3.4

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
38,667 miles

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problem #3

Oct 122021

Impala

  • miles
Traveling at 58 mph in Cruise Control for 10 minutes I increased speed with 4-6 rapid pushes of the Accelerate button in less than 1.5 seconds, Each push is 1 mph. I have never pushed it that rapidly.The engine acted as if I floored the accelerator & the transmission went from 4th to 3rd gear, speed went to 70+ and rapidly increasing. I stepped on the break pedal several times to disable CC but no help, I switched the CC button to the off position several times, no help. Now at 85+ and accelerating hard in wide open throttle (WOT). I shift to Neutral and turned the ignition to the ACC position to retain steering ability as the engine was RPM'ing out to destruction. I coasted off the highway and set ignition to off. After a few minutes I turned engine on and it rev'd out of control, still WOT. Ignition off did not reset the problem. I opened the hood to disconnected the battery & I observe that neither the CC or accelerator cables are not holding the throttle body (TB) in "WOT", it was closed in an idle position. It is not mechanical. I disconnected the battery for several minutes and then the system operated normally. I have used CC a million times but never have pushed that accel button that fast. I served 7 years as a Reactor Operation onboard US navy Fast attack Submarines, have torn apart and assemble mechanical and electrical reactor systems. I have been a Hardware Engineer for 40+ yrs and have 10 US patents in fault tolerant server design. I've been a car guy since 5 yrs old. This is a problem with the cars computer or its code. The rapid pushing of the CC accel button is key here as well as memory retaining this CC state after Key OFF. Its a good thing I experienced with many hard casualty life and death situations while serving, because my car was accelerating out of control, my experience and training in the US Military taught me to keep cool and think.You really should investigate this. I can tell you more specifics but I'm character limited.

- San Jose, CA, USA

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problem #2

Nov 042007

Impala 6-cyl

  • Automatic transmission
  • 66,000 miles
My cruise control light goes on and off without me pushing the button on the steering wheel. It won't work for that day or longer, then it works again. Just wondering if it is the fuse or the module.

- Seneca Falls, NY, USA

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problem #1

Oct 302005

Impala

  • 50,000 miles
Cruise control disengages itself when climbing moderate rises in road.

- Cleveland, OH, USA

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