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Chevrolet P1B0D

Drive Motor Overspeed

DriveNot yet established by verified evidence. Because the verified bulletin associates P1B0D with no propulsion, do not assume the vehicle will be able to drive normally.
ChargeNot yet established by verified evidence.
ServiceContact a Chevrolet dealer or qualified EV service provider, particularly if the vehicle has no propulsion or P1B0D is stored.
Confidence95%

Quick answer

For a 2017 Chevrolet Bolt EV in the US, DTC P1B0D means “Drive Motor Overspeed.” Verified Chevrolet service information links this code to a no-propulsion condition and identifies HPCM reprogramming information in bulletin 19NA238.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does P1B0D mean?

For a 2017 Chevrolet Bolt EV in the US, DTC P1B0D means “Drive Motor Overspeed.” Verified Chevrolet service information links this code to a no-propulsion condition and identifies HPCM reprogramming information in bulletin 19NA238.

2. Technical explanation

P1B0D is a Chevrolet diagnostic trouble code with the verified meaning “Drive Motor Overspeed.” NHTSA-published Chevrolet manufacturer communication 19NA238 states that it provides HPCM reprogramming information to correct no propulsion with DTC P1B0D, identified there as “Drive Motor Control Module - Drive Motor Overspeed.”

3. What system is affected?

Drive motor control / HPCM, based on the wording of Chevrolet bulletin 19NA238.

4. How serious is this code?

Not yet established by verified evidence. However, the verified bulletin associates P1B0D with a no-propulsion condition.

5. Symptoms you may notice

  • No propulsion is identified in Chevrolet bulletin 19NA238.

6. Possible causes

  • The supplied verified evidence identifies HPCM reprogramming information as the correction described in bulletin 19NA238.
  • A specific underlying hardware or software cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence. Because the verified bulletin associates P1B0D with no propulsion, do not assume the vehicle will be able to drive normally.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Arrange professional diagnosis if P1B0D is present or the vehicle has no propulsion.
  • Use the vehicle’s VIN with a Chevrolet dealer or qualified service provider to confirm whether bulletin 19NA238 applies.
  • Do not attempt high-voltage or drive-motor repairs yourself.

10. Step-by-step troubleshooting

  1. Have a qualified service provider confirm the stored DTC and vehicle applicability.
  2. Ask the provider to check Chevrolet bulletin 19NA238 and determine whether HPCM reprogramming is applicable.
  3. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Contact a Chevrolet dealer or qualified EV service provider, particularly if the vehicle has no propulsion or P1B0D is stored.

12. What the service center may check

  • Confirm DTC P1B0D.
  • Confirm the vehicle is a 2017 Chevrolet Bolt EV for the US market.
  • Check applicability of Chevrolet bulletin 19NA238.
  • Evaluate whether the HPCM requires the reprogramming described by bulletin 19NA238.

13. Possible repair or resolution

  • Chevrolet bulletin 19NA238 provides HPCM reprogramming information to correct no propulsion with P1B0D.
  • The exact programming procedure, prerequisites, and whether it resolves every occurrence are not established by the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Chevrolet bulletin 19NA238, published through NHTSA as Manufacturer Communication 10168198 on 2019-10-21. It provides HPCM reprogramming information to correct no propulsion with DTC P1B0D Drive Motor Control Module - Drive Motor Overspeed.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

NHTSA Manufacturer Communication 10168198, Chevrolet bulletin 19NA238: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2015-2019.zip#nhtsa_id=10168198

19. Frequently asked questions

What does Chevrolet code P1B0D mean?

Verified evidence defines P1B0D as “Drive Motor Overspeed.”

Which vehicle is verified as applicable?

The supplied applicability evidence identifies the 2017 Chevrolet Bolt EV in the US.

Is there a Chevrolet service bulletin for P1B0D?

Yes. Chevrolet bulletin 19NA238 provides HPCM reprogramming information to correct no propulsion with P1B0D.

Can I charge with P1B0D?

Not yet established by verified evidence.

20. Sources & verification

Verified
Chevrolet P1B0D: Drive Motor Overspeed | EV Diagnostics