ABS on this truck is dangerous...

Nope, my pads are good. I know what you mean by the sweet spot though. I was experimenting with the ABS on my snow covered driveway today (1/4 mile long). I noticed that there seemed to be a point where I was getting some brake power applied to the wheels but would not let the ABS engage, just like you mentioned.

 

I wonder f you realized how close to the truth you were when you posted that. Only make it 5-10 kph.

If you read your owners manual, you will see that ABS will not activate until the vehicle reaches 10 kph and will deactivate when speed drops below 5 kph. (That's 3 and 6 mph respectively.)

When someone states that they are going incredibly slow and their ABS kicked in, I have to conclude that their incredibly slow is at least 3 and perhaps over 6 mph.

 

Citation?

I cannot imagine that ABS has not been tested extensively over a range of conditions from dry and sticky through slicker than snot. Your claim makes no sense at all from a product development standpoint, but I am willing to consider it if you can back it up.

 

You're specialist is probably referring to traction control. When you want to race a corvette - you turn the traction control off. In fact, there's 3 variations of settings you can choose from.

All vehicles have ABS.

 

I looked, couldn't find it and remain skeptical.

 

Not the referenced article, but similar.

http://www.canadiandriver.com/2005/01/25/the-dos-and-donts-of-anti-lock-brakes.htm

http://www.tc.gc.ca/eng/roadsafety/tp-tp13082-abs2_e-215.htm

 

http://news.yahoo.com/s/ap/20100204/ap_on_bi_ge/toyota_recall

Sounds like the Prius has the same problem as most of our trucks stopping on slippery or rough surfaces....

 

I agree ABS feels like a nuisance, but consider that it really only comes on when there is no traction. So while you had traction in the lot , the road had none, could be packed under fresh=slide, lots of variables.
Could be tires too, the best offroad MT tire isnt truly good for pack snow or ice,unless its severe weather rated/siped, and can still slide. Snow conditions change rapidly with traffic quantity, bridges, altitude, sanding/salting etc. Its not that the tires are bad, just not suited for pack snow/ice.
Going downhill in a traveled traffic lane will cause studded tires or snow tires to slide at times, gravity wins.
I do snow and ice plowing /road closures for the city, see all the tires fail on certain hills with no exceptions.Tehy make it up the hill, but later they go down and slide of the road.
Take no offense but the worst offenders are 4wd any make who say before they go down.." its a 4 wheeler and i have MT tires/AT tires", next big offender is the suburu that didnt make it either, in front of them.

p.s. ABS, is it claimed to actually stop shorter, or claimed to stop safely. If i'm not mistaken they focus on it stopping you safely

 

I have had no problem with my brakes .... so far.... but I don't like one thing is that the anti lock doesn't seem to work below 5 mph... I don't understand... I was told by a heavy equip Mechanic ( Ford lover ) that antilock brakes don't work below 5 or 10 mph.... WTF .... I work at a place where all day long heavy equip is going in and out of a driveway that is down hill to highway and every vehicle we have does exactly the same thing.... Seems to be slowing nicely down to about 5-10 mph and then locks the brakes and tries to slide out onto the highway....

 

I've had nothing but 4wd's since i've been driving and NOT ONE has had the braking issues this truck has. Not abilities, it's the system itself.

 

I had a problem that almost made me crap my pants. I was getting off the interstate, coming down the offramp. I drove over a cattle grate at the bottom while applying the brakes. ABS kicked in and I drove straight through the stop sign. Scared the crap out of me. Thank goodness it was at like 2am and there were no other cars around.

 

Not really, i have 07 purchased in end of 06. In winter I travel daily down the 30 degree slope covered in ice/snow and I dont get that problem. Sure when road ends up in pure ice there is little abs action but nothing dramatic. I also run stock tires

 

This thread has been played out. So many issues here, some solved, some remain... Others just defending their points of view.

 

Ok that my help. Apparently lookign at FSM trucks with electronic mambo jumboTRAC, VSC, Auto LSD, Dac And HAC have indeed ABS hookup to engine control module.
Trucks that dont have any of the above have straight abs.
Here is the hookup to ECU

 

Actually it is the opposite on my truck.

If I am going fast and cause the ABS to kick in it works as designed, I have reduced braking until I either come to a stop or the lack of traction is no longer a factor, but if I am going less then 10 mph and cause a ABS situation I lose brakes, it's as if I just pushed the clutch in with my foot off the brakes and I just coast.

Sure people will come in here and say "Dude ABS isn't a factor at those low of speeds" but it is on my truck and according to the dealer it is "Normal"

So I just say it's Normal Fucked Up

 

I only read about the first 100 or so posts and gave up after that, but here's my summary of this thread...

"My ABS is putting me in dangerous situations."

"It's not working right. You should take it to the dealer to get checked out."

"But I'm having problems with the ABS... it shouldn't be doing this."

"Take it to the dealer."

"But it activated on dry pavement."

"Take it to the dealer."

"But..."

"Why haven't you taken it to the dealer yet???"

"Because I'm having to defend myself against these accusations. And oh, by the way, my ABS is not working like it should."

 

Propjet, good summary. One important detail to add.

We learned that we could pop the ABS fuse out to disable the system.

Thanks to blackhawke88

 

I also have this problem.

And before anyone accuses me of having bad tires, I run BFG All Terrains in the summer and a dedicated ice radial with studs in the winter. Never any trouble in the summer except for very loose or muddy surfaces. In winter the system cause me all kinds of grief and mostly below 20 mph.

What really ticks me off is if I am driving down a street with the left two tires on dry pavement, and the two right tires on ice - the ABS still activates and increases my stopping distance significantly. Wanna argue? I regularly disable the ABS with the grey wire mod for the rear locker in such instances. I've done trials dozens of times and the truck ALWAYS stops quicker WITHOUT ABS.

The ABS shouldn't be able to be activated below 15 mph. The current cut off point is 5 mph I believe.