This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.
full bulletin at NHTSA ↗2020 Chevrolet Traverse electrical problems
severe Owners of the 2020 Chevrolet Traverse have filed 23 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Complaints
23
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2016 Traverse | 21 |
| 2017 Traverse | 19 |
| 2018 Traverse | 65 |
| 2019 Traverse | 71 |
| 2020 Traverse (this page) | 23 |
| 2021 Traverse | 21 |
| 2022 Traverse | 8 |
| 2023 Traverse | 16 |
| 2024 Traverse | 15 |
2crashes
When does it fail?
Of the 23 electrical complaints filed for the 2020 Chevrolet Traverse, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 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
No new NHTSA electrical complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
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 service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
full bulletin at NHTSA ↗This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
full bulletin at NHTSA ↗The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The electrical system on the 2020 Traverse shows a consistent failure pattern that goes well beyond isolated incidents. Owners report complete power loss at traffic lights—dash dark, doors locked, brakes inoperative, unable to call for help—while carrying infants and children. Multiple owners have experienced the auto start/stop feature causing engine stalls in traffic, followed by refusal to restart, leaving them stranded across lanes on highways during rush hour. The "Shift to Park" error message appears to be chronic: it displays when the vehicle is actually in park (preventing shutdown) or falsely triggers when the vehicle won't start even though it is in park. Owners report cycling the shifter repeatedly just to get the engine to shut off, and dealers have admitted this issue has existed since at least 2018 without resolution.
Alternators are failing well before their rated lifespan—owners report failures at 26,500, 45,000, and 57,000 miles. When the alternator dies, it takes the battery with it, forcing additional replacement costs. The surround vision camera system fails completely with no known factory fix. One owner documents water dripping directly from a drain pipe onto the body control module, causing random door locks and hazard light cycling. Instrument panels go blank mid-drive. Power steering and brakes have shut down on highway drivers. These are not minor convenience issues—they're safety-critical failures with minimal warning.
Same Chevrolet Traverse electrical reports on nearby years: 2017 · 2018 · 2019 · 2021 · 2023
Failure modes owners describe
Surround Vision System Complete Failure
Surround vision display goes dark with red hazard triangle, rendering the system completely inoperative. Occasionally intermittent at first, then permanent. Owner reports dealer has multiple vehicles with identical issue and states GM has no known fix as of late December.
When: Started day of purchase; present from December onwards
Symptoms owners cite: Dark screen with red hazard triangle on surround vision display; System fails to display camera feed
Recalls/TSBs owners mention: GM has no known fix per dealer claim; Chevrolet customer service case #9-6485705057 filed with no resolution provided
Complete Electrical Shutdown (Total Power Loss)
Vehicle completely loses power while stopped at traffic light with zero warning. All systems go dark—no lights, no hazards, no door locks, brake pedal locks, vehicle cannot shift to park, and OnStar is inaccessible. Owner reports this is a catastrophic safety failure, particularly dangerous with infant in vehicle.
When: At 4/7/24 at stop light; vehicle approximately 5 months old at failure
Symptoms owners cite: Total blackout—no power, no lights, no hazards; Brake pedal becomes stuck/immobile; Doors lock and cannot be manually opened; Vehicle cannot shift to park; All systems go offline simultaneously
Shift to Park Error (False/Intermittent)
Instrument panel displays 'Shift to Park' message when vehicle is actually in park, preventing engine shutdown. Alternatively, genuine shift-to-park errors occur when vehicle fails to start despite being in park. Error sometimes clears by repeatedly pressing shifter button. Creates safety hazard by inducing operator complacency toward a warning that may be genuine.
When: Occurs at varying mileages (reported at ~135k, also reported on newer vehicles); issue documented in 2018+ Traverses
Symptoms owners cite: 'Shift to Park' message displays on instrument panel when in park; Engine will not shut off despite being in park; Vehicle fails to start with 'Shift to Park' error even though in park; ESC warning light displayed during failure; Audible chime during failure
Codes mentioned: Shift to Park error code
Repairs/costs cited: Pressing shifter forward-facing button multiple times sometimes resolves error temporarily
Recalls/TSBs owners mention: Chevrolet has failed to acknowledge or resolve issue despite documentation since at least 2018; issue persists in 2020 models
Auto Start/Stop Feature Fails (Engine Stalls at Stop)
Start/Stop feature activates unexpectedly when vehicle comes to complete stop, causing engine to shut off without warning. Vehicle cannot restart and stalls in traffic. Multiple tow-outs reported. Fuses blow on restart attempts, initially misdiagnosed as bad fuse or faulty starter.
