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Service bulletin PIP5388A

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 id10099773
Published by NHTSA2017-05-19
Manufacturer's numberPIP5388A
Manufacturer's date2016-09-02
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE 3.0L TWIN TURBO CHARGED ENGINE HAS BEEN PLACED ON THE ENGINE EXCHANGE PROGRAM. DEALER WILL NEED TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Turbocharger or supercharger

Vehicles listed
CADILLAC CT62016
CADILLAC CT6 PLUG-IN HYBRID2017 (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.

Other bulletins for the same vehicles and component
174082021-04-30. Service bulletin. Potential turbo turbine wheel failure/MIL illuminated with DTC P0299 or P16E7. Correction Reprogram ECM with a new calibration.
PI0653E2018-06-04. Service bulletin. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.
PI0653D2017-10-15. Service bulletin. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers. (New models and RPOs added)
PIP5387A2017-10-04. Service bulletin. This PI Communicates that there is a parts restriction on the toubochargers for this vehicle. The dealer must call PQC to order a replacement turbocharger.
PIP5403A2017-08-15. Service bulletin. This Preliminary Information communication advises the technician that vehicles equipped with an 3.0L twin turbo charged engine no longer need to contact PQC to order the ECM the restriction has ended.
PIP53882016-11-03. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATES TO THE DEALER THE DETAILS OF THE 3.0 TWIN TURBO CHARGED ENGINE EXCHANGE PROGRAM. DEALER IS TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER TO REQUEST AN EXCHANGE.
PIP-53882016-08-11. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATES TO THE DEALER THE DETAILS OF THE 3.0 TWIN TURBO CHARGED ENGINE EXCHANGE PROGRAM. DEALER IS TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER TO REQUEST AN EXCHANGE.