General Motors has started a Customer Satisfaction Campaign to fix certain examples of the 2021 Chevy Silverado 1500 and GMC Sierra 1500 that may have been equipped with faulty brake boost assemblies.
The problem: vehicles involved in this Customer Satisfaction Campaign may have left the factory equipped with faulty eBoost brake unit assemblies.
The hazards: vehicles equipped with these brake boost assemblies may experience function issues over time, based on feedback received from the supplier concerning the condition of the assemblies. This can affect the vehicle’s braking performance, which may increase the risk of a crash.
The fix: dealers are instructed to replace the eBoost brake unit assembly in affected vehicles. Repair parts listed in the relevant service bulletin include the brake master cylinder, threadlocker and brake fluid. Dealers are encouraged not to order relevant repair parts for this Customer Satisfaction Campaign as shelf stock due to the limited initial parts availability.
Affected vehicles:
Number of affected vehicles: a total of 23 vehicles are affected by this problem.
Next steps: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. Owners who have questions regarding this Customer Satisfaction Campaign can use the contact information below to reach out to a Chevrolet or GMC customer service rep. It’s worth noting that this is a Customer Satisfaction Campaign and not a safety recall and is thus not being handled by the National Highway Traffic Safety Administration (NHTSA), but rather GM directly.
Contacts:
- GM CSP number: N202324120
- Chevrolet Customer Service: 1-800-222-1020
- GMC Customer Service: 1-800-462-8782
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Comments
What is the issue with the DEF wiring harness over heating, I have 3500 HD 2020 Duramax. GM don’t have any part to repair this problem. And if we don’t have spare parts we have to park are truck and not able to use it.
Thank you
Is my 2021 Silverado 1500 RST Z71 one of them that need the eBoost brake fixed??
Easiest way if you have the subscription: press the OnStar button and ask. Otherwise, type your VIN into the GM recall website.
According to this article, it affects only 23 units, out of probably 50,000, so the chances that it affects your truck are extremely thin. Just saying.
Hey it beats the issue Hyundai had with brake oil dripping on electric wires and causing fires…at least GM owns up and recalls it…but you never hear about all the problems Hyundai and Kia have! Just saying 😎
DETROIT — Korean automakers Hyundai and Kia are recalling over 600,000 vehicles in the U.S. and Canada to fix a brake fluid leak that could cause engine fires.
The recalls cover more than 440,000 Kia Optima midsize sedans from 2013 through 2015 and Kia Sorento SUVs from 2014 and 2015. Also covered are 203,000 Hyundai Santa Fe SUVs from 2013 to 2015
The affiliated automakers say brake fluid can leak inside a hydraulic control unit for the anti-lock brakes, possibly causing an electrical short that can lead to fires.
Kia’s recall will start Oct. 15, while Hyundai’s will start Oct. 23. Dealers for both companies will inspect the control units for leaks and replace them if needed at no cost to owners.
FILE- This combination of file photos shows the logo of Kia Motors during an unveiling ceremony on Dec. 13, 2017, in Seoul, South Korea, top, and a Hyundai logo on the side of a showroom on April 15, 2018, in the south Denver suburb of Littleton, Colo., bottom. The Korean automakers are recalling over 591,000 vehicles in the U.S. to fix a brake fluid leak that could cause engine fires.
FILE- This combination of file photos shows the logo of Kia Motors during an unveiling ceremony on Dec. 13, 2017, in Seoul, South Korea, top, and a Hyundai logo on the side of a showroom on April 15, 2018, in the south Denver suburb of Littleton, Colo., bottom. The Korean automakers are recalling over 591,000 vehicles in the U.S. to fix a brake fluid leak that could cause engine fires. (Associated Press)
In company documents posted Thursday by U.S. safety regulators, Hyundai said it had 15 reports of engine fires caused by the fluid leaks, while Kia said it had eight. Hyundai said it’s not aware of any injuries, and Kia said it had none.
Hyundai said in a statement that there’s no need to park vehicles outdoors before the problem is fixed, but if the anti-lock brake warning light comes on, owners should not drive their vehicles and should contact a dealer. They also should disconnect the 12-volt battery by removing the positive cable, the company said.
Hyundai documents said the company received its first complaint about an engine fire in a 2014 Santa Fe in April of 2018, and it started an investigation. Kia began investigating after getting a complaint of a melted control unit in a 2015 Sorento last February.
The recalls are the latest in a series of engine fire problems that have plagued the two automakers and have touched off investigations by the U.S. National Highway Traffic Safety Administration.
In February, Hyundai recalled nearly 430,000 small cars for a similar but apparently unrelated problem. The company said water can get into the antilock brake computer, cause an electrical short and possibly an engine fire. That recall covered certain 2006 through 2011 Elantra and 2007 through 2011 Elantra Touring vehicles.
