Maybe my brain isn't working but that doesn't sound like anything has went wrong.
How close did you get to the car in front? 30m isn't that close or much to be panicking about.

 

It was working correctly to slow us to a stop at the distance I had set. Then suddenly the radar lost track of the car in front (which hadn't moved) so the system thought the road was completely clear and it applied full acceleration. If I hadn't braked quickly we would have slammed into it.

 

It's worth getting it checked. I've never faced this.

 

Does this for me, known thing

 

Was the vehicle in front stationary at the time? You do know ACC will quite happily run you into the rear of parked cars? It only tracks moving vehicles.

 

Was the vehicle in front stationary at the time? You do know ACC will quite happily run you into the rear of parked cars? It only tracks moving vehicles.

Stationary, or near enough to. Might have been staring to crawl forward again at the point we stopped.

I find it hard to believe that it only tracks moving vehicles, because Traffic Jam Assist (which I now have working) is basically the same thing. And there's front assist which is not supposed to let you accelerate into anything either.

And this is the first time I've seen anything - stationary or otherwise - disappear like that from the assist view screen in between the dials.. Sos far as I'm concerned it must be a glitch. Hopefully one that never repeats!

I did mention it when I took it back to have TJA enabled the other day but they can't really fault find on a one-off spurious event.

I guess my point is for Kodiaq owners is always keep your foot near the brake with ACC or TJA and never divert your attention from the road!

 

Yes, ACC was never meant to replace your vigil while driving.

 

Was the vehicle in front stationary at the time? You do know ACC will quite happily run you into the rear of parked cars? It only tracks moving vehicles.

Stationary, or near enough to. Might have been staring to crawl forward again at the point we stopped.

I find it hard to believe that it only tracks moving vehicles, because Traffic Jam Assist (which I now have working) is basically the same thing. And there's front assist which is not supposed to let you accelerate into anything either.

And this is the first time I've seen anything - stationary or otherwise - disappear like that from the assist view screen in between the dials.. Sos far as I'm concerned it must be a glitch. Hopefully one that never repeats!

I did mention it when I took it back to have TJA enabled the other day but they can't really fault find on a one-off spurious event.

I guess my point is for Kodiaq owners is always keep your foot near the brake with ACC or TJA and never divert your attention from the road!

I would suggest reading the manual. If the car dived in to the gap then hit the brakes and stopped the ACC is no longer tracking the moving vehicle it was before, and it most certainly does not track a stationary object. And TJA does not track stationary objects either. The only thing that would stop you running into a stationary object is Emergency Assist.

 

Sorry if I wasn't clear here - but it was actually tracking this car in front properly and I could see that it was by glancing at the assistance info display in front of me. The car in front slowed, we slowed and came to near stopping. Then suddenly tracking of this car was lost and ACC thought the coast was clear so applied full acceleration with little time for me to react before disaster - so I believe that what happened was a failure of the tracking and the automatic stopping and starting (decelerate to a standstill) feature that is built into the Kodiaq's ACC.

Yes the system isn't perfect and it warns you about that in the manual, but in such close quarters to the car in front it shouldn't do what it did. Perhaps even apply the acceleration a little more gently as I had only just slowed to a crawl due to a traffic jam? If I hadn't intervened in time I doubt whether front assist would have helped either because doesn't it use the same radar?

 

May be nothing to do with adaptive cruise control. So far with my Kodiaq I have not had a problem with cruise control, neither did I have a problem with my last car a Vauxhall. Prior to that I had two Skoda Octavia's. The first was never a problem but the second one nearly always gave a problem. When I switched the cruise control on like you my car would accelerate at a high rate of knots and I was then having to switch it off super quick before any accident occurred. It did not always occur but was an intermittent fault. I took it in on a couple of occasions but nothing was rectified on it and it was for that reason that I decided never to use it again.

 

Not a big fan of people using clickbait exaggerated titles. If you were at a complete stop 30m behind the car in front of you then the there is no way your car could have gained enough speed to kill you even if it crashed into the back of the other car, so please don't exaggerate.

According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA.

If it did, in fact, brought you to a complete stop 30m from the car in front, then it may have done so due to erroneously detecting a car when there wasn't (i.e: a false positive sensor reading). Because TJA will not keep anywhere close to a 30m gap in traffic (that's almost 7 car lengths!!). The reason why it eventually started moving again (before the car in front moved) is probably because it detected that there was no car right in front of it (i.e: the computer once again started getting accurate sensor readings). If you hadn't braked manually, the car would have slowed down once it came close enough to the car in front. You also have AEB function as a backup so I don't think you were ever in any danger. Your TJA probably did malfunction, but not the way you think it did, it falsely detected a car when there wasn't and stopped early, NOT the other way around.

