Honda · Known Issues

2018 Honda Insight Problems: 2 Known Issues

2018 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Honda Insight has 2 documented known issues, with 1 rated critical. The most serious is IMA Hybrid Battery Failure (All Generations) ($400-$4,000 repair). Across all issues with published estimates, repair costs range from $150 to $4,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Honda Insight problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Honda Insight has 2 documented issues. The most frequently reported are: IMA Hybrid Battery Failure (All Generations), 12V Battery Premature Failure. Of these, 1 is rated critical and should be addressed promptly.

Is the Honda Insight reliable?

The 2018 Honda Insight has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: IMA Hybrid Battery Failure (All Generations). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Honda Insight problems?

Repair costs for known Honda Insight issues range from $150 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, IMA Hybrid Battery Failure (All Generations), typically costs $400-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2000-2022 Honda Insight IMA Hybrid Battery Failure (All Generations)?

All Honda Insight generations (2000-2006, 2010-2014, 2019-2022) experience IMA (Integrated Motor Assist) hybrid battery failures, typically between 75,000-175,000 miles (8-15 years). Symptoms include IMA warning light, reduced fuel economy, lack of electric assist, poor accelerat… Repairs typically run $400-$4,000. Severity: high.

What is the 2010-2022 Honda Insight 12V Battery Premature Failure?

Honda Insight models (especially 2010-2014 and 2019-2022) experience premature 12V battery failures. The small 12V battery (not the IMA hybrid battery) dies unexpectedly, often within 2-3 years. Symptoms include no start, electrical gremlins, and hybrid system errors. The Insight… Repairs typically run $150-$250. Severity: medium.

2018 Honda Insight Problems: 2 Known Issues

All 2 Known Issues

2000-2022 Honda Insight: IMA Hybrid Battery Failure (All Generations)#

Common Symptoms

How to Fix

What you need to fix it

Owner tips & cautions

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2010-2022 Honda Insight: 12V Battery Premature Failure#