Last post on Sep 12, 2013 at 1:45 PM
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#1 of 13 2007 Impala LTZ "starting disabled service throttle" "engine power reduced"
Mar 11, 2012 (5:04 pm)
I own a 2007 Impala LTZ. Right before 100,000 miles, the car started shifting hard from first to second. I took it to the dealer, who told me there was nothing wrong with the car and they couldnt reproduce the problem. I called Chevrolet and asked if the warranty would cover the problem. They would have if the dealer could identify what was wrong. So, basically I ended up with a bill from the dealer and no help from Chevrolet. Now, three months later the car is really bad and is getting worse. The warranty has run out. I keep getting "starting disabled, service throttle" "engine power reduced" "service traction control" "low oil" , and those are just a few of the many, plus my engine light is back on. Less than six months ago we paid the dealer $997 for repairs, $400 just a few weeks ago to another mechanic to replace something to do with the throttle. Its still running awful, stalls, power is reduced all the time, and dangerous. Im furious because I tried to get it fixed before the warranty ran out. Now Im going to be stuck with a huge bill. Anyone have any ideas about what the problem might be? Any suggestions? We live near Syracuse NY and bought the car from Sun Chevrolet in Chittenango NY.
#2 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [lauriebrown]
Apr 29, 2012 (7:32 am)
I've been having the same issue with my car I have a 2009 Impala LT, and starting the beginning of January 12" the sensors to "service traction control" and "engine power is reduced" have been coming on. I've been to 3 different shops including Chevy who told me that it had something to do with the brakes and a hub and low pressure cap, they charged me 1500.00 for all that. The sensors were still coming on. I went to another mechanic before who told me that I needed a new computer chip in my car and I had a voltage problem somewhere and a small leak. One day the indication to tighten my gas cap came on and all the sensors went off after that. Easter Sunday, the sensors came back on and went away again and now after just getting the car fixed again last Monday the sensors came back on, however this is the only time the car hasn't displayed the "starting disabled service throttle" message and shutoff on me. The dealer has told me I'm not under warranty anymore and I only have a power-train warranty but I was told there is nothing wrong with the electrical system, transmission or engine. No one seems to know what is wrong with my car either, including Chevrolet. I was told I had too many miles on there for me to file a suit because I feel the car is a lemon. Considering the fact that I purchased it in November of 2010. I'm looking for suggestions also, I live in Baltimore County, MD.
#3 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [lauriebrown]
Apr 30, 2012 (6:03 am)
I see it's been a while since your original post here; have you made any progress towards resolving this? Please contact us at socialmediagm.com if we can answer any questions or look into this further.
GM Customer Service
#4 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [ashleyem]
Apr 30, 2012 (6:06 am)
If we can look into this further with you, please send an email to socialmediagm.com with your name/Edmunds username, phone and address, the last 8 of your VIN and current mileage, the name of your dealership and details on appointments with your dealership pertaining to this matter (date, how much was paid, etc).
GM Customer Service
#5 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [gmcustsvcsarah]
May 03, 2012 (4:10 am)
I just start having the same problem first the check engine light start coming on they said it was and emmisions problem I had that fix the it start reading reduced engine power had it checked they said they didn't find anything now me check engine light comes on. Still saying reduced engine power and starting disabled service throttle it stalls then 5min later it start back up fine wtf. My impala is a 2008 only 50,000 miles on it and they still telling me they don't what's wrong wit it
#6 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [ats21]
May 03, 2012 (7:06 am)
We're happy to follow up on you with this; please see the above message on how to contact us and what information we request be included to get started.
GM Customer Service
Jul 07, 2012 (8:26 am)
i just started having the same "service throttle" "engine power reduced" issue. I have been looking online and surprised on how many people are having the very same issue. I will need to get my car fixed asap and do not want to go thru the same money spending spree trying to figure out the problem. Has this been figured out? Can you give me some info on what is causing this so i can get it fixed the first time?
#8 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [gmcustsvcsarah]
Feb 03, 2013 (9:29 am)
I've just experienced the same issue, I got a reduced power error then service traction error it began idling and shifting rough and then roughly 15 miles driving the car - 2009 Impala - stalled and the error starting disabled service throttle came on. The cars milage is at 55695 and I've owned it since December of 2012. Please help.
#9 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [gmcustsvcsarah]
Feb 05, 2013 (5:40 pm)
Ive got the same problem w/2007 impala LT car suxxx trading it in on a Nissan
#10 of 13 Re: 2007 Impala LTZ "starting disabled service throttle" "engine power reduced" [nextwavesvc]
Feb 06, 2013 (7:07 am)
Please feel free to contact us via socialmediagm.com, nextwavesvc, and we'll check into this with you! Include your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation so far.
Sarah, GM Customer Service