P1FFF on 2017-2022 Chevrolet Bolt EV — Manufacturer-Specific Code (hybrid/EV system, unconfirmed)
1 vehicles · 1 makes
How to diagnose and fix P1FFF: most-reported vehicles
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Chevrolet Bolt EV · 2017–2022
All 2017-2022 Bolt EV and 2022 Bolt EUV vehicles were subject to a massive recall for battery fire risk. LG Energy Solution manufactured battery cells with two simultaneous defects — a torn anode tab and a folded separator — that could cause an internal short circuit and thermal runaway (fire) during charging, particularly when the battery was charged to 100%. Multiple Bolt EVs caught fire while parked and charging, leading GM to halt sales and production temporarily. GM ultimately replaced every battery module in every affected vehicle at no cost.
Common Symptoms
- Recall notification from GM or NHTSA
- Battery warning messages on dashboard
- Charging stopped or limited by vehicle software
- Vehicle limits charging to 90% automatically
- Burning smell or smoke from under vehicle (EMERGENCY: call 911)
How to Fix
Check your VIN at my.chevrolet.com/recalls or NHTSA.gov. All affected Bolts receive a FREE complete battery module replacement with updated LG cells that do not have the manufacturing defects. The replacement also includes updated battery management software and an extended 8-year/100,000-mile warranty on the new battery. If you have not had the recall completed, schedule it immediately at any Chevrolet dealer. Until the recall is completed, GM advises: do not charge above 90%, do not deplete below 70 miles of range, do not charge indoors overnight, and park outside away from structures.
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Sources for this issue (1)
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P1FFF 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 P1FFF mean?
P1FFF stands for "Manufacturer-Specific Code (hybrid/EV system, unconfirmed)." P1FFF is a manufacturer-specific alphanumeric code with no single standardized definition; some sources associate it with a hybrid/EV battery charging or system isolation/coolant-level condition, but this varies by manufacturer and is not reliably confirmed. As an alphanumeric P1xxx code it is defined by the individual carmaker, so the exact meaning depends on the specific vehicle. In general it indicates the powertrain or high-voltage system control logic flagged an abnormal condition. Confirm the precise definition with manufacturer-specific service data or a capable scan tool before diagnosis.
What are the most common causes of P1FFF?
The most common causes of P1FFF are: Manufacturer-specific high-voltage or system fault, Coolant level or thermal management sensor issue (if applicable), Wiring or connector fault in the affected circuit, Control module internal or software fault, Out-of-range signal on a monitored system, Power or ground supply problem. The specific cause varies by vehicle.
How much does it cost to fix P1FFF?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P1FFF?
Au7o has documented P1FFF across 1 vehicle models from 1 manufacturers: Chevrolet.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.