Engine
3.6L 6-cyl
How to read this file. Complaint records are unverified owner submissions to the federal safety agency. Counts are raw, not adjusted for sales volume or vehicle age. Recall campaigns apply to the model; only a VIN check shows whether this car is affected or repaired. Parts shown are named by an editorial note or listed as a search directory; none is a diagnosis. Full methodology.
Fault profile
Complaint-component records on this vehicle, grouped by family. A complaint naming two systems counts once in each.
Complaints are owner-reported and not verified by the agency.
When it fails
The timing of this vehicle's reported failures, from the complaint file itself. A cluster tells you what to expect and when; it is shaped by reporting behavior as well as by the vehicle.
Vehicle age when the failure occurred
Years between the model year and the owner's reported failure date. Based on 220 of 221 complaints with a usable failure date.
Odometer when the failure occurred
Owner-reported mileage at failure, in 20,000-mile bands. Based on 30 of 221 complaints reporting a plausible odometer (500 to 500,000 miles; unverified).
Known issues
The component families with the most complaint records against this vehicle. Counts, crash and fire figures belong to the whole family, not to any single named issue. Parts listed are related system parts, not a diagnosis.
Electrical system
76 complaint records
"COMMON ISSUE, The steering assist is reduced and temp gauge is stuck on C. This either a thermostat or temp sensor issue...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse electrical system parts in the directory →
Power train
74 complaint records
"The vehicle drops to low gear without warning (check engine light comes on). Causing speed to drop to less than 20Mph max...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse power train parts in the directory →
Engine & cooling
73 complaint records1 crash report
"The thermostat has failed, causing hot air to blow into the car. This is a known and common issue with the 2020 Blazer...."- one owner's federal complaint about this system; it may not describe the issue named above
Parts
No specific part is named for this issue. Browse engine & cooling parts in the directory →
Recall campaigns
Safety-recall remedies are normally provided at no charge. Under US federal law the mandatory free remedy applies when the vehicle was no more than 15 years old at the time the defect was determined; manufacturers often cover older vehicles voluntarily. Canadian rules differ. Confirm eligibility with the manufacturer using the VIN. Each campaign number links to the federal record.
| Campaign | Component | Summary | Remedy |
|---|---|---|---|
| 21V115000 | Tires | General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020... | Normally free |
| 20V668000 | Power Train | General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave,... | Normally free |
| 20V446000 | Air Bags | General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. | Normally free |
Transport Canada recalls
Recalls issued under Canadian law for this model year, from Transport Canada's Vehicle Recalls Database. Matched by model name, so a Canadian-market variant may appear here that was sold under another name in the US. Units are Canadian vehicles affected.
| Recall | System | Units (CA) | Summary |
|---|---|---|---|
| 2020520 2020-10-29 | Powertrain | 22,911 | Issue: On certain vehicles, the start-stop accumulator in the transmission may be missing bolts. As a result, transmission fluid could leak and eventually cause the transmission to stop working. |
| 2020350 2020-07-30 | Airbag | 76 | Issue: On certain vehicles, there may be a problem with the side curtain airbag inflators. As a result, the airbags may not inflate properly in a crash. |
Service bulletins and warranty extensions
Manufacturer communications to dealers on file with the federal agency: repair instructions, service campaigns, and warranty extensions. A warranty extension means the manufacturer may pay for a repair the recall table does not cover.
| Bulletin | Type | Component | Summary |
|---|---|---|---|
| 22-NA-244 May 2024 | WARRANTY EXTENSION | Electrical System | This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. |
| PIT5698F Sep 2026 | Unknown Or Other | This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it. | |
| PIP4902W Sep 2026 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIT5099J Jul 2026 | Unknown Or Other | PI to help diagnose A/C concern | |
| PIT3271Q Apr 2026 | Unknown Or Other | This preliminary information communicates information about how to determine if a wheel and tires size change is available. |
Show 55 more bulletins
| Bulletin | Type | Component | Summary |
|---|---|---|---|
| PIP4902V Mar 2026 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIP6104 Mar 2026 | Unknown Or Other | This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect. | |
| PIT6425D Mar 2026 | Unknown Or Other | This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss | |
| PIP5841H Feb 2026 | Unknown Or Other | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| PIT6425C Jan 2026 | Unknown Or Other | This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's | |
| PIP6098 Jan 2026 | Unknown Or Other | This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction. | |
| PIP5841G Jan 2026 | Unknown Or Other | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| PIP4902U Jan 2026 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIP5841G Dec 2025 | Unknown Or Other | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| PIT5214G Nov 2025 | Unknown Or Other | 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... | |
| PIT6425B Oct 2025 | Unknown Or Other | This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's | |
| PIT6425A Oct 2025 | Unknown Or Other | This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's | |
| PIP6087A Oct 2025 | Unknown Or Other | This PI gives the dealer direction on a shudder shake low speed for a possible fluid condition. | |
| PIT6440 Oct 2025 | Unknown Or Other | The Driver Information Center may display a message of Transport Mode On after the ignition is cycled. | |
| PIP6087 Sep 2025 | Unknown Or Other | This PI gives the dealer direction on a shudder shake low speed for a possible fluid condition. | |
| 13598 Sep 2025 | Unknown Or Other | New Vehicle Monitoring Programs Section in IVH | |
| PIP6085 Sep 2025 | Unknown Or Other | This Preliminary information communicates a possible issue with an engine timing chain, gear or crankshaft key. | |
| PIP4902T Aug 2025 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIC5650M Aug 2025 | Unknown Or Other | This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. | |
