2017-2020 Chevrolet LCF 4500HD, 4500XD, 5500HD, & 5500XD Safety Recall N212333830 Rear Axle U-Bolt Nuts

Chevrolet 4500HD

March 19, 2021 NHTSA CAMPAIGN NUMBER: 21V194000 Rear Axle U-Bolt Not Properly Tightened The misalignment may cause the propeller shaft to separate, causing a loss of power to the rear wheels and a stall, increasing the risk of a crash.   NHTSA Campaign Number: 21V194 Manufacturer Isuzu Technical Center of America, Inc. Components SUSPENSION Potential Number of Units Affected 258 … Read more

Loss of Air Pressure Causing Rear Air Suspension Bags Not to Inflate – 2019-2020 Chevrolet Silverado 4500HD, 5500HD & 6500HD

2019 Chevrolet Silverado 4500-6500

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

Information on Diesel Exhaust Fluid Pump is Unable to Build Pressure After Replacement – 2017-2022 Cadillac Chevrolet GMC

2020 Chevrolet Silverado

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

Available Top Speed Changes – 2019-2020 Chevrolet Silverado 4500HD/5500HD/6500HD

2019 Chevrolet Silverado 4500-6500

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

FMVSS Noncompliance Recall N202305070 Warning Lamp May Not Indicate ABS Malfunction – US Only – 2019-2020 Chevrolet 4500HD, 5500HD, & 6500HD Medium Duty Trucks

2019 Chevrolet Silverado 4500-6500

May 29, 2020 NHTSA CAMPAIGN NUMBER: 20V319000 ABS Malfunction Indicator May Not Light/FMVSS 108 If a driver is unaware that the ABS system is malfunctioning, there may be an increased risk of a crash.   NHTSA Campaign Number: 20V319 Manufacturer General Motors LLC Components SERVICE BRAKES, HYDRAULIC, ELECTRICAL SYSTEM Potential Number of Units Affected 12,200   Summary General Motors is … Read more