P0171 on CHEVROLET EQUINOX — System Too Lean Bank 1

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

"P0171 indicates: System Too Lean Bank 1. This is a fuel and air metering code. 3 CHEVROLET EQUINOX owners have reported this to NHTSA."

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

"Based on 3 NHTSA reports, the most commonly cited components are: Service Brakes, Hydraulic,Electrical System, Power Train, Engine,Fuel/Propulsion System. These percentages are based on the component field in owner complaints."

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

"Of 3 NHTSA reports for this code on CHEVROLET EQUINOX, 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 EQUINOX 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 EQUINOX

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.

3 CHEVROLET EQUINOX owners have reported this issue to NHTSA across model years 2006-2023. Most reports come from the 2006, 2023 model years.

Real CHEVROLET EQUINOX Owner Reports

Source: NHTSA Complaints Database

"I took the vehicle to the shop to get it checked on 11-21-11. we took the vehicle thinking that a piston was bad, because that was the way it felt, like not getting the right pressure from the piston once the brakes were activated/pressed."

— 2006 CHEVROLET EQUINOX owner · SERVICE BRAKES, HYDRAULIC,ELECTRICAL SYSTEM · Filed 11/21/2011

"Vehicle will not pass state required emission, due to readiness error code. for reasons unknown the evap and egr system code will not reset (not ready code). we were told by several mechanics to drive the vehicle for several hundred miles."

— 2006 CHEVROLET EQUINOX owner · POWER TRAIN · Filed 04/14/2011

"Traveling 75 mph on a 3-lane highway when the car jerked (as if it was downshifted), started to rattle, and then ultimately a CE came on with the "Engine Power Reduced" warning on the dash."

— 2023 CHEVROLET EQUINOX owner · ENGINE,FUEL/PROPULSION SYSTEM · Filed 01/08/2024

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

📊 Complaint Trend by Model Year

2

'06

1

'23

Common Causes on CHEVROLET EQUINOX

Based on NHTSA complaint component analysis for this vehicle.

SERVICE BRAKES, HYDRAULIC,ELECTRICAL SYSTEM 33.3%

POWER TRAIN 33.3%

ENGINE,FUEL/PROPULSION SYSTEM 33.3%

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 EQUINOX? ▾

P0171 indicates: System Too Lean Bank 1. This is a fuel and air metering code. 3 CHEVROLET EQUINOX owners have reported this to NHTSA.

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

Based on 3 NHTSA reports, the most commonly cited components are: Service Brakes, Hydraulic,Electrical System, Power Train, Engine,Fuel/Propulsion System. These percentages are based on the component field in owner complaints.

Is P0171 serious on my CHEVROLET EQUINOX? ▾

Of 3 NHTSA reports for this code on CHEVROLET EQUINOX, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my CHEVROLET EQUINOX 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.