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 Tahoe High Country on a mountain road

2021

Simple Fix For Suburban / Tahoe / Yukon / Escalade Side Blind Zone & Rear Cross Traffic Alert Malfunction

If the rear cross-traffic alert or side blind zone system in your 2021 through 2023 Chevrolet Tahoe, Suburban, GMC Yukon, or Cadillac Escalade doesn’t detect all vehicles or displays a “System Unavailable” Error on your gauge cluster- there might be a simple fix. Rear Cross Traffic & Blind Spot System Errors – Potential Models Affected… Continue reading Simple Fix For Suburban / Tahoe / Yukon / Escalade Side Blind Zone & Rear Cross Traffic Alert Malfunction

The tailgate release buttons on a Red Chevrolet Silverado with the Multi-Flex tailgate

technical service bulletin

Chevy/GMC Release New Parts To Fix Unwanted, Random, or Inadvertent Tailgate Opening

If your 2020 or newer Chevrolet Silverado or GMC Sierra 1500, 2500, or 3500 had its tailgate randomly open when you didn’t want it to, we’ve got some good news and a solution. The Problem – Tailgate Opening Issue Reports have skyrocketed online, with owners of Silverado and Sierra pickups reporting that the tailgate of… Continue reading Chevy/GMC Release New Parts To Fix Unwanted, Random, or Inadvertent Tailgate Opening

A straight on view of a 2024 Chevrolet Silverado in a desert environment with a mountain behind it.

technical service bulletin

GM Issues Stop Sale Order – Silverado & Sierra Roofs Are Splitting Apart

General Motors is issuing a campaign to fix certain Chevrolet Silverado and GMC Sierra pickups after reports show the roof panel on the passenger side may begin to split open. Silverado / Sierra Roof Splitting – Vehicles Affected: 2024 Chevrolet Silverado 2024 GMC Sierra Approximately 3,067 vehicles in the United States are potentially affected. No… Continue reading GM Issues Stop Sale Order – Silverado & Sierra Roofs Are Splitting Apart

A 2024 Chevrolet Silverado HD ZR2 Towing a Camping Trailer

technical service bulletin

Chevy & GMC Release Fix For Silverado & Sierra HD Shake or Shudder Under Light Throttle

If you own a Silverado HD or Sierra HD with an unusual shake or shudder at light throttle or steady speed- Chevrolet and GMC have released a fix that may address your problem. Silverado HD / Sierra HD Shudder and/or Shake – The Issue Detailed under a new Technical Service Bulletin released on November 30th,… Continue reading Chevy & GMC Release Fix For Silverado & Sierra HD Shake or Shudder Under Light Throttle

A trailering information label on a red Chevrolet Silverado

technical service bulletin

Some 2024 Silverado / Sierra HD Pickups Have Wrong Trailering Information Labels

A small number of 2024 Chevrolet Silverado 2500HD / 3500HD & GMC Sierra 2500HD / 3500HD Pickups were produced with the wrong trailering information label, located inside the driver’s door jam. What is the Trailering Information Label? The Trailering Information Label is a label found on the driver’s door jam since 2019 on most Silverado… Continue reading Some 2024 Silverado / Sierra HD Pickups Have Wrong Trailering Information Labels

A GMC Canyon AT4X Off Road Next To A Frozen Lake In A Snowy Mountain Landscape

technical service bulletin

Some Colorado/Canyon & Silverado/Sierra with 2.7L Turbo May Set Check Engine Light

2023-2024 Colorado, Canyon, 2024 Silverado 1500, and Sierra 1500 models equipped with the 2.7L turbo (L3B) TurboMax 4-cylinder engine are experiencing a range of powertrain Diagnostic Trouble Codes (DTCs) accompanied by an illuminated Check Engine light. This issue may be attributed to a loose terminal in the transmission wiring connector​​ Vehicles Affected 2023-2024 Chevrolet Colorado… Continue reading Some Colorado/Canyon & Silverado/Sierra with 2.7L Turbo May Set Check Engine Light

A 2023 Chevrolet Traverse On The Highway

TSB

Never Use Power Tools To Remove A Wheel Drive Shaft Nut On These Chevrolet, Buick, Cadillac, and GMC Vehicles

Certain Chevrolet, Cadillac, Buick & GMC models equipped with all-wheel drive are experiencing damage to their wheel drive shaft threads. This issue arises when power tools are used to remove the wheel drive shaft nut​​. Damaged Wheel Nut – Vehicles Affected 2021-2023 Cadillac XT5 2021-2023 Cadillac XT6 2021-2023 Chevrolet Blazer 2021-2023 Chevrolet Traverse 2021-2023 GMC… Continue reading Never Use Power Tools To Remove A Wheel Drive Shaft Nut On These Chevrolet, Buick, Cadillac, and GMC Vehicles

An underhood photo of the 3.0L Duramax Diesel Engine found in the 2024 Silverado and Sierra

TSB

Critical Fix Released For Silverado / Sierra 3.0L Duramax With Check Engine Light

Chevrolet and GMC have issued a critical service bulletin for the 2023 models of the Chevrolet Silverado 1500 and GMC Sierra 1500 equipped with the 3.0L Duramax Diesel Engine (LZ0). This bulletin, numbered 23-NA-193 and dated November 2023, is aimed at addressing specific diagnostic trouble codes (DTCs) that have been identified in these models. TSB… Continue reading Critical Fix Released For Silverado / Sierra 3.0L Duramax With Check Engine Light

A photo of the GMC Sierra 1500 AT4X and Chevrolet Silverado 1500 ZR2 side by side

technical service bulletin

Some Brand New 2024 Chevrolet Silverado and GMC Sierra Have A Software Glitch

A small but significant number of brand-new 2024 Chevrolet Silverado and GMC Sierra have a minor software glitch that will require a quick trip to the dealer to correct. Now, admittedly, “minor software glitch” is my words, not an official diagnosis. But here is precisely what’s going on. General Motors has recently issued a Service… Continue reading Some Brand New 2024 Chevrolet Silverado and GMC Sierra Have A Software Glitch