When: Reported at ~1,100 miles and at later mileages; at least 4 breakdown incidents documented in one vehicle
Symptoms owners cite: Engine shuts off at complete stop without warning; Vehicle stalls and will not restart; Fuse blows during restart attempt; Vehicle immobilized in traffic; No warning lights illuminate prior to failure (some cases)
Repairs/costs cited: Initially misdiagnosed as bad fuse; later attributed to faulty starter drawing excessive current; one instance attributed to loose starter connections. Repeated failures despite repairs.
Recalls/TSBs owners mention: Case number provided by manufacturer after contact, but failures continue after attempted repairs
Electrical Short Affecting Stereo/Dashboard
Intermittent electrical short causes stereo and dashboard to shut down suddenly and power cycle (turn off and on repeatedly). First reported as faulty stereo, later diagnosed as underlying electrical issue. Stereo eventually replaced but owner concerns remain about what else may fail.
When: Summer 2022 (first incident); December 24, 2022 (power cycling incident); replaced February 17, 2023
Symptoms owners cite: Stereo and dashboard suddenly shut off while driving; Stereo power cycles repeatedly (turns off and on); Systems restart after a few seconds
Repairs/costs cited: Stereo replaced after warranty approval; electrical root cause not addressed
Recalls/TSBs owners mention: First blamed on faulty stereo, then acknowledged electrical issue; warranty approval required for stereo replacement
Charging System / Alternator Failure
Alternator fails without prior warning lights in some cases, or with late warning (service charging system light). Voltage drops critically (reported as low as 11.8V), triggering battery saver mode. Vehicle at risk of stalling. Battery is not covered under warranty despite alternator failure, creating additional unexpected cost. Multiple owners report early failure well before expected lifespan.
When: Reported at 26,500 miles, 45,000 miles, 57,323 miles; one failure at 6 months post-purchase with infant in vehicle at stop light
Symptoms owners cite: Check engine or service charging system light illuminates; Voltage drops critically (11.8V reported); Battery saver mode activated; Vehicle at risk of stalling; No warning lights in some cases prior to complete failure
Codes mentioned: Service charging system code
Repairs/costs cited: Alternator replacement required; battery often damaged by alternator failure and requires replacement at owner cost (~$507 reported); occurs well below typical alternator lifespan
Recalls/TSBs owners mention: GM refuses liability despite multiple owners reporting identical defect; part is rated for longer period than actual failures
Water Intrusion into Body Control Module (BCM)
Design defect: drain pipe passes directly over BCM and drips water into it. Causes battery drain after vehicle sits for 3 days. Once jump-started, hazard lights, door locks, and parking lights randomly cycle on/off due to BCM water damage.
When: After vehicle sits unattended for 3 days
Symptoms owners cite: Battery drains completely during idle period; Hazard lights randomly turn off/on; Door locks randomly lock/unlock; Parking lights randomly turn on
Repairs/costs cited: Battery replacement ineffective; BCM replacement required at significant parts and labor cost
Recalls/TSBs owners mention: Mechanic indicated this is a known issue to Chevrolet; no NHTSA documentation found by owner
Instrument Panel/Dashboard Electrical Failure
While driving, check engine light, parking brake symbol, and all instrument panel lights illuminate; instrument panel then goes completely blank. Radio remains on after vehicle is turned off and cannot be manually switched off. Battery drains overnight. All diagnostic data is erased.
When: At ~29,700 miles; occurred during daylight driving
Symptoms owners cite: Check engine light illuminates at 45 MPH; Parking brake symbol displays; Entire instrument panel goes blank; Radio stays on after vehicle shut-off; Radio cannot be manually turned off; Battery drained overnight; All diagnostic data erased
Repairs/costs cited: Dealer unable to diagnose due to data erasure; vehicle not repaired
Recalls/TSBs owners mention: Manufacturer not informed
Electronic Stability Control (ESC) System Failure
ESC system disables unexpectedly with minimal warning. Power steering and brakes become inoperative, causing loss of vehicle control and collision. ESC warning light comes on, then system shuts down within 2 minutes, leaving driver without steering or braking capability.
