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- - Got the P21DD error code yesterday (https://67-72chevytrucks.com/vboard/showthread.php?t=798553)

dennislbrooks

12-23-2019 08:02 AM

Got the P21DD error code yesterday

2015 2500HD Duramax --- 32000 miles

Emissions, probably something to do with DEF stuff. I have a 5 year extended warranty but being emiisions I hope I have no cost -- my $250 deductible.

Goes to dealer tomorrow.

Anyone else face a P21DD?

Palf70Step

12-23-2019 08:36 AM

Re: Got the P21DD error code yesterday

From quick Interweb search it appears to be an issue out there quite a bit. From sound of it, you probably will be covered. Good luck with it.

dennislbrooks

12-31-2019 09:55 PM

Re: Got the P21DD error code yesterday

My factory 5 yr 100K mile engine warranty covered the repair. They replaced the DEF tank and components.

Palf70Step

01-01-2020 08:28 AM

Re: Got the P21DD error code yesterday

Good to hear. Glad you are back to normal.

mikelom

01-17-2020 01:37 AM

Re: Got the P21DD error code yesterday

Had the same issue and I took my truck to the dealer for warranty coverage.

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