2018 Honda Clarity Plug-In Hybrid Technical Service Bulletins

18 technical service bulletins (TSBs) are on record for the 2018 Honda Clarity Plug-In Hybrid. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10245549Nov 14, 2023Transmission and drivetrain, Electrical system. Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction). There are up to three updates that must be performed on applicable vehicles.
• 10220360Sep 15, 2022Fuel system, Electrical system. Owner's Notification Letter - Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle (Vehicle Identification Number [VIN NUMBER]). On Clarity Plug-in Hybrid vehicles, there is a software error in the miles per gallon calculation, which affects the HV range display and causes it to read unusually high.
• 10199344Jul 6, 2021Visibility (wipers, defrost, mirrors). Owner Notification Letter - On some 2018-21 Clarity Plug-In Hybrid models, the A/C condenser may leak refrigerant. American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase with unlimited miles. This warranty extension provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem.
• 10194978May 28, 2021Visibility (wipers, defrost, mirrors). Dealer Message - Today, May 28, 2021, American Honda is announcing a warranty extension for certain 2018-2020 Accord and Accord Hybrid, 2018-2020 Civic, 2017-2021 Civic Hatch, 2017-2021 Civic Type R, 2018-2021 Clarity PHEV, and 2019-2021 Insight vehicles. This warranty extension covers the A/C condenser to address concerns of leaking refrigerant. American Honda is extending the warranty on the A/C condenser to 10…
• 10194957May 28, 2021Visibility (wipers, defrost, mirrors). Service Bulletin - American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase with unlimited miles. This warranty extension only covers vehicles that have a defective A/C condenser from the factory. The A/C condenser was not manufactured to specification. As a result, corrosion may develop in the form of tiny holes in the condenser tube walls that allow the…
• 10187007Feb 11, 2021Engine cooling, Electrical system, Transmission and drivetrain. Service Bulletin - The Hybrid System Failure message comes on the MID, and DTC P1D8D (Generator Motor Inverter Short) is stored.
• 10166784Oct 17, 2019Engine cooling, Electrical system, Visibility (wipers, defrost, mirrors). Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction).
• 10162001Jun 27, 2019Electrical system, Visibility (wipers, defrost, mirrors). Dealer Message - On October 4, 2018, American Honda announced several Product Update Campaigns for certain 2018 Honda Clarity Plug-In Hybrid (PHEV) models. Replacement CPU Assembly Auto AC Kits and Warranty CD's were available at the time of bulletin launch.
• 10156633Mar 26, 2019Visibility (wipers, defrost, mirrors), Engine cooling, Transmission and…. Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, there may be a software problem in the powertrain control module (PCM), causing a malfunction indicator light to come on and store one or more diagnostic trouble codes (DTCs).
• 10156632Mar 26, 2019Visibility (wipers, defrost, mirrors), Engine cooling. Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, there is a software problem in the climate control unit when running the heater, which may turn the malfunction indicator light on.
• 10156631Mar 26, 2019Visibility (wipers, defrost, mirrors), Electrical system. Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, there is a software error in the miles per gallon calculation, which affects the HV range display and causes it to read unusually high.
• 10156630Mar 26, 2019Electrical system. Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, the warranty information CD that was placed in the vehicle during vehicle assembly did not list the correct warranty coverage for the state of Oregon.
• 10154940Mar 12, 2019Electrical system. Service Bulletin - The Clarity Plug-In Hybrid and Clarity Electric may not start charging when plugged in or may stop charging before the high-voltage lithium-ion battery is full.
• 10147178Oct 27, 2018Electrical system. Service bulletin - The Clarity Plug-In Hybrid and Clarity Electric may not start charging when plugged in or may stop charging before the high-voltage lithium-ion battery is full.
• 10143337Jul 10, 2018Electrical system. Service bulletin - The MIL comes on with DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction).
• 10143164Jul 10, 2018Electrical system, Transmission and drivetrain. Service bulletin - The MIL comes on with DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction).
• 10142623May 9, 2018Electrical system. Tech line summary article - We're getting reports of the HV range shown in the driver information interface reading unusually high (more than 1,000 miles remaining). How high it gets depends on driving style, and it typically happens after many EV trips not using the engine.
• 10115757Aug 3, 2017Steering. Service news article - To prevent damage during shipping, leather-wrapped steering wheels come with a protective plastic covering. The easiest way to remove it during PDI is to grab the covering with both hands near the top of the steering wheel and pull it toward you, like you see here. The covering comes right off.

← All problems reported for the 2018 Honda Clarity Plug-In Hybrid