Car lost engine power while driving over 60mph on the expressway. *js
2012 Chevrolet Traverse electrical problems
moderate 30 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
30
Recalls
0
Avg fix
$850
What stands out
Owners have filed 30 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.
No new NHTSA electrical complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2012 Traverse shows a pattern of serious electrical and engine control failures—alternators dying prematurely, engines stalling without warning, and multiple warning light issues that persist despite repeated repairs. This is not a safe daily driver, especially with passengers or on highways; many owners report being stranded with no hazard lights or power steering at speed.
The 2012 Traverse electrical cluster contains multiple distinct failure modes. Alternator and charging system failures cause complete loss of electrical power while driving—engine shuts off with no warning, power steering goes out, transmission locks in Park, and hazard lights fail, leaving drivers stranded in traffic. This happens well under 50,000 miles and within three years on vehicles owners describe as well-maintained.
Engine stalling occurs without warning, sometimes at highway speeds. Owners replace fuel pumps, sensors, and relays only to have the engine shut down again. Trouble codes return immediately after clearing. One owner reports replacing the engine three times on the same vehicle.
Traction control and stability control lights illuminate repeatedly during acceleration, the vehicle refuses to accelerate or loses power, and the system resets only temporarily. Owners find suspected wire harness issues under seats that dealers say don't apply to their VINs.
Ignition switches fail, causing the engine to shut off mid-drive or the switch to physically fall out of the On position. Park assist speakers fail intermittently, creating a safety gap during backing.
Headlights, wipers, door locks, and power windows malfunction unpredictably. Some owners replace headlights three times in three months. The power liftgate doesn't stay open and slams down on occupants. Catalytic converters fail repeatedly on the same vehicle.
Air bag warning lights persist even after sensor and tensioner replacement, suggesting wiring issues underneath seats. One owner reports a specific recall for seat belt pretensioners that the dealership never notified them of and wants to charge a diagnostic fee to address.
Same Chevrolet Traverse electrical reports on nearby years: 2009 · 2010 · 2011 · 2013 · 2014
Failure modes owners describe
Alternator/Charging System Failure
Premature alternator and charging system failures cause complete electrical power loss while driving, with no warning or after brief warning lights (Battery Saver Active, Service Battery Charging System). Vehicle loses all electrical components—engine shuts off, power steering and braking become difficult, dash lights go dark, hazard lights non-functional, transmission locks in Park. Multiple owners report failure well under 50,000 miles and within 3 years.
When: Under 50,000 miles; under 3 years old; occurs during highway driving at speed (45–70 mph) and low-speed driving
Symptoms owners cite: Complete loss of all electrical power while driving; Engine stalls without warning or after brief warning lights; No power steering; Transmission locks in Park; no way to shift out; Dashboard lights dim or go dark; Hazard lights and interior lights non-functional; Battery warning light, traction control light, stability control light illuminated before failure
Codes mentioned: Battery Saver Active, Service Battery Charging System, Service Traction Control, Service Stabilitrak
Repairs/costs cited: Alternator replacement cost $607–$1,400 at dealership
Engine Stalling and Power Loss (Intermittent/Multiple Causes)
Engine shuts off or loses power without warning during driving. Some owners report trouble codes P0017, P0018, P0019 (camshaft/crankshaft position codes) that persist after sensor replacement. Others describe reduced engine power while accelerating, vehicle unable to exceed 20–40 mph after stall event. Mechanics replace fuel pump, sensors, relays, and throttle body; failure recurs. One owner reports 3 engine replacements on the same vehicle.
When: Various; reported from 51,000 to 92,739 miles; occurs during highway driving (45–70 mph) and low-speed city driving; intermittent—may restart after sitting or clearing codes
Symptoms owners cite: Engine shuts off while driving without warning; Violent shaking and sputtering before stall; Reduced engine power / inability to accelerate beyond 20–40 mph; Check Engine light illuminated; returns immediately after code clear; Traction control, stability control, and reduced engine power warnings; Engine slow to start; Engine locks up (mentioned in one complaint)
Codes mentioned: P0017, P0018, P0019, Check Engine Light (code not specified in most)
Repairs/costs cited: Fuel pump replacement ($300); sensor replacement (multiple); relay replacement; throttle body cleaning; one owner on 3rd engine replacement; one complaint: $15,000+ spent on repairs for vehicle purchased at $17,000
Traction Control and Stability Control System Malfunction
Service Traction Control and Service Stabilitrak warnings illuminate intermittently or continuously during driving. Vehicle loses power to accelerate, instrument panel fails, and electronics reset unpredictably. Some owners report disconnecting battery to clear fault, only for lights to return within 5–10 minutes or days. One owner notes suspected wire harness issue under driver/passenger seats (recalled on other GM models) but dealership says VIN not included.
