Diagsheet

2018 Chevrolet Traverse · symptom sheet

Check engine light or misfire

  • 36owner reports
  • 54,000median miles
  • 0involved a crash

Newest report Jun 19, 2026 · checked Sep 9, 2026

199 of the 459 complaints on this car are about the engine. 36 of those describe misfire.

Tick what matches of 36 reports

11
7
7

What got replaced

Owners who name the part that was replaced mention the catalytic converter (6 reports).

Recalls and investigations

No recall on the engine covers the 2018 model year as of Sep 9, 2026.

When it happens

The middle half of failures fell between 18,835 and 87,000 miles, from the 28 reports that gave a mileage.

218
819
121
222
523
1124
425
326

What owners wrote

“Check engine light came on after feeling hesitation while driving and roughness while stopped. Diagnostic eval was done at shop and Evaporation Emissions Purge Valve was found to be faulty and replaced. Mechanic stated after the repair that this was a problem with certain year Traverses (unsure of which at the time) and an extended warranty was added that include 10 years or 150,000 miles.”

Filed Jun 3, 2026 · 150,000 miles

“Transmission issues :hard shifts, shift delays , hesitation upon acceleration, trouble on reverse gear. Engine issues: grinding noises , ticking noises ,check engine light turning on, loss of power engine Vibrating in steering wheel when braking.”

Filed Oct 19, 2024

“Catalytic converter failed, 3rd time in 2 years. Vehicle began losing power while on interstate. Issue has been confirmed by dealership inspection. Issue has been claimed by many other owners of this make and model but no recalls issued or warranty coverage for known issue. Check engine light came on just as issue began while driving with my family.”

Filed Jan 10, 2024

“I went to shell and got Gas on september 7th and september 8th when i started. My traverse it started shaking like it was cold then the check engine light came on i went to autozone it read a p0496 code forevap system flow during non purge”

Filed Sep 11, 2023

Should you keep driving it?

This page can't tell you that. 0 of 36 reports involved a crash and 5 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

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