AI Damage2021 Volkswagen Jetta: common problems
Owners of the 2021 Volkswagen Jetta filed 70 complaints with NHTSA, most often about service brakes and electrical system. The maker issued 473 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 70
- involving a crash
- 3
- Technical service bulletins (TSB)
- 473
What fails most often
- 1 Service brakes 37% of all complaints
- 2 Electrical system 19% of all complaints
- 3 Fuel/propulsion system 14% of all complaints
- 4 Forward collision avoidance 13% of all complaints
- 5 Engine 7% of all complaints
- 6 Air bags 7% of all complaints
- 7 Visibility 6% of all complaints
- 8 Lane departure 6% of all complaints
- Service brakes: 26 complaints (37% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 20.
- Electrical system: 13 complaints (19% of all); manufacturer bulletins for this component: 105.
- Fuel/propulsion system: 10 complaints (14% of all); manufacturer bulletins for this component: 3.
- Forward collision avoidance: 9 complaints (13% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 6.
- Engine: 5 complaints (7% of all); manufacturer bulletins for this component: 60.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 1.4 L · petrol · turbo · 4 cyl
- 2 L · petrol · turbo · 4 cyl
- automatic, 8-speed
- dual-clutch (DCT), 7-speed
- manual, 6-speednamed in 3 complaints
Drive: FWD
Symptoms owners describe
How many of the 70 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 26 | 1 | 20 |
| Electrical system | 13 | 0 | 105 |
| Fuel/propulsion system | 10 | 0 | 3 |
| Forward collision avoidance | 9 | 1 | 6 |
| Engine | 5 | 0 | 60 |
| Air bags | 5 | 2 | 5 |
| Visibility | 4 | 0 | 13 |
| Lane departure | 4 | 0 | 1 |
| Steering | 3 | 0 | 3 |
| Seat belts | 3 | 1 | 2 |
| Powertrain | 2 | 0 | 26 |
| Suspension | 1 | 0 | 22 |
| Exterior lighting | 1 | 0 | 9 |
| Seats | 1 | 0 | 6 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Additionally, no forward collision warning or audible/visual alert was provided prior to impact. A red warning indicator illuminated immediately before the collision; however, there was insufficient time to take additional evasive action. As a result, my vehicle rear-ended the vehicle stopped in front of me.
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EPC light comes on and vehicle starts losing power while driving, you lose all acceleration. Check engine light has also illuminated I have taken in to have repairs done on this same issue 4 times in a span of owing this car for 7 months, this vehicle has become unreliable and a safety hazard while driving.
SAFETY CONCERN: Premature rear brake failure at such low mileage presents a serious safety hazard. Degraded braking performance increases stopping distances and reduces driver control, particularly in emergency situations.
2mm remaining friction material, and brake rotors are overheated & scored. Not knowing that my rear brakes had worn down to this level in 14,000 miles put myself and other drivers at risk. I had no warning nor did I experience any symptoms in my brakes until I took it in for regular service.
Shifting vehicle into reverse, turns of back up camera, then shifting into drive camera remains on for a set period of time, if shifted back into reverse as camera turns off, camera will not come back on. Android Auto was being used.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 732 of 2,102 model years in the NHTSA data (top 35% most complained about).
On average one model year of the Jetta has 99 complaints (12 years in the data). This year has 70, below average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Suggested fuel additive
- This special notice is to inform dealers to return the parts listed if it meets the criteria provided
- This is a notice for software changes with the ODIS diagnostic program to correct the communication during…
This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: Part number 3Q0-959-435N software…
- Repair or Replace Information
- Replacement instruction
- Differences between a leak and seepage
- Permission to change Daily Order upgraded to RED Order
- This is a notice for software changes with the ODIS diagnostic program to correct the communication during…
This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: DA 0019 - Hotfix 12-V battery…
- Over-the-Air Software Update Dealer Recovery Process
- MIB3 Recovery Solution
- Oil Consumption Measurement and Electronic Oil Consumption Measurement
- Emergency Call Module - J949- replacement part must be programmed to latest software
NHTSA lists 473 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Volkswagen Jetta?
Owner complaints to NHTSA most often mention: service brakes, electrical system, fuel/propulsion system. Total complaints: 70. The most frequent symptoms in complaint texts: warning lights, check engine (23%), driver assists: adaptive cruise, lane keeping (7%), brake failure (6%).
How many service bulletins (TSB) were issued for the 2021 Volkswagen Jetta?
NHTSA lists 473 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Volkswagen Jetta from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.