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2024 TESLA MODEL 3
Standard Range Single Motor RWD•RWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor315Torque3787Fluid5DTC726Battery1Maintenance0Recalls4
B2101low severityBody

Daytime Running Light Module Circuit

on 2024 Tesla Model 3 Standard Range Single Motor RWD · RWD

What this code means

Malfunction in the daytime running light (DRL) module or circuit.

Symptoms

  • DRLs not illuminating
  • DRLs always on even with headlights on
  • DRL brightness incorrect
  • DRL warning message on display

Common causes

  • Faulty DRL module
  • Burnt out DRL bulb/LED
  • Wiring issue
  • BCM DRL output fault
  • Light sensor input error

Diagnostic steps

  1. Check DRL bulbs/LEDs
  2. Test DRL module power and ground
  3. Inspect wiring
  4. Scan BCM for DRL codes
  5. Test light sensor input

Repair notes

Replace DRL bulbs/LEDs or DRL control module.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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