NHTSA Complaint #10855389 — 2006 CHEVROLET IMPALA

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. 8/1/15 I HAVE ADDRESSED THROUGH REPLACING OF THROTTLE POSITION AND SENSOR; BATTERY CABLE (DEALERSHIP SVC DEPT SUGGESTED LOW VOLTAGE RELATED TO THIS ISSUE - RETESTED, ISSUE CONTINUES) PARTS STORE HAS SUGGESTED "THROTTLE ACTUATOR CONTROL MODULE P 1516' CODES ALSO INCLUDE P0121, PO2135, P2119 FOUND PMC TO BE FAULTY -- "REPAIR AND REPLACED" 12/30/2014; THROTTLE BODY ASSEMBLY REPLACED ON APRIL 5, 2014. THIS HAS BEEN AN ONGOING ISSUE FOR TWO YEARS. ENGINE POWER DROPS AND CAR WILL ONLY DRIVE AT A LOW SPEED < 40MPH. THIS IS WHEN THE CAR IS IN MOTION. VARIOUS ATTEMPTS TO RESOLVE THE PROBLEM HAVE BEEN UNSUCCESSFUL. THIS ISSUE BEGAN AT APX 140K MILES AND HAS REOCCURRED AT 166L, 167K, 180K, 193K. SPEEDS THAT IT HAS OCCURRED HAS BEEN AT HIGHWAY SPEEDS OF 60-65MPG TO RESIDENTIAL 25-35MPH. RECORDS HAVE SERVICES DATES ARE AVAILABLE; TOO MANY TO UPLOAD ALL.