What are the most common GMC Sierra 1500 problems?
According to Au7o's analysis of 4,309+ owner reports, the 2015-2015 GMC Sierra 1500 has 7 documented issues. The most frequently reported are: AFM/DFM Lifter Collapse and Failure, 8-Speed/10-Speed Transmission Torque Converter Shudder, Electronic Brake Control Module Failure. Of these, 4 are rated critical and should be addressed promptly.
Is the GMC Sierra 1500 reliable?
The 2015-2015 GMC Sierra 1500 has 7 known issues documented across 4,309+ owner reports. 4 issues are rated critical: AFM/DFM Lifter Collapse and Failure and 8-Speed/10-Speed Transmission Torque Converter Shudder and Electronic Brake Control Module Failure and Transfer Case Unintended Shift to Neutral. 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 GMC Sierra 1500 problems?
Repair costs for known GMC Sierra 1500 issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, AFM/DFM Lifter Collapse and Failure, typically costs $4,000-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2014-2023 GMC Sierra 1500 AFM/DFM Lifter Collapse and Failure?
The Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems use special hydraulic lifters that collapse to deactivate cylinders for fuel economy. These lifters are prone to premature failure due to poor physical design and inadequate oil flow. Failures can occur as… Repairs typically run $4,000-$8,000. Severity: high.
What is the 2015-2023 GMC Sierra 1500 8-Speed/10-Speed Transmission Torque Converter Shudder?
The 8L90 8-speed and 10L80/10L90 10-speed automatic transmissions experience shuddering during light throttle acceleration, particularly at highway speeds between 35-60 mph. The issue is caused by the torque converter lock-up clutch slipping and chattering. Harsh shifts between g… Repairs typically run $150-$4,500. Severity: high.
What is the 2014-2023 GMC Sierra 1500 Electronic Brake Control Module Failure?
The electronic brake control module (EBCM) experiences failures causing ABS, traction control, and stability control systems to malfunction. Issues range from warning lights illuminating to complete system failures. The 2023 models have a specific recall for software that may fai… Repairs typically run $150-$1,500. Severity: high.
What is the 2014-2015 GMC Sierra 1500 Transfer Case Unintended Shift to Neutral?
An electrical signal short in the transfer case can cause it to shift to neutral without driver input while driving. This results in sudden loss of power to the wheels creating a serious safety hazard, particularly at highway speeds or when towing. Repairs typically run $0-$0. Severity: high.
What is the 2014-2018 GMC Sierra 1500 Intermediate Steering Shaft Clunk?
The upper intermediate steering shaft develops excessive wear causing a pronounced clunking noise when turning the steering wheel or going over bumps. The issue is caused by wear in the shaft's universal joints or the plastic bushing near the firewall. GM has redesigned the part… Repairs typically run $50-$600. Severity: medium.
What is the 2014-2020 GMC Sierra 1500 A/C Compressor and Clutch Failure?
The A/C compressor is prone to premature failure due to faulty welds, insufficient lubrication, or internal mechanical failure. When the compressor fails catastrophically, metal debris contaminates the entire A/C system requiring replacement of multiple components. The A/C clutch… Repairs typically run $500-$2,500. Severity: medium.
What is the 2014-2023 GMC Sierra 1500 Direct Injection Carbon Buildup on Intake Valves?
Direct injection engines do not spray fuel over the intake valves like port injection systems, allowing carbon deposits from oil and blow-by gases via the PCV system to accumulate on intake valve backs and ports. Over time, this buildup restricts airflow causing performance and e… Repairs typically run $400-$800. Severity: medium.
