2011 Chevrolet Impala Transmission & Power Train Problems
NHTSA component category: POWER TRAIN · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How power train ranks on this vehicle
Share of the 505 complaints citing each category; one complaint can cite several. Full breakdown on the 2011 Chevrolet Impala overview page.
What owners report
“MY 2011 IMPALA IS READING "SERVICE THROTTLE. REDUCE ENGINE POWER" AND THEN PROCEEDS TO SHUT DOWN. EVEN AFTER REPLACING ACCELERATOR PEDAL POSITION SENSOR, VEHICLE IS…”NHTSA complaint 10493682 — filed 01/21/2013
“THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH ALL THE WARNING LIGHTS ILLUMINATED AND INDICATED THAT THE…”NHTSA complaint 10480863 — filed 10/17/2012
“THE CONTACT OWNS A 2011 CHEVROLET IMPALA. THE CONTACT STATED THE VEHICLE WOULD SURGE AFTER IT SHIFTED INTO GEAR . THE VEHICLE WAS TAKEN TO…”NHTSA complaint 10433656 — filed 10/31/2011
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Power Train complaints by year filed
Frequently asked questions
Does the 2011 Chevrolet Impala have transmission & power train problems?
Power Train is the #5 most-reported problem area on the 2011 Chevrolet Impala: 63 of 505 complaints on file (12.5%). Complaints are unverified owner reports, not confirmed defects.
How many complaints does the 2011 Chevrolet Impala have in total?
505 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 22 involved a crash, 5 involved a fire, 25 reported injuries, and none reported deaths.
What does NHTSA's power train category include?
NHTSA groups complaints about the transmission (automatic or manual), driveline, axles, transfer case and related parts under a single component category called POWER TRAIN. This page reports that category as NHTSA defines it.
