Technical Service Bulletins

• Automatic Trans
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
• Body Interior
  • 2022 Hd SILVERADO Or Sierra Turn Signals Inoperable, Erratic, And/Or Stay Illuminated After Canceling (22-NA-078)
• Brakes Control Systems
  • Information On EBOOST Applications (K160 Brake System Control Module) For False DTC C05B0 Setting After A Brake Inspection, Brake Pad Replacement, Or Any Other Work That Would Require Caliper Piston To Be Reseated (22-NA-247)
• Communication Devices
  • Radio Software Version V171 Update (24-NA-108)
• Engine Control Systems
  • Diagnostic Tip For Malfunction Indicator Lamp (Mil) Illuminated - DTC P2C7A, P2BAA, P20FE, And/Or P2EAD Set (23-NA-138)
• Entertainment Systems
  • Radio Software Version V171 Update (24-NA-108)
• Exhaust
  • Diagnostic Tip For Malfunction Indicator Lamp (Mil) Illuminated - DTC P2C7A, P2BAA, P20FE, And/Or P2EAD Set (23-NA-138)
  • Information On Excessive Diesel Exhaust Fluid (Def) Usage (20-NA-082)
• Exterior Body Panels
  • Normal Characteristic - Bump Feel Or Clunk Noise After A Stop (PIT5161K)
• Front Suspension
  • INFORMATIONON Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications (PIT5403H)
• Fuel System
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
  • Normal Characteristic - Bump Feel Or Clunk Noise After A Stop (PIT5161K)
• Gauges & Instrument Panels
  • Odometer Displays Zero Or Incorrect Mileage After Programming DTCS U1973 U197E U197F U2A90 U2A91 U1978 And/Or U197F (PIT5851F)
• HVAC Control Systems
  • Poor Heater Performance On Drivers Side (PIT5868C)
• Interior/Exterior Trim
  • Underbody Aerodynamic Cover Missing (23-092-23)
• Lubrication System
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
• Manual Steering
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
• Mechanical - Hydraulic
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
• Procedures
  • Information On How To Have A Fuel Or Fluid Sample Tested (25-NA-065)
• Rear Suspension
  • INFORMATIONON Various Vehicle Handling Concerns Suspension Noise Or Damaged Suspension Components Due To Vehicle Modifications (PIT5403H)