Panic Braking Today

The trade off between absolute control and safety defaults to safety, which, at the end of the day, is the way it should be, since safety is vastly more important than the composure of the truck, it's driver or passengers.

What if, instead of a school bus you saw, it was a small child who ran onto the road in front of you? What if it were a darting elk? Or some moron in an oncoming car turning left in front of you?

No question, it's annoying when a machine at your command does not do precisely as you want it to. But hard or near emergency braking, and getting an electronic assist the odd time it's called upon, is a bit like insurance - better to have your whole life and rarely need it, than need for one rare second and not have it.

It's also something you can get used to with some practice, a little like some of the stability control settings in high-end sports cars that allow a little tail wagging, but not too much. Just takes some practise to learn the limits.

Don't forget, adoihcj, you're still in the learning curve of your truck, and I suspect the next time you're in a similar situation, you will know exactly how sensitive the pedal can be and will master the hard stop in the way that befits your many years of driving experience.

For those with less experience, however, the brake assist will no doubt save their asses, and their trucks, from considerable misery, not to mention expense.
 
I'm torn...on one hand I like having the safety, but I have noticed while high speed driving that it grabs too much if you wanna just quickly scrub some speed. There are a bunch of situations that I've been in where it's from the gas to a quick tap of the brake and right back to the gas.

In the end you need to get used to this and work with it. I'm sure it does save lives.
 
There are a bunch of situations that I've been in where it's from the gas to a quick tap of the brake and right back to the gas.

I don't mean to sound critical of your driving, but how close do you follow other cars? If you follow the 2 second rule, then you have plenty of time to react to a situation without having to quickly tap the brake.
 
I don't mean to sound critical of your driving, but how close do you follow other cars? If you follow the 2 second rule, then you have plenty of time to react to a situation without having to quickly tap the brake.
that was kinda critical...thanks!

Country road, around a turn, and up a little incline with no other cars around, happened to me last night. I was hammering along and wanted to scrub some speed. The brake assist grabbed harder than I wanted and killed all my momentum. Kinda sucked.

Don't be critical and don't prejudge. If there are other cars around I DO NOT play with their lives! That is being a plain jacka$$, and there is no room for that. If I wanna put myself in a tight situation that is my deal and to be honest there is nothing anyone has a right to say, as soon as I involve another person or car then it's fair game.

And by the way...the two second rule isn't enough time at most speeds. If you have lightning fast reaction times, and a perfectly running machine, that is light, with big brakes... maybe, but most people don't have a reactio n times quick enough to deal with an issue only given 2 seconds. Not to be critical but you should leave yourself more time in traffic.
 
I use a 3 second rule on streets and 4 on the highway.

And try down shifting around that turn next time ;)

I'm surprised there are so many people so critical of my driving without knowing me or the situation. I was in 2nd gear at about 4500rpm...all I wanted to do was take it ot 3800 rpm to crest the hill...there was no gear to shift down too. When I say "scrub" speed, all I wanted was to bring it into a different part of the power band, it had nothing to do with stopping or slowing down. My original point was hat it took it as a problem and slowed me right down.
 
I'm surprised there are so many people so critical of my driving without knowing me or the situation. I was in 2nd gear at about 4500rpm...all I wanted to do was take it ot 3800 rpm to crest the hill...there was no gear to shift down too. When I say "scrub" speed, all I wanted was to bring it into a different part of the power band, it had nothing to do with stopping or slowing down. My original point was hat it took it as a problem and slowed me right down.
Who is being critical? It was a suggestion, nothing more. No one is telling you not to drive fast, so quit being so defensive.
 
most people did not push the brake pedal hard enough to get maximum braking

I think a lot of people freak out when the ABS hits too, and most let off a little, while in reality you need more braking force while the ABS is going off.
 
The trade off between absolute control and safety defaults to safety, which, at the end of the day, is the way it should be, since safety is vastly more important than the composure of the truck, it's driver or passengers.

What if, instead of a school bus you saw, it was a small child who ran onto the road in front of you? What if it were a darting elk? Or some moron in an oncoming car turning left in front of you?

No question, it's annoying when a machine at your command does not do precisely as you want it to. But hard or near emergency braking, and getting an electronic assist the odd time it's called upon, is a bit like insurance - better to have your whole life and rarely need it, than need for one rare second and not have it.

It's also something you can get used to with some practice, a little like some of the stability control settings in high-end sports cars that allow a little tail wagging, but not too much. Just takes some practise to learn the limits.

Don't forget, adoihcj, you're still in the learning curve of your truck, and I suspect the next time you're in a similar situation, you will know exactly how sensitive the pedal can be and will master the hard stop in the way that befits your many years of driving experience.

