Saw there hasn't been a post on this for awhile.
Had the Traction Control/ECS issue. First noticed the cruise control kicked off, my RPM went up, the car slowed down. I switched over to manual mode. The warning messages were flashing on and off. I held the info button down and they reset. Since it has been a long time since it has happened I wanted to wait a few days before I took it into the dealer. Seems to be happening everyday now. Starts soon after I get into highway cruise speeds. Don't notice it much around town. Doesn't keep a hard fail so I might just have a damaged brake control module or a wiring problem. The dealer Service will hopefully find some stored codes to help narrow it down.
The brake lights didn't come on that I noticed. I will look for that.
I will take it in today to see what codes if any are stored. I noticed this morning that it occurred when the car's cruise control is on and I was on a downgrade. The cruise went off and the traction warning lamp came on. I hope it does it again on the way to the dealer. Hate showing up and and there isn't a symptom.
The brake lights didn't come on that I noticed. I will look for that.
I will take it in today to see what codes if any are stored. I noticed this morning that it occurred when the car's cruise control is on and I was on a downgrade. The cruise went off and the traction warning lamp came on. I hope it does it again on the way to the dealer. Hate showing up and and there isn't a symptom.
Keep me updated in regards to your progress at the dealer. Feel free to send me a private message if you have any questions in the meantime. Thank you.
The Service dept. at Seaview In Lynnwood didn't find anything conclusive in the codes so they relearned the brake pedal. Same thing happened the next 2 mornings on the way to work. Didn't happen on the way home though. I hate intermittant problems. Left the car overnight pick it up today hopefully. i did noticed a down shift as the ECS light came on and the cruise kicked off. Thanks for the note Tricia
If your concern does not seem to be resolved, please feel free to contact me privately. Be sure to include your contact information, VIN, current mileage, and dealer information. Thank you in advance.
The Service dept. at Seaview In Lynnwood didn't find anything conclusive in the codes so they relearned the brake pedal. Same thing happened the next 2 mornings on the way to work. Didn't happen on the way home though. I hate intermittant problems. Left the car overnight pick it up today hopefully. i did noticed a down shift as the ECS light came on and the cruise kicked off. Thanks for the note Tricia
I'm guessing their next attempt at a fix will be putting dielectric silicone gel on the BCM connector.
If the traction control kicked off there almost has to be a trouble code stored somewhere, not on your paperwork from the dealer? Here's a bulletin, you may want to print this out and take it with you to the dealer next time.
#08-05-22-009C: Intermittently Brake Lights (Stop Lamps) Do Not Function Correctly, Cruise Control Inop, DTCs C0131/C0161/C0277 (Perform Repair Outlined) - (Sep 30, 2010)
Subject: Intermittently Brake Lights (Stop Lamps) Do Not Function Correctly, Extended Travel to Shift Out of Park, Cruise Control Inoperative, DTCs C0131, C0161 or C0277 Set (Perform Repair as Outlined)
Condition
Some customers may comment that intermittently the brake lights do not function correctly. Other symptoms may include extended pedal travel required to shift out of PARK, cruise control does not function correctly, and DTC C0131, C0161 and/or C0277 may be set.
Cause
The most likely cause of this condition is high resistance due to terminal fretting corrosion in the body control module (BCM) C2 or X2 connector (specifically pins 18, 31 and 59).
Correction
DO NOT replace the BCM for this condition. Disconnecting the C2 or X2 connector, adding dielectric lubricant and reconnecting the connector per the procedure below will correct the high resistance condition due to terminal fretting corrosion.
Remove the right side front floor console side trim panel to access to the Body Control Module (BCM).
Locate the C2 or X2 connector on the BCM.
Unlatch the connector and disconnect the connector from the BCM.
Apply dielectric lubricant (clear gel), GM P/N 12377900 (in Canada, use P/N 10953529) or equivalent, on all the connector pins (apply with a one-inch nylon bristle brush). This will treat the pins against fretting corrosion.
Reconnect the connector back on the BCM and re-latch. Wipe away any excess lubricant.
Reinstall the right side front floor console side trim panel.
Using the Tech 2®, check that the BPPS ratio is equal to BPPS learned home when the brake pedal is not depressed.
• If they are equal, the brake lamps should be operating correctly and no further steps are necessary.
• If they are not equal, perform the Brake Pedal Position Sensor Calibration procedure in SI to complete the repair.
Verify proper operation of the brake lights. If incorrect, refer to SI and perform normal diagnostics.
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Service Traction Control/ ECS
Linear Mode
