P1F11 on 2016-2019 Chevrolet Volt — Battery Charger System Performance
1 vehicles · 1 makes · $10-$1,400 repair
How to diagnose and fix P1F11: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Chevrolet Volt · 2016–2019
Second-generation Chevrolet Volts (2016-2019) have a widespread manufacturing defect that prevents the vehicle from recognizing that it is in Park, displaying a persistent "Shift to Park" error message. The vehicle cannot be powered off normally, draining the battery. GM's bulletin attributes it to the park switch in the shifter assembly not pulling the BCM signal low to show the vehicle is in Park (DTC B000A may set). GM released Service Bulletin 19-NA-206 but offered limited repair coverage. DIY fix parts cost under $30 but dealer quotes range from $450-$1,400.
Common Symptoms
- "Shift to Park" message displayed when vehicle is in Park
- Vehicle will not power off or shut down normally
- Key fob unable to lock doors after exiting
- Battery drains if vehicle cannot shut down properly
- Intermittent issue that worsens over time
How to Fix
Check if GM Service Bulletin 19-NA-206 covers your vehicle under the Voltec Warranty. The bulletin fix is to remove the shifter, install a new shifter harness, and add an in-line shifter wire harness jumper; owners commonly do a DIY park-switch repair with $10-$30 in parts. Many owners successfully fix this themselves in 30-45 minutes. If the dealer refuses warranty coverage, reference the Voltec warranty terms and escalate to GM customer service.
Sources for this issue (1)
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P1F11 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P1F11 mean?
P1F11 stands for "Battery Charger System Performance." P1F11 is a manufacturer-specific code in the powertrain range whose provided name is Battery Charger System Performance, indicating the high-voltage battery charging system (on a hybrid, plug-in, or electric vehicle) is not performing within expected parameters. The control module monitors charging voltage, current, and related signals, and sets this code when the charger's actual output or behavior deviates from what it commands. Symptoms can include reduced charging, charging faults, or a warning to service the charging/electrical system. Because P1xxx codes are defined by the manufacturer, the exact meaning and components should be confirmed against the specific vehicle's service information.
What are the most common causes of P1F11?
The most common causes of P1F11 are: Faulty onboard battery charger module, High-voltage battery or battery management module fault, Damaged charging system wiring or high-voltage connectors, Charge port or charging interface fault, Cooling problem causing charger to derate, Voltage/current sensor reading out of range, Software or control module calibration issue. The specific cause varies by vehicle.
How much does it cost to fix P1F11?
Repair costs for P1F11 range from $10 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by P1F11?
Au7o has documented P1F11 across 1 vehicle models from 1 manufacturers: Chevrolet.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.