For those with less experience, however, the brake assist will no doubt save their asses, and their trucks, from considerable misery, not to mention expense.

Agree, safety should be the priority. I just know that if someone is following closely behind me, I will have missed the obstacle I'm braking for and then get rear-ended/whiplashed. Unless of course the person behind me is in a 4R as well ;)
 
I think a lot of people freak out when the ABS hits too, and most let off a little, while in reality you need more braking force while the ABS is going off.
I agree completely. I'm one of those old farts who learned to drive in snow long before ABS (got my learner's permit in 1975). I have found myself instinctively reducing brake pressure when ABS kicks in and the car starts to slide. It's a hard behavior to unlearn.
 
I agree completely. I'm one of those old farts who learned to drive in snow long before ABS (got my learner's permit in 1975). I have found myself instinctively reducing brake pressure when ABS kicks in and the car starts to slide. It's a hard behavior to unlearn.

Just like driving a Porsche 911 - when the ass starts to slide, the instinct is to lift, but in fact the best thing to do is nail the gas and throw the weight over the rear wheels. Very scary at speed, but you learn - or spin!
 
I've noticed that the ABS is very sensitive too, especially on wet roads. It works, but I think it is overkill in most cases!
 
I've noticed that the ABS is very sensitive too, especially on wet roads. It works, but I think it is overkill in most cases!
I think it is oversensitive on 4th gen as well. There have been more than a couple situations at low speed on a partly snow road where it lengthened braking distances by not locking up.
 
I hate this feature and wish it had an off button, its not doing what its supposed to if its applying more brake pressure than you are giving it. I frequently tap the brakes quickly in high traffic situation when other cars brake lights come on, because you cant tell in that split second how much the car in front of you is braking. The 4R goes into emergency stop situation, and releasing pressure partially from the brake does not get it out of this condition, so unless you come completely of the brake and reapply, it just grabs to full extent when you apply a little pressure again. So you come to a stop in a bucking bronco style, typically stopping way short of the car in front of you or way short of the line, because you didnt have room to completely come off the brake and then reapply.

Nice safety idea, badly calibrated and not user friendly.
My other vechicle also has this feature, but you'd never know its there because its triggers to apply maximum brake pressure are set at a higher threshold and when you back off the brake pedal you can control/moderate the brake pressure without coming all the way off the brake.
 
I hate this feature and wish it had an off button, its not doing what its supposed to if its applying more brake pressure than you are giving it. I frequently tap the brakes quickly in high traffic situation when other cars brake lights come on, because you cant tell in that split second how much the car in front of you is braking. The 4R goes into emergency stop situation, and releasing pressure partially from the brake does not get it out of this condition, so unless you come completely of the brake and reapply, it just grabs to full extent when you apply a little pressure again. So you come to a stop in a bucking bronco style, typically stopping way short of the car in front of you or way short of the line, because you didnt have room to completely come off the brake and then reapply.

Nice safety idea, badly calibrated and not user friendly.
My other vechicle also has this feature, but you'd never know its there because its triggers to apply maximum brake pressure are set at a higher threshold and when you back off the brake pedal you can control/moderate the brake pressure without coming all the way off the brake.

This is exactly what I'm talking about. I do not like how it's callibrated at all.
 
I just activated the 'panic braking' feature on my 4runner for the first time. Damn near launched me through the windshield. Was looking down for a minute and traffic stopped in front of me. The really annoying thing about it is that when the brakes suddenly go on full force your natural reaction is to let up on them, but then the panic braking thing disengages and you aren't pressing the brakes hard enough so you keep moving forward. Almost hit the car in front of me even though there was plenty of room because of this stupid braking 'feature'.
 
Its called the Brake Assist. In that giant textbook for an owners manual it says that when you brake in a panic situation (faster than normal switch from gas to brake, or quick press on break) it will send more power to the brakes...

i have noticed it too once...

Scared the crap out of me the 1st time. It's a trip how you don't need to press on the brake harder, but just switch pedals really fast.
lol, my poor dog went flying.
 
I think it's a good feature. The brakes on the 5th Gen are very powerful, some of the best stock brakes I've experienced- albeit they do feel and sound a little funny.

Bottom line- they can stop quickly when they are called upon to do so.
 
7 months with my 4Runner and 2 experiences like this... Nice to finally know what it is!

Little embarrassing when the tires chirp while braking a little hard in traffic because you took your eyes off the road for a sec. Pretty sweet feature though cause I never slammed the guy in front of me and ended up being sued for a "sore neck."
 
I've had it happen thrice. Two times it was unnecessary and startling but worked. The third time it was necessary and saved my arse.

This and the independently wheel actuated braking for stability control are really quite amazing and probably prevent some more serious crashes.
 

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