Problems · by component

2018 Chevrolet Trax engine problems

30 owner complaints to NHTSA about the 2018 Chevrolet Trax cite engine, 29% of all 102 complaints for this model year.

Complaints
30
29% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the engine

Verbatim from NHTSA complaints, newest first
“The vehicle suffers from an extreme, unresolved internal crankcase pressure defect stemming from the factory 1.4L Ecotec PCV system and intake manifold check valve. This pressure cascade has caused a total turbocharger failure, multi-gasket oil blowouts, water pump failure, and has now completely blown a critical coolant housing hose off its connection, causing total coolant evacuation. The vehicle is currently parked and available for inspection upon request. The safety of the driver and minority passengers is severely compromised. The vehicle actively smokes from under the hood when turned on, which worsens immediately when the cabin heater is utilized. This indicates highly flammable oil and coolant are leaking directly onto hot exhaust/turbo components, presenting an active vehicle fire hazard. Furthermore, the pressure defect previously caused a catastrophic engine oil blowout while traveling at highway speeds, risking sudden power loss, engine seizure, and traffic collisions. The vehicle is currently deemed completely unsafe to operate. The vehicle's core turbocharger failure was previously confirmed and replaced by an authorized manufacturer dealership…”
Owner complaint to NHTSAFiled Oct 9, 2026Power train, Engine, Fuel/propulsion systemODI 11770037
“The diver side fuse box started a fire in the vehicle. The tracking control system light was flashing on and the vehicle lost power. Filed claim with insurance company. Insurance company issued a total loss and took possession of the vehicle.”
Owner complaint to NHTSAFiled Jun 27, 2026Electrical system, EngineFire reportedODI 11746862
“Both my control arms are loose and wheel baring is bad, plus a cracked catalytic converter. All of these are causing my car to be loud and burning smell, causing unsafe driving conditions for me and my children. Online states that the control arms are an issue with this vehicle make and model and have been recalled, however my VIN has not been recalled and I want to report this. improperly welded joints can fatigue and break, causing the lower control arm to partially separate from the vehicle. This can lead to a sudden loss of steering control and increase the risk of a crash. I have not gotten in an accident, but was at risk of this happening. My car is being worked on and it will cost me $800 for these repairs for the issues related to the 2018 Chevy traxs. I would like this VIN to be recalled and receive a refund for the work done to my vehicle.”
Owner complaint to NHTSAFiled Jun 3, 2026Suspension, Wheels, EngineODI 11741821
“My check engine light came on, I took my vehicle to Ken Ganley Chevrolet because that is where I purchased it. They claim they have no record I bought it there and at first refused service. I provided my loan documents that state I purchased it. Tim was in the service department, I brought the car in and he had it looked at. He said the issue is the turbocharger, which is a known issue with this year/make/model that GM knows about. The repair was under warranty, completed and the car returned to me. Less than 2 weeks later the check engine light came on and the diagnostic gave the same error. I took it back to the dealership and I got 3 different answers. One person told me it was an exhaust issue that was causing the turbo to overheat (the car is kicking out excessive amounts of carbon monoxide), the second person told me there was no issue and they weren't sure why the check engine light went off, the third person said it seemed like the exhaust and the overheating was a safety issue and it shouldn't be driven. They ultimately refused the repair and said bring it back if it gets worse. I called GM corporate to report the dealership and ask for an actual…”
Owner complaint to NHTSAFiled Feb 12, 2026Unknown or other, EngineODI 11717561
“The oil cooler/oil housing leaks oil on every single one of these vehicles, spanning many years, due to its plastic housing, mounted up against a hot engine. The cost of repair is between $2000-3000 at a dealership.”
Owner complaint to NHTSAFiled Feb 6, 2026EngineODI 11716193
“Car smoking under the hood not even a month after getting repairs done to it for the same issue of coolant loss. Replaced engine oil cooler, coolant housing, and turbo. Car started smoking again less than a month later and mechanic baffled at what it may be this time for there is no warning lights illuminated to point to the problem. The vehicle has had its regular maintenance on time.”
Owner complaint to NHTSAFiled Apr 17, 2025EngineODI 11655325

Showing 6 of 30 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 7, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2018 Trax problem areas