2021 Honda Insight Service and Repair Manual
This 2021 Honda Insight factory service and repair manual is built for this exact year, engine and trim lineup, so the specifications and repair sequences inside are the ones Honda published for your Insight and its 1.5L L4 (LEB6) hybrid powertrain, not a generalized figure pulled from another model year.
Engines covered
- 1.5L inline-four full hybrid — DOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
- EX
- LX
- Touring
Known issues on the 2021 Insight. Three recalls are on federal record for this model year. The first covers the DC/DC converter in the propulsion system: it may shut down and prevent the 12-volt battery from recharging, which can cause a loss of drive power and increase the risk of a crash. The other two both cover the front passenger occupant classification sensor: the seat weight sensor may crack and short circuit, and in each case that failure can lead to an air bag deploying unintentionally in a crash, raising the risk of injury. Owners have filed 24 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.
From a stalled drive-power fault to a passenger air bag inspection or routine hybrid service, it keeps you on the OEM procedure and the correct specification for your specific 2021 Insight.
Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V,
An air bag that deploys unintentionally during a crash can increase the risk of injury.
Dealers will replace the seat weight sensors, free of charge. Owner notification letters were maile
Service Bulletin - The ACC system error message comes on while driving when outside temperatures are low/near freezing due to snow and ice getting stuck to the front of the millimeter wave radar. This can cause DTC P2583-76 (Temporary stop
Service News - If an Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, inform the customer it is likely due to snow or ice buildup on the radar. Advise the customer of the following proc
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below. Qualifiers AHM is interested ONLY if the vehicle me
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below. Qualifiers AHM is interested ONLY if the vehicle me
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below. Qualifiers AHM is interested ONLY if the vehicle me
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below. AHM is interested ONLY if the vehicle meets the fol
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below.
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for any & all 2018-2022 Accord Hybrids, 2020-2022 CR-V Hybrids & 2019-2022 Insights that match the criteria listed below.
Showing the 8 most recent of 25 technical service bulletins on file with NHTSA.
The contact owns a 2021 Honda Insight. The contact stated while driving at 55 mph, a deer jumped in front of the vehicle causing the contact to hit the deer but none of the air bags deployed. The cont
There is a massive hood flutter when large vehicle drive towards me going above 50mph. It feels and looks like the hood is not latched correctly and going to open into my windshield. This has happened
Went in for a typical servicing. They noted that the downstream O2 sensor was damaged by rodents. The vehicle, with around 14k has always been stored in a weather tight garage, never stored outside.
I received a 2021 Insight Seat Weight Sensor Safety Recall in September 2025 saying that recall replacement parts were now available at Honda Dealers. Ever since I received this notice, none of the At
Under certain circumstances, the portion of the PCU that controls charging of the 12 volt accessory battery malfunctions, sending the PCU into a "fail safe" mode, preventing battery charging and activ
Showing the 5 most serious of 35 complaints filed with NHTSA.
