This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗2012 Chevrolet Volt electrical problems
severe Owners of the 2012 Chevrolet Volt have filed 79 NHTSA complaints about the electrical, typically surfacing around 86,000 miles at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Failure mileage
Complaints
79
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2011 Volt | 23 |
| 2012 Volt (this page) | 79 |
| 2013 Volt | 54 |
| 2014 Volt | 26 |
| 2015 Volt | 16 |
| 2016 Volt | 53 |
2crashes
1fire
4injuries
When does it fail?
Of the 79 electrical complaints filed for the 2012 Chevrolet Volt, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Electrical accounts for 32% of every owner complaint on file for this vehicle — the dominant problem area across 9 categories tracked.
Owners have filed 79 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
full bulletin at NHTSA ↗This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2012 Volt's electrical system shows patterns of critical failures that span software, battery management, and charging infrastructure.
Propulsion system collapses are most alarming: multiple owners report complete loss of drive power and power steering when the battery depletes and the gas engine should engage. This occurs on highways at highway speeds with minimal warning—sometimes a "propulsion not available" message, sometimes none. Owners are forced to coast to a stop or negotiate multiple lanes to reach a shoulder. GM issued software update TSB PIC5803C to address charge-interrupt faults, but one owner complained the patch wasn't proactively distributed even after earlier dealer visits.
The charging cable poses fire hazard. The supplied 110V charger overheats, melts outlet plugs, and chars walls and garage wiring despite being in use on dedicated circuits. Corrosion develops on connectors in dry climates. Two owners reported near-house fires. GM's early recall covered only selected 2012 VIN blocks; roughly 10,000 other units remain uncovered.
Instrument cluster screens go completely blank without warning, eliminating visibility of speedometer, fuel level, battery charge, and warning lights—rendering the car unsafe to drive. Failures happen randomly between 35k and 100k miles. Dealerships offer only full cluster replacement ($923+) with no diagnosis of root cause.
Battery temperature sensors fail, forcing costly module replacement. One owner experienced sensor failure twice.
Silent electric motor masks forgotten shutdowns. Because the Volt is so quiet, drivers exit the vehicle with the system still running. The battery then depletes, triggering automatic engine start while parked. A documented case resulted in three household members hospitalized with carbon monoxide poisoning (>15% carboxyhemoglobin levels).
Software updates have degraded performance. After 2019 HPCM reprogramming to address battery cell-rebalancing, one owner's EV range dropped from 36–38 miles to 28–32 miles, engine runs at normal temperatures when it previously didn't, and the vehicle no longer charges properly. Dealers deny fault.
Same Chevrolet Volt electrical reports on nearby years: 2011 · 2013 · 2014 · 2015
Failure modes owners describe
Loss of propulsion during battery-to-engine transition
Vehicle loses all drive power, power steering, and ability to accelerate when the battery is depleted and the engine should automatically engage. Multiple owners report the vehicle comes to a complete stop on highways, creating dangerous situations requiring sudden lane changes or emergency stops.
When: Occurs after battery depletion during normal highway driving, mileage ranging from 48k to 162k miles
Symptoms owners cite: Complete loss of propulsion and power steering; Vehicle decelerates rapidly without warning; 'Propulsion system not available' or 'low propulsion mode' messages; Multiple MIL codes including P0AC4, P1E00, C12FE; Vehicle may restart after 5-10 minutes but runs poorly initially
Codes mentioned: P0AC4, P1E00, C12FE, P0D3E, P0D3F
Repairs/costs cited: Software updates (TSB PIC5803C) address charge system faults. Some owners report battery replacement needed ($6000+) after HPCM programming failures.
Recalls/TSBs owners mention: GM TSB PIC5803C for charge incomplete/interrupted faults. Some owners cite 2019 HPCM recall program affecting multiple vehicles with degraded performance post-service.
High-voltage charging cable failure and fire hazard
The standard 110V charging cord supplied with the vehicle fails, overheats, and creates fire risk. Cord becomes dangerously hot, outlet chars and melts, and corrosion develops on connector even in dry climates. Two documented incidents of melted outlets creating immediate fire hazard.
When: Failures occur between 18k-32k miles; one incident at 8 months of ownership with routine overnight charging
Symptoms owners cite: Charging cord stops working abruptly; Outlet becomes extremely hot during charging; Visible corrosion on plug and outlet despite no rain; Outlet and surrounding wall charred and melted; Burning plastic smell near garage charger
Repairs/costs cited: Dealership replaces charging cable unit. One owner reports melted outlet required electrician repair; inadequate wire gauge suspected as root cause.
