Jack the car up and hook a battery charger to the cable on the starter .
Just be careful .
Jack the car up and hook a battery charger to the cable on the starter .
Just be careful .
09 PBM M6 G8 GXP
08 Solstice M5 GXP
05 GTP CompG
88 Fiero Formula
81 Turbo Trans Am
76 Trans Am 455
No, OnStar has its own battery that can even start the car if your main battery is flat. However its only good for one start. If you have OnStar they should be able to unlock for you.
Otherwise your only option is to get that key working or slim jim as stated.
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2015 White Hot Chevy SS - Sunroof/Spare/Stick - BTR Stage 3 cam, headers, intake *Traded 11/11/2023*
2018 GMC Sierra Denali 1500 - 6.2L, Ultimate Pack *Turned in 4/13/2021*
2016 Jungle Green Metallic Chevy SS - Sunroof/Spare/Stick *Traded 2/1/18*
2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Traded 7/7/16*
2008 Panther Black Metallic G8 GT * Sold 6/10/14*
The onstar battery will not start the car - I'd have to see that to believe it - the box (at least on my 09) wasn't anywhere near large or heavy enough to carry a battery with that ability - let alone have connections large enough for starting current.
Sure you can get a smaller battery to crank over that engine but it better have a 8ga or bigger wire connection to the start circuit.
Aside from that I do think on newer car's ONSTAR module can power up the car enough to unlock the car. and I believe those modules have to be replaced after 5 years, or they have some condition monitor on them.
Not sure the g8 module has that.
On the key tumbler thing - pretty sure there is no way your door is keyed for a different key. Unless there was some major repair to your door or it will pulled off another car. As far as the cylinder being stuck I would try to shoot somethink like PB blaster on and in the key hole. (Break free, PB blaster - some penetrating oil and not WD40).
Sorry for your troubles but hopefully everyone here will go and try their key in the door occasionally.
If Guns Kill people, then Spoons Cause Diabetes
The battery for the OnStar remote start is not with the OnStar box. I know it's somewhere in the vehicle, but it's separate from the main battery, and it's one-time use only. Once it's used it needs to be replaced. There were mentions of this around 5 years ago when the car first released (when I got my G8).
2015 White Hot Chevy SS - Sunroof/Spare/Stick - BTR Stage 3 cam, headers, intake *Traded 11/11/2023*
2018 GMC Sierra Denali 1500 - 6.2L, Ultimate Pack *Turned in 4/13/2021*
2016 Jungle Green Metallic Chevy SS - Sunroof/Spare/Stick *Traded 2/1/18*
2011 Radiant Silver Metallic CTS-V Wagon - Corsa Axleback, AirAid Intake *Traded 7/7/16*
2008 Panther Black Metallic G8 GT * Sold 6/10/14*
If Guns Kill people, then Spoons Cause Diabetes
No. You need power to the locks - the battery back up for OnStar is for the OnStar module. It is largely for making the automated emergency call post-accident in the event of a total power failure caused by the crash. Actually, if the battery is too weak (if you read the agreement) OnStar cannot unlock your car.
2009.1 Pontiac G8 GT
White Hot w/ Onyx interior, Prem Package, Sport Package, Sunroof
SHOW: Holden badges, backup assist, & gauges, front clip shaved w/ painted lower grilles, clear bra, matte black hood scoops, 35% tint, auto dimming mirror, Homelink, bass bias mod, VG antenna, VIM, Bluetooth, spare w/ Pace jack kit, glovebox light, white fuse covers, Rotofab radiator cover, engine cover custom painted w/ SS trim, billet aluminum trim, SS hood liner, MGP caliper covers, Third Shift Studios plaque, JBL MS-8, JL amps, Morel and Focal speakers, 12" sub, Redline Goods armrest
GO: Volant CAI, Superchips Cortex 91 tune, BP white catch can, modded lower grille, Solo axle backs; DBA 4000 series rotors; Russell SS brake lines; ATE Blue; Hawk ceramic pads, Camaro SS 20s 245/35F & 275/30R
0-60 MPH: 5.01 Seconds | 1/4 Mile: 13.354 Seconds @ 105.85 MPH | 279kW / 572Nm DynoJet uncorrected
2009.1 Pontiac G8 GT
White Hot w/ Onyx interior, Prem Package, Sport Package, Sunroof
SHOW: Holden badges, backup assist, & gauges, front clip shaved w/ painted lower grilles, clear bra, matte black hood scoops, 35% tint, auto dimming mirror, Homelink, bass bias mod, VG antenna, VIM, Bluetooth, spare w/ Pace jack kit, glovebox light, white fuse covers, Rotofab radiator cover, engine cover custom painted w/ SS trim, billet aluminum trim, SS hood liner, MGP caliper covers, Third Shift Studios plaque, JBL MS-8, JL amps, Morel and Focal speakers, 12" sub, Redline Goods armrest
GO: Volant CAI, Superchips Cortex 91 tune, BP white catch can, modded lower grille, Solo axle backs; DBA 4000 series rotors; Russell SS brake lines; ATE Blue; Hawk ceramic pads, Camaro SS 20s 245/35F & 275/30R
0-60 MPH: 5.01 Seconds | 1/4 Mile: 13.354 Seconds @ 105.85 MPH | 279kW / 572Nm DynoJet uncorrected