According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Chevrolet Silverado has 1 documented known issues, with 1 rated critical. The most serious is 6.2L V8 (L87) Connecting Rod / Crankshaft Failure — Loss of Propulsion Recall ($0-$12,000 repair). Across all issues, repair costs range from $ to $12,000. DIY maintenance guides at au7o.io.
On the 2021-2024 Chevrolet Silverado 6.2L V8 (L87), gM recalled roughly 597,630 trucks and SUVs (NHTSA recall, 2025) — including 2021-2024 Silverado 1500 with the 6.2L L87 V8 — for connecting rods and/or crankshafts that may have manufacturing defects (debris in oil passages or out-of-spec parts). Affected engines can seize or knock and suddenly lose propulsion, with documented fire and crash allegations. GM's tally tied to the recall logged about 28,000 complaints, including ~14,300 alleging loss of propulsion. The remedy splits vehicles into two groups: those that fail inspection get a full engine replacement, while those that pass switch from 0W-20 to thicker 0W-40 oil plus a revised service procedure. NHTSA opened a follow-up engineering analysis into post-recall L87 failures, and a class action is pending — this is currently the highest-profile, highest-demand Silverado issue.
Sudden loss of power / loss of propulsion while driving
Engine stall and no-restart
Low oil pressure warning
Metal debris in oil
Burning smell or smoke
How to Fix
Check VIN against NHTSA recall and have the dealer perform the recall inspection. Engines that fail inspection receive a free engine replacement; engines that pass receive an oil change to 0W-40 and updated oil-fill-cap/owner guidance. If you experience knocking, a sudden power loss, or low oil pressure, stop driving and contact the dealer — continuing to drive risks total engine destruction and fire.
What you need to fix it
The exact part — skip the internet hunt.
Engine oil — dexos R 0W-40 full synthetic (recall-spec viscosity, 8.0 qt fill)
OEM # 19432866Also fits: Mobil 1 Supercar 0W-40 (the bulk equivalent of GM 19432866), Mobil 1 FS 0W-40 (GM-authorized substitute per revised bulle, Any dexos R-licensed 0W-40 full synthetic$10–$18
GM PN 19432866 = 'OIL,ENG SUPERCAR 0W40 MOBIL 1 1QT' (Mobil 1 Supercar, dexos R, 1-quart), confirmed on GM parts retailers (gmpartsgiant ~$10/qt, MSRP ~$17.68) and Mobil.com. The recall (NHTSA 25V-274 / GM N252494001) permanently raises L87 viscosity from 0W-20 to 0W-40; capacity is 8.0 qt (7.6 L).
GM PN 12735811 = ACDelco PF63, confirmed across Amazon, Summit Racing, Parts Universe, SDParts and ACDelco catalog. This is the correct filter for the 6.2L L87 GAS V8 (NOT the PF66 / GM 12727115, which is the 3.0L LM2/LZ0 Duramax diesel filter — a common mix-up). The recall remedy replaces the oil f
What are the most common Chevrolet Silverado problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021-2021 Chevrolet Silverado has 1 documented issues. The most frequently reported are: 6.2L V8 (L87) Connecting Rod / Crankshaft Failure — Loss of Propulsion Recall. Of these, 1 is rated critical and should be addressed promptly.
Is the Chevrolet Silverado reliable?
The 2021-2021 Chevrolet Silverado has 1 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: 6.2L V8 (L87) Connecting Rod / Crankshaft Failure — Loss of Propulsion Recall. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Chevrolet Silverado problems?
Repair costs for known Chevrolet Silverado issues range from $0 to $12,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 6.2L V8 (L87) Connecting Rod / Crankshaft Failure — Loss of Propulsion Recall, typically costs $0-$12,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2021-2024 Chevrolet Silverado 6.2L V8 (L87) Connecting Rod / Crankshaft Failure — Loss of Propulsion Recall?
GM recalled roughly 597,630 trucks and SUVs (NHTSA recall, 2025) — including 2021-2024 Silverado 1500 with the 6.2L L87 V8 — for connecting rods and/or crankshafts that may have manufacturing defects (debris in oil passages or out-of-spec parts). Affected engines can seize or kno… Repairs typically run $0-$12,000. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
