Service bulletin ATS150901

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)
Type	Service bulletin
NHTSA id	10100044
Published by NHTSA	2017-05-22
Manufacturer's number	ATS150901
Manufacturer's date	2015-12-10
NHTSA component	ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

"TECHLINE SUMMARY ARTICLE - EDITOR’S NOTE: THIS ARTICLE REPLACES THE ONE POSTED IN SEPTEMBER 2015 TO EXTEND THAT ARTICLE’S SHELF LIFE. THE ISSUES COVERED ARE STILL BEING ADDRESSED. ARE YOU READING A DTC B121E (CLIMATE CONTROL UNIT LOST COMMUNICATION WITH TOUCH CONTROL PANEL) ON THE HDS AND YOU CAN’T FIND ANYTHING IN THE SERVICE INFORMATION TO HELP YOU TROUBLESHOOT IT? JUST USE THE TROUBLESHOOTING PROCEDURE FOR DTC U0180 (LOST COMMUNICATION WITH AUTO L/T); IT’S THE ONE YOU WANT."

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

Electrical system, Equipment and accessories, Labels and manuals

Trouble codes named

B121E, U0180

Vehicles listed
HONDA PILOT	2016

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

Recalls for the same vehicles and component
15V668000	2015-10-16. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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
A23-023	2023-04-22. Service bulletin. Service Bulletin - The engine will not crank on initial startup after precipitation and sub-freezing temperatures. Water can enter the starter motor, and when temperatures drop below freezing, the water will freeze inside the starter motor. This will prevent the starter from cranking the engine.
A23-008	2023-02-03. Service bulletin. Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
ABOM01062023	2023-01-11. Service bulletin. Dealer Message - During development, the idle stop enable criteria was mis-set allowing idle stop to improperly engage while battery health is low. Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not automatically restart. In most cases, the client can immediately restart the vehicle by selecting Park and pushing the Start button.
A23-009	2023-01-11. Service bulletin. Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button. NOTE: If 23-008 Product Update: PGM-FI Idle Stop Software Update is applicable to the VIN, the PGM-FI software must be updated first before the warranty extension applies. Honda is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation.
A23-008	2023-01-11. Service bulletin. Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
A20-056	2022-07-07. Service bulletin. Service bulletin - The MIL comes on with DTC P2422 (EVAP canister vent shut valve stuck closed malfunction). Dirt may be clogging the EVAP canister vent tube.
A20-022	2022-07-07. Service bulletin. Service bulletin - One or more accessory running board lights are flickering or not working. The running board light assembly is faulty. * Denotes Required Fields TSB ID : TSB Date : Calendar for date entry assistance Source : All Manual EMAIL MCA Portal
150901	2022-05-09. Service bulletin. This article replaces the one posted in December 2015 to extend the article?s shelf life. The issues covered are still being addressed. Are you reading a DTC B121E (climate control unit lost communication with touch control panel) on the HDS and you can?t find anything in the service information to help you troubleshoot it? Just use the troubleshooting procedure for DTC U0180 (lost communication with auto L/T); it?s the one you want.
15072	2022-05-09. Service bulletin. There is a software problem within the audio-navigation unit that may cause the display screen, including any video images, to go blank and the unit to stop working.
15074	2022-05-09. Service bulletin. During manufacturing, the gauge control module software installed did not meet specification and there are two potential issues: ? The gauge control module adds mileage to the odometer when the OFF mode is selected (Touring and Elite only). ? The gauge control module loses communication with the HDS or may not transfer the odometer mileage and maintenance minder information when replacing the gauge control module. There is one software update that will repair one or both of the issues affecting your vehicle.