Jump to content

Recommended Posts

Posted
3 hours ago, Jeff and his Silverado said:

To answer JAshworth03 , my dealership said there was one other owner with the brake issue. I'm sorry, I don't believe him. I am not trusting of anything I am told at an auto dealership, be it while buying a new car or whilst it's in service. Just a lot of bad experiences, they lie.

Funny.  I was told the exact same.  One other person.  I’m just trying to figure out if it’s widespread or not

Posted

I'm currently deployed overseas but my wife just got our 2019 RST back from the dealership after a week.  She was driving and went to apply the brakes and the pedal went to the floor.  She said there was almost no braking at all.

 

The dealership replaced the left front brake wear sensor as you can see in the attachment.  They also told my wife did a software update.

 

Needless to say, how can anyone feel safe in one of these trucks. A software glitch causing loss of brakes is insane!

Truck brakesjpg.jpg

Posted
On 8/24/2019 at 5:57 PM, eppieguy said:

I was not giving a smart response, if you read back you’ll see that I agree this is a serious issue and I’ve had it as well. What I am saying is that people come here to research buying new trucks and new owners come in looking as well and they see “I lost my brakes” they are freaked out. Yes, we have lost power assist, gotten multiple errors on the dash and probably soiled some peoples shorts but you can stop the truck and we haven’t “Lost the brakes” which would mean you cannot stop until you hit something or coasted to a stop. As I’ve said in prior posts I’m in no way downplaying this issue as it is a serious issue but if we “Lost the brakes” there would be a big recall, not a TSB for software update and possibly another part (I forgot forget what it was). You sir have a wonderful day! 

Wow, you are absolutely unbelievable.  I can't tell if you're a GM employee or just a fanboy. You repeatedly downplayed many posters comments about a potentially lethal issue with these trucks. For the average consumer in a high traffic situation it isn't going to make a difference if the brakes have failed at the 100% point or the 10% point. The only thing you are accomplishing is alienating good folks who have experienced a BRAKE FAILURE. My wife almost crashed into an intersection last week full of 60 mph traffic.  If several of the vehicles hadn't swerved when the truck entered the intersection she may not have survived it.  Would your answer be, but you still had 10% left? 

Posted
2 hours ago, Rob41 said:

Wow, you are absolutely unbelievable.  I can't tell if you're a GM employee or just a fanboy. You repeatedly downplayed many posters comments about a potentially lethal issue with these trucks. For the average consumer in a high traffic situation it isn't going to make a difference if the brakes have failed at the 100% point or the 10% point. The only thing you are accomplishing is alienating good folks who have experienced a BRAKE FAILURE. My wife almost crashed into an intersection last week full of 60 mph traffic.  If several of the vehicles hadn't swerved when the truck entered the intersection she may not have survived it.  Would your answer be, but you still had 10% left? 

I completely agree with you. I was in a parking lot when mine failed and although it was at very low speeds it was terrifying. My 12 year old will not get back in my truck and I don't blame her. I can't imagine brake failure at highway speeds!! Some have said "well most of these are failing at low speeds." Okay, so slowly rolling over a child in the crosswalk of my child's school is far more acceptable! Ugh!! Brake failure is NEVER ACCEPTABLE! The really unfortunate thing is that a lot of people would not know to downshift, or have time for that matter, to downshift and try to let the transmission slow the vehicle in a time of failure! Hoping that GM gets this figured out before someone gets killed if they haven't already!

Posted (edited)
11 hours ago, Rob41 said:

I'm currently deployed overseas but my wife just got our 2019 RST back from the dealership after a week.  She was driving and went to apply the brakes and the pedal went to the floor.  She said there was almost no braking at all.

 

The dealership replaced the left front brake wear sensor as you can see in the attachment.  They also told my wife did a software update.

 

Needless to say, how can anyone feel safe in one of these trucks. A software glitch causing loss of brakes is insane!

Truck brakesjpg.jpg

Rob, you said your wife got the RST back from the dealership before this incident. What did the Dealer do to the RST while at the dealer? If they did the recalls during this time, many owners are experiencing a loss of brakes with the idiot lights after a period of time. Most complaints point to starting the vehicle remotely with the Chevy or GMC MyApp which causes the failure for some unknown software reason. There have been some customers report a loss of brakes without using the MyApp. So in this case DO NOT USE the APP. Losing the wear sensor will not cause this problem, but the broken wire might be something. Normally after the loss of brakes and the vehicle is shut off, the error condition will clear usually with only the CEL on. If the loss of brakes happen again, call Onstar or the dealer to get it towed to the dealer and line up a loaner. Keep all the documentation, emails, receipts, phone calls or anything that you can use if this situation goes south ie Lemon Law Buyback. By the Way Eppieguy has been on here for a long time and he helps out many owners and he was in no way trying to downplay this situation.

Edited by Rocz3cqg
Posted

I know this is a serious issue, and am no way trying to down play it, I would love to see numbers:

- how many lost their brakes WITHOUT  getting the brake recall and without starting the truck with the APP. 

- how many have lost their brakes getting the recall (with not prior issues) and NOT using the APP to start the truck. 
- how many have lost their brakes getting the recall (with not prior issues) and starting it with the app. 

Posted

Here is a spreadsheet of mostly everyone from this forum [plus some from Facebook] and I tried to capture everything someone said about their experience. Just click on the pic and use the Magnifier to expand to read.

