The 2013 Volt's electrical architecture shows systemic failures across charging, propulsion, and safety systems. Most serious: a charging-port fire occurred at a public ChargePoint station with flames, white smoke, and complete vehicle loss, though the manufacturer declined to investigate. The main hybrid battery refuses to charge despite numerous sensor and coolant replacements; owners spent hundreds on diagnostics chasing a suspected software bug that persists through service bulletins.
Loss-of-propulsion events strike unpredictably on freeways at 65–70 mph, with the engine cutting out and dashboard warnings appearing too late. Dealers blame the driver or refuse warranty coverage, sometimes misdiagnosing transmission failure instead of engine module problems. Owners report the car gets worse during dealer service, not better.
Dashboard failures are rampant: instrument clusters go black (no speed, fuel, battery display), infotainment screens freeze or blackout (quoted $1,200+ to replace), and a design flaw places the power button next to the drive-mode button—owners have accidentally killed all systems at highway speed in darkness. An unrelated but dangerous issue: leaving the Volt powered on while plugged in triggers unintended generator startup at extremely high RPM in garages, creating heat hazards. Passenger airbag sensors fail, cycling on and off every 2–3 minutes, and multiple owners confirm seeing aftermarket bypass kits sold online because the problem is so widespread Chevrolet hasn't fixed it. Multiple electrical system crashes have been reported, with one resulting in a multi-car collision.
Failure modes owners describe
Charging system fire and electrical shorting
Charging port or EVSE (charging station equipment) shorting internally, causing audible arcing sounds, flames, white smoke, melted charging handles, and vehicle fire. Insurance, firefighters, and police on-site attributed damage to external EVSE failure; manufacturer disagreed but offered no alternative explanation. No alternative defect found in vehicle post-fire inspection.
When: At public ChargePoint charging station; occurred unpredictably after routine charging use
Symptoms owners cite: Audible shorting sound from charging handle; Burst of flames and white smoke during charging; Darkening smoke indicating ongoing combustion; Melted charging station handle and neighboring vehicle side mirror; Complete vehicle fire resulting in total loss; Locked doors trapping occupant inside
Repairs/costs cited: Not repairable—vehicle totaled. Charging handle parts no longer available except through ChargePoint manufacturer.
Recalls/TSBs owners mention: ChargePoint disagreed with fire department/police/owner assessment but provided no alternative cause explanation.
Uncontrolled engine startup when vehicle powered on during charge
When a Volt is left powered on (not shut down via power button) while plugged in to charge, the gas generator self-initiates at high RPM without operator input. Battery depletion triggers generator ignition even while charging, parked, with charge port open, no driver present, or vehicle in park. No warning given if vehicle is powered on (only orange charge light instead of beep and green light). Dangerous heat buildup in garage.
When: While vehicle plugged in to home charger; occurs after 4–5+ hours if power button not deliberately pressed to shutdown
Symptoms owners cite: Generator running at very high RPM unintentionally; Extreme heat buildup in garage (handle too hot to touch, concrete underneath too hot 10 hours later); Nearly complete fuel consumption (~10 gallons = ~190 lbs CO2 in enclosed garage); No operator warning if vehicle powered on vs. off during charging; Center console remains lit even when powered down (confusing to user)
Repairs/costs cited: Dealer repaired heat damage after incident. Owner tested scenario repeatedly and confirmed generator will self-start under the stated conditions.
Recalls/TSBs owners mention: None reported; no recall or TSB mentioned.
Loss of propulsion on highway with no advance warning
Vehicle suddenly loses driving power on freeway at highway speed after displaying 'Loss of Propulsion' and/or 'Propulsion Power Reduced' warning. Engine stops, car slows to a crawl or complete stop in moving traffic. Can be restarted after power-cycling vehicle, but propulsion remains limited. Multiple owners report this at 65–70 mph with 6–9 miles of battery remaining. Dealers often diagnose transmission module or propulsion battery failure but attribute problem to driver or refuse repair under warranty/recall.
