Service bulletins for the 2020 Chevrolet Express
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.
716 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 18NA099 | 2021-05-03. Service bulletin. EQUIPMENT. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
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| 16NA109 | 2021-05-03. Service bulletin. STEERING. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. |
| PIP5784 | 2021-04-19. Service bulletin. STRUCTURE. This Preliminary information communicates to the dealer technician to inspect for a missing 1-2-7-8-R clutch fluid passage seal or incorrect 1-2-7-8-R clutch fluid passage seal being install for a no movement concern after valve body replacement on the 8L45 or 8L90 transmissions. |
| PIE0591A | 2021-03-08. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards a front door that can not be opened from the inside or outside. |
| 150089004C | 2021-03-08. Service bulletin. SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. |
| 21NA026 | 2021-03-08. Service bulletin. EQUIPMENT; STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen. |
| 20NA142 | 2021-03-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving. |
| 20NA110 | 2021-03-01. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump. |
| 19NA037 | 2021-03-01. Service bulletin. SERVICE BRAKES; STEERING; ENGINE. This technical bulletin provides repair information to correct a customer concern of no start, hard start with belt squeal, belt break, loss of power steering and/or power brake assist. |
| 18NA285 | 2021-03-01. Service bulletin. EQUIPMENT; FUEL SYSTEM, OTHER:KINETIC:CLUTCH. This informational bulletin advises the tech of a possible normal condition when the vehicle creeps forward during start up conditions when the clutch packs are full of residual oil. |
| 18NA073 | 2021-03-01. Service bulletin. ENGINE. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. |
| 090604026S | 2021-03-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; EQUIPMENT. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 040089015V | 2021-03-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only). |
| 010601011L | 2021-03-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 20NA159 | 2021-02-22. Service bulletin. TIRES. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only). |
| 18NA306 | 2021-02-22. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| 16NA019 | 2021-02-22. Service bulletin. POWER TRAIN. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. |
| 090604026S | 2021-02-01. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 040089015V | 2021-02-01. Service bulletin. EQUIPMENT. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only). |
| 010601011L | 2021-02-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 20NA159 | 2021-02-01. Service bulletin. TIRES. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only). |
| 18NA306 | 2021-02-01. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| 16NA019 | 2021-02-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares. |
| PI0754D | 2020-12-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; VISIBILITY:GLASS, SIDE/REAR. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic. |
| 990851001E | 2020-12-21. Service bulletin. EQUIPMENT; STRUCTURE. Thins informational bulletin provides information on Paint-less Dent Repair Process. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.