Tesla Model Y Phase 1
Weaknesses, engine ratings and buying advice
The Model Y (2020–2024) was the world's best-selling car in 2023 — and the used market's most polarizing EV buy. Build quality varies wildly by production date and factory: early 2020 Fremont is the worst, Austin (Giga Texas) from mid-2022 is measurably better, and 2023 is the most settled year. The single most important number when buying used: battery state of health.
The #1 mechanical issue: front upper control arm ball joint failure (the pivot point connecting the wheel assembly to the suspension arm wears out) — water ingresses through the seal, corrodes the joint, creates "duck quacking" noise over bumps. Design flaw present across 2020–2024, typical onset 25,000–60,000 miles. Tesla often covers labor under goodwill ($300–$800), but out-of-warranty worst case with sheared bolts: $1,500–$4,000. NHTSA recall 20V709000 covered 2020 units.
Heat pump failure below 14°F is the cold-climate story — total loss of cabin heat (recall 22V050, 26,000+ vehicles, OTA fix for 2021–2022 production). Touchscreen yellow banding from UV degradation ($1,500–$2,000 screen replacement out of warranty). 12V auxiliary battery fails without warning at 3–4 years regardless of mileage ($120–$125 at Tesla SC). Phantom braking on Autopilot persists since radar deletion in May 2021.
Battery degradation: ~5–8% loss by 100,000 miles (NCA packs), ~85% remaining at 200,000 miles per Tesla's Impact Report. LFP packs (late 2021+ SR) degrade slower. 4680 cells (Austin, late 2022+) have lower energy density but insufficient long-term data. Supercharger-heavy and hot-climate parkers degrade faster.
Factory quality: Austin 2023+ has measurably better panel fit than Fremont contemporaries (Sandy Munro teardown confirmed). VIN decode: "7" prefix = Fremont, specific plant code in position 11 identifies Austin.
Test-drive checklist: front suspension clunk at parking-lot speeds, yellow screen border, trunk liner for water damage, cold-weather heat pump operation, battery health via Tessie app (<85% on sub-80k-mile car = red flag). Verify all 21+ NHTSA recalls are OTA-current (Settings > Software > Release Notes).
2026 market: 2021 LR AWD ~$25,864. 2022 ~$28,728. 2023 ~$31,790. Insider pick: 2023+ LR AWD, Austin-built — most settled Phase 1 year, Comfort Suspension upgrade, fewest complaints. For budget: 2020–2021 LR AWD built after July 2020 but before Feb 2021 — post-refresh, pre-heat-pump-recall batch, low $20,000s with 50k–70k miles.
456 PS
Performance · Elektro
3.3s in an SUV — Track Mode yes, track days honestly no
Legendary!Generations
Engine Overview
The Tesla Model Y Phase 1 is available with 3 engine variants — from 299 to 462 hp.
Shares 76% of parts with Model 3 Long Range including the dual motor drivetrain. Taller, heavier body means more suspension stress. Upper control arm ball joint creaking is the #1 complaint from 40-60k miles. Heat pump on 2020-2022 had cold-weather failures (recall). Battery degradation tracks Model 3 Long Range almost identically.
- !! 12V battery failure (2020-2021) from 100,000 km
Affects 2020-2021 lead-acid 12V equipped cars. Same failure as Model 3. Li-ion 12V from late 2021.
Symptoms: Car completely dead - !! Rear drive unit inverter failure from 130,000 km
Early Model Y production showed rear drive unit failures requiring complete replacement. Reports of failures under 10,000 miles. Covered under 8-year warranty. Out-of-warranty: $6,000-10,000.
Symptoms: Sudden loss of rear power, error messages, reduced performance mode - !! Drive unit bearing whine from 160,000 km
Same drive unit as Model 3 LR. Higher vehicle weight adds bearing load. Whine typically 80-100k miles.
Symptoms: Whining or milling from motors
+ 1 more engine weaknesses + vehicle weaknesses
Performance dual motor in a crossover body. Same drivetrain as Model 3 Performance with added weight. Track Mode available but higher center of gravity limits track utility. 20-inch Uberturbine wheels are harsh and contribute to suspension wear. Drive unit bearing whine tends to appear earlier under sustained high loads.
- !! 12V battery failure (2020-2021) from 100,000 km
Same 12V drain on 2020-2021 lead-acid cars. Li-ion 12V from late 2021 resolved it.
Symptoms: Car dead, unable to open doors - !! Rear motor inverter failure from 32,000 km
Rear drive unit inverter fails catastrophically — pyrotechnic fuse blows, permanently disabling rear motor. Vehicle reverts to front-motor-only operation with severely reduced power and range. More common under sustained high-power output (track use, towing, repeated launches). Out-of-warranty repair: $5,800-10,000 for complete rear drive unit. Covered under 8-year drivetrain warranty.
Symptoms: Sudden loss of rear power, vehicle in reduced performance mode, drivetrain fault warning, noticeably slower acceleration - !! Drive unit bearing whine — earlier onset from 130,000 km
Performance loads + heavier SUV body accelerate bearing wear. Expect whine 60-80k miles with spirited driving.
Symptoms: Whining noise, milling on deceleration
+ 2 more engine weaknesses + vehicle weaknesses
Shares 76% of parts with Model 3 Standard Range including the dual motor drivetrain. Taller, heavier body means more suspension stress. Upper control arm ball joint creaking is the #1 complaint from 40-60k miles. Heat pump on 2020-2022 had cold-weather failures (recall). Battery degradation tracks Model 3 Long Range almost identically.
- !! 12V battery failure (2020-2021) from 100,000 km
Affects 2020-2021 lead-acid 12V equipped cars. Same failure as Model 3. Li-ion 12V from late 2021.
