NHTSA ID Number: 10222782 Manufacturer Communication Number: 20-NA-082 Summary This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards. Condition Some customers may comment that excessive DEF is being used. Some technicians may find no codes set or messages on the DIC. Information The current 2020 Silverado/Sierra … Read more
February 2, 2023 NHTSA CAMPAIGN NUMBER: 23V047000 Rear Fuel Tank Failure May Cause Engine Stall An engine stall increases the risk of a crash. NHTSA Campaign Number: 23V047 Manufacturer General Motors, LLC Components FUEL SYSTEM, DIESEL Potential Number of Units Affected 22,132 Summary General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra … Read more
NHTSA ID Number: 10222655 Manufacturer Communication Number: 18-NA-011 Summary Informational bulletin explaining how a plow may cause overheating and engine damage when traveling over 45 mph. Condition Some customers may comment that the MIL is illuminated Some technicians may find DTC P026A set on vehicles with a snow plow installed. Information Note: When a snow … Read more
NHTSA ID Number: 10222659 Manufacturer Communication Number: 19-NA-187 Summary This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause. Condition Some customers may comment on one or more of the following conditions: MIL illuminated Engine misfire Some technicians may find DTC P0300 set in the Engine Control Module (ECM). … Read more
NHTSA ID Number: 10226385 Manufacturer Communication Number: PIP5845A Summary This Preliminary information communicates to the dealer technician that if the vehicle’s engine coolant reservoir has transmission fluid in it or if Glycol it found in the transmission fluid the dealer should replace the Automatic Transmission Fluid Cooling Exchanger. The dealer should refer to bulletin 08-07-30-035 for the recommended components … Read more