P0171 on CHEVROLET TRAVERSE — System Too Lean Bank 1

Q: "What does P0171 mean on a CHEVROLET TRAVERSE?"

"P0171 indicates: System Too Lean Bank 1. This is a fuel and air metering code. 2 CHEVROLET TRAVERSE owners have reported this to NHTSA."

Q: "What are the most common causes of P0171 on CHEVROLET TRAVERSE?"

"Based on 2 NHTSA reports, the most commonly cited components are: Power Train,Electronic Stability Control (Esc),Engine, Engine And Engine Cooling. These percentages are based on the component field in owner complaints."

Q: "Is P0171 serious on my CHEVROLET TRAVERSE?"

"Of 2 NHTSA reports for this code on CHEVROLET TRAVERSE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my CHEVROLET TRAVERSE shows P0171?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0171 Means on Your CHEVROLET TRAVERSE

P0171 is a diagnostic trouble code indicating: System Too Lean Bank 1. This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 CHEVROLET TRAVERSE owners have reported this issue to NHTSA across model years 2013-2020. Most reports come from the 2013, 2020 model years. The most commonly reported component is Power Train,Electronic Stability Control (Esc),Engine (50.0% of reports).

Real CHEVROLET TRAVERSE Owner Reports

Source: NHTSA Complaints Database

"Car stalls while idling. the rpm's and the battery gauge go up and down while driving on city streets and highway. it has also been warm and cold weather. the car will reduce speed on it's own while this is happening. the vehicle drives rough and the engine sounds harsh."

— 2013 CHEVROLET TRAVERSE owner · POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC),ENGINE · Filed 06/08/2016

"The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at undisclosed speeds, there were abnormal sounds coming from the exhaust system. The contact stated that the vehicle sounded like a motorcycle."

— 2020 CHEVROLET TRAVERSE owner · ENGINE AND ENGINE COOLING · Filed 10/06/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'13

1

'20

Common Causes on CHEVROLET TRAVERSE

Based on NHTSA complaint component analysis for this vehicle.

POWER TRAIN,ELECTRONIC STABILITY CONTROL (ESC),ENGINE 50%

ENGINE and ENGINE COOLING 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0171 mean on a CHEVROLET TRAVERSE? ▾

P0171 indicates: System Too Lean Bank 1. This is a fuel and air metering code. 2 CHEVROLET TRAVERSE owners have reported this to NHTSA.

What are the most common causes of P0171 on CHEVROLET TRAVERSE? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Power Train,Electronic Stability Control (Esc),Engine, Engine And Engine Cooling. These percentages are based on the component field in owner complaints.

Is P0171 serious on my CHEVROLET TRAVERSE? ▾

Of 2 NHTSA reports for this code on CHEVROLET TRAVERSE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHEVROLET TRAVERSE shows P0171? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.