What are the most common Chevrolet Onix problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2019-2019 Chevrolet Onix has 1 documented issues. The most frequently reported are: 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 2019-2019 Chevrolet Onix has 1 known issues 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.

2019 Chevrolet Onix Problems: 1 Issues Every Owner Should Know

2019 Chevrolet Onix Problems: 1 Issues Every Owner Should Know | Au7o

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On the 2017-2019 Chevrolet Onix, gM do Brasil recalled Onix and Prisma (along with Cobalt and Spin) vehicles produced between 2016 and 2018 — model years 2017 to 2019 — plus vehicles that received genuine GM replacement fuse boxes in 2018, because the underhood fuse box relay terminals could be installed without adequate insulating protection. Water entering and accumulating at the relay terminals in the engine compartment can cause a short circuit that triggers involuntary, continuous activation of the starter motor. The constantly-engaged starter can overheat to the point of fire, and on a manual-transmission car left parked in gear the cranking starter can move the vehicle on its own. The fix is a 20-minute free service in which the dealer applies insulating sealant to the fuse box relay terminals.

Common Symptoms

Starter motor cranks by itself with the key out
Clicking sounds from the underhood fuse box after rain or washing
Burning smell from the engine bay
Car lurches or creeps while parked in gear
Intermittent no-start or electrical faults in wet weather

How to Fix

Check recall completion by chassis number on the Chevrolet Brasil recall portal or by phone (0800 702 4200); the insulation service is free and takes about 20 minutes. Warning signs — the starter cranking by itself, clicking from the underhood fuse box after rain or engine washing, or a burning smell — mean the car should be parked away from structures, the battery disconnected, and the dealer service performed immediately. Never leave an unrepaired manual-transmission car parked in gear.

Typical repair cost:$0 - $0

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High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026

2019 Chevrolet Onix Problems: 1 Issues Every Owner Should Know

All 1 Known Issues

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)?