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Product Safety Recall
N182204190 Chassis Cab Truck Fuel Leak

Release Date:    September 2019                                                    Revision:    02

Revision Description: This bulletin has been revised in the Parts, Warranty Information, and Service Procedure sections. The correction statement has also been updated to capture these changes. Please discard all previous versions of N18220419.

Make	Model	Model Year		RPO	Description
		From	To
Chevrolet	Silverado 3500	2016	2018	N2N/L96	Dual Fuel Tanks / 6.0L Gas Engine
GMC	Sierra 3500

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management system.  This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs.   

Condition

General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 20162018 model year Chevrolet Silverado 3500 and GMC Sierra 3500 vehicles equipped with gas engines (L96) and dual fuel tanks (N2N).  In these vehicles, if the fuel-level sensor in the front tank becomes stuck in a low-level position, the rear tank may overfill the front tank and potentially cause it to expand.  In rare circumstances, the front fuel tank could expand and contact a moving drive shaft, which could create a hole in the front fuel tank and allow fuel to leak. If leaked fuel encounters a potential ignition source, a fire could occur.

Correction

Dealers will replace the rear-tank fuel-pump module with a pump that has a lower pressure limit, as well as updating the ECM calibration. Dealers will also inspect the front tank and replace if necessary.

Parts

Quantity	Part Name	Part No.
1 (as needed)	Front Fuel Tank	25901690
1 (as needed)	Front Fuel Tank Shield	25901685
1 (as needed	Fuel Level Sensor, Front (MY17-18)	84174276 ACDelco GM Original Equipment SK1489 (84174276) Fuel Level Sensor Kit with Sensor and Seal Designed with thick wiper contacts and wear pads that provide durability, especially with today’s ethanol fuels Design helps eliminate complications due to worn fingers on the sensor wiper arm, sulfur contamination, and failures of wire wound sensors and/or lead sensor kits GM-recommended replacement part for your GM vehicle’s original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function $75.03 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API
1 (as needed)	Fuel Level Sensor, Front (MY16)	13585452 GM Genuine Parts SK1415 (13585452) Fuel Level Sensor Kit with Sensor and Seal Measures fuel level changes displayed on fuel gauge Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle GM regularly updates production and service part designs to integrate new materials and technologies $92.14 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API
1	Module Kit – Fuel Tank Fuel Pump (rear – w/o level sensor)	84376555 GM Module Kit - 84376555 Genuine General Motors part that fits your specific vehicle Module Kit Part Number: 84376555 Manufactured to meet specifications for fit, form, and function $305.34 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
1	Fuel Level Sensor (rear; for use w/ part number 84376555)	13585451 GM Genuine Parts SK1414 (13585451) Fuel Level Sensor Kit with Sensor and Seal Measures fuel level changes displayed on fuel gauge Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE) GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle GM regularly updates production and service part designs to integrate new materials and technologies $58.65 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API

Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which parts to order.

Reminder: Parts may be removed from Retail Inventory Management (RIM).  Dealers should review the affected parts to confirm RIM managed status.  Parts may have quantity limiters in effect.

Warranty Information

Note: To avoid having to “H” route the customer reimbursement / floor plan transaction for approval, it must be submitted prior to the repair transaction.

*      Labor time for fuel tank replacement includes drain and fill fuel.

** To avoid warranty transaction rejections, carefully read and follow the instructions below:

• The SPS Warranty Claim Code must be accurately entered in the “SPS Warranty Claim Code” field of the transaction.
• When more than one Warranty Claim Code is generated for a programming event, it is required to document all Warranty Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the “SPS Warranty Claim Code” field of the transaction, otherwise the transaction will reject.  It is best practice to enter the FINAL code provided by SPS.

Warranty Claim Code Information Retrieval

If the SPS Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS system as follows:

1. Open TIS on the computer used to program the vehicle.
2. Select and start SPS.
3. Select Settings.
4. Select the Warranty Claim Code tab.

The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events.  If the code is retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code field.

***  For USA and Canada: Submit the dollar amount reimbursed to the customer in Net/Reimbursement. Submit $20.00 administrative allowance in Net/Admin Allowance.

      For Export: Submit the dollar amount reimbursed to the customer in Net/Reimbursement.

****  Submit $10.00 administrative allowance in Net/Admin Allowance

Floor Plan Reimbursement – NEW INVENTORY ONLY

***** USA & Canada Only – For vehicles eligible for floor plan reimbursement, the amount should be submitted in Net

Item/Miscellaneous.  This amount should represent the product of the vehicle’s average daily interest rate (see table below) multiplied by the actual number of days the vehicle was in dealer inventory and not available for sale.  This reimbursement is limited to the number of days from the date of the stop delivery message (February 7, 2019) to the date the repair is completed, and the vehicle is ready for sale (not to exceed 164 days):

Vehicle	Reimbursement Amount
	USA	Canada
2016 Chevrolet Silverado 3500	$7.64	N/A
2016 GMC Sierra 3500	$7.46	N/A
2017 Chevrolet Silverado 3500	$8.34	N/A
2017 GMC Sierra 3500	$9.28	N/A
2018 Chevrolet Silverado 3500	$9.99	N/A
2018 GMC Sierra 3500	$11.03	N/A

Working Capital Assistance Program (WCAP) Reimbursement – USED INVENTORY ONLY

Note: US Only – To avoid having to “H” route the WCAP transaction for approval, it must be submitted prior to the repair transaction.

Important: The WCAP ZSET transaction labor code, 9800022, provided in the dealer message sent on (February 21, 2019), must have been submitted prior to the submittal of the ZFAT transaction labor code or the claim will reject.

