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moderate Owners of the 2019 Tesla Model 3 have filed 17 NHTSA complaints about the seatbelts at roughly $500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See seatbelts across all vehicles →
| Model year | seatbelts complaints |
|---|---|
| 2018 Model 3 | 49 |
| 2019 Model 3 (this page) | 17 |
| 2020 Model 3 | 11 |
| 2021 Model 3 | 10 |
| 2022 Model 3 | 9 |
| 2023 Model 3 | 7 |
Among the 6 model years of Tesla Model 3 in our records for seatbelts problems, this one ranks #2 by owner-complaint volume.
All 3 active seatbelts recalls on this vehicle land at critical or severe — none classified moderate.
An improperly attached fastener may prevent the seat belt system from performing as designed, increasing the risk of injury.
An incorrectly reassembled seat belt anchor can impair the performance of the seat belt during a crash, increasing the risk of injury.
A seat belt warning system that fails to alert occupants of an unbelted seat belt can increase the risk of injury during a crash.
Owners report two main seatbelt failure patterns on 2019 Tesla Model 3s. The first is physical buckle failure—a rear passenger seatbelt buckle that won't latch, and a driver-side lap pretensioner harness with a broken or severed internal wire that prevents the buckle from accepting the belt. Both manifest as parts that simply don't work.
The second pattern is electrical: owners receive recurring fault messages (most commonly RCM_a021, often reading "Front left/passenger safety restraint system fault") that appear intermittently or constantly. Owners report the faults appear or disappear based on seat position adjustment, and some say the warnings vanish temporarily if full self-driving is enabled. One owner physically opened a connector and found an internal wire cut from normal seat adjustment and bending. A service technician confirmed one failure involved a broken pretensioner wire; another found low voltage integrity in the harness circuit—both manufacturing defects, not collision damage.
Repair costs when out of warranty have ranged from $100–$700. Tesla has applied warranty coverage inconsistently; one owner's repair was initially invoiced at cost despite being a safety issue, while another's identical fault was covered under warranty in 2021 but reappeared later when out of warranty. Owners consistently state no recall has been issued despite the repeated pattern.
Same Tesla Model 3 seatbelts reports on nearby years: 2018 · 2020
Seatbelt buckles unable to accept or retain the lap belt. Owner reports the buckle simply will not insert the safety belt; another reports a rear passenger buckle abruptly stopped latching with no debris present.
When: Within first 8,000 miles on one vehicle; abrupt onset on another
Symptoms owners cite: Unable to insert belt into buckle; Buckle will not latch; No physical damage or debris visible
Repairs/costs cited: One owner was initially invoiced $100+ for repair; no repair outcome detailed for rear buckle failure
Recalls/TSBs owners mention: Tesla service estimated repair cost; no recall issued. Bumper-to-bumper and safety-component warranty should apply but was not initially honored in at least one case.
A wire inside the front seat harness connected to the lap pretensioner squib is broken or severed, causing the safety restraint system to fail. One owner opened the connector and found the wire cut; another had a service technician confirm a broken harness wire. The failure occurs from normal seat adjustment cycles bending the wire until it breaks.
When: Less than 5 years of ownership; one vehicle at 27,000 miles
Symptoms owners cite: Seat belt pretensioner will not deploy correctly; Safety restraint system fault message appears; Fault may clear temporarily when seat position is adjusted; No warning signs before first alert in some cases
Codes mentioned: RCM_a021
Repairs/costs cited: Left front row seat harness assembly replacement required; one service estimate was $700. One owner self-repaired by restripping and soldering the cut wire, restoring function.
Recalls/TSBs owners mention: No recall issued. Tesla initially invoiced one owner $100+ despite safety classification. Some repairs covered under warranty; others denied out-of-warranty.
Electrical continuity failure in the front seat harness circuit, separate from physical wire fracture. Diagnostic testing revealed low voltage integrity in the lap belt circuit—a manufacturing defect, not collision damage.
When: July 2024
Symptoms owners cite: Driver-side seat belt moves freely with no restraint; Safety restraint system fault message displayed; Seat belt fails to provide restraint in crash scenario
Repairs/costs cited: Diagnostic test charged $235. Left front row seat harness assembly replacement performed by Rocklin Tesla.
Recalls/TSBs owners mention: No recall issued despite multiple reports on online Tesla forums. Tesla does not acknowledge as recall.
Recurring electrical fault messages for the front passenger and driver-side safety restraint systems that appear and disappear without clear trigger or physical defect. Some messages are linked to seat position changes; others are constant or repeat at intervals. One owner reports the message vanishes only when full self-driving is enabled.
When: January–March 2024; June–December 2023; occurring at 5+ year intervals in some cases
Symptoms owners cite: Recurring or constant 'Front left/passenger safety restraint system fault' message on display; Message appears/disappears based on seat position; Message may clear temporarily if full self-driving is enabled; Warning repeats every 15 minutes in one case; No visible physical damage to seat belt or harness
Codes mentioned: RCM_a021
Repairs/costs cited: Tesla service invoiced repairs as 'seat repair' or 'safety restraint system service.' Costs ranged from $100 to in-warranty coverage. One repair was performed in 2021, but the identical fault reappeared out of warranty.
Recalls/TSBs owners mention: Tesla has not issued a recall. Service technicians have attributed faults to 'software problems' without providing explanation. Repair coverage has been inconsistent—some covered under warranty, others denied when out of warranty.
A rattle or noise from the seatbelt assembly during driving. One owner reports this issue alongside other squeaks and rattles on the vehicle.
When: During normal driving
Symptoms owners cite: Audible rattle from seatbelt
Repairs/costs cited: Tesla service indicated this as a known issue (bulletin available) and charged to verify, even under warranty, rather than performing covered repair.
Recalls/TSBs owners mention: Tesla indicated a technical bulletin exists for this issue but did not provide repair at no charge despite warranty coverage.
Synthesized from 17 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
It's a documented issue but not catastrophic. 17 complaints have been filed. Repairs average $500 and most owners catch it before it causes a breakdown.
Based on the 17 complaints filed, seatbelts issues most often appear around 8,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $500 for seatbelts repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 3 active recall(s) cover seatbelts issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.