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Service bulletin PI1256

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 id10126270
Published by NHTSA2017-12-22
Manufacturer's numberPI1256
Manufacturer's date2014-06-04
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING

NHTSA's summary

This preliminary bulletin provides a procedure to install a plug in the rear of the oil pan to correct the customers concern of an oil leak between the trans and engine.

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, Transmission and driveline, Automatic transmission

Vehicles listed
BUICK REGAL2014

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

Recalls for the same vehicles and component
14V0920002014-02-21. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PIE02762024-04-08. Service bulletin. Engineering Information.
PIE02702024-04-08. Service bulletin. Engineering Information.
21-NA-2452024-04-05. Service bulletin. This service bulletin provides repair information to correct a customer concern of seeing a Shift to Park Message Displayed in DIC.
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
183692022-05-31. Service bulletin. Special Coverage. Some vehicles equipped with a 2.0L turbo engine, may have a condition where a wire within the exhaust camshaft position actuator solenoid valve may break. If this were to occur, the Malfunction Indicator Lamp would illuminate, and a diagnostic trouble code DTC P0013 (Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit) would set. The driver may experience rough engine idling or reduced engine torque/power. Dealers are to replace the exhaust camshaft position actuator solenoid valve as necessary. The repairs will be made at no charge to the customer.
18NA3582022-05-31. Service bulletin. This service bulletin provides a procedure to replace the upper and lower valve body housings to correct customer concerns of launch shudder, 2-3 Upshift or 3-2 Downshift concerns.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
150089004C2021-03-08. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.