Special Coverage – Diesel Emission Fluid Tank Reservoir – 2013-2015 Chevrolet & GMC

NHTSA ID Number: 10135147

Manufacturer Communication Number: 29400-01

Summary

29400 01 – Special Coverage. On certain vehicles that are equipped with a diesel engine (RPO LML/LGH/LUZ), a malfunction-indicator light (MIL) may illuminate due to an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir or increased DEF tank-heater resistance. Dealers are to replace the DEF tank reservoir. The repairs will be made at no charge to the customer.

 


Condition

On certain 2013-2015 model year ChevroleteBay logo Express, ChevroleteBay logo Silverado HD, GMC Savana, GMC Sierra HD, and 2014-2015 model year ChevroleteBay logo Cruze vehicles that are equipped with a diesel engine (RPO LML/LGH/LUZ), a malfunction-indicator light (MIL) may illuminate due to an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir or increased DEF tank heater resistance.

 

Special Coverage Adjustment

This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 17, 2016, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 17, 2016, must be submitted to the Service Contract provider.

 

Correction

Dealers are to replace the DEF tank reservoir. The repairs will be made at no charge to the customer.

 

Parts

QuantityPart NamePart No.
1Emission Reduction Fluid Tank Reservoir Kit23379348

Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API


 

1Emission Reduction Fluid Tank Reservoir Kit23379347eBay logo
1Emission Reduction Fluid Tank Reservoir Kit23377881eBay logo
2 (All Models)Diesel Exhaust Fluid (US)19286292

Last update on 2026-06-14 / Affiliate links / Images from Amazon Product Advertising API


 

Diesel Exhaust Fluid (CA)88865752
1 (Express / Savana, Silverado / Sierra HD)Diesel Exhaust Fluid (US)19286291
Sale
ACDelco GM Original Equipment 10-4022 Diesel Exhaust Emissions Reduction (DEF) Fluid - 1 gal, white
  • Meets GM Original Equipment specifications to be approved for use in GM vehicles as well as in non-GM diesel vehicles that have an SCR (Selective Catalytic Reduction) system to meet regulated NOx emissions (Based on EPA certification testing. Your actual emissions will vary based on several factors including temperature, terrain, and driving conditions).
  • High quality formula is made from high purity urea and deionized water.
  • Meets API regulations and ISO 22241 standard for purity and concentration
  • Nozzles sold separately

Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API


 

Diesel Exhaust Fluid (CA)88865751

 

Service Procedure

Verify that the emission reduction fluid tank reservoir requires replacement. Refer to the appropriate diagnostic information in SI.

If the emission reduction fluid tank reservoir does NOT require replacement, no further action is required. Inform the customer that any additional diagnosis and repairs are not covered under this special coverage.

If the emission reduction fluid tank reservoir requires replacement, replace the emission reduction fluid tank reservoir. Refer to Emission Reduction Fluid Tank Reservoir Replacement in SI.

 


14 Affected Products

Vehicles

MAKEMODELYEAR
CHEVROLETeBay logoCRUZE2014-2015
CHEVROLETeBay logoEXPRESS2013-2015
CHEVROLETeBay logoSILVERADO 15002014
CHEVROLETeBay logoSILVERADO 25002015
CHEVROLETeBay logoSILVERADO 35002013
GMCSAVANA2013-2015
GMCSIERRA DENALI2013-2015

 


1 Associated Document

Manufacturer Communications

Special Coverage Adjustment
29400

Release Date: November 2017
Revision: 01

https://www.nhtsa.gov/recalls?nhtsaId=10135147

MC-10135147-9999.pdf 266.787KB

 


NHTSA ID Number: 10126332

Manufacturer Communication Number: GCUS-9-3140

Summary

29400 Special Coverage. Certain vehicles that are equipped with a diesel engine (RPO LML/LGH/LUZ), a malfunction-indicator light (MIL) may illuminate due to an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir or increased DEF tank-heater resistance. Dealers are to replace the DEF tank reservoir. The repairs will be made at no charge to the customer.

 

1 Associated Document

Manufacturer Communications

Special Coverage Adjustment
29400

Release Date: November 2016
Revision: 00

https://www.nhtsa.gov/recalls?nhtsaId=10126332

MC-10126332-9999.pdf 266.938KB

 


 

Bestseller No. 1
Blue Def DEF002-2PK Diesel Exhaust Fluid, 2.5 Gallon, 2 Pack
  • One gallon of is used approximately every 300 miles
  • A truck with a 20 gallon DEF tank can go up to 6000 miles between fill-ups
  • When used in an SCR system will reduce the levels of NOx emissions of those engines
Bestseller No. 2
Blue Def DEF002-4PK Diesel Exhaust Fluid, 2.5 Gallon, 4 Pack
  • One gallon of is used approximately every 300 miles
  • A truck with a 20 gallon DEF tank can go up to 6000 miles between fill-ups
  • When used in an SCR system will reduce the levels of NOx emissions of those engines
  • Fit type: Universal
Bestseller No. 3
SaleBestseller No. 4
ACDelco GM Original Equipment 10-4022 Diesel Exhaust Emissions Reduction (DEF) Fluid - 1 gal, white
  • Meets GM Original Equipment specifications to be approved for use in GM vehicles as well as in non-GM diesel vehicles that have an SCR (Selective Catalytic Reduction) system to meet regulated NOx emissions (Based on EPA certification testing. Your actual emissions will vary based on several factors including temperature, terrain, and driving conditions).
  • High quality formula is made from high purity urea and deionized water.
  • Meets API regulations and ISO 22241 standard for purity and concentration
  • Nozzles sold separately
Bestseller No. 5
Ford Genuine Fluid PM-27-JUG Diesel Exhaust Fluid - 2.5 Gallon
  • Required for diesel vehicles equipped with a selective catalytic reduction (SCR) emissions after treatment system
  • Reduces NOx emissions in diesel vehicles with an SCR catalyst
  • AUS32 fluid meeting all the requirements and purity standards of ISO 22241 and DIN70071
  • Nozzle specifically designed to fit the DEF filler opening of 2011MY and forward FordeBay logo diesel vehicles (as well as many competitive vehicles) and prevent over filling the DEF tank
  • Use only dispensing systems that are compatible with DEF

Last update on 2026-05-22 / Affiliate links / Images from Amazon Product Advertising API


 

This product presentation was made with AAWP plugin.

 


15 thoughts on “Special Coverage – Diesel Emission Fluid Tank Reservoir – 2013-2015 Chevrolet & GMC”

  1. Just dropped my 2016 2500HD in for this issue. 42,863 miles. Should this be covered under warranty? If so which warranty?

    Reply
  2. So this Special Coverage Warranty applies to 2013-2015 Duramaxes but not 2016 even though it’s the same exact defect, same part and same procedure to repair. This is so absurd. I escalated it with Chevy Customer Assistance and it got shot down. Now I’m writing to Chevy in Detroit.

    Bad bad bad. I bought two brand new Duramaxes, one in 2006 and the other in 2016. If I don’t get some concession, they will be my last GM vehicles.

    Reply
  3. I just turned my car in to a Chevy dealership because of a DEF poor quality. They said it was a sensor issue and the warranty was only 50k miles. So I’m getting charged for just the sensor. Does the above letter apply to my issue?

    Reply
  4. My 2015 duramax had this issue and parts where replaced. Now it’s having the same issue as before I’m a die hard Chevy person but I shouldn’t have to put my hard earned money into this issue seeing it was repaired and is happening again

    Reply
  5. Question: 2014 ChevCruze Diesel DTC P20B9 & P21DD related issue to heater 1 in DEF reservoir. Does the whole DEF tank need replacement? Could just the Heater assembly/part# 23377881 be replaced? Dealership requesting part# 23467368.
    Product: 22787284. I have never received any recall notices regarding this matter. I am @ 121333 miles. Now I have to pay for repair???

    Reply
  6. I had the code on my 2014 Cruze diesel p21dd in June when I brought it to the dealer for the recall. Also had them replace the timing belt being the car was over 100000 miles. Why wasn’t the day heater replaced if they knew about this since Dec. Of 2016. Now I have 123000 miles on the car and don’t qualify.

    Reply
  7. On this warranty issues are they supposed to replace the reservoir tank. It reads that they did on my ticket but the tank has not been changed out on special policy 29 400

    Reply
  8. Pingback: DEF Reservoir: Definitive Explanation and Part Numbers - Page 2

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