| PIP5601B Jul 2025 | Unknown Or Other | This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC. | |
| N252494770-01 Jun 2025 | SERVICE CAMPAIGN | Unknown Or Other | 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. |
| N252494770 Jun 2025 | SERVICE CAMPAIGN | Unknown Or Other | 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. |
| PIT6180A Jun 2025 | Unknown Or Other | This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog. | |
| PIP4902S Jun 2025 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| 25-NA-156 Jun 2025 | Wheels | This service bulletin provides information on Tire Sidewall Irregularities. | |
| 00-06-01-026R Jun 2025 | Engine | This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. | |
| PIT5074R May 2025 | Unknown Or Other | This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads. | |
| 23-NA-153 May 2025 | Engine | The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. | |
| 25-NA-118 May 2025 | Forward Collision Avoidance | This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues. | |
| 15-NA-010 May 2025 | Engine | This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states. | |
| 21-NA-240 Apr 2025 | Engine | This service bulletin provides diagnostic repair information to correct an oil leak in the engine. | |
| 24-NA-068 Apr 2025 | Engine | This service bulletin provides a procedure to test and replace the battery distribution fuse block if found the cause of the DTC and electric coolant pump inoperative. | |
| 25-NA-100 Apr 2025 | Engine | This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty. | |
| PIP5863C Apr 2025 | Unknown Or Other | This Preliminary information communicates to dealers’ information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. | |
| PI0281L Apr 2025 | Steering | This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers. | |
| PIP5841F Apr 2025 | Unknown Or Other | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| PIT5551R Apr 2025 | Unknown Or Other | 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". | |
| PIP5841E Apr 2025 | Unknown Or Other | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| 24-NA-229 Apr 2025 | Electrical System | This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain. | |
| 07-00-89-037W Apr 2025 | Unknown Or Other | This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs. | |
| 23-NA-074 Apr 2025 | Service Brakes | This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs. | |
| 25-NA-087 Apr 2025 | Electrical System | This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs. | |
| 21-NA-139 Apr 2025 | Electrical System | This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set. | |
| 13-08-116-001K Mar 2025 | Electrical System | The intent of this service 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. | |
| PIP5841E Mar 2025 | Engine | This Preliminary information communicates the potential for condensation to freeze up inside the Crankcase Pressure Sensor causing dtc P04FB to set. | |
| 25-NA-052 Mar 2025 | Engine | This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system. | |
| PIT6354 Mar 2025 | Unknown Or Other | This Preliminary information communicates A vehicle may be encountered with door chimes, dome lamps, mirrors inop or a radio that will not shut off when the door is opened. The tech is directed to inspect X500 and X600 for water intrusion. | |
| 25-NA-065 Mar 2025 | Steering | This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. | |
| 24-NA-098 Mar 2025 | Unknown Or Other | This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information. | |
| 23-NA-164 Mar 2025 | Electrical System | This service bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of Passive Functions Do Not Work). | |
| 08-03-10-006I Mar 2025 | Wheels | This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion. | |
| 23-NA-163 Mar 2025 | Electrical System | This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set. | |
| 15-06-03-001F Mar 2025 | Electrical System | This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries. | |
| 17-NA-073 Mar 2025 | Unknown Or Other | This warranty administration bulletin provides information regarding the field action courtesy transportation policy. | |
| 22-NA-094 Mar 2025 | Electrical System | This service bulletin provides repair information to correct a customer concern of a loss of cabin heat. |
Showing 60 of 822 distinct bulletins on file for this vehicle.
Before you buy this vehicle
A test-drive checklist generated from this vehicle's own complaint and recall record.
- Sit in it with the engine off and test everything that has a switch.Windows, locks, lights, the cluster, the radio. Electrical faults are this vehicle's story and the hardest to see on a drive: an intermittent no-start waits for the second week of ownership. Ask for the battery's age and whether any control module has been replaced.
- Drive it from a dead stop, twice, on a hill if you can.Shudder, hesitation, or a lurch under light throttle is how this vehicle's largest complaint cluster shows itself. Then ask for the transmission service history in writing; repeat repairs are a pattern, not a fluke.
- Cold-start it yourself and listen for the first thirty seconds.Knocking, ticking that fades as it warms, or blue or white smoke on startup are the sounds of this vehicle's engine cluster. Check the oil level and the coolant color, and ask whether the engine or its head gaskets have ever been out.
- Run the VIN against open recalls before you negotiate.This vehicle has 3 recall campaigns on file. An open recall needs VIN-specific confirmation. Many are quick, no-charge fixes and worth negotiating over; an unresolved do-not-drive advisory, or a remedy the manufacturer has not yet made available, should stop the purchase until it is resolved.
- Ask the dealer whether the warranty extension on file still applies to this VIN.The manufacturer issued 1 warranty extension for this vehicle (see the service bulletins section). Extended coverage often runs by years or miles from the original sale, and a repair the seller paid for may have been free.
- Ask for the service history in writing, then read it against this page.The complaint families above are where owners of this vehicle report trouble. Repairs in exactly those systems are evidence the car had the problem; no such repairs could mean it never developed it, or that it was never fixed. The test-drive items above are how you tell those apart.
Parts search directory
The generic parts list for this vehicle has its own page: a search launcher for every system, filtered by fuel type and era but not by engine, trim, or brake type. It is not a diagnosis and not a fitment guarantee.
Open the parts directory for this Chevrolet Blazer →