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Service bulletin A14-078

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 id10099803
Published by NHTSA2017-05-19
Manufacturer's numberA14-078
Manufacturer's date2015-12-23
NHTSA componentPOWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

NHTSA's summary

"SERVICE BULLETIN - UNDER CERTAIN DRIVING CONDITIONS, THERE IS EXCESSIVE VIBRATION BETWEEN 30 AND 65 MPH. FOR 2WD AND 4WD VEHICLES, THE CALIBRATION VCM OPERATION COMBINED WITH THE ACTION OF THE LOCK UP TORQUE CONVERTER CREATES EXCESSIVE VIBRATION. ADDITIONALLY FOR 4WD VEHICLES, THE PROPELLER SHAFT’S CENTER SUPPORT BEARING BUSHING MATERIAL MAY NOT EFFECTIVELY DAMPEN VIBRATIONS IN COLD (BELOW 32ºF) TEMPERATURES."

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

Transmission and driveline, Automatic transmission, Torque converter

Vehicles listed
HONDA PILOT2012, 2013, 2014, 2015

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
A13-0822018-07-02. Service bulletin. Service bulletin - American Honda is announcing a powertrain warranty extension as a result of a settlement of a class action captioned, Soto et al.v. American Honda Motor Co., Inc., Case No. 3:12-cv-1377-SI (N.D. Cal.). The piston rings on certain cylinders may rotate and align which can lead to spark plug fouling. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.
Service Bulletin2017-08-25. Service bulletin. Service bulletin - For 2WD and 4WD vehicles, the calibration VCM operation combined with the action of the lock up torque converter creates excessive vibration. Additionally for 4WD vehicles, the propeller shaft?s center support bearing bushing material may not effectively dampen vibrations in cold (below 32ºF) temperatures
Service Bulletin2017-07-28. Service bulletin. Service bulletin - Under certain driving conditions, there is excessive vibration between 30 and 65 mph. For 2WD and 4WD vehicles, the calibration VCM operation combined with the action of the lock up torque converter creates excessive vibration. Additionally for 4WD vehicles, the propeller shaft?s center support bearing bushing material may not effectively dampen vibrations in cold (below 32ºF) temperatures.
Service Bulletin2017-07-17. Service bulletin. Dealer message - Under certain driving conditions, there is excessive vibration between 30 and 65 mph. For 2WD and 4WD vehicles, the calibration VCM operation combined with the action of the lock up torque converter creates excessive vibration. Additionally for 4WD vehicles, the propeller shafts center support bearing bushing material may not effectively dampen vibrations in cold (below 32ºF) temperatures.