OBD diagnostics · purchase protection

2021 Tesla Model 3
Common Problems & Inspection Guide

Verify baseline vehicle system stability data. Learn what to check on the physical vehicle computer before signing a bill of sale.

Connect Adapter & Check for Code Wipes

Platform Heritage

The Tesla Model 3 is a battery electric powered mid-size sedan with a fastback body style built by Tesla, Inc., introduced in 2017. The vehicle is marketed as being more affordable to more people than previous models made by Tesla. The Model 3 was the world's top-selling plug-in electric car for three years, from 2018 to 2020, before the Tesla Model Y, a crossover SUV based on the Model 3 chassis, took the top spot. In June 2021, the Model 3 became the first electric car to pass global sales of 1 million. A facelifted Model 3 with revamped interior and exterior styling was introduced in late 2023 for countries supplied by Gigafactory Shanghai and in early 2024 in North America and other countries supplied by the Tesla Fremont Factory.

Source: Wikipedia intro extract · as of Jun 23, 2026

Key facts for this model year

641NHTSA owner complaints
21Safety recalls on file
146Top issue reports · Forward Collision Avoid…
$0Typical OEM recall remedy cost to you

~7.3k average monthly buyer searches in the US (google ads data · as of Jun 23, 2026). Run a MotoMetrics scan for your VIN to see live repair exposure.

Verify the data — open primary sources · as of Jun 23, 2026

System Defect Summaries & Field Data

Active safety recalls on file: 21 (source: NHTSA Recalls API · as of Jun 23, 2026)

Top NHTSA complaint categories

  • FORWARD COLLISION AVOIDANCE — 146 reports (source: NHTSA Complaints API · as of Jun 23, 2026)
  • SERVICE BRAKES,FORWARD COLLISION AVOIDANCE — 53 reports (source: NHTSA Complaints API · as of Jun 23, 2026)
  • VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE — 40 reports (source: NHTSA Complaints API · as of Jun 23, 2026)
  • UNKNOWN OR OTHER — 31 reports (source: NHTSA Complaints API · as of Jun 23, 2026)
  • VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE — 24 reports (source: NHTSA Complaints API · as of Jun 23, 2026)

Recent recall summaries

Campaign 22V037000 · ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE · API record

Tesla, Inc. (Tesla) is recalling certain 2016-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The "rolling stop" functionality available as part of the Full Self-Driving (Beta) software may allow the vehicle to travel through an all-way stop intersection without first coming to a stop.

Campaign 21V834000 · AIR BAGS:SIDE/WINDOW:CURTAIN · API record

Tesla, Inc. (Tesla) is recalling certain 2020-2021, 2023 Model 3 vehicles. The left and/or right side curtain air bag may have been improperly secured to the roof rail, which could result in a twisted air bag. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 214, "Side Impact Protection" and 226, "Ejection Mitigation."

Campaign 21V835000 · SUSPENSION:CRITICAL FASTENERS · API record

Tesla, Inc. (Tesla) is recalling certain 2020-2021 Model Y and 2019-2021 Model 3 vehicles. The front suspension lateral link fasteners may loosen, allowing the lateral link to separate from the sub-frame.

Campaign 22V045000 · ELECTRICAL SYSTEM:SOFTWARE · API record

Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The audible chime may not activate when the vehicle starts and the driver has not buckled their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Campaign 21V387000 · SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER · API record

Tesla, Inc. (Tesla) is recalling certain 2019-2021 Model 3 and 2020-2021 Model Y vehicles. The brake caliper bolts may be loose, allowing the brake caliper to separate and contact the wheel rim.

YouTube voice themes below are research hints only — verify against NHTSA data before citing.

Search demand cross-check: ~7,263 avg monthly intent searches (source: google ads data · as of Jun 23, 2026)

On-Site Tesla Model 3 Pre-Purchase Checklist

  1. Verify OBD-II readiness monitors are complete (not recently cleared) using a full protocol scan.
  2. Compare dashboard mileage to ECU-stored odometer modules where accessible.
  3. Pull permanent and pending DTCs — not only stored codes visible on the dash.
  4. Inspect systems related to FORWARD COLLISION AVOIDANCE (NHTSA complaint cluster — verify during test drive and PPI).
  5. Inspect systems related to SERVICE BRAKES,FORWARD COLLISION AVOIDANCE (NHTSA complaint cluster — verify during test drive and PPI).
  6. Inspect systems related to VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE (NHTSA complaint cluster — verify during test drive and PPI).
  7. Inspect systems related to UNKNOWN OR OTHER (NHTSA complaint cluster — verify during test drive and PPI).
  8. Inspect systems related to VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE (NHTSA complaint cluster — verify during test drive and PPI).
  9. Confirm recall remedy completed for ELECTRICAL SYSTEM:ADAS:AUTONOMOUS/SELF DRIVING:SOFTWARE (campaign 22V037000).
  10. Confirm recall remedy completed for AIR BAGS:SIDE/WINDOW:CURTAIN (campaign 21V834000).
  11. Confirm recall remedy completed for SUSPENSION:CRITICAL FASTENERS (campaign 21V835000).
  12. Run a MotoMetrics on-site scan for Tesla Model 3 before signing the bill of sale.

Alternative Inferences & Cross-Shopping Matrix

Adjacent model years for this nameplate and equivalent footprints shoppers compare across brands.

Generational cohorts

No other model years indexed for this nameplate yet.

Class competitors

2018 Bmw 550I 2022 Tesla Model Y

Vehicle health varies wildly by individual history. Aggregate recall and complaint data cannot tell you whether the specific car on the lot had its monitors cleared or its odometer rolled back. Verify the physical or digital scan before you sign a bill of sale.

Launch Diagnostic Scanner
Initialize On-Site Scan