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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
89,457 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Chevrolet Impala fuel system problems

fuel system problem

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2009 Chevrolet Impala Owner Comments

problem #9

Jul 292015


  • 190,000 miles


The contact owns a 2009 Chevrolet Impala. The contact stated that the vehicle exhibited a hard start. In addition, whenever driving in reverse, the vehicle stalled without warning. The vehicle restarted and resumed normal operation. The failure recurred intermittently on numerous occasions. The vehicle was taken to an independent mechanic for diagnostic testing. The trouble code detected water in the fuel tank. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 190,000.

- Fountain, MN, USA

problem #8

May 102015

Impala 6-cyl

  • 58,970 miles
My car shut down on me on May 15 2015.service traction control and reduced engine power message appeared. I managed to drive the car home at slow speed.this is a safety issue. I have read reports that similar problems have appeared on other 2009 Impala. Some reports said the car shut down completely in fast moving traffic.I had my own mechanic look at the car and the part that needed to be replaced was thea.I.R. system check valve.I later received a notice from Chevrolet about another problem that could cause the car to shut down unexpectedly. (app) sensor accelerator pedal position sensor.I believe a recall should be issued for these problems because of the potential for accidents on the highway.also, Chevrolet did not cover the cost of the repairs to the a.I.R. pump. Thank you

- Cheswick, PA, USA

problem #7

Feb 022015


  • 50,445 miles
The contact owns a 2009 Chevrolet Impala. The contact stated that while driving approximately 50 mph, the contact noticed that the fuel gauge displayed half a tank and the vehicle came to a complete stop. The vehicle would not restart. The contact had to call for fuel to be brought to the site. Once the fuel was poured into the fuel tank, the vehicle started. The vehicle was taken to the dealer, but they could not duplicate the failure. The contact stated that the failure recurred two other times. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 50,445.

- Hammonton, NJ, USA

problem #6

May 152014

Impala 6-cyl

  • 63,000 miles


I have noticed a sort of jerking or chugging feeling while traveling at different speeds and different environments, such as highway and city. The problem does seem to be worsening. The service technician at the dealership referred to this as a "fishbite". I did not seem to really notice the problem until repair was made to the manifold and crank case gaskets, due to a severe oil leak. The dealership did look into my concern for the "fishbite", but a code was not found and they were unable to duplicate the problem. Is this a precursor to the other complaints involving loss of power while driving?

- Warren, MI, USA

problem #5

Nov 022013

Impala 6-cyl

  • 77,050 miles
When I pressed down on my accelerator pedal (speed limit was increasing from 50mph to 65mph), a message of "starting disabled. Service throttle" came up on the dash. The accelerator pedal and steering wheel completely locked up and the car started to decelerate. I was able to force the steering wheel in order to turn onto a side street (narrowly avoiding a car stopped in the left lane to turn) and park the vehicle in a location out of the main lane of traffic. Had this side street not been there at that exact moment, the possibility of a crash would be very likely as steering was unresponsive and I may have been rear-ended due to the sudden loss of engine power.

- Hamilton, OH, USA

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problem #4

Sep 132013


  • 70,000 miles
The contact owns a 2009 Chevrolet Impala. The contact stated that while driving 55 mph in cruise control, the vehicle began to stall. The vehicle also failed to increase speed when the contact depressed the accelerator pedal. The contact stated that the fuel gauge also failed simultaneously. The vehicle was not inspected or repaired. The manufacturer was notified of the incident and informed the contact that the vehicle was not listed under any recalls. The approximate failure mileage was 70,000.

- Lebannon, TN, USA

problem #3

Aug 082013


  • 99,000 miles


Was driving around 65 when out of no where the check engine light and traction control light came on and the reduce to power message started flashing on the dash it dropped my speed down from 65 to like 20 while on the freeway.

- Dallas, TX, USA

problem #2

Mar 162013

Impala 6-cyl

  • 71,645 miles
The vehicle suddenly decelerated and displayed messages: "reduced engine power" and "service traction control". this was the second incident. The first incident resulted in the engine shutting off completely after the same initial symptoms described; locking up the steering during rush hour traffic (estimated 65 mph, no injures, approx. 4 month ago). Our mechanic cleaned out the throttle body sensor after the first incident, and phoned the dealership with the trouble codes. The dealership refused warranty service as the trouble codes had gone by the time the car had arrived at their shop, and would not take our mechanic's phone conversation as evidence. We were informed that the three services commonly performed to fix the problem were to replace the throttle body, throttle body sensor, and accelerator pedal; the latter not covered under warranty.

- Independence, MO, USA

problem #1

Sep 052012


  • 125,000 miles
Vehicle gives a service throttle starting disabled message and promptly shuts off the engine. If you wait 5 minutes the car will restart and perform as usual.....until the next time. Shutting off the engine at interstate speeds is incredibly dangerous and is going to result in someone being killed. Based upon internet searches this appears to be a known issue, but GM will not proactively fix the problem.

- Noblesville, IN, USA

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