Hello, Mr. Scotty. I have a 2010 Chevrolet Camaro with 175,000 kilometers (not miles). I received p0897code transmission fluid life exceeded. So I went to the dealer and they said it would be dangerous to change all of the transmission fluid !! you had to put two new quarts in and two quarts out (from the transmission) . What should I do? Should I change the transmission fluid all at once or in stages or let it be ? Thank you
I received p0897code transmission fluid life exceeded
That's a an interesting trouble code. I've never seen it before. I wonder how the computer determines the condition of the fluid.
Anyway, leave the dealer out of it, and go see a transmission specialist. He can hook up diagnostic tools and pressure gauges, or pop the cover and make proper diagnosis.
Everything depends on the condition of the fluid. So take a sample on some bright white cardstock and then check our FAQ to see if that answers any of your questions.
If the fluid doesn't look too bad, then I would just do a complete dump and fill, and replace the filter. You can keep the old fluid in case it was holding the transmission together.
Does anybody on this forum have an AllData subscription to check what the DTC set logic is?
Mode 6 & DTC definitions and conditions are freely available on the net from GM
https://gsitlc.ext.gm.com/gmspo/mode6/index.html
Need to know the engine + trans type though.
I believe I found it ...
I couldn't find the exact DCT logic for the GM 6L45/50 nor for the GM 6L80/90 transmissions,
But on other transmissions used by GM, according to the internet, its "prognostic logic determines vehicle duty cycles based on shifts per mile, transmission revolutions, and hours accumulated. This information determines the proper oil change intervals"
In other words, according to a source online, on some transmissions it just means it's guessing that you need a fluid change.
Can't the dealer just look in the service manual for this code?
Usually it'd say if it's a prognostic "change your oil" or what they claim it is
So IMO, it's probably safe to change, the compromise of changing it partially might be a good idea.
Don't forget about the filter, replace if possible.
(just don't expect it to last much if it's first oil change is at double the recommended service interval of 80k-90k km)
Also note that it might shift roughly after the oil change and require the learning procedure to be performed.
Does anybody on this forum have an AllData subscription to check what the DTC set logic is?
If you have a competent transmission mechanic in your area, ask them.
But since you're using kilometers, I'd take their advise with a grain of salt - Ask them when's the last time they worked on one of these... if it's in Europe probably never or many years ago.
