Auto braking being ridiculous

[22ohdenali]

Why are the systems on these soo sensitive? During the winter I was backing into the garage while it was snowing and it auto stopped me like 3-4 times. At first I thought it was my son opening the doors.

Then anytime I back into a parking spot with a curb stop it freaks out and will tap the brakes while the seat alerts are going nuts. Same thing if there was a snow pile. Even if I have my foot on the brake applying pressure it will still do it.

If I shut all the systems off I get all the stupid christmas lights lit on the dash.

Is anyone elses this sensitive?

 

[ChemEng]

i haven't even taken delivery yet so i don't have any direct info (not even sure if the Tahoe has this kind of breaking system)... but I had issues with my Honda Accord auto breaking with oncoming traffic... talk about scary.

I took it to the dealer and they "re-aimed" the sensor and its been great since. Might be worth asking them to re-calibrate the system?

 

[DenaliCountry]

Why are the systems on these soo sensitive? During the winter I was backing into the garage while it was snowing and it auto stopped me like 3-4 times. At first I thought it was my son opening the doors.

Then anytime I back into a parking spot with a curb stop it freaks out and will tap the brakes while the seat alerts are going nuts. Same thing if there was a snow pile. Even if I have my foot on the brake applying pressure it will still do it.

If I shut all the systems off I get all the stupid christmas lights lit on the dash.

Is anyone elses this sensitive?

I've got the same issue in reverse. Coming out of my garage or backing down the driveway it hammers the breaks and gives me a heart attack. Has happened a few times. If you push the parking sensor button it disables it for longer runs backing up and then hit the button again as you get close to obstacles you can see. I plan to take mine in and have it looked at but for now it's a workaround.

 

[WalleyeMikeIII]

As a plug for it, about a week into ownership, as I was getting used to the blind spots, was backing out of my driveway one morning. It slammed on the brakes in reverse for me, duplicating the heart attack @DenaliCountry refers to. I looked over my left shoulder in time to see a vehicle passing on the road. Net, it saved me a collision...

I too get a vibration in my rear and a beep as I back out of the garage, as it seems to detect the garage wall, and when the snow was piled up at end of driveway, same thing, but no actual hard brake applications, save the one time I mentioned above where it was needed. I seem to think the warning is less aggressive the slower I am going. How fast are you backing?

 

[DenaliCountry]

As a plug for it, about a week into ownership, as I was getting used to the blind spots, was backing out of my driveway one morning. It slammed on the brakes in reverse for me, duplicating the heart attack @DenaliCountry refers to. I looked over my left shoulder in time to see a vehicle passing on the road. Net, it saved me a collision...

I too get a vibration in my rear and a beep as I back out of the garage, as it seems to detect the garage wall, and when the snow was piled up at end of driveway, same thing, but no actual hard brake applications, save the one time I mentioned above where it was needed. I seem to think the warning is less aggressive the slower I am going. How fast are you backing?

The couple of times it's happened to me, one one of which was inching out of the garage and the other was back down the driveway at <5MPH. I agree the system is great to have, which is why I haven't turned it off. Just seems like the aim on the sensors is off or it is overly sensitive to things that are perceived as objects when they are not.

 

[R32driver]

Ours beeps/flashes/vibrates all the time as the system seems to see absolutely everything close to the vehicle but I’ve never experienced the auto braking. Had our ‘21 about 7 months now

 

[PaulGA]

Haven't had an issue yet with the Yukon, but my Acadia has freaked me out several times. We have a gravel driveway and every so often on a slight incline it'll go nuts and jam on the brakes. Happened to me going through a Drive-Thru lane too, no cars in front of me, just a concrete pad, it did it 2-3 times from the pay window to pickup window.

 

[Mooseman93]

Maybe it's the racecar driver in me, but I don't want my car to do anything I didn't command it to do. If I'm in a collision avoidance situation and my split second reaction is to mash the gas, I sure don't want my car slamming on the brakes at the same time! I understand there are different levels of drivers, and my wife would probably value a safety feature like that, but not me. I honestly trust myself more than a computer algorithm and a bunch of sensors.
Sorry, I'll go back to the NBS forum where I belong now.

 

[KVacek]

I hate ABS and traction control for that reason. I've been driving in snow and ice, 99% RWD except for the Suburban and AWD Yukon and a couple of kids FWD cars, since the early 60's. SCCA raced in my 20's. I can definitely stop better in rain or ice and snow than ABS. And traction control has scared me too many times in my Cobra. Pull out onto a highway quickly with somebody coming, no danger till the traction control decides I'm slipping a tire too much and cuts the power. That oncoming truck always gets way bigger really FAST. I don't enjoy things trying to outsmart me.

