P0175 on the All-New 2024 Chevrolet Traverse
The P0175 code on your 2024 Traverse indicates a rich fuel condition. The 2024 Traverse is completely redesigned with a new 2.5L turbocharged four-cylinder engine producing 315 horsepower, replacing the previous 3.6L V6. This new engine uses direct injection and is paired with an eight-speed automatic transmission. As an inline four-cylinder, the Bank 2 designation refers to a secondary monitoring position rather than a separate cylinder bank.
New Engine, New Diagnostic Considerations
The 2.5L turbo in the 2024 Traverse is part of GM's new engine family. It produces more power than the outgoing V6 while promising better fuel economy. As a first-year application in the Traverse, some P0175 occurrences may be related to initial software calibration or early production assembly variations. The turbocharger adds diagnostic considerations not present on the previous naturally aspirated V6.
Symptoms
- Check engine light on the new widescreen display
- Fuel economy below the expected 22 city / 29 highway MPG
- Turbo hesitation or inconsistent boost
- Rough idle or engine vibration
- Dark exhaust during acceleration
- Fuel smell from exhaust
Likely Causes
1. MAF Sensor Contamination
Even at low mileage, PCV blow-by during the new engine's break-in period can coat the MAF sensor. The turbo intake path draws air past the MAF sensor at high volume, and any contamination on the sensing element causes under-reading of airflow. Cleaning is the first and cheapest step.
2. ECM Software Calibration
First-year engines often require calibration refinements. GM may release a TSB with updated fuel trim algorithms for the new 2.5L turbo. A software update at the dealer could resolve P0175 without any hardware replacement.
3. O2 Sensor Defect
On a new 2024 model, a failing O2 sensor is a manufacturing defect. The new exhaust system routing for the turbo engine means different heat exposure patterns compared to the previous V6. A defective sensor is a straightforward warranty replacement.
4. Turbo Boost System Issue
The new turbo installation may have initial production fitment issues with charge air connections, intercooler plumbing, or wastegate calibration. A boost leak or wastegate issue creates a discrepancy between measured and actual air entering the engine, causing rich fueling.
What to Do
- Take the 2024 Traverse directly to the Chevrolet dealer
- Ask about TSBs for the new 2.5L turbo engine
- Clean the MAF sensor if you want a quick check first
- Document symptoms and mileage for the dealer visit
Costs
Under warranty: free. The 2024 Traverse is under full GM warranty with 3-year/36,000-mile bumper-to-bumper and 5-year/60,000-mile powertrain coverage. All P0175 repairs should be handled at no cost.
Priority
Schedule a dealer visit within a week. Running rich on a new turbo engine during break-in can cause oil dilution and accelerated bearing wear. The warranty covers the repair, so there is no reason to delay.