Service bulletin N222359340
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10210153 |
| Published by NHTSA | 2022-04-08 |
| Manufacturer's number | N222359340 |
| Manufacturer's date | 2022-04-07 |
| NHTSA component | ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM |
NHTSA's summary
Product Emission Recall - General Motors has decided to conduct a Voluntary Emissions Recall on certain 2022 Chevrolet Colorado and GMC Canyon vehicles with a 2.8L diesel engine. In cold ambient temperatures when Diesel Emissions Fluid (DEF) in the DEF tank is frozen, the DEF tank pump may be activated before DEF has been sufficiently thawed by the heater. If this condition occurs, the control system may detect no DEF flow through the pump, set a Diagnostic Trouble Code (DTC), disable DEF dosing for the remainder of the drive cycle and alert the driver of an impending reduction in maximum vehicle speed. Dealers are to reprogram the ECM.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Engine, Engine control module, Software
| CHEVROLET COLORADO | 2022 |
|---|---|
| GMC CANYON | 2022 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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