****** US Dealers Only – For vehicles eligible under the Working Capital Assistance Program, the amount should be submitted in Net Item/Miscellaneous. This amount has been calculated to a daily value for the days that the vehicle was in used dealer inventory and not available for sale.  This reimbursement is limited to the number of days from the date of the stop sale/stop delivery order (February 7, 2019) to the date the recall bulletin was released (not to exceed 164 days).

 Canada Dealers Only – For Canada, please continue to follow the process outlined in the Used Virtual Coupon Program Dealer message published on February 21, 2019. (see GCCA-5-1349).

Vehicle	Working Capital Assistance Reimbursement Amount
	USA
2016 Chevrolet Silverado 3500	$15.83
2017 Chevrolet Silverado 3500	$17.50
2018 Chevrolet Silverado 3500	$19.00
2016 GMC Sierra 3500	$16.83
2017 GMC Sierra 3500	$17.46
2018 GMC Sierra 3500	$19.42

Service Procedure

1. Lift the vehicle. Refer to Lifting and Jacking the Vehicle.

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2. Inspect the front fuel tank shield for contact with the propeller shaft universal joint, as shown above.
   • If there is evidence of the propeller shaft universal joint contacting the shield, proceed to the next step
   • If there has not been any contact, proceed directly to step 7.
3. Remove the fuel tank shield. Refer to Fuel Tank Shield Replacement in SI.
4. Inspect the front fuel tank for evidence of the propeller shaft universal joint contact.
   • If there is NO evidence of the propeller shaft universal joint contacting the front fuel tank, proceed to the next step.
   • If there is evidence of the propeller shaft universal joint contacting the front fuel tank, replace the front fuel tank. Refer to Fuel Tank Replacement (Cab/Chassis – Front).
5. Replace the front fuel tank fuel level sensor. Refer to Fuel Level Sensor Replacement (25/35 Series).
6. Replace the fuel tank shield. Refer to Fuel Tank Shield Replacement in SI.
7. Replace the rear fuel tank fuel pump module. Refer to Fuel Tank Replacement (Cab/Chassis – Rear) in SI.
8. Reprogram the Engine Control Module. Refer to K20 Engine Control Module: Programming and Setup in SI.

Note: Carefully read and follow the instructions below.

• Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur.
• Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to gmdesolutions.com for further information.   If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
• Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.
• Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.

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Note: If the Same Calibration/Software Warning is noted on the SPS Summary screen, record the warranty claim code (WCC) and select OK and follow screen instructions. After a successful programming event, the WCC is located in the Service Programming System dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin.

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8. Record SPS Warranty Claim Code on job card for warranty transaction submission.

Dealer Responsibility – For USA & Export (USA States, Territories, and Possessions)

It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied.

The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type must be adequately repaired within a reasonable time after the customer has tendered it for repair.  A failure to repair within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time.  If the condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation.  To avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment with each customer and to repair their vehicle as soon as possible.  In the recall notification letters, customers are told how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable time.

Dealer Responsibility – All

All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this recall must be held and inspected/repaired per the service procedure of this bulletin before customers take possession of these vehicles.  Involved vehicles must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration, or any other purpose.

All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin.  Upon submitting an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified for sale within the CPOIS system, or once again be used in the CTP program.

Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer.  Arrangements are to be made to make the required correction according to the instructions contained in this bulletin.  A copy of the customer letter is provided in this bulletin for your use in contacting customers.  Recall follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your dealership for service in the future, you must take the steps necessary to be sure the recall correction has been made before selling or releasing the vehicle.

Dealer Reports

For dealers with involved vehicles, a listing with involved vehicles has been prepared and will be provided to U.S. and

Canadian dealers through the GM GlobalConnect Recall Reports or sent directly to export dealers.  The listing may contain customer names and addresses obtained from Motor Vehicle Registration Records.  The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this recall is a violation of law in several states/provinces/countries.  Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this recall.

Courtesy Transportation – For USA & Canada

Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the warranty coverage period. See General Motors Service Policies and Procedures Manual, Sections 1.4 and 6.1.10, for courtesy transportation program details.

Customer Notification

USA & Canada – General Motors will notify customers of this recall on their vehicle (see copy of customer letter included with this bulletin).

Export – Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act.  For owners outside these areas, dealers should notify customers using the attached sample letter.

Customer Reimbursement

Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to be submitted to the dealer prior to or by August 31, 2020.  See General Motors Service Policies and Procedures Manual, Section 6.1.11 – Product Field Action Customer Reimbursement Procedure (USA & Canada) or local Policies and Procedures, for details.

IMPORTANT SAFETY RECALL

July 2019

This notice applies to your vehicle, VIN: _____________________________________ Dear General Motors Customer:

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.

General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2016-2018 model year Chevrolet Silverado 3500 or GMC Sierra 3500 vehicles equipped with gas engines and dual fuel tanks.  As a result, GM is conducting a safety recall.  We apologize for this inconvenience.  However, we are concerned about your safety and continued satisfaction with our products.

Division	Number	Text Telephones (TTY)
Chevrolet	1-800-630-2438	1-800-833-2438
GMC	1-866-996-9463	1-800-462-8583
Puerto Rico – English	1-800-496-9992
Puerto Rico – Español	1-800-496-9993
Virgin Islands	1-800-496-9994

If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to https://www.safercar.gov.  The National Highway Traffic Safety Administration Campaign ID Number for this recall is 19V088.

Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days.

Maryann L. Combs

Vice President

Global Vehicle Safety

Enclosu

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