When: While driving at 60–70 mph; typically when battery nearing depletion and transitioning to gas engine, or in heavy traffic
Symptoms owners cite: Loss of propulsion warning message on dashboard; Check engine light illumination; Sudden power loss and speed reduction mid-highway drive; Vehicle slows to 25–30 mph in 65–70 mph zone; Engine not available message; Whining noise from transmission reported in one case; Reduced electric range after incident (32–34 miles vs. previous 42–44 miles)
Codes mentioned: P0000 (general—multiple check engine codes reported, up to 8 on one vehicle)
Repairs/costs cited: Dealer diagnostics suggest transmission module or propulsion battery replacement ($430+ diagnostic fee, thousands in repair cost). Transmission module replaced in some cases instead of engine module. Repairs often incomplete or refused; problem sometimes reappears or worsens during dealer service.
Recalls/TSBs owners mention: Some owners report dealership claims this is covered under recall (18V397000 mentioned) but others refused warranty coverage. Chevrolet blamed drivers in at least one case.
Accidental power shutdown due to button placement
Power button placed immediately adjacent to Drive Mode button on center console. Both require multiple deliberate presses to function. Driver attempting to adjust drive mode button hits power button instead, killing all electrical power (headlights, dashboard, engine) at highway speed in darkness. Creates immediate collision hazard.
When: While driving at 65 mph in low-light conditions; occurred during intentional drive-mode adjustment
Symptoms owners cite: All interior lights go black; Headlights turn off automatically at highway speed in darkness; Dashboard goes dark; Loss of all instrument visibility; Vehicle becomes difficult to control and steer in darkness
Repairs/costs cited: No repair needed; user error. However, design issue permits easy misactivation.
Recalls/TSBs owners mention: No manufacturer response mentioned. Multiple owners report same complaint on GM Volt forums, suggesting design awareness.
Random loss of electrical power while driving
Electrical system suddenly loses power mid-drive without operator input (no button pressed). Dashboard, instrument cluster, and all electrical systems black out. Power may return on its own or after power-cycling vehicle. ECU reflashing attempted by dealers without success. Owners report inability to recreate problem at dealership.
When: Unpredictably while driving; reported at 65 mph in traffic and on freeway
Symptoms owners cite: Complete electrical blackout while driving (no dashboard, instruments, or lights); Loss of propulsion during power loss; Rapid speed reduction and near-stop condition; Dashboard lights flickering or going dark intermittently; OnStar diagnostics showing electrical system, braking system, engine faults
Codes mentioned: Multiple ECU codes reported (flashing performed but did not resolve)
Repairs/costs cited: ECU reflashing attempted by dealers multiple times without resolution. Dealers unable to recreate failure and declined further diagnosis.
Recalls/TSBs owners mention: OnStar contacted; no permanent fix provided by manufacturer.
Infotainment/instrument cluster blackout
LCD infotainment screen or instrument cluster goes completely black and unresponsive. Occurs repeatedly and often after sitting unused for days. Button lights may flicker on/off intermittently. Screen freeze followed by blackout reported. Owners cite online reports of widespread failures after 36,000 miles. Loss of backup camera, radio, sensor display, and speed/fuel/battery information creates safety hazard and loss of vehicle functionality.
When: Intermittently; some failures after 36,000+ miles; some after sitting unused for days
Symptoms owners cite: Instrument cluster completely black (no speed, fuel, battery level, warning indicators visible); LCD infotainment screen goes blank; Screen freezes then turns black; Button lights intermittently turn on and off; Backup camera, radio, and sensor displays inoperative; Loss of climate control display (AC control by trial and error)
Repairs/costs cited: Dealers quote $1,200+ for new instrument cluster replacement. Acknowledged by dealership as recurring (frequent) failure outside warranty coverage.
Recalls/TSBs owners mention: Dealership acknowledgment that 'these things go often' but no recall or warranty extension offered.
High voltage charging system error and battery charging failure
Vehicle displays 'Service High Voltage Charging System' warning and refuses to charge the main hybrid battery, despite normal charging equipment connection. Error persists through multiple service visits, sensor replacement, coolant level adjustment, and coolant sensor replacement. Error triggers false positive code preventing smog check completion. Likely software or sensor calibration issue rather than hardware defect, per owner reports. Thousands of dollars spent on diagnostic troubleshooting and unnecessary parts replacement.
