Category: Technical Service Bulletins

Category: Technical Service Bulletins

Access critical Technical Service Bulletins for GM Trucks: expert diagnostics, solutions, and updates. Your resource for vehicle maintenance.

Chevrolet Silverado ZR2 parked in the desert alongside a 6.2L L87 V8 engine, highlighting normal operational noises in GM’s powerful truck engines.

Chirp & Squeak? Why Your GM 6.2L & 6.6L V8 Sounds Different—And Why It’s Normal

If you own a Chevy Silverado, GMC Sierra, Tahoe, Yukon, or even a Cadillac Escalade with the 6.2L L87 or 6.6L L8T V8, you might have noticed some unexpected noises from under the hood. Maybe a chirp, squeak, or sputter caught your ear while idling or restarting. It’s easy to assume something’s wrong, but GM… Continue reading Chirp & Squeak? Why Your GM 6.2L & 6.6L V8 Sounds Different—And Why It’s Normal

Close-up of a front brake rotor and caliper assembly on a Chevrolet Silverado, highlighting the brake system addressed in GM’s premature wear bulletin.

2019

Chevy and GMC Admit Brake Pads on Silverado and Sierra May Only Last a Few Thousand Miles

If you’ve been surprised by how quickly your GM truck or SUV is chewing through front brake pads, you’re not imagining things. GM recently issued a technical bulletin acknowledging premature brake pad wear on many popular models, and it could explain why you’re replacing pads more often than expected. We’ve experienced this ourselves. After owning… Continue reading Chevy and GMC Admit Brake Pads on Silverado and Sierra May Only Last a Few Thousand Miles

2024 GMC Sierra Denali in black, affected by a GM speaker crackling issue reported in recent models.

phone

Why Is My Silverado’s Speakers Crackling During Phone Calls? Here’s What I Found

If you’re driving a 2022–2024 Chevrolet or GMC vehicle and experiencing annoying crackling or static sounds from the speakers during phone calls, you’re not alone. I recently started noticing this in my vehicle and decided to dig into what might be causing it. After some research, I found out that GM is aware of the… Continue reading Why Is My Silverado’s Speakers Crackling During Phone Calls? Here’s What I Found

Red Chevrolet Silverado 1500 ZR2 towing a large black enclosed trailer on a wet road

Understanding the “GCW Overweight” Messages In Your Chevy Silverado or GMC Sierra

If you own a Chevrolet Silverado or GMC Sierra and tow trailers, you might see a “GCW Overweight” message appear in your gauge cluster. It’s easy to get worried, but don’t panic. Here’s everything you need to know. General Motors Technical Service Bulletin No.: PIC6572 Published Date: September 13, 2024 Understanding the GCW Overweight Indicator… Continue reading Understanding the “GCW Overweight” Messages In Your Chevy Silverado or GMC Sierra

Two Chevrolet Silverado ZR2 pickup trucks parked in a snowy wooded area.

2024 & 2025 Silverado / Sierra Owners Experience 4WD Indicator Confusion

If you’ve recently started up your 2024–2025 Chevrolet Silverado or GMC Sierra and noticed that the four-wheel drive (4WD) indicator isn’t immediately visible, you’re not alone. Dealerships have received inquiries about this, prompting a service bulletin (PIT6244) to address what might seem like a missing indicator. Here’s a straightforward explanation of what’s happening and why… Continue reading 2024 & 2025 Silverado / Sierra Owners Experience 4WD Indicator Confusion

Suburban, Tahoe & Yukon Have A Commonly Miswired Part - Fixing Will Unlock A Feature You Didn't Know About

Suburban, Tahoe & Yukon Have A Commonly Miswired Part – Fixing Will Unlock A Feature You Didn’t Know About

Did you know that your Suburban, Tahoe, or Yukon might be hiding a feature you never knew existed? General Motors (GM) has uncovered a surprising issue: a commonly miswired part in the front floor console bin lamp of certain 2021-2024 models. This simple fix, detailed in service bulletin 24-NA-062, could unlock functionality you’ve been missing… Continue reading Suburban, Tahoe & Yukon Have A Commonly Miswired Part – Fixing Will Unlock A Feature You Didn’t Know About

Chevrolet, GMC & Cadillac Full-Size SUV Batteries Dying - Liftgates Randomly Opening

2022

Chevrolet, GMC & Cadillac Full-Size SUV Batteries Dying – Liftgates Randomly Opening

Some 2022 through 2024 Tahoe, Suburban, Yukon and Escalade full-size SUV owners are finding their vehicles batteries are mysteriously dying and/or their rear tailgates are randomly opening all on their own. General Motors has recently released a Technical Service Bulletin to address these issues, which are related to a faulty part and faulty software.  “TSB… Continue reading Chevrolet, GMC & Cadillac Full-Size SUV Batteries Dying – Liftgates Randomly Opening

2023/2024 Chevrolet Silverado Police Pursuit Equipped with Wrong Tires

2023/2024 Chevrolet Silverado Police Pursuit Equipped with Wrong Tires

2023/2024 Chevrolet Silverado 1500 models equipped with the Police Pursuit Package (RPO 9C1) may have been built with the wrong tires. Chevrolet has announced “Customer Satisfaction Program N242437510 – Police Pursuit Package Tires” detailing the issue. History of the Silverado Police Pursuit Package Debuting in 2023, the Chevrolet Silverado Police Pursuit Vehicle (PPV) builds upon… Continue reading 2023/2024 Chevrolet Silverado Police Pursuit Equipped with Wrong Tires

Lifter Nightmare: Why GM is Replacing Some 6.2L L87 V8 Engines

6.2L

Lifter Nightmare: Why GM is Replacing Some 6.2L L87 V8 Engines

Chevrolet, GMC, & Cadillac may have built vehicles powered by 6.2L V8 engines with a big problem.  The solution? Replace the entire engine. In April, General Motors Released “Customer Satisfaction Program N232413430 – “Oversized Lifter Bores”. While not technically a recall, the program aims to fix an issue where an unknown number of 6.2L engines… Continue reading Lifter Nightmare: Why GM is Replacing Some 6.2L L87 V8 Engines