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NHTSA FEDERAL EVIDENCE AUDITAudited: 2026-08-25

2025 Buick Encore GX Common Problems & Defect Telemetry

Authoritative defect intelligence synthesized from 14 verified NHTSA owner complaints, 0 federal safety recalls, and interquartile failure mileage telemetry.

Data Grade: LOW6 Odometer Verified EntriesMethodology
Executive AI Defect Summary

The 2025 Buick Encore GX receives a 8.2/10 MazicBay Reliability Index based on 14 verified NHTSA federal complaints and 0 safety recalls. The primary reported failure mode is Electrical Parasitic Drain, Infotainment & Harness Reports with a median failure point at 13,497 miles (IQR: 13,24813,745 mi). Out-of-warranty repairs benchmark at $280 – $850 .

2025 Buick Encore GXNear-Luxury2025
DLC Port: Under driver side lower dash near knee panel

*Representative vehicle platform imagery. Body styling varies across generations.

MazicBay Reliability Index
8.2 / 10

2.3 complaints / 10k sold

NHTSA Owner Complaints
14

Verified US federal records

Safety Severity Grade
Critical Risk

Crash, fire & stall audit

Federal Safety Recalls
0

0 Active / Free Remedies

Switch Encore GX Model Year (2014–2025)
NHTSA Defect Subsystem Breakdown

2025 Encore GX Failure Distribution by Vehicle Subsystem

100% Normalized Telemetry
38%26%16%12%
Engine & Powertrain:38%
Electrical & Sensors:26%
Steering & Suspension:16%
Brakes & ABS Hydraulics:12%
Airbags & Body Structure:8%
Defect Clustering

Top Reported Problem Clusters (6)

Ranked by NHTSA Complaint Frequency
#1 ELECTRICAL SYSTEM & BATTERYMedium Severity79% Match Confidence

Electrical Parasitic Drain, Infotainment & Harness Reports

8
Federal Complaints
Failure Mileage (Median):13,497 milesIQR: 13,24813,745 mi
Estimated Repair Cost:$280 – $850 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Unexplained battery drain after sitting overnight
  • Infotainment display / instrument cluster blackouts
  • Accessory malfunction / alternator fault warnings
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11751200 • Filed: 07/17/2026

The contact owned a 2025 Buick Encore GX. The contact stated that while driving at an undisclosed speed, the GPS failed to operate properly. Additionally, the air conditioning system was inoperable. The contact stated that while driving in the heat, the contact to briefly beca...

ODI #11728488 • Filed: 04/01/2026Odometer: 13,993 mi

Second complete powertrain failure on March 14, 2026 at 13,993 miles, nine days after first repair (complete transmission replacement for bone-dry sealed transmission). Symptoms: sudden loss of power on highway (unable to exceed 20 mph with accelerator fully depressed), hollow...

ODI #11728489 • Filed: 04/01/2026

nStar remote diagnostic system returned five false-negative results across two confirmed mechanical failures. January 2, 2026: two diagnostics at 5:50 PM and 5:53 PM returned "No Error Code Found" while the transmission was actively failing. At 8:39 PM, the system identified P...

#2 ENGINE & COOLINGMedium Severity65% Match Confidence

Engine Stalling, Oil Consumption & Cooling Defect Reports

5
Federal Complaints
Failure Mileage (Median):13,497 milesIQR: 13,24813,745 mi
Estimated Repair Cost:$950 – $3,200 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Engine sudden stall / hesitation while driving
  • Abnormal oil burning / consumption
  • Check Engine Light (MIL) flashing
  • Engine overheating / coolant loss
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11751200 • Filed: 07/17/2026

The contact owned a 2025 Buick Encore GX. The contact stated that while driving at an undisclosed speed, the GPS failed to operate properly. Additionally, the air conditioning system was inoperable. The contact stated that while driving in the heat, the contact to briefly beca...

ODI #11728488 • Filed: 04/01/2026Odometer: 13,993 mi

Second complete powertrain failure on March 14, 2026 at 13,993 miles, nine days after first repair (complete transmission replacement for bone-dry sealed transmission). Symptoms: sudden loss of power on highway (unable to exceed 20 mph with accelerator fully depressed), hollow...

ODI #11728489 • Filed: 04/01/2026

nStar remote diagnostic system returned five false-negative results across two confirmed mechanical failures. January 2, 2026: two diagnostics at 5:50 PM and 5:53 PM returned "No Error Code Found" while the transmission was actively failing. At 8:39 PM, the system identified P...

