what are the hardware differences between US and Euro models? Is it an ECU programming upgrade or is different hardware needed?

I believe our cars were supposed to have stop and go feature and I believe our adaptive cruise control can bring the car to a complete stop if so programmed.

 

I thought the Stop/Go was standard on all the '14 with ACC ?
It is one of the major reasons I wanted to upgrade from the '11.

 

It was initially announced as a MY14-feature but they took it back later on. Should be out on the MY15s if not sooner.

 

I don't think there is much difference in terms of hardware, I thinks it's more to do with software, but dnt quote me on that..

There were pre production mules tested in the US, but not sure if it was just for EU spec vehicles.. However my dealer said that stop and go will be available on next batch of vehicle, so it may apply to US vehicles too..

 

The ACC disengages at ~16 mph. A message on the EVIC says "ACC deactivated minimum speed" or something similar. (US model.)

I checked, and it's 15 mph, not 16.

 

The ACC disengages at ~16 mph. A message on the EVIC says "ACC deactivated minimum speed" or something similar. (US model.)

Yeah it disengages at a low speed, but I've been in a BMW that brings car to a full stop and it's excellent, the system worked really well.. And it will accelerate if traffic moves off swiftly.. Excellent technology Not sure if it's worth waiting for though...?

 

Just so we are clear on something:
stop and go and adaptive cruise control are 2 different technologies which may or may not work together.

Stop and Go is seen on most hybrid cars and it involves the stopping of the fossil fuel powered engine after the car has been stationary for some time, while in gear (drive). Once the gas pedal is pressed the engine comes to life and you can depart. This was touted for the 2014s but we did not get it in America.

Adaptive Cruise Control is the system that keeps the distance to the car ahead constant, the car will accelerate or brake the car on its own. We have that and yes it is wonderful, especially since for the 2014s, there is a related feature: Forward Collision Warning with Active Braking that makes use of the same sensors/hardware. Ours deactivates under 20 mph.

I could be wrong, but I think both stop and go as well as bringing the car to a complete stop is a matter of reprogramming not so much of hardware upgrades. But I could be wrong.

Stop and Go - fuel saver
ACC - safety feature

 

The fuel saver technology you're talking about is actually called "stop start" or "start stop".

Cruise control that comes to a complete stop automatically is called, by Chrysler, Adaptive cruise control with stop. Audi and other manufactures call it "Adaptive cruise with stop and go" BMW call it "Active cruise control with stop n' go"..

It's sound similar to "stop start" but it's different.

 

The ACC was supposed to be "FULL RANGE" same as the Mercedes. You set cruise and it can stop and go with traffic.

Mercedes also has a feature that turns off the motor at stop and instantly restarts which has nothing to do with the ACC.

I am surprised to hear that the full range speed control is not implemented. There is a summit in transit to a dealer I can test. I am interested to see what happened with this?

As for engine off and on, I didn't really like it much. Sure it saved a little fuel but when it isn't 65 degrees out it needs to restart to run heat or air pretty quickly. Seems like a lot of wear on the starter for a few dollars in fuel here and there. So I am glad CDJ is not currently doing this.

 

I cannot seem to find where I read about the new ACC, but it will take the vehicle to a complete stop then take off again when the car in front moves.

I noticed that the ACC is now called "Enhanced Adaptive Cruise Control (NH1)"
Does the Enhanced mean it has this new feature, or is it the same as the "11-"13's ACC that turns off under 30km/h?

Milous can you advise ?

 

I think even the Jeep website gets it wrong
2014 Jeep Grand Cherokee | SUV Safety & Security Features | Jeep

Probably much like the diesel marketing - too much hype yet as of a month ago, no EPA certification and not on sale.

This warning system will be appreciated by even the most attentive drivers. Approach another object too rapidly and the Forward Collision Warning<sup class="tooltip" title="">+</sup> (FCW) with Crash Mitigation alerts the driver with an audible and visual warning, and automatically engages the brakes if a collision is imminent. Plus, the Adaptive Cruise Control<sup class="tooltip" title="">+</sup> (ACC) automatically adjusts cruising speed to maintain a preset distance between you and the crowd.

Click the + sign by Adaptive Cruise Control at the link above. It reads ACC with Stop whereas the + sign by the FCC reveals that the system does not impact drive dynamics...which we know it does on the 2014s (limited braking)

 

Hmmm... well it will be a couple of weeks before I can try one with that feature. Maybe ask another user to try it out and see what the range is.

I too read that is was going to be "full range" but that statement seems to have been modified.

 

So crazy that the Europeans get all the real car Tech before North America

People there also get these advancements in entry level cars.

This feature should be in the 2014s.

Another reason I'm not going to trade my 2012.

 

So crazy that the Europeans get all the real car Tech before North America

People there also get these advancements in entry level cars.

This feature should be in the 2014s.

Another reason I'm not going to trade my 2012.

Haha now that is really funny Mercedes still doesn't have touch screen in their vehicles yet

 

I have the ACC and it brings the Jeep to a full stop and takes off again, this was on the highway where traffic had slowed then stopped then back to highway speed. I have only used it on the highway not around town. Is the new feature for around town traffic?

