What is the 2011-2016 Chevrolet Silverado 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction?

Silverado 2500HD/3500HD trucks with the 6.6L Duramax LML use the Bosch CP4.2 high-pressure injection pump, which was designed around European diesel and is poorly lubricated by U.S. ULSD. The pump's roller/cam interface can gall and disintegrate, sending metal shavings throughout… Repairs typically run $5,000-$12,000. Severity: high.

What is the 2014-2015 Chevrolet Silverado Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall)?

GM recalled 2014 Silverado 1500 (NHTSA 17V414, ~690,685 units) and 2015 Silverado/Tahoe/Suburban (over 1 million units) for a temporary loss — and sudden return — of electric power steering assist, especially during low-speed turns. The EPS draws a high-energy load in low-speed m… Repairs typically run $0-$200. Severity: high.

What is the 2007-2019 Chevrolet Silverado 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage?

The 5.3L (and 6.2L) V8 with Active Fuel Management — GM's cylinder-deactivation system that drops the engine to 4 cylinders to save fuel — is notorious for collapsed AFM lifters. The special deactivating lifters (and the lifter oil-manifold/VLOM that feeds them) fail when oil pre… Repairs typically run $1,500-$4,500. Severity: high.

What is the 2014-2018 Chevrolet Silverado Brake Vacuum Pump Failure — Hard Brake Pedal (3.4M-Vehicle Recall)?

GM recalled about 3.46 million vehicles (NHTSA 19V645 and expanded 20V603), including 2014-2018 Silverado 1500, for an engine-driven brake vacuum pump that loses output over time. Debris and oil sludge build up on the pump's internal filter screen, reducing the vacuum that powers… Repairs typically run $0-$600. Severity: high.

What is the 2014-2020 Chevrolet Silverado A/C Condenser Leak — A/C Blows Warm Air (Spot-Weld Crack / Combi-Cooler Failure)?

The A/C condenser on K2XX-platform Silverados is a chronic failure point — the condenser develops cracks at the side spot-welds (thermal-stress fatigue) and the discharge line/hose can flex and crack, both of which leak refrigerant and leave the A/C blowing warm air. It was the #… Repairs typically run $400-$1,200. Severity: medium.

Chevrolet · Known Issues

2015 Chevrolet Silverado Problems: 6 Issues Every Owner Should Know

2015 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated July 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Chevrolet Silverado has 6 documented known issues, with 5 rated critical. The most serious are 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder ($200-$4,000 repair), 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction ($5,000-$12,000 repair), Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall) ($0-$200 repair), 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage ($1,500-$4,500 repair) and Brake Vacuum Pump Failure — Hard Brake Pedal (3.4M-Vehicle Recall) ($0-$600 repair). Across all issues with published estimates, repair costs range from $200 to $12,000. DIY maintenance guides at au7o.io.

All 6 Known Issues

Frequently Asked Questions

What are the most common Chevrolet Silverado problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2015 Chevrolet Silverado has 6 documented issues. The most frequently reported are: 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder, 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction, Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall). Of these, 5 are rated critical and should be addressed promptly.

Is the Chevrolet Silverado reliable?

The 2015 Chevrolet Silverado has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 5 issues are rated critical: 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder and 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction and Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall) and 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage and Brake Vacuum Pump Failure — Hard Brake Pedal (3.4M-Vehicle 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, 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder, typically costs $200-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2015-2019 Chevrolet Silverado 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder?

Silverados with the Hydra-Matic 8L90 (and 8L45) 8-speed automatic are widely reported to hesitate, then shudder, jerk, clunk or 'hard shift' when changing gears — some owners describe a shift so violent it feels like being rear-ended, plus a torque-converter-clutch shudder that f… Repairs typically run $200-$4,000. Severity: high.

2015 Chevrolet Silverado Problems: 6 Issues Every Owner Should Know

All 6 Known Issues

2015-2019 Chevrolet Silverado: 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder#

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2011-2016 Chevrolet Silverado: 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction#

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2014-2015 Chevrolet Silverado: Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall)#

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2007-2019 Chevrolet Silverado: 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage#

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2014-2018 Chevrolet Silverado: Brake Vacuum Pump Failure — Hard Brake Pedal (3.4M-Vehicle Recall)#

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2014-2020 Chevrolet Silverado: A/C Condenser Leak — A/C Blows Warm Air (Spot-Weld Crack / Combi-Cooler Failure)#

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Other Chevrolet Models

Frequently Asked Questions

What are the most common Chevrolet Silverado problems?

Is the Chevrolet Silverado reliable?

How much does it cost to fix common Chevrolet Silverado problems?

What is the 2015-2019 Chevrolet Silverado 8-Speed (8L90 / 8L45) Transmission Shudder, Hard Shift and Torque-Converter Judder?

What is the 2011-2016 Chevrolet Silverado 6.6L Duramax LML Bosch CP4.2 Fuel Pump Failure — Whole Fuel System Destruction?

What is the 2014-2015 Chevrolet Silverado Temporary Loss of Electric Power Steering Assist (Voltage-Drop Recall)?

What is the 2007-2019 Chevrolet Silverado 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage?

What is the 2014-2018 Chevrolet Silverado Brake Vacuum Pump Failure — Hard Brake Pedal (3.4M-Vehicle Recall)?

What is the 2014-2020 Chevrolet Silverado A/C Condenser Leak — A/C Blows Warm Air (Spot-Weld Crack / Combi-Cooler Failure)?