When: Reported from 40,000 to 92,739 miles; some intermittent, some persistent; occurs during acceleration and highway driving
Symptoms owners cite: Service Traction Control light illuminates; Service Stabilitrak light illuminates; Traction Control turned off message displayed; Vehicle unable to accelerate or severely limited acceleration; Reduced engine power warning; Instrument panel failure or reset; Radio switches stations or display malfunctions; Lights return immediately after diagnostic code clear
Codes mentioned: Service Traction Control, Service Stabilitrak, Reduced Engine Power
Repairs/costs cited: Owners report disconnecting battery as temporary fix; no permanent repair found by dealerships; one owner mentions yellow wire harness recall (other GM models) but VIN exclusion prevents coverage
Recalls/TSBs owners mention: GM aware of engine fuse box wiring and terminal issues (per complaint #1); yellow wire harness recall exists for similar GM vehicles but VIN exclusion applied in at least one case
Ignition Switch Failure
Ignition switch shuts off engine while driving or fails to remain in the On position. Engine stalls without warning. One owner reports ignition fell out of On position while driving. Another notes ignition switch is a known issue on GMC/Chevy models but no recall applied.
When: Various mileages; one failure at 35 mph on rural road; one on highway
Symptoms owners cite: Engine shuts off while driving; Slow engine start; Ignition switch falls out of On position; Steering wheel locks
Recalls/TSBs owners mention: No recall despite documented issue on other GM models
Air Bag Warning Light Malfunction
Service Air Bag light illuminates intermittently on instrument cluster as icon and text. Light persists even after impact sensor and tensioner kit replacement. One owner reports wiring failure underneath front passenger seat. Another notes driver seat belt lap anchor pretensioner recall coverage but dealership failed to notify owner and demanded diagnostic fee.
When: Reported from 40,000 to 51,000+ miles; intermittent; light comes on while driving, at startup, or on flat roads with no impact
Symptoms owners cite: Service Air Bag light illuminates and persists intermittently; Air bag warning in text on driver display; Light returns within days or weeks after replacement
Codes mentioned: Air Bag Warning
Repairs/costs cited: Impact sensor replacement ($254.15); tensioner kit replacement; wiring repair needed under front passenger seat (diagnosed but not repaired by some dealerships)
Recalls/TSBs owners mention: Special coverage recall for driver seat belt lap anchor pretensioner inspection/replacement exists; dealership failed to notify owner in complaint #1
Headlight and Electrical Control Failures
Headlights fail and turn off unexpectedly during driving. One owner replaced headlights 3 times in 3 months; lights still fail. Wipers malfunction—passenger side stops working; driver side requires high setting to operate. Door locks and window switches become inoperative. Radio display and speakers work intermittently.
When: Various; one owner reported 3 replacements in 3 months
Symptoms owners cite: Headlights shut off while driving; Passenger side wiper non-functional; Driver side wiper requires high setting to operate; Door locks do not respond; Power windows do not operate; Radio display and speakers intermittent; All headlight replacements new but still fail
Repairs/costs cited: Headlight replacement (3 times in 3 months for one owner)
Park Assist System Malfunction
Park assist feature and associated speakers work intermittently. When speakers and radio display malfunction, park assist does not function correctly, creating a safety hazard. One owner notes the system is connected to speaker output and Engine fuse box wiring/terminal issues affect operation.
When: Intermittent; occurrence not specified by mileage
Symptoms owners cite: Park assist unable to be heard; Park assist works intermittently; Park assist non-functional when speakers fail; Difficulty backing up safely due to missing audio cues
Repairs/costs cited: $1,500+ for A/C line repair also affected park assist speaker connections in at least one case
Recalls/TSBs owners mention: GM aware of Engine fuse box wiring and terminal issues
A/C Line Rubbing and Leakage
A/C refrigerant line located from under hood to rear of vehicle rubs against other lines (power steering hoses) and engine components due to design/routing issue. Friction creates holes in the line, causing refrigerant leaks. Coolant mist enters cabin through vents, exposing occupants to toxic vapors. Potential fire hazard if coolant leaks onto hot engine components. Repair requires full line replacement.
