Traction control turning off unexpectedly - GMC Acadia Forum: AcadiaForum.net
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post #1 of 14 (permalink) Old 02-10-2011, 09:20 PM Thread Starter
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Traction control turning off unexpectedly

Hi everyone, I have a early 2010 AWD model, 25,050 miles. About every other day, my traction control turns off unexpectedly, and the dash switch to override the traction control does not turn it on. After about a minute of driving when it turns off, i get a engine reduced power on my info message center on dash. The only way to reset it is to pull over, turn ignition off. After I restart engine, engine light says on for a good part of the day. I had onstar run a probe, they came back with code P2138. Anyone else having this problem? Any techs familiar with this. Local dealer will not check problem until 2 weeks. Thank you, Mark.

'10 Gold Mist Metallic SLT-1, pinstriped, Cashmere/Ebony interior,  19's-Goodyear Eagles, no nav, dual sunroof, rear DVD system.
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post #2 of 14 (permalink) Old 02-10-2011, 11:24 PM
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Re: Traction control turning off unexpectedly

2005-2010


All Vehicles - Intermittent MIL illuminated, DTC P2138 with reduced engine power


Do this---Check wiring and connector


DONT do this---Do not replace the throttle body or accelerator position sensor


07-06-04-019C


from what Ive seen online-- this code and reduced engine power is related to the accelerator pedal and or wiring related to this.
This applies to different vehicles (Impala, Colorados, H3's, etc etc) they are to check wiring for bd connections or chaffing.
Recrimp connectors etc.

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L-180,000
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post #3 of 14 (permalink) Old 02-10-2011, 11:31 PM
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Re: Traction control turning off unexpectedly

Throttle sensor issue; which makes sense that the reduced engine power message shows. IIRC; this was on issue on the 08's, haven't seen this come up in quite awhile. I would press your dealer to get your 10 in earlier than 2 weeks

2014 Impala LS (non-eco)-Build date 12/13/2013&nbsp; Mine 3/15/2014<br />"I don't care what you think about me; I don't think about you at all"
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post #4 of 14 (permalink) Old 02-18-2011, 09:14 PM Thread Starter
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Re: Traction control turning off unexpectedly

Thank you, got truck to local Chevy dealer I used to deal with in the past Wednesday evening. They still have vehicle, finally heard from them today, they said they will probably be changing throttle body, doing some replacement linked to the steering column, replacing a accelerator bracket, and repairing my rear power sunroof cover and trying to diagnose why my tranny is acting up shifting. i have rented a 2010 Tahoe LT in the meantime. They also asked me about if I want to perform a emissions service consisting of a air filter change at $70,00, and some king of cleaning for about $160.00. I have just reached 25,000 miles, they said it should have been performed at 15,000 miles. Thank you, Mark.

'10 Gold Mist Metallic SLT-1, pinstriped, Cashmere/Ebony interior,&nbsp; 19's-Goodyear Eagles, no nav, dual sunroof, rear DVD system.
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post #5 of 14 (permalink) Old 02-18-2011, 09:30 PM
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Re: Traction control turning off unexpectedly

air filters are good for 50K. unless you want to change it early.
Im about to change it at 25K. But thats because im going to take a trip.
But I paid $20 for the filter on ebay. AC DELCO. I also know how to take the cover off...
As for the other cleaning... whats that entail?

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L-180,000
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post #6 of 14 (permalink) Old 02-18-2011, 09:35 PM Thread Starter
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Re: Traction control turning off unexpectedly

I'm not sure, he said it was for emissions, my mileage has been very poor since day 1. I can't even break 15-16 mpg. Can it be a injector cleaning? I believe he is going to replace the throttle body, which is under warranty, but has to locate the part. Enjoy the trip, vacation or business? thank you, Mark.

'10 Gold Mist Metallic SLT-1, pinstriped, Cashmere/Ebony interior,&nbsp; 19's-Goodyear Eagles, no nav, dual sunroof, rear DVD system.
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post #7 of 14 (permalink) Old 02-18-2011, 10:24 PM
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Re: Traction control turning off unexpectedly

hmmm, im not familiar with that service..

but maybe its an injector cleaner? I dont know....
Yes- pleasure trip- in 1 month

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L-180,000
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post #8 of 14 (permalink) Old 02-19-2011, 09:50 PM
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Re: Traction control turning off unexpectedly

Keep all of your paperwork and warranty for a while; some injector cleaners mess up the catalytic converters.

2009 Acadia SLT-1 built 07/31/08, DLT, FWD, Summit White, titanium, 7 seater, leather, heated; purchased 06/09 no HUD, no HID, no factory Nav, no S.Roof. 18" wheels, Bose system. Pennsoil Platinum & PF63. Trans flash, water pump, seat rails & steering gear replaced, PS flush & refill with DEX VI.
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post #9 of 14 (permalink) Old 02-19-2011, 10:11 PM
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Re: Traction control turning off unexpectedly

Quote:
Originally Posted by acadia man
They also asked me about if I want to perform a emissions service consisting of a air filter change at $70,00, and some king of cleaning for about $160.00. I have just reached 25,000 miles, they said it should have been performed at 15,000 miles. Thank you, Mark.
and my response would be "how about we see if you can fix the traction control; then we'll talk about this other stuff"

2014 Impala LS (non-eco)-Build date 12/13/2013&nbsp; Mine 3/15/2014<br />"I don't care what you think about me; I don't think about you at all"
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post #10 of 14 (permalink) Old 02-28-2011, 04:49 PM
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Re: Traction control turning off unexpectedly

To the OP:

my wife is having the exact same issue with her 10 w/ 18k on it. Its in the shop for the second time in 3 days. They already replaced the pedal and some sensor the first time and the issue came back the next time she hit the highway. Did you get your issue solved?
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