my 2005 bonne gxp transmission only gets reverse ?

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bigrod64
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my 2005 bonne gxp transmission only gets reverse ?

Post by bigrod64 »

I went to get the car washed the other day,and it was performing as usual great ! but when i got in the line for the car wash i needed to back up.So as i put the car in reverse and moved back it was fine ,but then when i put it back in drive it went backwards again,so i looked down to make sure it was in the right gear and it was in the (d) postion. So to make a long story short i tried every other gear and the car only moved in reverse ? then i shut it down and it would not start back up ? is this because iits stuck in the reverse gear or something else. :dontknow: PLEASE HELP I NEED MY GXP.
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CMNTMXR57
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Re: my 2005 bonne gxp transmission only gets reverse ?

Post by CMNTMXR57 »

Copying my response from the duplicate thread in the newb section.
Yea, that would be the nuetral safety switch not allowing it to start again.

Could be the cable as mentioned above (either off the trans or out of adjustments), could also be a bad shifter assembly sending the wrong (or no), signal to the BCM. Not sure how fancy ours was as I never faced that problem, but some GM's have very tempermental prox switches in the shifter assembly that when they go south, can generate issues or DTC's and error messages (Shift to Park is a common one).
I piggybacked off of Andrews response where he posted that the cable could've come off the trans.
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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
bigrod64
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Posts: 18
Joined: Thu Mar 17, 2011 10:43 pm
Year and Trim: 2004 PONTIAC BONNEVILLE GXP

Re: my 2005 bonne gxp transmission only gets reverse ?

Post by bigrod64 »

Thanks i got it,i will let you guys now in a couple of days what the diagnoses was !
bigrod64
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Year and Trim: 2004 PONTIAC BONNEVILLE GXP

Re: my 2005 bonne gxp transmission only gets reverse ?

Post by bigrod64 »

Thanks guys the info you gave me was the exact problem the little plastic clip that holds the shift cable was broken and the neutral safety switch keep the car from starting.reattached the cable with a new piece and she fired right up a million THANKS to you guys knowledge is power glad to be apart the club THANKS AGAIN AND AGAIN ! GXP ON THE ROAD.
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CMNTMXR57
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Re: my 2005 bonne gxp transmission only gets reverse ?

Post by CMNTMXR57 »

Good to hear it was something simple. Hope they didn't gouge you to to fix it.
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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2019 Chrysler Pacifica Limited: Mommy's new RGC
2015 Chrysler Town & Country Limited Platinum: Kids new RGC
2011 Camaro SS
2009 Pontiac G8 GT: L76, Sport Red Metallic
2004 GMC Sierra 2500HD: Victory Red - 8.1L Big Block and Allison
2003 Chevrolet Suburban 2500: Doeskin Tan - 8.1L Big Block... RIP
1999 Chevrolet Suburban: Sunset Gold Metallic - RIP
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