Manufacturer Communications

Vehicles / Gmc / Sierra 3500 / 2020
Bulletin Number Vehicle Make Vehicle Model Model Year Summary
20NA195 GMC SIERRA 3500 2020 This technical bulletin provides a procedure to replace the NOx2 sensor if found the cause of the customers concern.<br />
PIE0583B GMC SIERRA 3500 2020 This engineering information (EI) is requesting information from technicians and to contact the engineers listed in regards to Transmission Performanc
20NA203 GMC SIERRA 3500 2020 This informational bulletin explains how the regen works for the DEF system and how it works at different levels.<br />
20NA105 GMC SIERRA 3500 2020 This technical bulletin provides repair information to correct a customer concern of 360 Camera Views go Blank with Tailgate Removed.<br />
PIT5755 GMC SIERRA 3500 2020
20NA035 GMC SIERRA 3500 2020 This technical bulletin provides repair information to correct a customer concern of hearing a wind whistle noise from front of vehicle while driving.
20NA096 GMC SIERRA 3500 2020 This informational bulletin provides information for dealers/technicians on Glow Plug Control Module Update.<br />
20NA043 GMC SIERRA 3500 2020 This informational bulletin advises the technician to not replace the TMAP sensor, clean it using air or harsh chemicals but allow time for the sensor
20NA036 GMC SIERRA 3500 2020 This informational bulletin provides information for dealers/technicians on Rear Camera Gridlines Incorrect, Misaligned, Offset, Incorrect Camera View
20NA020 GMC SIERRA 3500 2020 This technical bulletin provides a procedure to replace the front and rear brake pads if the brakes are squealing.<br />
20NA020 GMC SIERRA 3500 2020 This technical bulleti provides a procedure to replace the front and rear brake pads if the brakes are squealing.<br />
20NA192 GMC SIERRA 3500 2020 This technical bulletin provides a procedure to try multiple different adjustments based on the condition of Steering Dither/Shake or Quick Steering W
PIE0573 GMC SIERRA 3500 2020 This engineering information (EI) is requesting information from technicians to perform the inspection and verify that the rear axle dampener (TVA) is
N202306491 Messa GMC SIERRA 3500 2020 Service Update (Revised Population). The purpose of this service update is to provide the customer with a goodwill gift to offset customer inconvenien
N202306491 GMC SIERRA 3500 2020 Service Update. The purpose of this service update is to provide the customer with a goodwill gift to offset customer inconvenience, restore confidenc
PIE0560A GMC SIERRA 3500 2020 This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in reg
N192279900 GMC SIERRA 3500 2020 N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel
PIE0583 GMC SIERRA 3500 2020 This engineering information (EI) is requesting information from technicians to provided the engineers listed in regards to Early, Late, Harsh and/or
17NA374 GMC SIERRA 3500 2020 This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.<br />
20NA020 GMC SIERRA 3500 2020 This technical bulleti provides a procedure to replace the front and rear brake pads if the brakes are squealing.<br />
20NA006 GMC SIERRA 3500 2020 This informational bulletin explains there is another steering hose that can be used for cold weather drivers that experience a steering hose leak.<br
20NA006 GMC SIERRA 3500 2020 This informational bulletin explains there is another steering hose that can be used for cold weather drivers that experience a steering hose leak.<br
19NA216 GMC SIERRA 3500 2020 This technical bulletin provides the tech with a procedure to check the t-case for loose fasteners and to re-torque if the cause of the concern.<br />
N192267990 GMC SIERRA 3500 2020 N192259800 - Customer Satisfaction Program - Certain 2020 vehicles vehicles, equipped with the 6.6L diesel engine (RPO L5P), may have a condition in w
19NA232 GMC SIERRA 3500 2020 This informational bulletin provides tips for showing a way to confirm if its a mechanical engine issue or not.<br />
19NA231 GMC SIERRA 3500 2020 This informational bulletin informs the technician of a possible low A/C charge in a low milage vehicle from the factory.<br />
N192266750-02 GMC SIERRA 3500 2020 Service Update - On vehicles that are equipped with a 6.6L diesel engine, may have one or more of the following conditions exist: 1. The instrument p
N192286190 GMC SIERRA 3500 2020 Service Update - Certain vehicles may have a condition where the thermal cover may accelerate corrosion of the low pressure diesel hydrocarbon injecto
20NA022 GMC SIERRA 3500 2020 This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-to
20NA020 GMC SIERRA 3500 2020 This technical bulletin provides a procedure to replace the front and rear brake pads if the brakes are squealing.<br />
PIP5656D GMC SIERRA 3500 2020 This Preliminary Information communication advises the technician that the 6.6L Engine (RPO L8T) has been placed on Engine Exchange program and cranks
PIT5732 GMC SIERRA 3500 2020
19NA240 GMC SIERRA 3500 2020 This technical bulletin provides repair information to correct a customer concern of steering wheel oscillation, vibration, shake 50-80 mph.<br />
N192265570 GMC SIERRA 3500 2020 N192265570 - Service Update. Certain vehicles may have misalignment between the transmission output shaft and the transfer case input. Transfer case t
PIP5656 GMC SIERRA 3500 2020 This Preliminary Information communication advises the technician that the 6.6L Engine (RPO L8T) has been placed on Engine Exchange program. Dealer wi
PIP5655 GMC SIERRA 3500 2020
PIT5702 GMC SIERRA 3500 2020
19NA091 GMC SIERRA 3500 2020 This New Model Features Bulletin provides General Information and other Topics to help the Service Personnel become familiar with features specific to
18NA150 GMC SIERRA 3500 2020 This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.<br />
130232001F GMC SIERRA 3500 2020 This technical bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is
18NA098 GMC SIERRA 3500 2020 This informational bulletin provides information for the technicians on where to look on the Duramax engine for coolant leaks.<br />
17NA374 GMC SIERRA 3500 2020 This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.<br />
19NA074 GMC SIERRA 3500 2020 This informational bulletin provides information to clarify installation requirements when installing Accessory wheels on 2020 Chevrolet Silverado HD
17NA350 GMC SIERRA 3500 2020 This informational bulletin provides explanation of a normal condition of a loose fitting ball receiver in the gooseneck.<br />

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