  • Like 1
Posted

As I posted earlier, maybe in a different thread, I started the Silverado LTZ, got the total system brake failure (max speed 62 mph) error, at the same time that I was pulling out of my driveway. I almost got whacked. I finally reversed back up onto my driveway and had it towed. Important to note: they just had the car the week before working on the brake pad wear sensor issue, which was showing 64% on the new truck. I have the truck back and it’s behaved for a week. Scary - we’ll see. Still nobody from Chevy reached  our to me 

Posted
On 1/10/2020 at 1:02 PM, RadCopperND said:

Has it happened again since? Both times my 2019 LTZ did it, was when i used my phone to start the truck. Never had an issue with my app starting the truck until the dealing performed the brake recall. Been driving a loaner truck for 3 weeks!

Not yet, fingers crossed. My lane keep and associated features are still bricked, but the brakes have held up so far.

Posted
4 hours ago, Rocz3cqg said:

image.thumb.png.888716650fadac6023e6eb6ebaf84484.png

Great work!  Ive seen this on a few in my province.  Winnipeg Manitoba Canada. its even worse when you have ice covered roads like we have here. 

Posted
10 hours ago, Rocz3cqg said:

Here is a spreadsheet of mostly everyone from this forum [plus some from Facebook] and I tried to capture everything someone said about their experience. Just click on the pic and use the Magnifier to expand to read.

That is great work. Over 100 people on forums and FB having brake failure. Scary since this represents only a small fraction of the overall owners.

Posted

If GM knows the app is causing the problem than you would think GM would dissable the app for the time being until they work the bugs out! I guess that $14.99 is too important to them. Lol 

 

I have been following this issue since I had the recall done (12-19-2019) to my 19 elevation. I have not had any of the problems you guys have had (knock on wood). I also have not used the gmc app to start the truck either. I have only used the fob or the push button in the truck. After reading these issues I will be certain to not use the app.

Posted

Whelp, the truck relapsed last night.  I have been using the app to remote start the truck since I got it back over a week ago and no issues.  Last night used the app and when we got in the truck I noticed the CEL was luminated prior to pushing the start button.  Once the truck was turned on, all the warning messages began popping up.  Restarted twice and the brakes reset and was able to drive home.   Will be contacting the dealer on Monday.  

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • 10 Ford and Chevy engines proven to reach 300,000 miles   You may note a common 3K OCI on this list of gas motors. I skipped over the diesels. Dh'O. 
    • Thanks newdude!  By the time manual selection is needed, I'm probably too much of a control-freak to depend on the transmission sensing braking to activate automatic downshifting.  I would be anticipating the situation and already be manually downshifting.   This truck replaced a 2004.5 LLY diesel with the Allison 5-speed.  Putting it in T/H made noticeable differences (when the torque converter locked, upshift points, downshift behavior).  On this 2024 gasser with the 10L1000 I haven't been able to detect much, if any, difference.  Ok, I can never tell now when the torque converter locks up.  But I also don't notice differences in shifting.  For downhills, I've probably already manually downshifted by then anyway.  Since it's also more awkward (than the 2004.5) to engage/disengage I don't even bother.  Or maybe it doesn't really matter with just a 3k lb. camper in the bed?   Thanks also for the list of reasons the charging system might select various voltages.  However, what I am seeing doesn't fall into any of those categories.  It very definitely, and very consistently, rises after coasting/braking.  Maybe not immediately, but not very long after coasting/braking.  Very consistently drops voltage when no longer coasting/braking.  It might also be interacting with the camper battery charging (I might disconnect the camper and see if it changes the charging behavior).  I also need to recheck turning on headlights for when I want to force it to charge the camper.   Another JR, in June I converted the camper to LiFePO4.  Since it's not a good idea to try to charge lithiums directly using truck, I installed a Victron Orion XS DC-DC charger (which BTW is AMAZING!!).  Being cheap, I only had to buy that one item (besides the battery, of course) to do the conversion.  The camper OEM 120v battery charger (only 19 years old and works perfectly) and the truck feed the input to the DC-DC charger (not at the same time).  But I didn't want the camper charger feeding back to the truck so I kept the old separator.  I considered replacing the separator with a 30amp diode but that means more work and might add another 1/2 volt drop.  One thing that surprised me was the voltage drop over the long 10awg wire run, so I can only charge smoothly at 8 amps (because the DC-DC charger is completely configurable).  Another reason I don't want an added voltage drop with the diode.  I might also be a little lazy but all this work is being done under the sink with a small cabinet opening.    
    • apparently CA smog is (or at least was)  checking that the vehicle is using the oem and/or a ca smog approved tune, so I expect you'll fail inspection doing it.
    • yes, leaking exhaust will mess up o2 sensor readings, which in turn messes up fuel trims.
    • 286,740 Mile Services   8/6/2026   New AC Compressor. Refrigerant oil and dye, evacuate and charge system.  New exhaust system from cat back.  New Iridium plugs plus replace #3 coil Repair/rewire headlamp wiring (passenger side) and replace all forward bulbs. Polish lenses of both assemblies.  Pull rear rotors, clean and adjust parking assembly. Inspect, clean and grease front calipers. Check pads and shoes.  4 wheel power bleed of brake system. Dot 4 Reset idle speed 50 rpm higher New Serpentine belt.    Will need new pads in the rear in about 5K more miles.    Tax Title and License out the door just short of a grand.    AC clutch had bitten the dust. 1 year warranty on the pick and save replacement. Thing will make a Polar Bear cry Uncle.  He spent quite some time on the wiring. It was in the harness and he does nothing half. I got off cheap. I have considerable more light down the road. Sylvania Silver Star replacements.  Gas seal between the porcelain and shell of plug #3 was blown, cooked the coil. That was the cold miss.  Love the new exhaust. I can sneak into the neighborhood again.  Nice to have a working parking brake again. Belle Tire never got it done. That was disappointing.    This was one of her bigger bills and still way cheaper than a payment even given the oil consumption. This thing cost me under a hundred a month in repairs and normal routine costs. What is my incentive to replace it? 🤔           
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...