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Chevrolet · Known Issues

2023 Chevrolet Bolt EUV Problems: 1 Known Issue

2023 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Bolt EUV has 1 documented issue, with 1 rated critical. The most serious is Complete loss of propulsion from a spread terminal at the drive unit X2 harness connector (DTC P0A3F / P1B03) ($600-$1,800 repair). Across all issues with published estimates, repair costs range from $600 to $1,800. DIY maintenance guides at au7o.io.

In This Article

  • Bolt EUV Drivetrain1
  • Recalls4
  • FAQ
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In This Article

  • Drivetrain1
  • Recalls4
  • FAQ

All 1 Known Issue

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ALL YEARS20232022

On the 2022-2023 Chevrolet Bolt EUV, gM TSB 19-NA-220, revised February 2023, explicitly covers 2022-2023 Chevrolet Bolt EUV. Customers experience an outright loss of propulsion - the car stops driving - and history codes P0A3F and sometimes P1B03 are stored in the Hybrid/EV Powertrain Control Module. The vehicle often operates normally again after a restart, which makes it dangerous and hard to catch. The cause is a spread (splayed) terminal at harness connection X2 on the T12 transmission/drive unit assembly, where terminals were not perfectly aligned during installation at the assembly plant. GM warns that terminals need not show visible damage to set the codes. Because these are resolver (motor position sensor) circuits, this is a genuine drive-unit interface failure, not a software trip, and it can drop propulsion at speed.

Common Symptoms

  • Sudden complete loss of propulsion while driving
  • Vehicle drives normally again after a restart
  • Malfunction indicator lamp illuminated
  • Intermittent, hard to reproduce at the dealer

How to Fix

Replace the engine wiring harness. GM explicitly prohibits splicing in a terminated lead at this connector because of the sensitivity of the resolver circuits (SI document ID 4583435). On reassembly the connector bodies must be aligned squarely and not entered at an angle, or the failure repeats. Important diagnostic caveat: if P0A78, P0C01 or P0C0B are also present alongside P0A3F/P1B03, the harness is likely NOT the cause and GM Technical Assistance must be contacted - do not let a shop replace the harness on those codes. Covered under the EV powertrain warranty on most surviving EUVs.

Typical repair cost:$600 - $1,800

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026
NHTSA Recalls4 recalls

AIR BAGS:FRONTAL

General Motors, LLC. (GM) is recalling certain 2022 Chevrolet Bolt EV and Bolt EUV vehicles. One of the two fasteners that secure the driver's frontal air bag to the steering wheel may be missing or improperly tightened.

Campaign #21V51700008/07/2021

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. The high voltage battery could catch fire when charged to full or nearly full capacity.

Campaign #21V65000020/08/2021

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles that were previously remedied under recall number 21V-650. The advanced diagnostic software may have been incorrectly installed and fail to detect defective battery modules, possibly resulting in a battery fire.

Campaign #24V48100027/06/2024
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Other Chevrolet Models

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Frequently Asked Questions

What are the most common Chevrolet Bolt EUV problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Bolt EUV has 1 documented issue. The documented issue is: Complete loss of propulsion from a spread terminal at the drive unit X2 harness connector (DTC P0A3F / P1B03). Of these, 1 is rated critical and should be addressed promptly.

Is the Chevrolet Bolt EUV reliable?

The 2023 Chevrolet Bolt EUV has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Complete loss of propulsion from a spread terminal at the drive unit X2 harness connector (DTC P0A3F / P1B03). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Chevrolet Bolt EUV problems?

Repair costs for known Chevrolet Bolt EUV issues range from $600 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Complete loss of propulsion from a spread terminal at the drive unit X2 harness connector (DTC P0A3F / P1B03), typically costs $600-$1,800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2022-2023 Chevrolet Bolt EUV Complete loss of propulsion from a spread terminal at the drive unit X2 harness connector (DTC P0A3F / P1B03)?

GM TSB 19-NA-220, revised February 2023, explicitly covers 2022-2023 Chevrolet Bolt EUV. Customers experience an outright loss of propulsion - the car stops driving - and history codes P0A3F and sometimes P1B03 are stored in the Hybrid/EV Powertrain Control Module. The vehicle of… Repairs typically run $600-$1,800. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Bolt EV and 2022 Bolt EUV vehicles previously repaired under Recall 21V-650. The installation of advanced diagnostic software may have failed. As such, the high voltage battery could catch fire when charged to full or nearly full capacity.

Campaign #24V81200031/10/2024

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