 

[Boatguy]

Of you have adaptive cruise control, hard braking on a freeway can happen. It happens, for example, if you are in a mild left hand turn, overtaking a truck in the lane to the right. All the sudden, the ACC thinks the truck is in your lane and hits the brakes, ******* off everyone behind you who think you brake checked them.

That is documented in the manual. My Yukon has been very well behaved—and helpful—in tight parking situations.

 

[SuspQt]

Of you have adaptive cruise control, hard braking on a freeway can happen. It happens, for example, if you are in a mild left hand turn, overtaking a truck in the lane to the right. All the sudden, the ACC thinks the truck is in your lane and hits the brakes, ******* off everyone behind you who think you brake checked them.

That is documented in the manual. My Yukon has been very well behaved—and helpful—in tight parking situations.

I’ve been experiencing this exact issue you describe in a 2012 Tahoe ppv. Although I don’t use the cc system. I’ve been leaning toward maybe a faulty abs wheel speed sensor. But I have no dash lights on other than an air bag light. No light appear on when it’s applying brake pressure but I have noticed at least once the dash lights did seem to either dim or die out briefly. All I know is it has a chance of happening if im both accelerating and switching lanes simultaneously. Frustrating as winters coming up and I’d love to solve this issue before than

 

[Fless]

I’ve been experiencing this exact issue you describe in a 2012 Tahoe ppv. Although I don’t use the cc system. I’ve been leaning toward maybe a faulty abs wheel speed sensor. But I have no dash lights on other than an air bag light. No light appear on when it’s applying brake pressure but I have noticed at least once the dash lights did seem to either dim or die out briefly. All I know is it has a chance of happening if im both accelerating and switching lanes simultaneously. Frustrating as winters coming up and I’d love to solve this issue before than

You might want to post your issue in the year forum that corresponds to your ride.

 

[Marky Dissod]

I hate ABS and traction control for that reason.
I've been driving in snow and ice, 99% RWD except for the Suburban and AWD Yukon and a couple of kids FWD cars, since the early 60's. SCCA raced in my 20's.
I can definitely stop better in rain or ice and snow than ABS. And traction control has scared me too many times in my Cobra.
Pull out onto a highway quickly with somebody coming, no danger till the traction control decides I'm slipping a tire too much and cuts the power.
That oncoming truck always gets way bigger really FAST.

I don't enjoy things trying to outsmart me.

Vast majority of ABS / Traction Control / Stability Control systems are designed by drivers that are NOT SCCA racers,
neither are they designed FOR SCCA racers. Toyota / Lexus systems particularly pyss me off so bad, I'll NEVER own one.

Remember that there was a time when ABS controllers could only unlock a stopped wheel;
they've been able to identify the wheel that slows down far too quickly for a couple decades now.

Also ABS was never designed / intended to maximize stopping power / minimize stopping distance.
ABS was designed / intended to prevent loss of steering during braking, sacrificing braking distance when 'necessary', which pyssys me off too.

Traction Control systems were a royal pain in the arse with physical-mech cable throttles. GM's Traction Control was nicknamed 'foot-fighter' by enthusiasts.
Obviously some electrical-signal wire throttles are better than others, not just for Traction Control.

Only two Traction Control / Stability Control systems ever impressed me:
Ford Mustang after 2010; it stayed off so long as both front wheels were pointed straight ahead - YES, for burnouts! -
and had far less intrusive Stability Control interventions that were noted by autocrossers & road racers as an improvement,
and
Porsche 911 had multiple threshold settings,
the SECOND most aggressive would only temporarily re-activate Stability Control if / when the ABS was in effect, and their ABS less intrusive too.

 

[jerry455]

The driver who is buying these vehicles do not drive them like the 2 "good" examples you have shown. The systems on this current generation truck work great. The average driver will get out of a lot of trouble and avoid trouble with these systems. Looking on your list of vehicles you are driving an antique truck. Those systems were very basic. I don't know why on this forum everybody comments about how they don't like these new generation of trucks and they don't even have one. The previous person who started this thread started it in 2022. It just got brought back to life. Reading the owners manual and learning about these systems on the owners truck will answer a lot of questions.

 

[Marky Dissod]

I don't know why on this forum everybody comments about how they don't like these new generation of trucks and they don't even have one.

To be specific, I was commenting on how I was less than impressed by the K2 & T1 generations' versions of ABS / TC / Stability Control.
No I don't own either, but I did test drive and drive them as a chauffeur. They've gotten better, but are still 'nanny-ingly intrusive'.
(Actually they remind of this forum's puerile word police, come to think of it.) Point is improvements should be made.

Reading the owners manual and learning about these systems on the owners truck will answer a lot of questions.

Test driving will always answer even more questions. I'll even do y'all one better, if you don't want to wait for snow / ice:
Bring some ArmorAll or whatever, your favorite tire sidewall shiner. Go to a safe place of your choosing, and paint your tread with some tire shiner.
Go test ABS / Traction Control / Stability Control.