Code reading P21DD Rdeductant Heater 'A" Current Too Low

[AK_ Maverick-X3]

Hi All,

First time posting and learning how to.

Received this error on my Truck. "P21DD Reductant Heater 'A" Current Too Low"

2016 Chevy 2500 Diesel 4x4 Silverado LTZ - Current miles are 52,097

I have lots of questions and do not want the dealership Song a& Dance.

1. Does this error have to do with the Def Tank Heater?
2. Warranty- What is the Standard Warranty on this truck, I bought it used?
3. Does the Warranty cover this under Emissions?
4. What is the Standard Emission Warranty?

 

Thank you in advance for reading this post,

 

Scott

 

[redwngr]

Diesel exhaust fluid is a 'Reductant'. (used in the process of reducing NOx emissions)

 

Powertrain warranty for dmax is 5 yr/100,000.

 

Emission is less -- but length seems to  depend on the component.

Some emissions items (and depending on model year) have been given 'enhanced' warranty.

 

I don't know it yours will be covered.

 

[AK_ Maverick-X3]

Thank you for the quick respond. I have it going to dealer for an appointment on Friday.

[SILVER SLED]

That will be covered under a special policy if nothing else.  The whole reservoir will be replaced.  

[avalonandl]

It should be covered under emissions warranty... I think

[AK_ Maverick-X3]

Thank you all for your post.