 

Nope, thanks for answering, that is exactly how it should work

 

No, you're not. Mine doesn't either. And the owner's manual also confirms that this is not how it's supposed to operate (shutting off below 15 mph). I'm not really sure why JoeD's Jeep will do this. Joe...you're in Massachusetts? And it's a U.S.-spec vehicle?

Tony

 

It came to a complete stop. I am in MA and it's a 2013. I had my foot ready to stop it though but didn't have to touch it.
I will do it again to make sure it's not a fluke but don't see how it would do it one day and not again

 

It came to a complete stop. I am in MA and it's a 2013. I had my foot ready to stop it though but didn't have to touch it.
I will do it again to make sure it's not a fluke but don't see how it would do it one day and not again

Maybe it's a fluke, because 2013 models defiantly don't have stop 'n go feature, only on 2014 model.. Or your jeep may be a one off

 

Was just out and had the message ACC disengages below 16 mph.

 

I can't see it slowing you down to 16mph from highway speeds then letting off the brake at 16mph, that sounds like an accident waiting to happen.

 

This is how they currently work. The new ones were supposed to be full range. Maybe your 2013 was a test bed.

 

In the US they are way behind. They want the driver to still maintain control, rather than the computers. Need to remove human error to decrease accidents (unless of course there is an EM pulse, in which case, we are all screwed)

 

I see those Google self-driving cars on the road almost every day. I saw them long before they were officially announced and kept wondering what the heck they were.

 

I am surprised that NOBODY can answer this question.
Does the current '14 have the ACC with Stop/Go ability ?
Surely someone with a summit can answer this simple question.

 

The 2014 will slow you down and once you get down to 15 miles per hour the ACC quits working and you are given a message to tell you this. Then it is up to you to manually stop the vehicle. If you do not apply the brakes yourself, you will hit the vehicle in front of you. If you are following traffic and do not go 15 miles per hour or slower, it will continue to follow the vehicle in front of you.

Imho this is not stop/go, but you can call it what you want.

 

So it is the same as the '11-'13 ACC that I have.
There is meant to be a revised one in the '14 that WILL STOP the car and then go once the traffic starts moving.

 

So it is the same as the '11-'13 ACC that I have.
There is meant to be a revised one in the '14 that WILL STOP the car and then go once the traffic starts moving.

Yes this is true. It is what I had initially read as well. It was called enhanced this year so not sure what the enhancement was?

 

I remember in the features and changes thread it was announced that FULL STOP and GO had been delayed to the 2015 model year which is now just 13.5 months away. (4.5 months down in an 18 month run of the MY14)... Proud of my math skills

 

Ok get you there but what is enhanced about is ACC over the old one :lol:

 

I think they are calling it enhanced because the 2013 didn't go down to 15mph but stopped a little higher

 

In the 2014's ACC works at 15 mph. This is from MY12 owners manual.

NOTE: Any chassis/suspension modifications to the
vehicle will effect the performance of the Adaptive Cruise
Control.
Activating Adaptive Cruise Control (ACC)
You can only activate ACC if the vehicle speed is above
20 mph (32 km/h).
When the system is turned on and in the READY state,
the Electronic Vehicle Information Center (EVIC) displays
“Adaptive Cruise Ready.”
When the system is OFF, the EVIC displays “Adaptive
Cruise Control Off.”
NOTE: You cannot enable ACC under the following
conditions:
• When in Four-Wheel Drive Low.
• When you apply the brakes.
• When the parking brake is set.
• When the automatic transmission is in PARK, REVERSE
or NEUTRAL.
• When pushing the RES + button without a previously
set speed in memory.

 

According to my 2014 manual, the ACC cannot be set below 20 mph. After activated it will automatically disengage below 15 mph.

Tony

 

Correct!

 

I have the 2014 Overland Summit. It does not "stop/go". ACC won't allow you to engage until you are at least 20 mph. It kicks off automatically between 15-16 mph. The collision detection still operates though and will "assistive brake" (scares the hell out of me sometimes!).

 

Adaptive Cruise Control-Plus (aka Adaptive Cruise Control w/Stop and Enhanced Adaptive Cruise Control) is significant for its capacity to bring the vehicle to a complete stop without driver intervention in certain conditions. Radar and video sensors identify the locations of vehicles traveling ahead of the vehicle. The sensors also help ensure the vehicles are separated by a gap determined by the driver. If the gap is dramatically breached, the ESC system can aggressively deploy the vehicle’s brakes to affect a full stop, even if the driver never touches the brake pedal. To resume travel, the driver need only press a button on the steering wheel or tap the accelerator pedal.

 

Um, okay which vehicles get this? My 2014 Overland shuts off at around 16 mph and tells me to take over. I have a new 2014 Overland on order. Will it have the "w/stop" option? Can I get this put on my older 2014?

 

Would love to be able to add this if possible, but not holding my breath.

 

Don't know yet if it will be able to be added to existing vehicles.