When: Intermittently after normal charging attempts; some failures after years of use; some recur within hours of repair
Symptoms owners cite: High voltage charging system error message on dashboard; Battery will not charge when plugged in; False error code persists after parts replacement; Low battery coolant level warning; Reduced electric range forcing gas engine reliance; Light returns after vehicle sits off for 1–2 hours
Codes mentioned: Service High Voltage Charging System (generic code, software suspected)
Repairs/costs cited: Coolant sensor replacement, coolant bypass valve replacement, battery coolant level top-off attempted. Parts replacements ineffective. Mechanics unable to determine root cause; suspected software bug or calibration error.
Recalls/TSBs owners mention: Dealer suggested 'drive car so battery can learn driving habits' (no effect). Service bulletin performed. No permanent fix offered. 8-year battery warranty expired; owner quoted $5,300 for battery rebuild.
12-volt battery failure
12-volt auxiliary battery fails prematurely, preventing vehicle startup or propulsion system function. Multiple owners report 2+ failures within 36,000 miles. Failure may occur independent of main hybrid battery or after main battery issues.
When: Early in vehicle life; multiple failures within first 36,000 miles reported
Symptoms owners cite: Vehicle will not start; Engine not available message; Loss of propulsion power; 12V battery voltage too low to power main systems
Repairs/costs cited: 12-volt battery replaced by dealer at unknown cost (likely warranty in some cases).
Recalls/TSBs owners mention: Replacement covered under original warranty in some cases.
High-voltage battery overheating and thermal event
Main hybrid battery pack (located under center console) overheats dramatically, creating loud noise inside cabin and extreme heat. Owner sustained burn injury to shoulder. After parking and shutting off vehicle, car rolled backward due to related electrical/mechanical failure. Battery overheating suggests internal short circuit or thermal runaway condition.
When: During or after normal driving; triggered by unknown cause
Symptoms owners cite: Loud noise from battery pack under center console; Extreme heat emanation from center console area; Owner burn injury (right shoulder, no medical treatment sought); Vehicle rolls backward after power-off while parked in garage; Heat buildup in closed vehicle
Repairs/costs cited: No repair parts listed. Owner received burn injury requiring observation.
Recalls/TSBs owners mention: Manufacturer informed. Owner told vehicle not included in NHTSA Campaign 18V397000 despite matching recall symptoms.
Transmission failure or malfunction
Transmission develops whining noise and fails to engage or control power delivery. Typically diagnosed after loss of propulsion event. Dealers recommend transmission module replacement at significant cost. May occur in conjunction with engine module issues but dealers sometimes replace wrong component (transmission instead of engine module).
When: After loss of propulsion event; at high mileage (78,000+) or after power loss incident
Symptoms owners cite: Whining noise from transmission; Loss of power delivery; Vehicle stalls or fails to accelerate; Transmission module failure code
Repairs/costs cited: Transmission module replacement quoted by dealers; not always performed due to warranty disputes.
Recalls/TSBs owners mention: Dealership service recommendations; warranty coverage often disputed.
Engine stall or failure to start gas generator
Gas generator engine stalls unexpectedly while running or fails to start when battery depleted. Vehicle displays 'Engine Not Available' or reduced propulsion warnings. Engine may fail to restart, leaving vehicle immobilized on roadway. Occurs typically when transitioning from battery to gas power during low battery conditions.
When: When battery depleted and vehicle transitioning to gas engine; at speeds 15–70 mph
Symptoms owners cite: Engine stalls without warning; Engine not available message; Reduced propulsion warning; Vehicle will not restart after stall; High engine revving (then shutdown) during low-battery transition; Check engine light illumination; Yellow engine indicator light
Repairs/costs cited: Vehicle towed to dealership; repair status unknown for most reports.
Recalls/TSBs owners mention: No response reported.
Electrical relay/fuse block failure
RAP (Retained Accessory Power) relay loses signal at fuse block, disabling all electrical ports and accessories. Relay clicks on and off repeatedly while driving. Creates emergency situation if electrical failure occurs on highway (loss of power brakes, lighting, steering assistance).
When: While driving; clicking relay noise precedes electrical loss
Symptoms owners cite: No signal at fuse block for RAP relay; All electrical ports non-functional; Frequent clicking of relay switch on/off on left dash; Symptom triggered by tire puncture need (owner unable to use power tire inflator due to port failure)
Repairs/costs cited: Vehicle towed to dealership for repair; repair outcome unknown.
Recalls/TSBs owners mention: None reported.