#3 TRANSMISSION & DRIVETRAINMedium Severity74% Match Confidence

Transmission Hesitation, Hard Shifting & Slipping Reports

5
Federal Complaints
Failure Mileage (Median):13,497 milesIQR: 13,24813,745 mi
Estimated Repair Cost:$1,400 – $3,800 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Hard gear shifts / delayed engagement into Drive/Reverse
  • Transmission shudder / jerking under acceleration
  • Transmission slipping between gears
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (3)
ODI #11728488 • Filed: 04/01/2026Odometer: 13,993 mi

Second complete powertrain failure on March 14, 2026 at 13,993 miles, nine days after first repair (complete transmission replacement for bone-dry sealed transmission). Symptoms: sudden loss of power on highway (unable to exceed 20 mph with accelerator fully depressed), hollow...

ODI #11728489 • Filed: 04/01/2026

nStar remote diagnostic system returned five false-negative results across two confirmed mechanical failures. January 2, 2026: two diagnostics at 5:50 PM and 5:53 PM returned "No Error Code Found" while the transmission was actively failing. At 8:39 PM, the system identified P...

ODI #11728490 • Filed: 04/01/2026Odometer: 13,000 mi

Sealed transmission found "bone dry" at approximately 13,000 miles. No consumer-accessible dipstick. Complete transmission failure January 2, 2026. Second complete powertrain failure March 14, 2026, nine days after first repair completed. Symptoms on second failure (loss of po...

#4 AIRBAGS & SAFETY RESTRAINTSLow Severity69% Match Confidence

Airbag Occupant Detection & Inflator Defect Reports

2
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$400 – $1,200 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • SRS Airbag warning lamp illuminated
  • Passenger occupant classification sensor failure
  • Seat belt retractor lockup
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (2)
ODI #11751200 • Filed: 07/17/2026

The contact owned a 2025 Buick Encore GX. The contact stated that while driving at an undisclosed speed, the GPS failed to operate properly. Additionally, the air conditioning system was inoperable. The contact stated that while driving in the heat, the contact to briefly beca...

ODI #11707190 • Filed: 12/26/2025

The vehicle has a safety-related defect involving the safety restraint system. A warning message/light appears indicating a malfunction affecting occupant protection. This defect raises concerns regarding proper airbag and restraint operation in the event of a crash. I present...

#5 FUEL SYSTEM & INJECTIONLow Severity83% Match Confidence

Fuel Pump Pressure Loss & Fuel Delivery Defect Reports

1
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$650 – $1,250 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Sudden loss of propulsion power at highway speeds
  • Extended engine cranking / failure to restart
  • Fuel odor near fuel tank / engine bay
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (1)
ODI #11709394 • Filed: 01/07/2026

The contact owns a 2025 Buick Encore GX. The contact stated that after refueling the vehicle, the gas pump nozzle was difficult to remove from the fuel filler neck when the vehicle was done refueling. The contact stated that there was one fueling station that he avoided due to...

#6 STEERING & SUSPENSIONLow Severity65% Match Confidence

Electric Power Steering Assist & Suspension Noise Reports

1
Federal Complaints
Failure Mileage (Median):55,000 milesIQR: 35,00075,000 mi
Estimated Repair Cost:$450 – $1,400 MazicBay Repair Intelligence Model
Recall Status:Out-of-Pocket / TSB RemedyNHTSA Campaign Audit
Reported Defect Symptoms
  • Sudden loss of electric power steering assist
  • Steering wheel pull or highway wander
  • Clunking / knocking noise over bumps
Potentially Associated OBD-II Codes

Correlated via MazicBay Diagnostic Engine (not NHTSA verified fact).

Sample Verified NHTSA Evidence Records (1)
ODI #11660274 • Filed: 05/11/2025

I had just drove the car off the lot. On my way home there is this violent grip of the steering wheel pulling me into oncoming traffic. Then again to the right towards a telephone pole. During another casual drive, there was a loud clunk and another violent grip of the steerin...

Pre-Purchase Inspection Checklist for 2025 Buick Encore GX

Before purchasing a used 2025 Buick Encore GX, perform the following targeted inspections based on reported federal defect patterns:

1. Cold Start & Idle Diagnostics

Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).

2. Transmission Shift Quality Audit

Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.

3. Federal Recall Completion Check

Verify that all 0 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.

4. Electrical & Infotainment Drain Check

Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.

Frequently Answered Questions

Defect & Reliability Q&A: 2025 Buick Encore GX

Is the 2025 Buick Encore GX a reliable used car?

The 2025 Buick Encore GX earns a 8.2/10 MazicBay Reliability Index based on 14 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.

What is the most frequent defect reported on the 2025 Buick Encore GX?

The leading complaint category is Electrical Parasitic Drain, Infotainment & Harness Reports, with a median failure point around 13,497 miles (IQR: 13,24813,745 mi).

Are there free recall repairs available for the 2025 Buick Encore GX?

Yes, the NHTSA records 0 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.

2025 Buick Encore GX Owner Maintenance & Equipment CenterVerified battery BCI group sizes, oil sump capacities, and tested scan tools.
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