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2020 GMC Canyon advice

Posted on 7/27/26 at 4:27 pm
Posted by xBirdx
Member since Sep 2018
2749 posts
Posted on 7/27/26 at 4:27 pm
Looking at purchasing a 2020 canyon V6 with 137,000 miles. $15 K.

One owner, one minor accident per the Carfax. Looks like owner did their own service, no records.

What do you think?

I’ve heard of transmission issues. If bought, should I get serviced/flushed/etc.?

Thanks
This post was edited on 7/27/26 at 9:49 pm
Posted by AaronDeTiger
baton rouge
Member since Jun 2014
2525 posts
Posted on 7/27/26 at 6:45 pm to
I had to look up what the Bass model entailed.
Posted by America250
Member since Jun 2026
151 posts
Posted on 7/30/26 at 5:42 am to
Tacoma or Frontier!
Posted by meeple
Carcassonne
Member since May 2011
11461 posts
Posted on 7/30/26 at 6:05 am to
quote:

transmission issues. If bought, should I get serviced/flushed/etc

Whatever vehicle you own do not do this. Just drain it and refill x3 times, driving around the block in between each. The power flushing they do just stirs up particulates that will do more harm than good.
Posted by highpockets
Lafayette
Member since Feb 2015
2112 posts
Posted on 7/30/26 at 7:11 am to
that year is the 8 speed right? I think those are the ones needing torque convertor replacements.

I have a 2016 with 115K miles, 6 speed. yeah the tranny sux,
Posted by BlackPot
Member since Oct 2016
2734 posts
Posted on 7/30/26 at 11:03 am to
My buddy has a covid silverado (2020). He's had some small issues here and there. I don't think anything engine or trans issues, but other little small things.
Posted by Spankum
The Sip
Member since Jan 2007
63270 posts
Posted on 7/31/26 at 5:27 pm to
Businesses generally will not service a transmission with that many miles on it…..most people only bring in transmissions when they begin to have problems.

But to answer your question, I would absolutely change fluid and filter. Get a shade tree to do it or do it yourself.
Posted by Chad504boy
4 posts
Member since Feb 2005
179855 posts
Posted on 7/31/26 at 11:26 pm to
quote:

I’ve heard of transmission issues. If bought, should I get serviced/flushed/etc.?


Stay away
Posted by tigahbruh
Louisiana
Member since Jun 2014
2864 posts
Posted on 8/15/26 at 10:14 pm to
Own a 2018 Canyon. Transmission bad. I took the gamble and got it rebuilt. About $3500 repair vs a $7000 replacement. It’s been great otherwise, but wish I knew about the transmission issues bf I bought it. Would’ve gone in another direction.
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