When: Occurs during normal operation; complaint date 7/19/2024
Symptoms owners cite: A/C refrigerant leak; No cold air from A/C; Hissing sounds from vents; White vapor/smoke from vents; Toxic vapor odor in cabin; Occupants breathing in toxic coolant mist
Repairs/costs cited: A/C line replacement $1,500+
Power Liftgate Failure
Power liftgate opens via key fob but does not remain open. Makes loud noise when fully extended. Door begins closing immediately, endangering occupants. Manual mode also fails to keep door open. Issue documented across multiple GM platforms (Saturn Outlook, Acadia, Traverse, Enclave, Equinox) since 2007 but not recalled.
When: Occurs during normal use of power liftgate
Symptoms owners cite: Power liftgate does not stay open; Loud noise when fully extended; Door begins closing immediately after opening; Door closes on occupant; Manual mode fails to hold door open
Recalls/TSBs owners mention: Known issue since 2007 on multiple GM models; no recall
Transmission Issues
Transmission fails to engage Drive after electrical power loss or battery drain event. Vehicle will only move in Reverse; shifts to Neutral and vehicle locks up. Unable to drive in forward direction. Requires jump-start and extended rest time before Drive engages again.
When: Occurs after cold weather battery drain or electrical failure event
Symptoms owners cite: Will not shift into Drive; Only Reverse works; Vehicle locks up in Neutral; Unable to accelerate beyond 35 mph when Drive finally engages; Requires jump-start to attempt operation
HVAC Blower Malfunction
Blower motor fails completely; A/C and heat do not operate. One owner reports air conditioning blows hot air unintentionally. Another reports heat blows constantly even when set to cool. Blower does not respond to controls.
When: Various
Symptoms owners cite: Blower motor non-functional; No A/C or heat output; A/C blows hot air; Heat blows continuously regardless of setting
Engine Computer/PCM Reboot During Driving
Vehicle computer system shuts down and reboots while driving at highway speeds (70 mph). Traction Control light illuminates, Check Engine light comes on, then computer resets. Occurs multiple times; owner states GM customer service indicated this is normal.
When: Intermittent; occurs during highway driving at 70 mph
Symptoms owners cite: Traction Control Activated light illuminates; Check Engine light illuminates; Computer reboots; Loss of vehicle control during reboot
Codes mentioned: Traction Control Activated, Check Engine
Recalls/TSBs owners mention: GM customer service stated this is normal behavior
Fuel Tank/Gas Cap Filling Issue
Vehicle gets stuck when attempting to add fuel. Car struggles to turn over until fuel tank is pressurized or cap is cycled. Each refueling event produces smell of leaking gasoline.
When: Occurs with each fuel fill-up
Symptoms owners cite: Car gets stuck trying to turn over during or after refueling; Requires pumping gas to free up engine; Gasoline smell after refueling; Smell worsens when turning left or right
Turn Signal and Lighting Control Failure
Left turn signal and left headlight require frequent replacement. Same component replaced 3 times in 3 months; failures recur. Electrical connector or wiring issue suspected.
When: Multiple failures within 3-month period
Symptoms owners cite: Left turn signal inoperative; Left headlight fails repeatedly; New parts fail quickly after replacement
Repairs/costs cited: Headlight and turn signal replacement (multiple in short timeframe)
Catalytic Converter Failure (Recurrent)
Catalytic converter fails repeatedly—one owner on 4th replacement. Vehicle feels like it is bogging down when pressing accelerator, as if clogged. Engine pulsates. Check Engine light illuminated.
When: Multiple failures; 4th occurrence reported
Symptoms owners cite: Engine bogs down under acceleration; Engine pulsates; Check Engine light on; Frequent converter failure
Codes mentioned: Check Engine
Repairs/costs cited: Catalytic converter replacement (4+ times for one owner)
Synthesized from 30 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had electrical trouble with your 2012 Chevrolet Traverse?
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 Traverse?
It's a documented issue but not catastrophic. 30 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 23 complaints that reported odometer mileage, most electrical failures cluster between 56,900 and 129,000 miles, with the median around 100,000. A quarter of owners report trouble before 56,900; a quarter make it past 129,000. 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/Traverse.
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.