When: During highway driving at speed limit (0530 on 11/10/24)
Symptoms owners cite: 'Service ESC' warning light illuminates; Power steering suddenly fails; Brakes become inoperative; Vehicle loses control; Tail end of vehicle spins out; Vehicle becomes unable to steer or brake
Codes mentioned: Service ESC code
Repairs/costs cited: Vehicle totaled; owner barely able to coast into parking (highway incident resulted in guard rail collision)
Rear Backup Camera Failure
Rear backup camera stops working. Attempted repairs span several months and multiple dealer visits (4+ occasions). Camera replaced 3 times without permanent fix. Partial recall for cable kit was applied but not completely installed due to manufacturing backlog.
When: After several months of ownership; requires 4+ dealer visits
Symptoms owners cite: Rear backup camera display goes dark; Rear camera stops functioning
Repairs/costs cited: Camera replaced 3 times; partial cable kit recall applied but not completely due to COVID-related manufacturing backlog
Recalls/TSBs owners mention: Recall exists for camera cable kit but incomplete implementation reported
Automatic Headlight Failure
Headlights suddenly go out while driving with AUTO setting engaged, rendering vehicle dangerously dark. Lights work normally when manually activated. Intermittent failure occurs over consecutive days, then resolves on its own.
When: 02/24/2023 (first failure during storm); 02/25/2023 (second failure); 02/26/2023 (working again)
Symptoms owners cite: Headlights go out while driving in AUTO mode; Vehicle becomes dark, creating safety hazard; Manual activation restores headlights; Intermittent failure over 2-3 days; Failure resolves without repair
Door Lock System Failure
All four doors fail to lock or unlock. Key fob only operates liftgate; does not control door locks.
Symptoms owners cite: All four doors will not lock; All four doors will not unlock; Key fob inoperative for door locks; Key fob only opens liftgate
Drivability Issues with Engine Light
Vehicle jerks randomly during acceleration. When accelerator is pressed, vehicle slows instead of speeding up. Vehicle drifts. Backup camera also fails to work properly. Check engine light illuminates after shutdown and restart.
Symptoms owners cite: Random jerking while driving; Vehicle slows when accelerator is pressed; Vehicle drifts; Check engine light illuminates; Backup camera malfunctions; Reduced power/drivability until engine is restarted
Codes mentioned: Check engine code
Starter Failure / Loss of Motive Power
Vehicle loses power and stalls while driving, requiring tow. Diagnosed as starter failure. Vehicle repaired but issue may recur given pattern of auto start/stop failures in cluster.
When: At approximately 105,000 miles
Symptoms owners cite: Sudden loss of motive power in roadway; Vehicle stalls; No warning lights illuminated
Repairs/costs cited: Starter repaired/replaced at independent mechanic
Recalls/TSBs owners mention: Manufacturer not notified
Synthesized from 23 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
Tl* the contact owns a 2020 Chevrolet traverse. The contact stated that the start/stop feature failed while the vehicle was in operation. The contact stated that after coming to a complete stop, the engine stalled. No warning lights illuminated. The vehicle was taken to autonation Chevrolet greenacres service center (5757 lake worth rd suite a, greenacres, fl 33463) and grieco Chevrolet of delray…
I was driving to work at 0530 on 11/10/24. I was on the highway driving the speed limit. A light came on that read "service ESC". Within 2 minutes of this light coming on, I heard a loud noise and the tail end of my car started to spin out. My power steering went out, my brakes did not work and I hit the guard rail very hard. The "electronic stability control" system in my car, turned off on…
I was driving down the street and my car started to randomly jerk. When I pushed the gas the car got slower. Once in a safe place I pulled over and sat there for a few minutes. When I accelerated again the car had a sound like the car was speeding up, but there was no speed. It drifted. So I crossed the traffic light and pulled over again. I turned the car off. I waited for about 5 minutes,…
Had electrical trouble with your 2020 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 2020 Chevrolet Traverse?
It's a meaningful issue. 23 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 23 complaints filed, electrical issues most often appear around 49,050 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/2020/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.