2015 GMC Terrain won't shut off P1682

[@fgonzalez1994]

Thanks for posting. I just had this happen this morning. I went through about 45 min of heave rain last night. Here is a post on what some have commented in regards to water getting the fuse box behind the glove box. kzbin.info/www/bejne/nZvYlGmkl5mbr9E

[@RANS87IROCZ]

Thanks also for comment and added link to your experience to help out others

[@fgonzalez1994]

Came back to add this in hope it will help otheres. Also located in the same area is the air cabin filter. Mine was very dirty. In a high humidity situation, this could cause condensation in which that moisture can be blown into the fuse box getting it wet. I also changed the air cabin filter and have not had the same issue since.

[@fgonzalez1994]

Came back to add this in hope it will help otheres. Also located in the same area is the air cabin filter. Mine was very dirty. In a high humidity situation, this could cause condensation in which that moisture can be blown into the fuse box getting it wet. I also changed the air cabin filter and have not had the same issue since.

[@ernestorojas9721]

What was ur fix to not shutting off

[@diannalee9222]

My 2015 terrain recently started doing this problem, when you turn the key off the engine chuckles and turns off with a slight shaking within a couple of seconds. Taking it to a shop is expensive so I'm doing my own diagnostic, engine light is on too.

[@RANS87IROCZ]

It could be the battery or alternator? I guess the computer on these while running can detect low voltage from battery system? If it does? It trips a code for such and it prevents the vehicle from shutting off because it believes it will not have sufficient voltage to restart? Not 100% on it? Because I never followed up on this issue because they claimed a new battery solved it all

[@RANS87IROCZ]

And I really miss the days of getting a solid used battery for 20 bucks or a new one at 60 bucks, dang near 120 too 200 plus now for darn automotive battery! Same with alternators on GM vehicle! They was always fair priced till recent models

[@mac7949]

Same here, changed to new battery and everything’s working fine.

[@RANS87IROCZ]

That's awesome to hear! Maybe dealership didn't lie

[@RANS87IROCZ]

Low voltage from the battery going bad was the problem they said dealership has said, new battery and everything was back to normal

[@mariacarrera1948]

RANS87IROCZ my car is 2015 GMC Acadia and it just started to do that!

[@RANS87IROCZ]

@@mariacarrera1948 pretty sure might just need new battery let me know if it fixes yours to, thanks for comment

[@michealreed9792]

My 2017 GMC Acadia is doing this same thing.

[@ramonsanchezjr.3904]

I have 2008 Buick Enclave and it started doing the sams thing. We replaced fuse box under glove box, still did it . Replaced ignition switch, did it once but came out with code P1682. Going to electrical mechanic again to see what is going on.

[@RANS87IROCZ]

@@ramonsanchezjr.3904 Yep the same code this one had and only way to shut it off was pulling the relay out, which set it into limp mode next time it was started unless code was cleared. Was so odd to me and I just don't trust the dealership them telling them they installed new battery was the issue I just don't believe

[@rachelheckathorn7428]

Did you ever find out what the problem was?

[@RANS87IROCZ]

Well the dealership said it was bad battery believe it or not and reason it don't shut off is to prevent you from getting stuck from shutting it off

[@RANS87IROCZ]

Their reason so not 100 on that but what they told my friend

[@tonygraham6722]

Fuse box getting wet from the sun roof

[@ItsTheFry]

#MechanicLife

[@raul_f_1234]

My trans am doing same thing takes a while to shut off by it self

[@shbhu270]

My 2013 Buick enclave have same problem p1682 in 100000 mile. Wonder why there is no recalls. My car shuts off at the highway. Someone will die soon than they will realize

[@shbhu270]

Me too it happened after changing the battery

[@RANS87IROCZ]

You sure it's not fuel pump? This here the issues was it wouldn't shut off until a relay was removed, if yours is stalling during driving and no check engine lights I suspect fuel pump going bad, but still a chance it could be ignition related, did this stall start to happen immediately after new battery install?

[@willkhoury6293]

Have you figured it you yet, my buddy has same issue trying to figure it out, gonna try cam shaft sensor.

[@michealreed9792]

I have a 2017 GMC Acadia that is doing the same thing. I’m hoping mine would only be a battery problem also.

[@RANS87IROCZ]

Was it? I really think they lied to them? I heard they have a recall now on the ignition

[@michealreed9792]

RANS87IROCZ I replaced my ignition switch and the problem went away.

[@Redreefmedia]

@@michealreed9792 Did it stay gone? 2018 Acadia doing the same thing

[@michealreed9792]

Red Reef Media no the problem did not go away I ended up pulling the fuse box that’s located just above the glove compartment. Acadias Traverse and Enclaves have issues with water leaks under the dash. The leak is coming from a place on the firewall in my case. My fuse box had a lot of corrosion inside from the leak dripping onto the fuse box. After taking the fuse box out and apart I cleaned it very well and dried it out since then it’s been working fine but you have to fix the leak also or the problem will eventually comeback.

[@ChaseChild]

Micheal Reed Is it still working well? Just had the same issue with my 2012 Traverse. We did just drive through some rain. I took it to the shop and they said it was the ignition switch, but I’m convinced. I didn’t get a chance to check the fuse box before my wife took it to the shop. I’ve also been having something weird where my radio doesn’t change lighting when it is bright/dark. Like when I pull into the garage and the headlights and the dash lights auto adjust. I’m wondering if that is because of the same fuse box issue.

[@jaydenjohnson4426]

My car doing the same thing smh 🤦🏽‍♀️

[@jaydenjohnson4426]

Oh no I unhook my battery smh 🤦🏽‍♀️