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.

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

Some 2024 Chevrolet Silverado and GMC Sierra Experience Start-Up Issues Due to Software Anomaly

Some 2024 Chevrolet Silverado and GMC Sierra Experience Start-Up Issues Due to Software Anomaly

Owners of the 2024 Chevrolet Silverado and GMC Sierra equipped with the 3.0L LZ0 engine may encounter a unique issue where the vehicle may crank but fail to start. The problem is detailed in a Preliminary Technical Service Bulletin (TSB). Preliminary Bulletin PIP5963- 3.0L with a Crank – No Start and Setting DTC P062B The… Continue reading Some 2024 Chevrolet Silverado and GMC Sierra Experience Start-Up Issues Due to Software Anomaly

A blue grey Chevrolet Silverado EV RST parked in a driveway

2024

Silverado EV Owners May Experience Popping/Creaking Sounds

Owners of the 2024 Chevrolet Silverado EV have reported experiencing a popping or creaking noise while performing certain steering maneuvers.  The brand has recently released a Technical Service Bulletin (TSB) going over the sounds and why they are happening. Technical Service Bulletin 24-NA-045 Released on March 7th, 2024, TSB 24-NA-045 details how some 2024 Silverado… Continue reading Silverado EV Owners May Experience Popping/Creaking Sounds