 

Not a big fan of people using clickbait exaggerated titles. If you were at a complete stop 30m behind the car in front of you then the there is no way your car could have gained enough speed to kill you even if it crashed into the back of the other car, so please don't exaggerate.

According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA.

If it did, in fact, brought you to a complete stop 30m from the car in front, then it may have done so due to erroneously detecting a car when there wasn't (i.e: a false positive sensor reading). Because TJA will not keep anywhere close to a 30m gap in traffic (that's almost 7 car lengths!!). The reason why it eventually started moving again (before the car in front moved) is probably because it detected that there was no car right in front of it (i.e: the computer once again started getting accurate sensor readings). If you hadn't braked manually, the car would have slowed down once it came close enough to the car in front. You also have AEB function as a backup so I don't think you were ever in any danger. Your TJA probably did malfunction, but not the way you think it did, it falsely detected a car when there wasn't and stopped early, NOT the other way around.

ACC works at all speeds and will start from zero (great for crawling traffic). You can start stop start stop start stop etc with ACC without even touching the gas. You're going to tell me that's actually TJA instead but my car isn't even equipped with it.

 

Not a big fan of people using clickbait exaggerated titles. If you were at a complete stop 30m behind the car in front of you then the there is no way your car could have gained enough speed to kill you even if it crashed into the back of the other car, so please don't exaggerate.

According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA.

If it did, in fact, brought you to a complete stop 30m from the car in front, then it may have done so due to erroneously detecting a car when there wasn't (i.e: a false positive sensor reading). Because TJA will not keep anywhere close to a 30m gap in traffic (that's almost 7 car lengths!!). The reason why it eventually started moving again (before the car in front moved) is probably because it detected that there was no car right in front of it (i.e: the computer once again started getting accurate sensor readings). If you hadn't braked manually, the car would have slowed down once it came close enough to the car in front. You also have AEB function as a backup so I don't think you were ever in any danger. Your TJA probably did malfunction, but not the way you think it did, it falsely detected a car when there wasn't and stopped early, NOT the other way around.

ACC works at all speeds and will start from zero (great for crawling traffic). You can start stop start stop start stop etc with ACC without even touching the gas. You're going to tell me that's actually TJA instead but my car isn't even equipped with it.

Nearly! In all honesty thats just ACC. TJA would mean that it would be keeping itself within the lines at speeds under 38mph too!

 

Not a big fan of people using clickbait exaggerated titles. If you were at a complete stop 30m behind the car in front of you then the there is no way your car could have gained enough speed to kill you even if it crashed into the back of the other car, so please don't exaggerate.

According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA.

If it did, in fact, brought you to a complete stop 30m from the car in front, then it may have done so due to erroneously detecting a car when there wasn't (i.e: a false positive sensor reading). Because TJA will not keep anywhere close to a 30m gap in traffic (that's almost 7 car lengths!!). The reason why it eventually started moving again (before the car in front moved) is probably because it detected that there was no car right in front of it (i.e: the computer once again started getting accurate sensor readings). If you hadn't braked manually, the car would have slowed down once it came close enough to the car in front. You also have AEB function as a backup so I don't think you were ever in any danger. Your TJA probably did malfunction, but not the way you think it did, it falsely detected a car when there wasn't and stopped early, NOT the other way around.

ACC works at all speeds and will start from zero (great for crawling traffic). You can start stop start stop start stop etc with ACC without even touching the gas. You're going to tell me that's actually TJA instead but my car isn't even equipped with it.

Nearly! In all honesty thats just ACC. TJA would mean that it would be keeping itself within the lines at speeds under 38mph too!

I know that, but the dude I quoted doesn't seem to.

To quote "According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA."

 

ACC works at all speeds and will start from zero (great for crawling traffic). You can start stop start stop start stop etc with ACC without even touching the gas. You're going to tell me that's actually TJA instead but my car isn't even equipped with it.

Nearly! In all honesty thats just ACC. TJA would mean that it would be keeping itself within the lines at speeds under 38mph too!

Skoda says ACC works at speeds between 30 and 210kmph, and over here they say TJA works in conjunction with ACC to in traffic jams and stop-and-go traffic. To me that means TJA is what allows the car to operate at lower speeds especially in stop and go traffic.

Up to your interpretation, anyhow, coming back to the discussion at hand, whatever assistive technology was in operation at the time (ACC or TJA), I don't think OP was in any life-threatening situation.

Edited: typo

 

(Fixed)

 

Oh dear, I'm getting confused ...

Phoenix doesn't think the OP was not in any life-threatening situation ... so presumably thinks he WAS??

My brain hurts.