Symptoms: Car completely dead - !! Rear drive unit inverter failure from 130,000 km
Early Model Y production showed rear drive unit failures requiring complete replacement. Reports of failures under 10,000 miles. Covered under 8-year warranty. Out-of-warranty: $6,000-10,000.
Symptoms: Sudden loss of rear power, error messages, reduced performance mode - !! Drive unit bearing whine from 160,000 km
Same drive unit as Model 3 LR. Higher vehicle weight adds bearing load. Whine typically 80-100k miles.
Symptoms: Whining or milling from motors
+ 1 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Gigacast front structure crack — Austin/Berlin builds Structural crack in front aluminum gigacasting documented on Austin-built Model Y (VIN: 7G2). Tesla told owner "safe to drive" and refused repair. Only Austin and Berlin use gigapress for front/rear castings. Single confirmed case but extreme severity — casting is structural and load-bearing. Crash damage to gigacast area likely totals the car. Symptoms: Visible crack in front aluminum casting, audible creaking from front structure over bumps from 25,000 km | High | |
| Rear hatch glass spontaneous cracking Rear glass cracks without impact. Temperature differentials cause uneven thermal expansion on the large surface. Manufacturing stress contributes. Warranty covers stress cracks (no impact evidence) 4 years/50,000 miles. Replacement $800-1,600. Symptoms: Crack in rear glass without impact, starting from edge, spreading from 48,000 km | Medium | |
| Panoramic roof glass stress cracking Full-glass roof develops stress cracks from thermal differentials — sunlight heats unevenly vs shaded edges. No impact point visible. Warranty 4 years/50k miles. Replacement $900-2,000. Symptoms: Crack from roof glass edge without impact, spreading over days from 32,000 km | High | |
| Water ingress in rear cargo area — liftgate seal Water leaks into trunk through the liftgate assembly. Tesla Service Bulletin SB-23-10-003 confirms multiple causes: sealant irregularities, defective taillight gaskets, blocked drains, and liftgate misalignment. Fix involves resealing with Loctite 5510 hybrid polymer and replacing lamp gaskets. 1.8-hour repair at service center. Symptoms: Water pooling in cargo area after rain, wet trunk carpet, musty smell from trunk, water dripping from taillight area from 16,000 km | Low | |
| Windshield stress crack Thermal shock from cabin preconditioning in cold weather — hot air on frozen windshield. Especially Model Y Performance with rigid chassis. Tesla often denies warranty. Symptoms: Spontaneous crack without rock chip, typically from bottom edge, after preconditioning in winter from 40,000 km | High | |
| Body panel alignment — hatch and doors (2020-2022) Affects 2020-2022 builds primarily. Hatch-to-body misalignment, uneven door gaps, trim pieces. Build quality improved significantly from 2023. Fremont builds (5YJ) worse than Shanghai (LRW). Cosmetic only. Symptoms: Uneven gaps around hatch, doors, panels, wind noise from poor fitment | Low | |
| Thin paint — chips to bare metal Same paint issue as Model 3. 71-106 microns vs 110-150 industry standard. The taller Model Y front collects more road debris. PPF strongly recommended for front surfaces. Symptoms: Excessive stone chips, paint to bare metal, visible orange peel from 25,000 km | High | |
| B-pillar camera condensation — disables Autopilot features Moisture builds up inside B-pillar camera housings, fogging the lens. Disables Auto Lane Change, Blind Spot Detection, and Lane Departure Warning until it clears. Tesla removed the original Gore-Tex vent patches from camera housings. NHTSA TSB recommends removing and discarding remaining gore patches to improve airflow. Warranty replacement of both cameras if persistent. Symptoms: Foggy B-pillar camera images, Autopilot features temporarily unavailable, camera blocked alert on screen | Low | |
| Door seal gaps — excessive wind noise at highway speed Factory door seals leave 5-6 mm gaps around doors and pillars, generating noticeable wind noise above 60 mph. The large glass roof amplifies cabin noise. Aftermarket seal kits reduce cabin noise by 7-8 dB. Tesla's minimalist door frame design prioritizes aesthetics over sealing. Not a defect per se but a common owner complaint across all production years. Symptoms: Whistling at highway speed, wind noise around A-pillar and door frame, road noise louder than comparable SUVs | Low | |
| Taillight condensation — 2020-2022 builds Water collects inside taillight housings. Tesla says minor condensation is normal, should clear in 24-48h. Standing water warrants warranty replacement. Some 2020 builds required replacement. Symptoms: Visible water droplets or fog inside taillight lens from 8,000 km | Low |
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Known Problems and Issues +
A total of 43 weaknesses have been documented for the Tesla Model Y Phase 1 (2020–2024) — 13 engine-related and 30 vehicle-related. Typical issues affect Body, HVAC, Suspension, Electronics.
Model Y (ModelY-LR, 2020–2024) — Be Careful: 12V battery failure (2020-2021), Rear drive unit inverter failure, Drive unit bearing whine. Power: 384 PS.
Model Y (ModelY-Perf, 2020–2024) — Be Careful: 12V battery failure (2020-2021), Rear motor inverter failure, Drive unit bearing whine — earlier onset. Power: 456 PS.
Model Y (ModelY-SR, 2023–2026) — Be Careful: 12V battery failure (2020-2021), Rear drive unit inverter failure, Drive unit bearing whine. Power: 299 PS.
What to watch out for with the Tesla Model Y? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Tesla Model Y Phase 1 have? +
What should I look for when buying a used Tesla Model Y Phase 1? +
Which engine is recommended? +
Which Tesla Model Y Phase 1 engine is the most fun? +
Is the Tesla Model Y Phase 1 worth buying used? +
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Last updated: February 2026 · All information without guarantee