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#BS-2021-GMCTER-344A

2021 Gmc Terrain

Based on reports from 46 owners and 2 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

681

🟢

Preliminary Verdict

Proceed with Caution

Based on 46 complaints, 6 crashes, 0 fires, and 2 recalls.

See full verdict with buy/skip conditions

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

7 owners reported electrical issues — failures commonly reported around 79K miles.

!Inspect the DrivetrainMED

Look for symptoms of wear and premature failure

+ 6 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Electrical (7 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Electrical7 (15%)

Drivetrain7 (15%)

Engine6 (13%)

Brakes5 (11%)

Other3 (7%)

Fuel System3 (7%)

Suspension2 (4%)

Lane Departure: Blind Spot Detection2 (4%)

2021 Gmc Terrain: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 15% of all reports filed for the 2021 Gmc Terrain, with 7 owners filing complaints with NHTSA. The median mileage at time of complaint is 78,843 miles, suggesting issues tend to surface around the 79K-mile mark.

Drivetrain Issues

Drivetrain complaints account for 15% of all reports filed for the 2021 Gmc Terrain, with 7 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.

Engine Issues

Engine complaints account for 13% of all reports filed for the 2021 Gmc Terrain, with 6 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.

Brakes Issues

Brakes complaints account for 11% of all reports filed for the 2021 Gmc Terrain, with 5 owners filing complaints with NHTSA. Owners should pay attention to brakes-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

Complaints filed with NHTSA by year for the 2021 Gmc Terrain. Recent trend: decreasing.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (2 recalls)

21V612000Aug 2021

TIRES:TREAD/BELT

General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Equinox and GMC Terrain vehicles equipped with certain Hankook tires. The tires may have been manufactured with an insufficient amount of curative agent, which could cause tread separation.

23V339000Jun 2023

CHILD SEAT:VEHICLE LATCH ANCHOR

General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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2021 Gmc Terrain vs. Class Average (Small Sport Utility Vehicle 2WD)

This vehicle

Class avg

172

Below the class average — fewer complaints than typical small sport utility vehicle 2wd vehicles. A good sign.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 46 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Gmc Terrain Model Years

2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010

View all Gmc Terrain years →

2021 Gmc Terrain: Frequently Asked Questions

What is the most common problem with the 2021 Gmc Terrain?

The most commonly reported issue with the 2021 Gmc Terrain is related to the electrical, with 7 complaints filed with NHTSA.

Is the 2021 Gmc Terrain reliable?

The 2021 Gmc Terrain has 46 complaints, 6 crash reports, and 0 fire reports filed with NHTSA. This is below the class average — a positive sign for reliability.

How much does it cost to fix 2021 Gmc Terrain problems?

Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.

Does the 2021 Gmc Terrain have any recalls?

Yes, the 2021 Gmc Terrain has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Gmc Terrain problems start?

Based on 8 complaints with mileage data, the median mileage at time of complaint is 78,843 miles. The highest concentration of reported issues occurs in the 60–90K mile range. The full report breaks down exactly which components fail at each mileage bracket.

What’s in the full report?

10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.

How is this different from free NHTSA data?

NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.

How is this different from Carfax?

Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.

What if the report isn’t useful?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.