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Service bulletin PIT5606

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 id10129059
Published by NHTSA2018-02-21
Manufacturer's numberPIT5606
Manufacturer's date2018-01-12
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; VEHICLE SPEED CONTROL; STEERING; FUEL SYSTEM, GASOLINE

NHTSA's summary

This Preliminary information communicates an Intermittent No Crank, No Start, or Reduced Power loss of data multiple U codes or Intermittent Power Door Locks inoperative. Inspect harness for chaffed by the I-shaft at the base of the steering column. If chaffed, repair damaged wires and zip tie the harness away from the I-shaft. Also Inspect the HVAC drain hose is properly routed and not plugged.

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

Engine, Fuel system, Steering, Throttle and cruise control, Transmission and driveline, Cooling system

Vehicles listed
CADILLAC XT52017, 2018
GMC ACADIA2017, 2018

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
PIP5684B2020-08-10. Service bulletin. This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.
19NA1042019-07-29. Service bulletin. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
PIE0385B2018-05-21. Service bulletin. This engineering information bulletin ends the need for information from the field on vehicles that have the concern of a noisy water pump.
17NA3902018-05-21. Service bulletin. This technical bulletin provides a procedure to check the temp sensor connection and program the ECM.
PIP55492018-02-21. Service bulletin. This Preliminary information communicates a diagnostic trail to a likely conclusion for lean codes on these vehicles.