Passenger airbag sensor and presence module malfunction
Passenger presence sensor or seatbelt sensor fails, causing airbag to activate and deactivate repeatedly (every 2–3 minutes) when passenger seated, or remain stuck on when seat empty. Service airbag warning displays intermittently. Dangerous if airbag is disabled during collision. Multiple owners report same issue. Aftermarket bypass kits exist, indicating widespread known problem.
When: Intermittently and repeatedly during vehicle operation; affects passenger seat only
Symptoms owners cite: Airbag turns on and off repeatedly (every 2–3 minutes) when passenger present; Airbag stays on when no passenger seated (false activation); Service airbag warning message; Intermittent airbag deployment risk during collision
Repairs/costs cited: Passenger presence module quoted at $700 replacement cost. Aftermarket bypass kits sold to disable system entirely (unsafe workaround).
Recalls/TSBs owners mention: Manufacturer issued three TSBs for airbag wiring per one report; no recall issued.
Headlight failure
Headlights become inoperable without warning while driving at night. No warning light illuminated on dashboard. Driver must rely on hazard lights and ambient light to navigate.
When: While driving at 45 mph in evening/night conditions
Symptoms owners cite: Headlights suddenly inoperable; No warning light on dashboard; Loss of forward visibility
Repairs/costs cited: Vehicle towed; dealership unable to duplicate failure, did not repair.
Recalls/TSBs owners mention: Manufacturer not notified.
Complete electrical system failure during driving
Entire electrical system crashes mid-drive in rush-hour traffic. Loss of brakes (antilock braking system fail), power steering, horn, airbags, and all electrical systems simultaneously. Results in multi-vehicle collision with injuries.
When: While driving in rush hour traffic
Symptoms owners cite: Complete electrical system crash; ABS braking system failure; Power steering loss; Horn inoperable; Airbags non-functional; Multi-vehicle collision resulting from loss of control
Repairs/costs cited: Not provided; vehicle involved in collision.
Recalls/TSBs owners mention: Not reported.
Unintended generator startup in garage
Gas generator self-initiates at very high RPM while vehicle sitting in garage plugged in to charger. Creates dangerous heat buildup and potential carbon monoxide hazard in enclosed space. Vehicle was not in use and no driver present.
When: While parked in garage with vehicle plugged in; occurs when vehicle powered on and battery depletes
Symptoms owners cite: Generator runs at very high RPM unintentionally; Extreme heat in garage (concrete too hot to touch); Smoke/fumes in enclosed space; Doors locked (preventing emergency exit); Carbon monoxide buildup in garage
Repairs/costs cited: Dealer repaired heat damage after incident.
Recalls/TSBs owners mention: No warning or design change implemented.
Shift-to-park error message when already in park
Vehicle displays 'Shift to Park' error message even though transmission is already in park position. Error persists when vehicle is powered off and parked. Occurs repeatedly across multiple vehicles (owner reports owning 4 Volts, all with same issue). Suggests transmission position sensor calibration defect.
When: When vehicle placed in park and powered off; intermittent or persistent
Symptoms owners cite: Shift to park error message displays; Message appears even with vehicle powered off; Vehicle transmission actually in park position; Message clears briefly then returns
Repairs/costs cited: No repair attempted; owners accept as known design issue.
Recalls/TSBs owners mention: None reported.
Charging port failure
Charging port system becomes inoperable, preventing vehicle battery from charging. May be combined with high voltage charging system error. Diagnosis suggests port replacement needed.
When: After extended vehicle use; at 87,000+ miles
Symptoms owners cite: Service high charging system warning; Propulsion power reduced warning; Vehicle unable to charge battery when plugged in
Repairs/costs cited: Charging port replacement required; one owner's son performed the repair.
Recalls/TSBs owners mention: Manufacturer notified; no recall or TSB mentioned.
Throttle response issues and engine control malfunction
Engine stalls or cuts out on low-battery gas engine mode. Driver must tap throttle repeatedly to keep engine running. Engine revs sharply in low gear without corresponding acceleration. Suggests fuel delivery or ignition control defect during generator operation.
When: When vehicle running on gas engine after battery depletion
Symptoms owners cite: Engine stalls and requires repeated throttle taps to keep running; Sharp engine revving in low gear with minimal acceleration response; Loss of smooth throttle response
Repairs/costs cited: No repair reported; owner describes workaround (tapping throttle).