Recalls/TSBs owners mention: GM recalled portion of 2011-2012 units under early recall campaigns; significant VIN blocks remain unrecalled. Limited information provided to owners about requirement for dedicated 20-amp circuit.
Instrument cluster display failure (blank screen)
Center LCD display goes completely blank, eliminating visibility of critical driving data including speedometer, fuel level, battery charge, temperature, turn signals, and warning lights. Failure occurs randomly and intermittently, sometimes resolving temporarily after restart or driving.
When: Occurs between 35k-100k miles; timing unpredictable; some cases correlate with temperatures above 75F or cold startup conditions
Symptoms owners cite: Instrument panel screen goes black without warning; All gauges and warning indicators invisible; Backlight may function but display data absent; Failure resolves temporarily after restart or after driving a few minutes; Failure recurs intermittently after resolution
Repairs/costs cited: Dealer replacement of entire instrument cluster assembly and reprogramming required; cost quoted at $923.52+. No permanent repair confirmed in narratives.
Recalls/TSBs owners mention: No dealer response documented in narratives; multiple owners report this is widespread in first-generation Volts but dealers unable to diagnose root cause.
Battery temperature sensor failure
Temperature sensors monitoring the high-voltage battery pack fail unpredictably. When a sensor fails, the entire battery module containing it must be replaced. Vehicle may refuse to start or display warning messages despite normal operating temperatures.
When: Failures occur at various mileages; reported at least twice for one owner
Symptoms owners cite: 'Battery too cold plug into warm' warning message; Check engine light illumination; Vehicle refuses to start despite normal temperature range; Burning plastic odor while engine running; Message displayed while in motion
Repairs/costs cited: Battery module replacement required. High-voltage battery contains three modules; failed sensor necessitates module swap.
Sudden loss of power/stall while driving
Vehicle stalls and loses all electrical power without warning while moving. May occur while under full electric charge. Requires restart attempt; no propulsion until restarted. Occurs at various speeds including highway speeds (65-70 mph).
When: Unpredictable; reported at mileages 48k-162k miles and after software updates
Symptoms owners cite: Complete loss of power and engine shutdown; Check engine light illumination; Vehicle stalls in traffic or on highway; Steering becomes very heavy or unresponsive; Loss occurs suddenly without warning
Repairs/costs cited: Dealer unable to duplicate failure in some cases. Software reprogram attempted; battery replacement considered necessary in some cases.
Recalls/TSBs owners mention: Software issue identified and fix made in December 2018 for some units; failure recurred post-fix for at least one owner.
Reduced propulsion mode activation and degraded performance after software update
After 2019 HPCM recall reprogramming to address battery cell-rebalancing issues, vehicle's EV range degraded significantly (36-38 miles pre-recall to 28-32 miles post-recall) and engine runs unexpectedly at normal temperatures (40-65F). Charge system now indicates service required; charging capability reduced.
When: Post-November 2019 HPCM reprogramming at 141,301 miles; degradation persisted through 2020
Symptoms owners cite: EV range decreased from 36-38 miles to 28-32 miles after recall; Engine runs at normal operating temperatures (40-65F) contrary to prior behavior; Vehicle speed drops when engine engages, creating safety hazard in traffic; Battery no longer charges properly; 'Charging system service required' message appears; Screen no longer displays temperature-triggered engine run information
Repairs/costs cited: Dealer and GM claim vehicle functioning correctly. Battery replacement suggested by some dealers; owners dispute this is consequence of failed HPCM reprogramming.
Recalls/TSBs owners mention: 2019 GM HPCM recall program (reprogramming to fix PPR battery issue); some owners allege recall created new problems. GM/dealer deny malfunction and rely on diagnostic codes to dispute owner claims.
Accidental start/stop button activation causing unintended shutdown
Start/stop button located immediately next to drive mode selector button is too easily activated unintentionally. Button can shut down the vehicle at highway speeds (up to 70 mph) during normal driving, creating dangerous loss of power and steering.
When: Occurs during normal driving when button pressed accidentally while changing drive modes; at 65-70 mph highway speeds
Symptoms owners cite: Vehicle shuts off without driver intent; Loss of power and power steering; Vehicle cannot be restarted until foot placed on brake and vehicle shifted to Park; Sudden deceleration forcing unsafe lane changes
Express window-down feature accidentally activated via key fob pocket pressure
When key fob carried in owner's pocket, inadvertent pressure on unlock button for 5 seconds triggers all four windows to lower via express-down feature. Owner unaware windows are open; rain enters vehicle saturating interior and seats. Moisture then triggers passenger-side airbag occupancy sensor malfunction.