The company said the electrical short could cause a fire even when the cars are turned off.
Hyundai said the latest recall is not related to the previous recalls or the U.S. investigations. The company said it monitors safety concerns, including non-collision fires “and acts swiftly to recall any vehicles with safety related defects.”
In April of 2019, NHTSA opened two new investigations into fires involving Hyundai and Kia vehicles after getting complaints of more than 3,100 fires and 103 injuries.
The agency granted a petition seeking the investigations by the nonprofit Center for Auto Safety, a consumer advocacy group.
The investigations, one for Hyundai and the other for Kia, cover non-crash fires in almost 3 million vehicles from the affiliated automakers. The investigations include the 2011 through 2014 Hyundai Sonata and Santa Fe, the 2011 through 2014 Kia Optima and Sorento, and the 2010 through 2015 Kia Soul. The complaints came from consumers and from data provided by both automakers.
NHTSA had previously said it would incorporate the noncrash fires into a 2017 investigation that examined recalls of Hyundai and Kia vehicles for engine failures. It opened the new probes “based on the agency’s analysis of information received from multiple manufacturers, consumer complaints and other sources.”
Engine failure and fire problems with Hyundais and Kias have affected more than 6 million vehicles since 2015, according to NHTSA documents.
Just in case you don’t believe me! 👍
This just happened on my friends 2021 Silverado. Was coming up to an intersection to make a left turn and went to press the brake pedal to slow down for the turn. Pedal went all the way to the floor and the truck wasn’t slowing down much at all. Multiple brake system warnings and lights came on the dash along with the check engine light. Dealer replaced the brake system control module and said it’s good to go. Maybe it is, maybe it’s not. 2 recalls pertaining to this exact issue and 1 “customer satisfaction campaign” have already been put out, none of which applied to his truck according to the VIN recall checker on GM’s website. If the problem has been figured out and fixed, then it wouldn’t still be occuring. This is a MAJOR safety concern. And this situation is exactly why the emergency brake on vehicles is an all mechanical system that allows the driver to quickly and directly be able to apply the vehicles brakes. It’s a reliable and dependable system that’s been implemented for over a century. And this is a prime example of why vehicles still need to have one onboard. This vehicle doesn’t have an emergency brake. There was an emergency in which neither the vehicles primary brakes or “emergency brake” were functioning properly and able to slow down the vehicle. The little “emergency brake” button was more worthless than the main brakes that failed to do their job on this truck with less than 5,000 miles because so far, this truck’s emergency brake system has worked 0% of the time it’s been needed. This isn’t some engine misfire or sunvisor defect or Bluetooth pairing problem, this is an out of nowhere total brake system failure. This is not good.
I bought a new GMC at4 the end of June 2021 it now has 3700 miles on it and it was in for an engine misfire with less than 200 miles, and just today for an antilock brake malfunction. Last week I drove the truck approximately 150 miles on Wednesday, got up Thursday drove down my street to the stop sign went to apply the brakes with a loud bang and all the lights on my dash lit up like a Christmas tree finished my short trip to work with what felt like manual brakes. I immediately hooked up code reader and pulled P25A2 brake system control module code. I started the truck back up and drove it home since I couldn’t get into the dealer until today. I didn’t drive it all weekend and today it was fine no lights not speed limited to 62 or anything. I kept my appointment and told them I wanted it checked for any software updates since it mysteriously disappeared. I was informed it needs a new master cylinder and it is on national back order. they let me take the truck. If i get in an accident at least it is documented. Current mileage under 4000 miles.
I don’t feel lonely anymore, 2021 Silverado Custom here, 3400 miles.
On September 8, I took my 2021 custom to the dealer, for the same repair, they kept the truck saying it was a safety issue. It took 48 days for them to locate the master cylinder. Allegedly it will be ready tomorrow afternoon.
I’m wondering now if I’ll be reimbursed for my car payment, xm radio, WiFi and Onstar for the last 48 days While it was on their lot???
I have a 2021 Silverado with a 8 speed transmission. When I roll slowly to a stop just be for I stop I fell a very small shiver. It also when I do a slow roll thru a stop and the give it a little gas some times it will then slam into gear. My wife askes what was that. It is not me I have been driving for 45 year and have never had the happen on any other vehicle To me it seams that the transmission does not down shift fast enough. I even had a Chevrolet dealer sales rep. tell me about his Silverado doing the same thing. He sold it and got one with a 10 speed and has not had it happen with it.
Same brake module issue. Been in a loaner for 2 months now I’m guessing to side step Texas lemon law. With national back order on parts what are my options? Im surprised nobody has tried to sell me another truck.
Mine happened about 3 weeks ago, total loss of brakes. Dealer got codes and said its ok now, but should leave it…no loaners or rentals available.
I took my truck…another loss of brakes…in shop getting fixed…parts hard to find.