Overdrive - Chevy and GMC Duramax Diesel Forum

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post #1 of 16 (permalink) Old 11-04-2008, 05:55 PM Thread Starter
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Overdrive

I was coming down a hill today 65mph, hit the tow haul buttom and D in a box with a slash thru it appeared on the dash and I lost od. Rolled into town shut the truck off & on and it went off, back to normal. Anyone know what happened.

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post #2 of 16 (permalink) Old 11-04-2008, 06:04 PM
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you hit the button twice apparently that is the symbol that you shut the overdrive off.

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post #3 of 16 (permalink) Old 11-04-2008, 07:52 PM
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Holding the button down too long will drop the OD.

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post #4 of 16 (permalink) Old 11-05-2008, 04:50 AM Thread Starter
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So turning the truck off and on is the only way to turn it back on. Nothung to do with my programmer.

2011 Denali
67 GTO 467cid 615hp (pump gas)
99 700 Mach1 Ski-doo full race 192hp
Modded 08 Can-Am Renegade 800
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post #5 of 16 (permalink) Old 11-05-2008, 05:34 AM
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Nope all you have to do is push it in and hold it again OD will return.

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post #6 of 16 (permalink) Old 11-05-2008, 06:28 AM
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thats would be the O/D(Over Drive)Button,you can turn it on and off as you wish by holding it in or hitting the T/H(Tow Haul)button twice.

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post #7 of 16 (permalink) Old 11-05-2008, 09:14 AM
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Mine you push and hold the T/H button, but either way you can turn it on and off.

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post #8 of 16 (permalink) Old 11-05-2008, 10:20 AM
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Do the 5 speed Allys like in the '01 trucks have this option too? I never thought to try...

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post #9 of 16 (permalink) Old 11-05-2008, 11:34 AM
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No, my '02 didn't.

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
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post #10 of 16 (permalink) Old 11-05-2008, 11:42 AM
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I think it started in either 03 or 04.

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