jaf2424

so i got the gauge plactic of a g5 pontiac to put in my cobalt speedo only to realize that it went to 140 not 120 (oops) is there a way to reflash it or anything so i dont have to buy the whole cluster? i think its stupid that the cars are the same and gm put an extra 20 mph on the pontiac one...they never go above 110

nhanson

iTrader: (1)

Nope. Its controlled by the cluster. So stick with stock or go find the whole cluster.

tru2nrtt777

iTrader: (1)

A new cluster isn't that much, I got a SS/SC cluster for $70 shipped a few years ago.

chevygirl2006

That's not a g5 cluster. It came in cobalts too.

chevygirl2006

If its the white one you're talking about.

nhanson

iTrader: (1)

Cobalt LTs and ALL G5s got them

chevygirl2006

The cobalt LT has the white 140mph speedo? I think they have the black 120 one.
Cobalt ss/na has the white 140

chevygirl2006

Hmm..you are right. I just checked. I didn't know that.

08G5GT2.4L

You don't have to reflash anything. The cluster will read right even if your changing from 120 mph to the SS 160. It calibrates itself. Put the new one in and drive away, no flashing, no reprogramming, your speed will be what the gauges read.

CordiaDOHC

iTrader: (2)

What this guy said. I swapped to a 160mph from a 140mph and it works perfectly with no reflash. As long as they are similar years it will work well. Otherwise you might lose some DIC functions.

08G5GT2.4L

That may not be the case; for similar years i mean. I put a 05 SS/Sc cluster in my 2008 GT. Everything works 100%, even added the menus for tire pressures. Just doesnt have the TPMS light in the centre thats all.
but just to be safe its probably better to get one from the same year.

tru2nrtt777

iTrader: (1)

You guys aren't reading him right, he only has the face, not the whole cluster... Like if you get a custom one from black cat customs or something.

CordiaDOHC

iTrader: (2)

Oops just skimmed this. Since thats the case I'm not even sure if it would work with a reflash. But 140moh clusters can be had for 50 shipped. So just get a whole cluster.

jaf2424

thanks everyone for the input...im probably just gonna buy a whole cluster seems to be much easier then what i was gonna do

Crav3

iTrader: (1)

So your car doesn't go over 110? Ive seen mine go to at least 120-125 lol

tru2nrtt777

iTrader: (1)

The LS's with 112mph rated tires have a limiter at 107, LT's have the limiter in the 1teen's, IDK about SSNA's and SS2.0's had the limiter set at 155.

LS6Rally

iTrader: (14)

The Pontiac cluster itself lights up red, the chevy ones are more white IIRC.

as said above, you need the whole cluster. 05 adn 06 ineterchange, and 07+ interchange. if you put an 07 cluster in an 06 the dic will not work, and vice versa.

CordiaDOHC

iTrader: (2)

I'm an ss/na and have been to 130-135. But nothing after that. Also an auto

jaf2424

i have an lt thats why it only goes in the 1 teens, only got it to 110 before

nhanson

iTrader: (1)

Base models go to 112

tru2nrtt777

iTrader: (1)

My 06 LS only goes to 107 unless I use cruise control and I can slowly tap it up to 128... well that is as high as I got it before I had to slow back down.