Fault profile
Complaint-component records on this vehicle, grouped by family. A complaint naming two systems counts once in each.
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
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.
Power train
Electrical system
Engine & cooling
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 |
|---|---|---|---|
| 21V440000 | Equipment | General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer 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 |
|---|---|---|---|
| 2021365 2021-06-10 | Accessories | 14,781 | Issue: On certain vehicles, the emergency spare tire jack could break if it is not properly positioned under the vehicle. If this happens, the jack could collapse and the vehicle could fall suddenly. |
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. |
| N242484750 Jan 2025 | WARRANTY EXTENSION | Engine | Special Coverage. Certain vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. |
| N242484750-01 Oct 2025 | WARRANTY EXTENSION | Engine | Special Coverage. Certain 2022 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. |
| N242484750-02 Sep 2026 | WARRANTY EXTENSION | Engine | Special Coverage. Certain 2022 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. |
| PIT5698F Sep 2026 | Unknown Or Other | This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it. |
Show 55 more bulletins
| Bulletin | Type | Component | Summary |
|---|---|---|---|
| PIT5995B Sep 2026 | Unknown Or Other | This Preliminary Information provides the dealer information of the location of the rear seat child anchors. | |
| PIP4902W Sep 2026 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIT6196A Aug 2026 | Unknown Or Other | This Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative. | |
| PIC6551C Aug 2026 | Unknown Or Other | This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues | |
| PIC6589B Jul 2026 | Unknown Or Other | This Preliminary information communicates to the techicians a diagnostic tip if a customer has a complaint of a whistle/wind noise at highway speeds. | |
| PIC6548B Jul 2026 | Unknown Or Other | This Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature after the front camera was replaced. | |
| PIT5099J Jul 2026 | Unknown Or Other | PI to help diagnose A/C concern | |
| PIT5966F Jun 2026 | Unknown Or Other | This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message. | |
| PIP6033B Jun 2026 | Unknown Or Other | This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces. | |
| PIP6031E Jun 2026 | Unknown Or Other | This PI addresses leaks from the case half and provides repair direction to dealer technicians | |
| PIP6032C Jun 2026 | Unknown Or Other | PIP6032B provides diagnostic direction for dealers when encountering transmission leaks | |
| PIT6519 May 2026 | Unknown Or Other | This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available. | |
| PIC6551B May 2026 | Unknown Or Other | This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues | |
| PIC6423A May 2026 | Unknown Or Other | Pi created to provide GM dealers with information on gathering information for projection issue | |
| PIC6626A May 2026 | Unknown Or Other | PI created to guide technicians through radio restriction process | |
| PIP6029A Apr 2026 | Unknown Or Other | This PI instructs dealers to install foam around the shifter cable to stop rattling | |
| PIT3271Q Apr 2026 | Unknown Or Other | This preliminary information communicates information about how to determine if a wheel and tires size change is available. | |
| PIC6553B Mar 2026 | Unknown Or Other | This bulletin communicates to a dealer the repair direction that should be taken if they encounter a vibration from the engine when the vehicle is parked facing downhill. | |
| N25-250552 Mar 2026 | SOFTWARE UPDATE | Unknown Or Other | Improvements to OnStar functionality. |
| 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 | |
| N25-250552 Feb 2026 | SOFTWARE UPDATE | Unknown Or Other | Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation. |
| PIC6626 Jan 2026 | Unknown Or Other | PI created to guide technicians through radio restriction process | |
| PIP5929G Jan 2026 | Unknown Or Other | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. | |
| 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. | |
| PIP4902U Jan 2026 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIC6632 Dec 2025 | Unknown Or Other | This bulletin communicates to the dealer actions to take when a customer has no or reduced air flow from HVAC vents. | |
| PIP6033A Dec 2025 | Unknown Or Other | This Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces. | |
| PIP6031D Dec 2025 | Unknown Or Other | This PI addresses leaks from the case half and provides repair direction to dealer technicians | |
| N25-250552 Dec 2025 | SOFTWARE UPDATE | Unknown Or Other | Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation. |
| 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... | |
| PIP6036C Oct 2025 | Unknown Or Other | This Preliminary information communicates diagnostic aids for a surge or fishbite concern | |
| PIP5975B Oct 2025 | Unknown Or Other | This PI advises to get a session log for transmissions with broken chains | |
| 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 | |
| PIP5929F Oct 2025 | Unknown Or Other | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. | |
| PIC6551A Oct 2025 | Unknown Or Other | This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues | |
| PIP5929E Oct 2025 | Unknown Or Other | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. | |
| PIT6440 Oct 2025 | Unknown Or Other | The Driver Information Center may display a message of Transport Mode On after the ignition is cycled. | |
| 13598 Sep 2025 | Unknown Or Other | New Vehicle Monitoring Programs Section in IVH | |
| 23-NA-119 Sep 2025 | Power Train | This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set. | |
| PIP4902T Aug 2025 | Unknown Or Other | This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. | |
| PIP5929D Aug 2025 | Unknown Or Other | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. | |
| PIT6059C Aug 2025 | Unknown Or Other | This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera. | |
| 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. | |
| PIP6031C Aug 2025 | Unknown Or Other | This PI addresses leaks from the case half and provides repair direction to dealer technicians | |
| PIP5601B Jul 2025 | Unknown Or Other | This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC. | |
| PIP5601C Jul 2025 | Unknown Or Other | This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC. | |
| PIP6031B Jul 2025 | Unknown Or Other | This PI addresses leaks from the case half and provides repair direction to dealer technicians | |
| PIP6031A Jun 2025 | Unknown Or Other | This PI addresses leaks from the case half and provides repair direction to dealer technicians | |
| PIP5929C Jun 2025 | Unknown Or Other | This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A. | |
| 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. |
| PIP6032B Jun 2025 | Unknown Or Other | PIP6032B provides diagnostic direction for dealers when encountering transmission leaks |
Showing 60 of 633 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.
- 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.
- 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.
- 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 1 recall campaign 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 4 warranty extensions 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 Trailblazer →