2009 Chevrolet Impala electrical system problems

“I believe the passenger seat occupant sensing and airbag issues from recall 16V507 have not been fixed. I am still having issues related to it, even though I had it fixed.”

“Smelled an odor of burning wires when using rear defroster. Defroster then stopped working. After further troubleshooting I observed the wire pigtail under the front passenger door was charred and burned. The pin inside the harness that was burned was the rear defroster. After further research I found this is very common for the Chevy impala. However no recall existed. I feel it is a fire risk due to the fact that the wires over heated enough to melt and char the plastic surrounding the electrical pin within the harness. Pictures was taken of the damage.”

“I have a 2009 with 77000 miles 0n it I have fix the knocking noise under dash 3 times now it is a actuator there are 2 of them. I have also found by spraying Carburetor cleaner in the throttle body just remove the the big air hose and spray all around in side this stops the the speed reduction control lite from coming on saying you have no power. The problem I'm having now is while I'm driving the dash lights go out and radio light goes dim. after a while the lights come back on bright and working great they go on and off when they want to The lights showing me the mileage works great all the time its just the dash lights going on and off and my car just pass smog in California in June. I now live in Texas ,I have to have my car inspection here and it failed do to a EVAP and a 02 sensor not responding. They tell cause I replace the battery this cause the computer to reset and these 2 sensors have not reset yet and I have to drive the car 100 miles to make sure they reset to the computer So these are the problems I have been having with my car. You can find your car problem on you tube by putting in the year and make of your car saying what light came up and usually its a easy fix”

“The contact owns a 2009 Chevrolet Impala. The contact stated that upon attempting to start the vehicle, the vehicle failed to start as intended. The contact then observed smoke coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the wiring harness and observed that the wiring was exposed. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 14V355000 (Electrical System), but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 222,000.”

“Driving home one night, August 8th, 2023 (thank goodness it was night) took a turn and got a service traction control light with a ding ding ding noise (I assume to alert me that something is wrong) and then it said engine power reduced which I assume happens because if your traction control is bad, it doesn’t want you slipping. Immediately called my father and he said to just drive it home and we’ll check it out. Not 2 miles later, my engine just stopped and it went into ignition. I couldn’t steer, I couldn’t stop because the engine was no longer running. I’ve driven a time or 2 (more like backed up) when I didn’t turn my key all the way and it was in ignition and that’s how it felt because it wasn’t on. This was very scary because I thought the car had just gave out. The engine just stopped and I got warning saying "STARTING DISABLED, SERVICE ENGINE THROTTLE " this is my first car, and after reading the complaints on it, I thought it was a recall. We ended up changing out the gas pedal, which made the problem go away right away, and I haven’t had issues with it since. Failure Mileage: 175K”

“While driving the car it would pop up a message saying “ENGINE POWER REDUCED”. Today while driving it home it popped up with a message saying “STARTING DISABLED, SERVICE THROTTLE” and then the car wouldn’t drive and I had to pull over on the side of the road. For months now when I drive and accelerate at times the car would almost grind. I believe it has to do with the traction control or the transmission.”