P2176 — Throttle actuator control system — idle position not learned

Code P2176 is a standard OBD-II diagnostic trouble code: Throttle actuator control system — idle position not learned.

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In our record, P2176 is reported only on Chevrolet vehicles , against electrical and cruise control failure patterns , across 2006–2011 model years.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P2176 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P2176 5 patterns

2011 Chevrolet Malibu

electrical — Throttle body / throttle position sensor malfunction

2010 Chevrolet Traverse

electrical — Engine stalls or shuts down while driving

2009 Chevrolet Impala

cruise control — Accelerator Pedal Position Sensor / Throttle Body Failure

2006 Chevrolet Impala

electrical — Reduced Engine Power / Throttle Actuator Control Module (TACM) Failure

2006 Chevrolet Malibu

engine — Random stalling / loss of power with limp-mode messages

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →