I like it on my 2019 Honda Pilot.
Honda does have a TSB for the 3rd generation Pilots and other vehicles to update the software regarding the Auto Stop/Start. Some owners were having the system work but then the car wouldn't restart for various reasons. Left a few owners sitting in the middle of the road blocking traffic until it finally did start. One of the updates was to change the specifications and disable the system when the battery was not fully charged.
Honda is also apparently saying the valves may need to be adjusted if the update doesn't work for some 2021-2022 vehicles. They say it can cause excessive cylinder pressure and or low cranking torque!
TSB 23-008 Product Update: PGM-FI Idle Stop Software Update (2016-2022)
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.
Owners of affected vehicles will be sent a notification of this product update. Do an iN VIN status inquiry to verify eligibility. Some vehicles affected by this campaign may be in your new or used vehicle inventory. Repair these vehicles before they are sold.
Update the PGM-FI Software. NOTE: The software update will decrease the Idle Stop operating range. As a result, the customer may notice reduced idle stop engagement when their vehicle’s battery is approaching the end of its useful life.
TSB 23-010 Warranty Extension: Engine Does Not Auto Restart After Entering Auto Idle Stop (2021-2022)
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 to 10 years from the original date of purchase with no mileage limitation.
Owners of affected vehicles will be sent a notification of this campaign. Do an iN VIN status inquiry to verify eligibility.
Adjust the valves.