cruise control
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Dealer had to replace the BCM on my 06 coupe when the cruise control went out.
Others here had problems with the brake pedal. Try lifting the brake pedal with the top of your foot - see if that fixes it.
Others here had problems with the brake pedal. Try lifting the brake pedal with the top of your foot - see if that fixes it.
Safety Car
Joined: Oct 2003
Posts: 3,644
Likes: 13
From: South of Boston MA
This may not apply in your case ('05 C6) but I had a 2001 coupe with no cruise control. The GM tech found a bent pin in the wire harness. The repair was under warranty. Good luck with yours. 
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Racer
Joined: Jun 2005
Posts: 430
Likes: 0
From: Playa Vista CA
When you're not pressing the clutch pedal, the arm presses a push button. If the button is not adequately pressed in cruise control will not engage. It doesn't seem to take much.
I added a 0.5-1mm shim on much clutch arm to keep it pressed. I don't use cruise control, but because the switch was "malfunctioning" (not pressed fully) a check engine light came on.
Onstar diagnostics informed me it was a cruise control malfunction, not critical, should be looked at.
Ever since I shimmed it... no problems.
Burning Brakes
Joined: Dec 2006
Posts: 1,098
Likes: 80
From: Gilroy CA
Another thing to try is just disconnecting the negative terminal of the battery for a couple of minutes to see if it will reset it self. I did that and it fixed that problem for my '07 and it hasn't resurfaced for over a year now. Good luck!!
PHOTOSHOP SPECIALIST
Joined: Aug 2007
Posts: 16,433
Likes: 40
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16
