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Service bulletins for the 2020 Chevrolet Suburban

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.

844 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
22-NA-0092023-04-12. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
21-NA-0612023-04-12. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
18-NA-0732023-04-07. Service bulletin. ENGINE AND ENGINE COOLING. 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.
16-NA-2222023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
07-06-01-016I2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
00-06-01-026Q2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
00-06-01-012M2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
23-NA-0442023-03-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on AGM batteries that require less frequent charging in storage.
20-NA-1592023-03-30. Service bulletin. TIRES; WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
15-06-01-002O2023-03-30. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated.
PIT5551J2023-03-13. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
PIT4322N2023-03-13. Service bulletin. AIR BAGS; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
PIT5391F2023-03-13. Service bulletin. AIR BAGS; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that have a no crank or a start and then immediate stall, Service Engine Soon Malfunction Indicator lamp may not be on when the ignition is in the run position. Technician may find Diagnostic Trouble Codes P0513 and or P262B may also be set. Technician will pulled the driver sill plate and inspect the wiring for damaged or corroded circuits. Technician will repair any damaged or corroded circuits.
PIP5628E2023-03-13. Service bulletin. EQUIPMENT:ELECTRICAL:ACCESSORY GENERATOR:OUTLETS/RECEPTACLE. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
16-NA-1302023-03-08. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
15-NA-0172023-03-04. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment.
18-NA-1462023-03-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
17-NA-0732023-03-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
PI0754F2023-03-03. Service bulletin. VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; UNKNOWN OR OTHER; STRUCTURE. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
99-04-20-002N2023-03-03. Service bulletin. POWER TRAIN. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
18-NA-2632023-02-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information for variable diagnostic time allowances on select labor operations (U.S. Only).
15-06-01-002N2023-02-28. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated.
01-08-42-001O2023-02-28. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
19-NA-2182023-02-23. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
18-NA-2792023-02-23. Service bulletin. EXTERIOR LIGHTING; LATCHES/LOCKS/LINKAGES; EQUIPMENT. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.