2020 Chevrolet Bolt EV Check Engine Light

It means your vehicle stored an OBD-II diagnostic trouble code (DTC) after detecting a fault in a monitored system.

On an electric 2020 Chevrolet Bolt-Ev, this can involve the high-voltage battery, battery thermal management, inverter/drive unit, charging components, or control-module communications. A factory-level scan gathers freeze-frame data, pending codes, and module information to identify what triggered the light. If the lamp is steady, plan a visit soon; if it flashes or propulsion is limited, stop and arrange towing. You can schedule service online anytime.

• OBD-II codes and snapshots show when and how the fault occurred
• Factory scan tools read GM EV modules beyond a generic code reader
• Book a diagnostic appointment via our schedule service portal

Frequent causes include high-voltage battery isolation faults (P0AA6), EV cooling system flow/temperature issues, sensor circuit faults, and charging system errors.

Drivers around Murray and Salt Lake City may notice related messages like Reduced Propulsion or charging interruptions. These faults can stem from connectors, wiring, coolant pumps/valves, or control modules that require guided testing to confirm. We’ll scan all modules, verify the concern, and provide a written estimate before any repair. Check our current service specials for offers.

• EV battery thermal management faults can limit performance
• Charging-port or onboard charger issues may set MIL and disable charging
• Module communication codes can point to wiring or software updates

If the light is steady, drive cautiously to a nearby service facility; if it’s flashing or you see a Reduced Propulsion warning, stop driving and arrange towing.

A flashing lamp or added warnings on a 2020 Chevrolet Bolt-Ev can indicate a high-voltage or control fault that risks shutdown. If the light is steady and the car drives normally, minimize trips and schedule a prompt diagnostic. We’re close to I‑15 at 5500 S State St for quick access from Midvale and Sandy—use our schedule service tool.

• Flashing MIL or Reduced Propulsion = tow for safety
• Steady MIL with normal operation = schedule soon
• Address quickly to avoid roadside interruptions

Parts stores read generic OBD-II codes, while our GM factory tools access proprietary Bolt EV data and enable isolation testing to find the true cause.

Codes often have multiple potential sources; pinpointing the fix requires guided procedures, circuit checks, and EV‑specific know‑how. Our Chevrolet technicians retrieve freeze-frame data, run module self-tests, and confirm faults before writing an estimate. That detail helps prevent replacing good parts. If repairs are needed, we use genuine GM components.

• Full‑vehicle scan and data review across all GM EV modules
• Isolation testing per GM service information before repair
• Written estimate provided for transparency

No—clearing codes sets OBD readiness monitors to “Not Ready,” which typically fails OBD-based emissions checks until drive cycles complete.

Even on EVs subject to OBD verification, a reset only hides the symptom; the underlying fault remains and the light often returns. The correct path is a proper diagnosis and confirmed repair, followed by a readiness check. Use our schedule service page to book testing, and review service specials before you arrive.

• OBD readiness must be complete for most inspections
• Drive cycles may require varied speeds and conditions
• Fix the root cause to keep the MIL off for good

A free scan lists a code, but dealership diagnostics identify the failed component or wiring using OEM procedures and EV‑specific tests.

For 2020 Chevrolet Bolt-Ev vehicles, proprietary data and guided flowcharts are crucial to avoid misdiagnosis. Our location serves South Jordan, West Jordan, Midvale, and Sandy with convenient access and online booking. We verify the concern, test, and document findings so you can decide next steps confidently—start with our schedule service tool.

• Access to technical service bulletins and software updates
• EV‑aware testing for battery, cooling, and charging systems
• Close to the greater Salt Lake City area for easy visits

We start by confirming your concern and documenting any warnings on the instrument panel or infotainment display. Next, we connect GM factory-level scan equipment to perform a complete module scan, retrieve DTCs, and capture freeze-frame data. A technician reviews snapshots, checks MIL status (active, history, or pending), and follows GM service information to design isolation tests—visual connector inspections, circuit voltage/resistance checks, coolant flow and temperature verification for the battery/drive unit, and a targeted road test when appropriate. Findings are recorded and explained clearly. You receive a written estimate before any repair is performed. If work proceeds, we re-test, clear codes, and confirm the repair. Ready to proceed? Use our online schedule service to book a diagnostic visit.

Larry H. Miller Chevrolet Murray serves the greater Salt Lake City area—South Jordan, West Jordan, Midvale, and Sandy—with EV-savvy diagnostics tailored to your 2020 Chevrolet Bolt-Ev. Our factory scan tools see data that generic readers miss, including module-specific faults and freeze-frame details needed to replicate the issue. Technicians then apply GM procedures to verify root cause before recommending repair, helping prevent parts swapping. We’re easy to reach at 5500 S State St, Murray, UT 84107, just off I‑15. Use our online schedule service to reserve a time, and review current service specials before you visit for potential savings.

While code definitions vary by condition, 2020 Chevrolet Bolt-Ev owners often encounter EV‑related DTCs such as P0AA6 (high‑voltage isolation fault) and P1E00 (EV powertrain control module requested MIL). Cooling system performance faults for the battery/drive unit, charging system communication errors, and sensor circuit issues can also illuminate the lamp. Ignoring these warnings can lead to Reduced Propulsion or a no‑charge/no‑start scenario, potentially stranding the vehicle and increasing towing and downtime risks. Addressing codes promptly preserves system health and helps avoid cascading faults. Bring your 2020 Chevrolet Bolt-Ev to Larry H. Miller Chevrolet Murray in Murray for an accurate diagnosis — schedule service.