Fixed

 

ACC works at all speeds and will start from zero (great for crawling traffic). You can start stop start stop start stop etc with ACC without even touching the gas. You're going to tell me that's actually TJA instead but my car isn't even equipped with it.

Nearly! In all honesty thats just ACC. TJA would mean that it would be keeping itself within the lines at speeds under 38mph too!

Skoda says ACC works at speeds between 30 and 210kmph, and over here they say TJA works in conjunction with ACC to in traffic jams and stop-and-go traffic. To me that means TJA is what allows the car to operate at lower speeds especially in stop and go traffic.

Up to your interpretation, anyhow, coming back to the discussion at hand, whatever assistive technology was in operation at the time (ACC or TJA), I don't think OP was in any life-threatening situation.

Edited: typo

It's not really up for interpretation at all. It's ACC that controls the throttle and it works at all speeds. TJA is just a rehashed made up term to make people with cars that also have Lane Assist think they're getting something extra that they're not.

 

According to Skoda ACC works at speeds over 30kmph, so if you were driving in slow traffic and you were brought to a complete stop, then technically it was not ACC that was controlling your car instead TJA.

Absolute rubbish.

ACC will slow your car down to a standstill, and start you off again when the traffic in front moves off again. That is nothing to do with TJA. It is called Stop/Go or something like that, can't be bothered looking it up. ACC does not behave any differently on a Kodiaq if you have TJA or not.

All TJA does is enable LA below 65km/h under certain circumstances - ACC active, Adaptive Lane Guidance enabled, DSG etc.

 

It's not really up for interpretation at all. It's ACC that controls the throttle and it works at all speeds. TJA is just a rehashed made up term to make people with cars that also have Lane Assist think they're getting something extra that they're not.

Almost.

You are correct about ACC but not TJA.

Just because you have LA does not mean you have TJA, you can have DSG, ACC, LA and not have TJA. In fact, the only way to get TJA now on a Kodiaq is to buy the Assistance Pack, if you specify ACC and LA as separate items you will not have TJA. Fact.

 

Very similar to the OP, I have had a similar experience with ACC.

Quite happily following another vehicle with ACC enabled at 50mph ish on a dual carriageway, ACC set at 60mph. Vehicle in front very suddenly pulls in to the outside lane, leaving me heading at 50mph towards a stationary car at the back of a queue of traffic. ACC did not pick up that this vehicle was there and was quite happily accelerating - but this is exactly as the system is designed and it would have been entirely my fault if I had run in to the back of a stationary car. I didn't risk getting close enough to see if Emergency Assist would have stopped me

 

It's not really up for interpretation at all. It's ACC that controls the throttle and it works at all speeds. TJA is just a rehashed made up term to make people with cars that also have Lane Assist think they're getting something extra that they're not.

Almost.

You are correct about ACC but not TJA.

Just because you have LA does not mean you have TJA, you can have DSG, ACC, LA and not have TJA. In fact, the only way to get TJA now on a Kodiaq is to buy the Assistance Pack, if you specify ACC and LA as separate items you will not have TJA. Fact.

Of course. It's still a rehashed repackaged name for the combination though, surely? I'm struggling to see it's worth to be honest, considering how effortless ACC makes traffic queues on own.

 

It's not really up for interpretation at all. It's ACC that controls the throttle and it works at all speeds. TJA is just a rehashed made up term to make people with cars that also have Lane Assist think they're getting something extra that they're not.

Almost.

You are correct about ACC but not TJA.

Just because you have LA does not mean you have TJA, you can have DSG, ACC, LA and not have TJA. In fact, the only way to get TJA now on a Kodiaq is to buy the Assistance Pack, if you specify ACC and LA as separate items you will not have TJA. Fact.

Of course. It's still a rehashed repackaged name for the combination though, surely? I'm struggling to see it's worth to be honest, considering how effortless ACC makes traffic queues on own.

All it does is keep LA active below 65km/h, so in effect you don't need to steer in traffic jams, you can keep your hands off of the wheel and only when it hits about 20km/h does it warn you to take over steering control. At the end of the day, as part of the Assistance Pack it is a £30 option over and above the price of just adding ACC to an Edition (which already has all of the other components of the Assistance Pack).

 

Driving down the freeway on the weekend with ACC set to 101. I catch up to a car in the right lane doing 94 and my speed drops to 94 as well. This normal? Why would my speed drop even if the other car isn't in my lane?

I was excited to use ACC but know I'm having my doubts. I can see why people have near accidents with it. Personally at the moment I don't trust and I don't think the technology is smart enough yet.

 

The manual uses odd language, but basically says the ACC won't let you undertake a car. Sometimes, but not always.