Service bulletins for the 2018 Honda Civic
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.
236 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Transmission control module are shown. Show all
| AHPa12212018901 | 2019-01-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). "Dealer message - On December 5, 2018, American Honda announced a product update campaign for certain 2017-18 CR-V vehicles with the 1.5L turbo engine that were sold in 21 cold-weather states. Today, American Honda is expanding the scope of this product update to include certain 2016-18 Civic vehicles with the 1.5L turbo engine. This applies to vehicles in the same 21 states. This product update also addresses concerns related to engine oil dilution due to various control unit software/threshold settings." |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.