Bulletin No.: PIC6458B
Published date: 06/23/2023

Preliminary Information
PIC6458B 2023 Cadillac LYRIQ TAC Parts Restriction Program for ESC Parts (Unique parts
located at the Electronic Service Centers)
Models
Brand:
Cadillac

Model:
LYRIC

VIN:

Model Years:
2023

from
All

Engine:

to
All

All

Transmissions:
All

Involved
Region or North America
Country
As part of our ongoing quality improvement process, all Cadillac LYRIQ unique parts that are located at the Electronic Service Centers (ESC) will
Condition remain on restriction through the GM Technical Assistance.
A valid TAC Case Number with Part Approved Activity will be needed prior to requesting the part.
Cause

This will Help GM Engineering to review any issues that come up live as the issue is happening

Correction:
If diagnostics lead to the replacement of any of the Cadillac LYRIQ Speci c parts, please start a case using Dealer Case Management and contact TAC at
Telephone Number US 1-877-446-8227 (Action Center prompt or Hybrid prompt) or Canada 1-800-263- 7740 for English or 1-800-263-7960 for French.
TAC will be verifying all Part numbers due to supersessions so no part numbers will be listed at this time. Below is the current list of parts that will be
located at the Electronic Service Centers:
Radio - (Refer to PIC6488 for Radio Programming Sequence)
OnStar Module
CLUSTER ASM-INST
CONTROL ASM-AM/FM STEREO RDO
Image Processing Module
Please contact TAC if any parts are ordered.
Include the part# and Part Name.
Any SI Document that lead to Replacement
Including all Readings
Pictures of any physical Damage
If DTCs are present and procedure gives direction to remove any components; stop, capture GDS2 Session Log stored data, and test drive vehicle with
GDS and MDI, and capture a snap shot of the Module data when condition occurs. See Latest version of PIP4902 for correct session logs data collection
and procedure for emailing.
TAC will request that you e-mail the Session Logs or pictures to them. Do not clear codes prior to capturing data and calling TAC.
U.S. dealers: PIP5632E can also be used to attach the session logs or pictures to the TAC case through the DCM portal.

Version History
Version

Modi ed

3
06/29/2022 - Created on.
01/25/2023 - Added PIC6488 reference for radio programming, added Image Processing Module, Author ownership
change.
06/23/2023 - Added correction for starting a case using Dealer Case Management.

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