WenmarOpen by Wenmar Pro

Service bulletin PI-0999

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 id10052453
Published by NHTSA2013-08-01
Manufacturer's numberPI-0999
Manufacturer's date2013-06-01
NHTSA componentPOWER TRAIN:CLUTCH ASSEMBLY; ENGINE

NHTSA's summary

GM: SOME VEHICLES MAY EXPERIENCE AN ENGINE SHUDDER UPON STOPPING. MALFUNCTION INDICATOR LAMP IS ON. CLUTCH IS STICKING. *JS

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, Transmission and driveline, Clutch

Vehicles listed
BUICK ENCLAVE2013
CADILLAC SRX2013
CADILLAC XTS2013
CHEVROLET EQUINOX2013
CHEVROLET IMPALA2014
CHEVROLET MALIBU2013
CHEVROLET TRAVERSE2013
GMC ACADIA2013
GMC TERRAIN2013

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
01-07-30-042H2018-05-21. Service bulletin. This information was created to inform the technician that the 2-3 upshift and the 3-2 downshift clunk is caused by the releasing of the 2-4 band and application of the 3-4 clutch assembly during an upshift. Also during a 3-2 downshift, the releasing of the 3-4 clutch during the application of the 2-4 band, can cause torque reversal down the output shaft creating a clunk. This is a normal condition.
PIP51462017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have a bind or shudder on turns during tight parking lot maneuvers. If technician is working on a 2012 Lacrosse the Electronic Brake Control Module should be updated with the latest calibrations in Service Programming System. If the technician isolates the condition to be coming from the Rear Drive Module, then check the fluid level in the Rear Drive Module per Service Information. If fluid levels are incorrect then diagnose and repair as needed, review latest version of PI0703 if the differential clutch is overfull. If no fluid concerns are found change the differential clutch oil filter and oil. Technician should insure all oil and debris is removed from the differential.