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Recall N252532020: Missing Owner’s Manual on Some 2026 Chevrolet Silverado Trucks
GM has issued safety recall N252532020 for certain 2026 Chevrolet Silverado 1500, 2500HD, and 3500HD trucks that left the factory without a printed owner’s manual. Because the manual contains required FMVSS/CMVSS safety information on child seat anchors and crash protection, dealers must now provide and install the correct book in the glove box at no charge to the owner.
8 minutes ago
New GM Bulletin Targets Harsh 10L80 Engagement After Auto Stop on 2026 3.0 Duramax Trucks
GM has released bulletin #25-NA-325 for 2026 Silverado and Sierra 1500 trucks equipped with the LZ0 3.0 Duramax and 10L80 (MQB) transmission to address a harsh or jerky engagement when the engine restarts after an Auto Stop event. The fix is a Transmission Control Module (TCM) software update, which dealers can apply after checking for the latest calibration, with no hard parts replaced.
1 hour ago


GM Customer Satisfaction Program N252507990: Jack Kit Lifting Rod Replacement
GM’s Customer Satisfaction Program N252507990 addresses an out-of-spec jack kit lifting rod on select 2025 GM trucks and SUVs. Dealers will replace the lifting rod at no charge through December 31, 2027. Learn which models are affected, how to check your VIN, and what to expect at the dealer.
Nov 18


LZ0 Thrust Bearing Build Dates
This will be the location for a compilation of build dates that hav / have not had an engine failure. The purpose of this article is to give us some sort of timestamp as to when these engines / vehicles were actually built. Hopefully set some minds at ease as well to show how many true failures there have been. this is a small sampling from a video posted here: https://youtu.be/WmlzcwNtdjY UPDATE - 11/11 9:10 PM Update 11/12 7:45 - No new engine failures to report UPDATE - 11
Nov 10


GM Confirms Gen-3 10-Speed Valve Body: What Changed vs. Gen-2 (10L60/80/90) Service Bulletin # 25-NA-334
GM released a Gen-3 service valve body for 10L60/80/90. It improves robustness and sediment control, removes the auxiliary body, relocates key solenoids, simplifies harnessing and flow, deletes the internal TBV lineup on certain RPOs, and includes a revised bolt kit. First field units appeared around Aug 2025; bulletin issued Oct 29, 2025.
Oct 30
LZ0 Turbocharger Replacements: What GM’s New Bulletin Says About Oil—and What Owners Should Do
Bulletin: GM Service Bulletin # 25-NA-202 (Oct 21, 2025) — “LZ0 Turbocharger Replacement.” Vehicles: 2023–2026 Silverado/Sierra 1500 (LZ0), 2025 Tahoe/Suburban/Yukon with LZ0. The Issue? GM notes a portion of LZ0 turbo failures are associated with incorrect engine oil and/or low oil level . Translation: your turbo’s life hinges on using the exact diesel spec and keeping the sump properly filled. (Bulletin # 25-NA-202 summary.) What “wrong oil” means on the LZ0 The 3.0L Du
Oct 22


LZ0 3.0 Duramax: GM Flags Crankshaft End Play Behind Bellhousing Noise & P06DD (25-NA-307)
GM bulletin 25-NA-307 (LZ0 3.0 Duramax, 2025–2026) links bellhousing-area noise + MIL/P06DD to excessive crankshaft end play (possible thrust-bearing failure). Dealers should measure end play at the crank pulley bolt with a dial indicator; spec is 0.084–0.316 mm (0.0033–0.0124 in). Expect to pay diagnostic time for the check; if out of spec, repairs proceed per SI.
Oct 1


GM Issues New Valve-Body Repair for P0747 on 10-Speed (10L80/10L90)
GM has issued TSB #25-NA-255 for 2021–2024 trucks and SUVs with the 10-speed. Instead of replacing the valve body for P0747, the fix now calls for a new feed-limit valve, spring, and spacer plate—marking a major shift in how dealers handle this common transmission failure.
Sep 23


LZ0 3.0 Duramax: GM Issues Special Coverage for Coolant Control Valve (N252508340)
Release: September 2025 • Bulletin: N252508340 • Applies to: 2023 Chevrolet Silverado 1500 / 2023 GMC Sierra 1500 with LZ0 3.0L...
Sep 16


ECM Service Update N252510321: What Owners Need to Know (Aug 14, 2025)
GM has released Service Update #N252510321 for select Cadillac, Chevrolet, and GMC vehicles. This is a phased launch rolling out August...
Aug 19


2022 Silverado and Sierra 1500 Duramax Diesel Hit with Emission Recall (N222383021)
March 12, 2025 – Attention 2022 Chevrolet Silverado 1500 and GMC Sierra 1500 owners with the 3.0L Duramax diesel: General Motors has...
Mar 12


IOK Radio Updates - Complete List
2022 - 2025 Silverado / Sierra 1500 2024 - 2025 Silverado / Sierra 2500 / 3500 / HD 2022 - 2024 Tahoe / Suburban / Yukon / Yukon XL Y175...
Jan 11


Special CoverageN242454441 Momentary Rear Wheel Lock-Up
Hey there, fellow truck owners! I just wanted to give you the heads up on a new special coverage policy from GM that you might want to...
Nov 26, 2024


2024 Model Year Vehicles: N242478260 - Loose Steering Gear Motor Bolts/Fasteners
Important Service Update for 2024 Model Year Vehicles: N242478260 - Loose Steering Gear Motor Bolts/Fasteners Release Date : November...
Nov 25, 2024


MASSIVE RECALL INCOMING? N242454440
GM Issues Stop Delivery Order for Safety Recall: Momentary Rear Wheel Lock-Up Affects Multiple Models (2020-2022) Date of Recall :...
Oct 24, 2024


California Owners: 3.0 Duramax Diesels Require a Reprogram
N242441450 just came out that applies to all 3.0 Duramax Diesels in California (2021 - 2024) (LM2 and LZ0)
Aug 21, 2024


2024 Silverado / Sierra Sheet Metal Splitting !?!?
If you own a 2024 Silverado or Sierra, it would be a good idea to inspect your left rear door jamb for any cracks. GM has just informed...
May 10, 2024


Unwanted Tailgate Opening - Latest Fix (March 28 2024) Silverado Sierra 1500 Models
There is a recall out for unwanted tailgate opening but that is for the 2500/3500 trucks and not the 1500, unless, the truck is a...
Mar 29, 2024


SUPER CRUISE FIX AVAILABLE - B2BA1 - #24-NA-063
Super Cruise equipped vehicles have had their fair share of issues and GM has released a fix for one of them. If you are seeing a message...
Mar 28, 2024
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