18NA058
Service Bulletin Details
Public Details for: 18NA058
This bulletin provides k115 reductant control module reprogramming information to correct the def warning level message in the dic that will not update after filling the def tank.
- 2018 -
Models from 2018
2018 CHEVROLET CRUZE |
File in Section: Bulletin No.: Service Bulletin Date: 18-NA-058 February, 2018 TECHNICAL Subject: Diesel Exhaust Fluid Warning Level Message in DIC Will Not Update After Filling DEF Tank Brand: Model Chevrolet Cruze (Gen II - VIN B) (Hatchback Only) Model Year: VIN: from to from to 2018 2018 — — Engine: Transmission: 1.6L — RPO LH7 Automatic Transmission 9T50 — RPO M3D Involved Region or Country United States, Canada and Mexico. Condition Some customers may comment that the Diesel Exhaust Fluid Warning Level message in the Driver Information Center will not update after filling the DEF Tank. Cause A software anomaly in the K115 Reductant Control Module may cause the DEF Level update to not occur after filling the DEF tank. Correction If you encounter a vehicle with the above condition, reprogram the K115 Reductant Control Module with the latest available software. Service Procedure Warning: Diesel Exhaust Fluid (DEF) is corrosive. Do not allow it to come in contact with your skin, eyes, or the finished surfaces of the vehicle. If exposed, it may cause skin and eye irritation. Wear skin and eye protection when handling. Inhalation may cause irritation to the upper respiratory tract. Store in a cool, well-ventilated area. For more safety and storage information, see the label of the Diesel Exhaust Fluid container. Notice: • The capacity of the Cruze Hatchback DEF tank is 3.3 gal (12.5 L). To prevent damage to the system, DO NOT overfill the DEF tank. When fluid reaches the top of the fill pipe, stop filling. • Whenever adding DEF to an empty or a very low tank, always add at least 2 gal (7.6 L) of fluid to release the vehicle from speed limitation. • To avoid vehicle speed limitations, the DEF tank should be refilled at the first opportunity after a DEF Warning Level message is displayed. • If DEF is added under freezing conditions, additional time may be required to remove speed limitations and it may require less fluid to fill the DEF tank due to expansion. If the DEF Copyright 2018 General Motors LLC. All Rights Reserved. tank is refilled at temperatures colder than 12 ° F (−11 °C) , the refilling event may not be detected by the system. • A full DEF tank will last for approximately several thousand kilometers, depending on vehicle usage. As the DEF level drops, “various” DEF Warning Level messages will automatically be displayed in the DIC. The Diesel Exhaust Fluid level status is available on the DIC under the Vehicle Information menu. 1. Verify that the DEF tank is full. 2. Ignition ON. 3. If the DEF tank is full or near full and the DEF Warning Level message will not clear, then Go to Step 4. Important: Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install the EL-49642 SPS Programming Support Tool (GM Dealer Equipment Item #PSC-550) to maintain system voltage. 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. 4. Reprogram the K115 Reductant Control Module with the latest available software. Refer to K115 Reductant Control Module: Programming and Setup in SI. If not prompted by SPS during the reprogramming event, it may be necessary to perform a Reductant Fluid Tank Level reset using GDS2. Page 2 February, 2018 Bulletin No.: 18-NA-058 Parts Information No parts are required for this repair. Warranty Information For vehicles repaired under the Emission coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time 4086078* K115 Reductant Control Module: Programming and Setup 0.3 hr *This is a unique Labor Operation for Bulletin use only. Version Information Version 1 Modified Released February 22, 2018 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION