GM has issued a preliminary service bulletin for several vehicle models across three of its core brands, which may be affected by a problem with premature brake pad wear reported by owners – including the 2019 through 2024 GMC Sierra 1500 pickup truck, the 2021 through 2024 GMC Yukon, and the 2021 through 2024 GMC Yukon XL.
The brake pads in the affected units may wear down so quickly that only a few thousand miles of driving is enough to wear out the pads completely, per information in GM Preliminary Bulletin number PIT6134E.
The rapid wear on the brake pads of affected GMC Sierra, GMC Yukon and GMC Yukon XL vehicles occurs especially when the brakes get unusually hot. These times include, according to the bulletin, when the pickup or SUV is driving in the mountains, or during repeated stop and go driving in dense city traffic.
The reason for the excessive brake pad wear has been traced to the material recently introduced for making the pads by General Motors. The material was formulated to reduce brake noise, but appears to be extremely like to wear very quickly as well. GM indicates that a large number of vehicle owners are reporting the issue, which led to the automaker investigating.
There is no current long-term fix for the problem because the only brake pads GM has available as replacements are the same ones wearing out quickly as a result of their material characteristics. The engineering team at the automaker is working to create a new material for the pads that will be much more durable and long-lasting.
The service bulletin will be updated with a remedy once the GM engineers complete the new pad material development. A sufficient number of new pads will also need to be produced to cover the GMC Sierra, Yukon, Yukon XL, and other vehicle units affected by the issue.
GMC units are not the only vehicles affected, with models from Chevrolet and Cadillac also subject to the issue. However, the fast-wearing brake pads seem to be used only in vehicles sold in the North American market.
Pickup trucks and full-size SUVs are the only vehicle types that seem to be affected by the problem.
Wearable outside the vehicle.
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https://gmauthority.com/blog/2024/12/chevy-silverado-tahoe-and-suburban-brake-pads-may-wear-prematurely/
Another pathetic, half-baked component.
Are people driving these things like they're sports cars? My '21 Sierra, 3.0 Duramax, currently has 45K miles on it, towing a 7,000-lb trailer at least half of those miles. I'm showing 78/87% brake life, front/rear, so it looks like the front pads won't need replacement until at least 200k, rears at least 300k. Am I the only one who knows how to downshift when going downhill? Weird.
More problems from GM !! What is going on with this corporation ??
simple, poor management
I'm driving a 2019 Silverado LD ( legacy model) just rolled 100k and dealer says brake pads are still okay. Inexcusable brake pads would wear out that fast. SMH
I have a 2024 GMC ACADIA DENALI.. mostly all highway miles..8200 miles on it and it shows
I have 49% brake wear left..I think this is more than just trucks!
Don't this company test anything anymore. They have a proving ground in milord mich. What the hell. Better go to autozone. I wouldn't want to bring my truck in every few thousand miles. Ridiculous!!!
Mary needs to put in her 2 weeks notice.
Quality control and testing of components seems a thing of the past under current leadership at GM. Too much emphasis, time and money spent on this EV stuff and not nearly enough on the bread and butter of the Corporation. Time for a house cleaning by the Board and/or the Stockholders.
What leadership? 😀
So there was no GM testing of these brake pads? Just change compounds in the pads without actual road testing? GM can't get out of their own way. Their market share will continue to decline.