddly squat.

 

[Stircrazy]

I ve heard Stop/Start could lead to issues with the turbo engine. I try to turn it off immediately. May even put a post it to remind me to turn it off

lots of people who don't understand stuff automaticly think they are bad and spread rhumors about them. they are harder on batteries that why they reomend the agm that are made for that. as for turbo, your slowing to a stop, the oils has already cooled down so it isn't realy an issue. I have almost 80000miles on mine now and have never even had a check engine light. the only time I turn it off is if it is stop and go in construction because it is hot hear and I don't want the ac slowing down

 

[pbnj]

I am in Texas and it’s hot here. My old car used to keep the AC on so you don’t fry at a traffic light. I’ve yet to experience battery issues. Is the AGM battery recommended regardless?My 23 Sport has about 24k on it.

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