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P2176 on CHEVROLET IMPALA

Throttle Actuator A Control System - Idle Position Not Learned

NHTSA Reports
2
Severity
Medium
Most Affected
2006, 2009
Crashes / Fires
0 / 0
Source: NHTSA Complaints Database · SAE J2012

What P2176 Means on Your CHEVROLET IMPALA

P2176 is a diagnostic trouble code indicating: Throttle Actuator A Control System - Idle Position Not Learned. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 CHEVROLET IMPALA owners have reported this issue to NHTSA across model years 2006-2009. Most reports come from the 2006, 2009 model years. The most commonly reported component is Electrical System,Electronic Stability Control (Esc),Engine (50.0% of reports).

Real CHEVROLET IMPALA Owner Reports

Source: NHTSA Complaints Database

"Ongoing issue with error message relating to "service traction control" "reduced engine power" appeared 4/10/2016. ongoing history and service related to throttle position and sensor (also serviced) codes p2176; p 2135."

— 2006 CHEVROLET IMPALA owner · ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE · Filed 04/10/2016

"I am having problems with my 2009 chevy impala, it started at 43k, the acceleration pedal was changed when the reduced engine power/service traction control came on."

— 2009 CHEVROLET IMPALA owner · VEHICLE SPEED CONTROL,ENGINE · Filed 07/31/2013

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

📊 Complaint Trend by Model Year

1
'06
1
'09

Common Causes on CHEVROLET IMPALA

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE 50%
VEHICLE SPEED CONTROL,ENGINE 50%

What To Do Next

  1. 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. 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. 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 P2176 mean on a CHEVROLET IMPALA? ▾
P2176 indicates: Throttle Actuator A Control System - Idle Position Not Learned. This is a powertrain code. 2 CHEVROLET IMPALA owners have reported this to NHTSA.
What are the most common causes of P2176 on CHEVROLET IMPALA? ▾
Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Electronic Stability Control (Esc),Engine, Vehicle Speed Control,Engine. These percentages are based on the component field in owner complaints.
Is P2176 serious on my CHEVROLET IMPALA? ▾
Of 2 NHTSA reports for this code on CHEVROLET IMPALA, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.
What should I do if my CHEVROLET IMPALA shows P2176? ▾
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.

P2176 on Other Vehicles

CHEVROLET TRAVERSE
2 reports
→ All codes reported on CHEVROLET IMPALA