2021 Chevrolet BLAZER Manufacturer communications & TSBs.Page 8
Original record summaries, dates and identifiers for this model-year. Records 701–800 of 812, ordered newest first. Dated records on this page: Oct 9, 2020–Apr 29, 2021.
Read the applicability before drawing a conclusion.
This archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.
NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.
Apr 29, 2021Service Bulletin/Repair Instructions
PIT5834B
NHTSA communication ID: 10193476
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary information addresses the possibility for the air conditioning to be slow to cool the cabin due to contamination in the refrigerant.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information regarding Witness Marks from Panel Adjustments Made During Manufacturing and that it is considered a normal condition.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to air conditioning repairs, or other repairs the require the evacuation of the a/c refrigerant.
Source components: ENGINE · ENGINE AND ENGINE COOLING.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides a procedure to correct a customer concern of Loss of Power Steering Assist, Service Power Steering and/or Steering Assist is Reduced Drive with Care Message Displayed on Driver Information Center (DIC).
Source components: AIR BAGS · POWER TRAIN · STEERING.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to technician's if they remove the front timing cover when performing a repair, they should inspect the timing chain guide upper bolt for being loose. This document is an attempt to collect parts so engineering can investigate the concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp illuminated on Driver Information Center (DIC) with DTCs P3055, P3056 Set.
Source components: ELECTRICAL SYSTEM · EXTERIOR LIGHTING.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ (U.S. Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates information regarding a Vibration Type Noise from the metal gasket tabs between the front exhaust and muffler.
Source components: BACK OVER PREVENTION · ENGINE AND ENGINE COOLING · SUSPENSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a condition where the radio may display a :connection not availale, please call OnStar agent". This bulletin advises that Engineering is working on a software solution that will prevent the message from displaying when listening to non-SXM sources, but still allow the message to display when a loss of connectivity exists and the user is attempting to play Sirius XM.
Source components: BACK OVER PREVENTION:SOFTWARE · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
NHTSA source summary · Original PDF not reviewed by Recallfolio
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates information regarding a Vibration Type Noise from the metal gasket tabs between the front exhaust and muffler.
Source components: BACK OVER PREVENTION · ENGINE AND ENGINE COOLING · SUSPENSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer or cam drive system component related service procedures.
Source components: ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Airbag Warning Lamp illuminated on the Driver Information Center (DIC).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2021 and newer model year vehicles with RPO ATH (U.S. Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates information regarding a Vibration Type Noise from the metal gasket tabs between the front exhaust and muffler.
Source components: BACK OVER PREVENTION · ENGINE AND ENGINE COOLING · SUSPENSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information for dealers/technicians on Vehicles that Will Not Hold Set Cruise Control Speed in Enhanced Cruise Control Mode.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
Source components: ENGINE AND ENGINE COOLING · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides repair information to correct a customer concern of Instrument Cluster Resets, Center Display Goes Blank, or Gauges Inoperative.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal.
Source components: ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that a dealer may encounter a vehicle that is making a grinding or growling noise on the first few brake applications after the vehicle has been sitting overnight. The dealer is instructed to perform no repairs at this time as engineering is looking into a repair. The dealer is advised that this PI will be converted into a bulletin with repair instruction when updated parts are available.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates noise condition that has been identified and the repair that is in process. A special Labor Operation was added for tracking purposes only. All models associated with the in process repair have been added to this PI.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to modify the rear suspension rebound pin and reinstall to correct a condition of Squeak/Creak Noise from Rear Suspension.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. On certain vehicles equipped with automatic transmissions, the clutch spring retaining ring may not be fully seated. Vehicles with this condition may set DTC Code P0747 and the MIL light (malfunction indicator light) will illuminate. This typically occurs at low mileage. Dealers will inspect the transmission by following the procedure and if it fails, the transmission will be replaced.
Source components: AIR BAGS · EXTERIOR LIGHTING · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service AWD Lamp illuminated on the Driver Information Center (DIC) and also having multiple DTCs set.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service AWD Lamp illuminated on the Driver Information Center (DIC) and also having multiple DTCs set.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that a dealer may encounter a vehicle that is making a grinding or growling noise on the first few brake applications after the vehicle has been sitting overnight. The dealer is instructed to perform no repairs at this time as engineering is looking into a repair. The dealer is advised that this PI will be converted into a bulletin with repair instruction when updated parts are available.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation that an updated calibration will be released in the future to address the code setting.
Source components: AIR BAGS · ENGINE AND ENGINE COOLING · FUEL SYSTEM, GASOLINE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that a dealer may encounter a vehicle that is making a grinding or growling noise on the first few brake applications after the vehicle has been sitting overnight. The dealer is instructed to perform no repairs at this time as engineering is looking into a repair. The dealer is advised that this PI will be converted into a bulletin with repair instruction when updated parts are available.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that a customer may bring a vehicle in with an SES light on. If the technician finds a code P2B87 (auxiliary coolant pump underspeed) set in the ECM they are directed to not replace the G17 heater coolant pump because this will not fix the concern. The techician is instructed to clear the code and release the vehicle to the customer with the explanation that an updated calibration will be released in the future to address the code setting.
Source components: AIR BAGS · ENGINE AND ENGINE COOLING · FUEL SYSTEM, GASOLINE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.
Source components: AIR BAGS · BACK OVER PREVENTION · ENGINE AND ENGINE COOLING.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides a service procedure to correct a customer concern of Power Liftgate Stops When Opening and/or Will Not Close from Open Position DTC B153F Sets.
Source components: ELECTRICAL SYSTEM · STRUCTURE:BODY:HATCHBACK/LIFTGATE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides a service procedure to correct a customer concern of Power Liftgate Stops When Opening and/or Will Not Close from Open Position DTC B153F Sets.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication requests information from the technician about vehicles that may have Bluetooth or phone projection issues. Dealer should request as much information from the customer on the concern as possible and fill in the questionaire.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication requests information from the technician about vehicles that may have Bluetooth or phone projection issues. Dealer should request as much information from the customer on the concern as possible and fill in the questionaire.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides repair information to correct a customer concern of the Service Engine Soon Lamp illuminated and/or Service Power Brake Assist message displayed, with DTCs P0557 or P0558 Stored.
Source components: ENGINE · EQUIPMENT · SERVICE BRAKES, HYDRAULIC:POWER ASSIST.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a condition where the radio may display a :connection not availale, please call OnStar agent". This bulletin advises that Engineering is working on a software solution that will prevent the message from displaying when listening to non-SXM sources, but still allow the message to display when a loss of connectivity exists and the user is attempting to play Sirius XM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information and a service procedure for dealers/technicians on OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes.
NHTSA source summary · Original PDF not reviewed by Recallfolio
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · POWER TRAIN:AUTOMATIC TRANSMISSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information for dealers/technicians on Normal Characteristic - Wireless Phone Projection Audio Cuts Out Every 10 Seconds on New/Unsold Vehicles.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.