2021 Chevrolet Blazer Technical Service Bulletins

814 technical service bulletins (TSBs) are on record for the 2021 Chevrolet Blazer. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10183143Oct 13, 2020Equipment, Wheels. This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.
• 10183780Oct 9, 2020Equipment. This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
• 10182540Oct 7, 2020Forward 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".
• 10181724Sep 30, 2020Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10181178Sep 30, 2020Engine cooling. This Preliminary information communicates the possibility of a engine oil leak that may occur at the cam carrier gasket T joint area due to improper amount of sealer be applied
• 10181675Sep 29, 2020Body and structure, Equipment. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10181177Sep 29, 2020Visibility (wipers, defrost, mirrors). This Preliminary information communicates that a customer may come to the dealer with a complaint of a hum, drone or pulsing type noise at times. On investigation the dealer may discover that this concern only occurs when the customer is driving with one or both rear windows down or one front window down.
• 10181692Sep 25, 2020Transmission and drivetrain. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only).
• 10181695Sep 17, 2020Equipment, Electrical system. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
• 10181678Sep 11, 2020Engine cooling. This informational bulletin provides information on the new oil filter UPF63R to be used on the HFV6 Engines.
• 10181696Sep 10, 2020Electrical system. This informational bulletin provides information for dealers/technicians on Normal Characteristic - Wireless Phone Projection Audio Cuts Out Every 10 Seconds on New/Unsold Vehicles.
• 10181670Sep 2, 2020Engine cooling. This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
• 10181660Sep 2, 2020Transmission and drivetrain. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10180293Aug 10, 2020Transmission and drivetrain. This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.

← All problems reported for the 2021 Chevrolet Blazer