Recalls/TSBs owners mention: Not reported.
Drive mode button causing full electrical shutdown
Drive mode button depression triggers complete electrical power loss. Different from power button; suggests software/hardware conflict in button matrix or power management circuit.
When: After vehicle in use for short time (7,500 miles)
Symptoms owners cite: All electrical power lost after drive mode button press; Vehicle must be restarted to restore power
Repairs/costs cited: No repair performed.
Recalls/TSBs owners mention: Manufacturer notified.
Window auto-down malfunction
All window motors deploy simultaneously and lower windows without operator input. Electrical or body control module software error. Occurred multiple times requiring three dealership repair visits.
When: Intermittently during vehicle operation
Symptoms owners cite: All windows roll down in unison without button press; Uncontrolled window movement
Repairs/costs cited: Repaired three times at dealership; issue recurred.
Recalls/TSBs owners mention: No recall or permanent fix offered.
Electrocution hazard from charging connector
Three-prong charging connector prongs burned owner's arm while unplugging, indicating electrical arcing or fault in connector design. Owner reports sensation of high-voltage shock, loss of consciousness, and lasting neurological and physical effects.
When: October 2016, while unplugging charging connector
Symptoms owners cite: Charging connector prongs caused electrical burn to arm; Electrical shock sensation described as impact at 100 mph; Loss of consciousness; Lasting arm nerve damage and fatigue/neurological effects
Repairs/costs cited: No repair; medical issue reported.
Recalls/TSBs owners mention: Chevrolet did not respond to earlier complaint about gas pedal issue; no response to electrocution incident reported.
Water leak into electrical compartment
Water enters vehicle body and pools in front passenger floorboard where electrical components are located. Structural design flaw allows water ingress in wet conditions. Creates short circuit and electrical component failure risk.
When: During wet/rainy conditions
Symptoms owners cite: Water pooling in front passenger floorboard; Electrical component exposure to moisture
Repairs/costs cited: No repair described.
Recalls/TSBs owners mention: None reported.
Engine starter or ignition control failure
Gas engine starts briefly then shuts down and enters service mode immediately without operator input. Disables both gas engine and electric motor simultaneously.
When: While parked in cold or warm ambient temperature; engine running due to thermal regulation
Symptoms owners cite: Gas engine starts for a few seconds then shuts down; Vehicle enters service mode and immobilizes both engine and motor; No dashboard button pressed by operator
Repairs/costs cited: No repair information provided.
Recalls/TSBs owners mention: None reported.
Climate control system failure
HVAC system fails to cool rear seats or cabin during hot weather (near 100°F). May be combined with window fogging and regenerative braking system performance degradation after software update.
When: During hot ambient temperatures
Symptoms owners cite: Air conditioning does not cool rear seats or cabin; Windows fog up in humid conditions; Rear passenger discomfort in extreme heat
Repairs/costs cited: No repair reported; owner requested vehicle return and purchase refund.
Recalls/TSBs owners mention: No recall or remedy offered.
Navigation system malfunction
Navigation system displays incorrect vehicle location. Reported displaying Detroit location while vehicle actually elsewhere.
When: During navigation use
Symptoms owners cite: GPS/navigation shows wrong location (vehicle in Detroit when not); Loss of accurate position tracking
Repairs/costs cited: No repair reported.
Recalls/TSBs owners mention: None reported.
Regenerative braking performance degradation
Regenerative braking system and acceleration performance degrade after software update. Reduces electric motor efficiency and battery charging during braking.
When: After software update installation
Symptoms owners cite: Reduced regenerative braking efficiency; Lower acceleration performance; Reduced battery recovery during braking
Repairs/costs cited: No repair reported; performance loss remains after update.
Recalls/TSBs owners mention: Software update applied; no rollback or correction offered.
T6 power module failure
T6 power module (high-voltage power distribution module) fails while driving at highway speed, causing complete loss of motive power. Vehicle stops without warning.
When: While driving at 70 mph on highway at approximately 118,000 miles
Symptoms owners cite: Vehicle stops without warning while driving; Complete loss of propulsion power
Repairs/costs cited: Diagnosed as T6 power module failure; not repaired by owner.
Recalls/TSBs owners mention: Manufacturer contacted; owner awaiting callback.
Synthesized from 54 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.