What are the most common Chevrolet Onix problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Chevrolet Onix has 1 documented issue. The documented issue is: Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019). Of these, 1 is rated critical and should be addressed promptly.

Is the Chevrolet Onix reliable?

The 2018 Chevrolet Onix has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019). 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 Chevrolet Onix problems?

Repair costs for known Chevrolet Onix issues range from $0 to $0, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019), typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

Chevrolet · Known Issues

2018 Chevrolet Onix Problems: 1 Issue Every Owner Should Know

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

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Chevrolet Onix has 1 documented issue, with 1 rated critical. The most serious is Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019) ($0-$0 repair). DIY maintenance guides at au7o.io.

2018 Chevrolet Onix Problems: 1 Issue Every Owner Should Know

All 1 Known Issue

2017-2019 Chevrolet Onix: Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019)#

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Frequently Asked Questions

What are the most common Chevrolet Onix problems?

Is the Chevrolet Onix reliable?

How much does it cost to fix common Chevrolet Onix problems?

What is the 2017-2019 Chevrolet Onix Underhood Fuse Box Water Ingress — Unintended Starter Activation and Fire Risk Recall (2017-2019)?