When: Occurs while vehicle parked and key fob in owner's pocket for extended period
Symptoms owners cite: All four windows lower unexpectedly while parked; Owner unaware windows are down; Rain enters vehicle; 'Service airbag' warning light appears on dashboard; Airbag occupancy sensor malfunction follows moisture intrusion
Repairs/costs cited: Dealers blame owner for wet seat; offer little assistance. Some dealers claim airbag sensor defective due to moisture damage.
Recalls/TSBs owners mention: No documented manufacturer response. Express window-down feature cannot be disabled via vehicle menu settings.
Carbon monoxide poisoning risk when vehicle left running unintentionally
Due to silent electric motor, driver can easily forget to power down vehicle before exiting. When battery depletes while parked (engine then auto-starts to recharge), vehicle runs unattended in garage with engine cycling to maintain charge, filling garage with carbon monoxide. Documented case of three people hospitalized with CO poisoning.
When: Occurs when driver exits vehicle without pressing power button; engine auto-starts during parked battery decharge cycle
Symptoms owners cite: Vehicle continues running unattended in garage; Engine cycles on/off as battery discharges; Garage fills with carbon monoxide; Occupants experience headache, weakness, chest pain, palpitations, dizziness; Carboxyhemoglobin levels elevated (>15% in documented case)
Repairs/costs cited: No repair; design mitigation required.
Recalls/TSBs owners mention: GM recalled 2011-2013 Volts (approximately 64,000 units) in March 2015 following documented CO poisoning incident to install software updates preventing CO risk when driver forgets to shut off vehicle.
High-voltage charging system warranty coverage flip-flopping
EVSE charging cable failures occur within warranty period. GM altered warranty coverage classification mid-warranty from Voltec-only to bumper-to-bumper, then refused extended coverage. Earlier partial recall (2012-2013) covered only select VIN blocks; remaining 2012 units denied coverage despite identical cable design.
When: Cable failures requiring replacement; warranty coverage changed December 1, 2017 during ownership
Symptoms owners cite: EVSE charging cable stops working; Unable to charge vehicle at home; Vehicle cannot operate in EV mode without home charging capability
Repairs/costs cited: Cable replacement required; ~10,000 2012 Volt units with failed cables remain uncovered by GM.
Recalls/TSBs owners mention: GM recalls limited VIN blocks 2011-2012 (2012-2013 campaign). Refuses to extend coverage to remaining 2012 model year units despite identical failure mode. CEO involvement requested by owner; no resolution provided.
Battery voltage loss and low-voltage limp-home mode activation
High-voltage battery cell balancing function disabled by prior software update to VICM (Vehicle Interface Control Module). Vehicle enters low-voltage 'limp-home' mode then shuts down completely. Owners report sudden power loss mid-drive.
When: Occurs after software updates; mileage varies widely
Symptoms owners cite: Sudden loss of power during driving; 'Low propulsion mode' or 'reduced propulsion' error messages; Vehicle enters limp-home mode with severely reduced acceleration; Vehicle shuts down completely; Check engine light illumination
Repairs/costs cited: Dealers recommend battery replacement (~$6000); software update cited as root cause by owners.
Recalls/TSBs owners mention: Software issue acknowledged for some units; battery replacement recommended at owner expense despite root cause being software.
Synthesized from 79 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
At random times and days, when starting the car, the center lcd display is blank. This display is crucial for the safety of the vehicle because it displays your speed, the battery life and gas tank amount, turn signal indicators as well as other important details needed when driving. It's not safe to drive this car when the vehicle's screen is blank. This has happened 4 times. 3 of the 4 just…
The driver's info screen (speed, odometer, remaining fuel, warning lights, turn signals, safety messages, etc.) went blank while I was driving. It intermittently comes back on, but goes blank again.
Grandson was driving and went to brake to make a turn and the engine not available light came on and he had no brakes. He was unable to slow and take the turn and hit a truck in the front driver quarter panel which resulted in the car being a total loss.
The contact owns a 2012 Chevrolet Volt. The contact stated while driving approximately 50-60 MPH, the Engine Failure, Mountain Mode Not Available, Battery at Zero Percent, Propulsion Power Reduced, and High Voltage messages were displayed. The check engine warning light illuminated. The vehicle then inadvertently decelerated to 30-40 MPH. The contact pulled over to the side of the roadway and…
Had electrical trouble with your 2012 Chevrolet Volt?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2012 Chevrolet Volt?
It's a meaningful issue. 79 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 64 complaints that reported odometer mileage, most electrical failures cluster between 50,000 and 119,000 miles, with the median around 86,000. A quarter of owners report trouble before 50,000; a quarter make it past 119,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/Chevrolet/Volt.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.