NHTSA ID Number: 10187391 Manufacturer Communication Number: 20NA030 Summary This service bulletin provides a procedure to correct a customer concern of Rear Air Suspension Inoperative. 1 Affected Product Vehicle MAKE MODEL YEAR CHEVROLET SILVERADO 4500HD 2019 Parts Information Causal Part Description Part Number Qty X SPRING, RR AIR 19407642 2 N/A ABSORBER, RR … Read more
NHTSA ID Number: 10183194 Manufacturer Communication Number: 20NA177 Summary This technical bulletin provides repair information to correct a customer concern of the loss of air pressure causing rear air suspension bags not to inflate. Parts Information Causal Part Description Part Number Qty X VALVE ASM,RR AIR SUSP LVLG 19407966 1 SEOCONTENT-START Copyright 2020 … Read more
NHTSA ID Number: 10222660 Manufacturer Communication Number: 20-NA-090 Summary This informational bulletin provides a way for the technician to identify if the ECM has been modified. General Motors Position on Aftermarket Power-Up Devices General Motors does not support or endorse the use of devices or modifications that when installed, increase the engine horsepower and torque. This … Read more
NHTSA ID Number: 10205057 Manufacturer Communication Number: 20NA110 Summary This service bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump. 61 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET 4500HD 2021 CHEVROLET 5500HD … Read more
NHTSA ID Number: 10178273 Manufacturer Communication Number: 20NA116 Summary This informational bulletin provides information on Available Top Speed Changes and how to reach them. 6 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET 4500HD 2019-2020 CHEVROLET 5500HD 2019-2020 CHEVROLET SILVERADO 4500HD 2019-2020 SEOCONTENT-START Service Bulletin Bulletin No.: 20-NA-116 Date: June, 2020 INFORMATION Subject: Available … Read more
