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Service bulletin PIC6231A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10123255
Published by NHTSA2017-11-14
Manufacturer's numberPIC6231A
Manufacturer's date2017-10-16
NHTSA componentELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles EV range is less than expected, or the estimated EV range on the display is greater than the actual range achieved. Dealer should walk the customer though using the energy screen. The energy screen will help the customer understand were there battery energy is being used.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Hybrid and electric drive, High-voltage battery

Vehicles listed
CADILLAC CT6 PLUG-IN HYBRID2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BOLT EV2017, 2018
CHEVROLET VOLT2017, 2018
OPEL AMPERA2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
21V5600002021-07-23. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
20V7010002020-11-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PIC64492022-02-14. Service bulletin. This Preliminary information communicates to the dealers on the process to be able to order a replacement High Voltage battery pack for a vehicle that has a High Voltage battery battery concern and is not on the current open recall list. This document will add in advising the dealers to contact TAC with needed information so TAC can review the data to verify that the vehicle need a High Voltage battery and then TAC will release the High voltage battery so the dealer can repair the vehicle for the customer. Also the Administrative Details have the direction for the consultants to be able to follow and handle the case information as it comes in.
18NA1862019-10-28. Service bulletin. This Bulletin provides information to diagnose a Loss of Propulsion or No Start with the MIL ON and DTC P0A3F or P1B03 set.
19NA2112019-10-28. Service bulletin. This Bulletin provides information to diagnose a Loss of Propulsion or No Start with the MIL ON and DTC P0A45 or P1B04 set.
18NA0162018-06-04. Service bulletin. This Bulletin provides ECM reprogramming information to Correct DTC P3260 and P0AC4.
GCUS-3-7732017-12-22. Service bulletin. 16055 Customer Satisfaction Program. Certain vehicles may exhibit a condition where the driver notices a ?Propulsion Power is Reduced? message in the driver information center. This condition is sometimes accompanied by the diagnostic trouble code P0A7F or a significant decrease in actual electric vehicle range. The driver may also notice the engine running at consistently higher power than normal to propel the vehicle and acceleration is slower than expected. Dealers are to reprogram the hybrid powertrain control module 2.