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Service bulletin PIT6319A

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 id11013402
Published by NHTSA2025-02-03
Manufacturer's numberPIT6319A
Manufacturer's date2025-01-29
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates that a customer may experience a service high voltage message with a loss of heat. The technician may find P1C01 in history. The technician is advised that updated software will be released in the future. The dealer should advise the customer to cycle the ignition on and off to temporarily resolve the concern.

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.

Trouble codes named

P1C01

Vehicles listed
CADILLAC LYRIQ2025
CADILLAC OPTIQ2025
CHEVROLET BLAZER EV2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EQUINOX EV2025 (the catalog's model; the bulletin names a series or trim of it)

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