2020 Chevrolet Tahoe TSBs
852 manufacturer communications for the 2020 Chevrolet Tahoe sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2020 Tahoe problem report covers complaints, recalls, and investigations.
What the bulletins cover
Warranty extensions, campaigns & software updates
Worth checking your VIN against — these can mean free or reimbursed work if your vehicle qualifies.
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from…
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The…
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
Most recent service bulletins
The 20 most recent of 852 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
PI to help diagnose A/C concern
This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts. Dealers are to suspect/monitor the crankshaft position sensor.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical…
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
New Vehicle Monitoring Programs Section in IVH
This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.