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Rivian Vehicle Systems Incident Report: A Synthesis of Customer Complaints

1.0 Introduction

This incident report provides a structured synthesis and categorization of customer complaints filed for the Rivian EDV (Electric Delivery Van), R1S, and R1T models. The purpose of this document is to furnish a clear, data-driven overview of recurring safety, quality, and performance issues as reported by vehicle operators and owners. The analysis and findings presented herein are based exclusively on the provided source context, aiming to identify patterns and highlight areas of potential concern across Rivian's vehicle lineup.

2.0 Rivian Electric Delivery Van (EDV) Incident Analysis

This analysis focuses on issues specific to Rivian's commercial delivery vehicle, the EDV. The reported incidents primarily concern component durability and fundamental safety equipment, which have direct implications for fleet operations, driver safety, and overall operational reliability. Failures noted in this section can lead to vehicle downtime and significant safety risks in the field.

2.1 System: AIR BAGS

Reported Frequency Complaint Count
Unique 2

The primary complaint regarding the EDV's airbag system, filed under two separate categories, concerns the absence of a passenger-side airbag. This is identified as a significant safety issue in the context of its use for on-the-road driver training, where a trainer is required to occupy the passenger "jump seat" for extended periods. The lack of this fundamental safety feature exposes trainers to increased risk in the event of a collision.

Representative Complaint(s):

• [1875361] The new Amazon Rivian EDV vans lack passenger-side airbags. Amazon is requiring Driver Trainers to sit in the passenger "jump seat" for 3+ hours a day for on-the-road training tests.
• [1875362] The new Amazon Rivian EDV vans lack passenger-side airbags. Amazon is requiring Driver Trainers to sit in the passenger "jump seat" for 3+ hours a day for on-the-road training tests.

2.2 System: Pervasive Shifter Mechanism Failure

Reported Frequency Complaint Count
Unique 4

Analysis of the source data reveals that a single, critical mechanical failure—breakage of the gear shifter lever—is so pervasive that it has been reported across three different system categories: POWER TRAIN, STEERING, and VEHICLE SPEED CONTROL. This single point of failure strands the vehicle by preventing the driver from selecting a gear. While only four formal complaints for this issue were filed, the content of these complaints describes a widespread field failure. One fleet manager overseeing 36 vehicles reports a failure rate of at least 50%, indicating the 'Unique' classification in the data source significantly underrepresents the real-world operational impact and safety risk. The component is consistently described as being constructed from "inferior materials" with an "insufficiently designed" mechanism.

Representative Complaint(s):

• [1992393] We have a fleet of these Rivian delivery vehicles and they all have the same issue: the shift lever is made of inferior materials and insufficiently designed. The operator manipulates the shift lever to place the vehicle in drive and the lever breaks off.
• [2049062] I lease 36 of these vehicles and at least 50% have had issues with the Shifter. The shifter (putting the vehicle into D, R, or any other position) will fail unexpectedly.
• [1994227] The vehicle shifter tends to easily break and wiggle, not allowing the vehicle to go on drive or reverse. SAFETY concern, Rivian charges around $600+ every time you have this consistent problem.
• [1994228] The vehicle shifter tends to easily break and wiggle, not allowing the vehicle to go on drive or reverse. SAFETY concern, Rivian charges around $600+ every time you have this consistent problem.

The following section transitions the analysis to Rivian's consumer SUV, the R1S.

3.0 Rivian R1S Incident Analysis

This section analyzes complaints related to the Rivian R1S, the company's seven-passenger consumer SUV. The issues reported by owners are critical to understand, as they directly impact consumer safety, brand perception, and potential regulatory scrutiny. The findings highlight significant concerns with foundational safety systems, software stability, and vehicle control.

3.1 System: AIR BAGS

Reported Frequency Complaint Count
High 20

A high volume of complaints indicates a systemic issue with the R1S front passenger occupancy classification system. The system consistently fails to detect adult passengers, particularly those with a lighter weight (e.g., 100-150 lbs), causing the passenger airbag to be disabled. Reports describe this failure as intermittent and unpredictable, sometimes depending on the passenger's posture. This presents a critical safety risk, as the airbag may not deploy in a collision. The issue is reported to occur with passengers weighing up to 425 lbs in one instance, suggesting a broader calibration or hardware problem beyond a simple weight threshold.

Representative Complaint(s):

• [1951231] Vehicle routinely (>90% of the time) fails to detect occupancy of front passenger seat resulting in disabled airbags and other related safety systems. Our particular vehicle experiences the issue with passengers ranging from 150-425lbs resulting in a significant safety concern.
• [1952542] A passenger of lighter weight will not trigger the passenger seat’s weight sensor, rendering the passenger side airbag disabled. The passenger must sit up perfectly straight and center their weight on the center of the seat for them to be properly detected.
• [1950258] Passenger seat does not detect light to normal weight/BMI adult buckled in and disables the front passenger airbag. Vehicle service state it is working as intended.

3.2 System: ELECTRICAL SYSTEM

Reported Frequency Complaint Count
Medium 13

Complaints related to the R1S electrical system are varied and severe. The data reveals a recurring pattern of failed over-the-air (OTA) software updates causing critical system malfunctions, which have reportedly "bricked" vehicles by rendering infotainment screens, driver displays, and essential safety features (lights, wipers) non-functional. Other reports describe sudden and complete vehicle shutdowns while driving, abrupt shifting into park while in motion, and incidents of unintended acceleration. Additionally, "Critical Battery Issue" warnings have been reported, creating significant safety and reliability concerns.

Representative Complaint(s):

• [1942583] Rivian pushed a software update to owners on the evening of 11/13/2023. This update made the driver information and infotainment screens non-functional and also disabled all driver saftey aids and any ability to turn exterior lights or windshield wipers off or on.
• [2003441] Vehicle stopped working while driving. It completely shut off even though I had 250 miles of range available.
• [1925232] The car automatically, abruptly, and without warning shift into park as I slowed down at a stop sign and stalled in the middle of the road. It did not shift into Park for 30-35 mins and even after doing hard and soft resets while on the phone with service.

3.3 System: SEATS

Reported Frequency Complaint Count
Medium 16

The complaints regarding the R1S seats are directly and consistently linked to the airbag system's failure to detect passengers. Owners report that when a passenger is seated, the vehicle often fails to recognize their presence, which not only disables the airbag but also deactivates passenger-side climate controls. This issue is reported across a wide range of adult passenger weights, from 100 lbs to over 140 lbs, indicating a persistent problem with the seat's weight sensor calibration or functionality.

Representative Complaint(s):

• [1977218] Every time my wife gets into the front passenger seat the sensor in the seat doesn’t recognize her sitting down and doesn’t active the passenger side airbag also the climate control is inactive. Rivian claims that there is a seat weight limit but my wife weighs 145 lbs.
• [1952974] Intermittently does not register a passenger in the passenger seat (even with a seatbelt on and seat upright in a normal position) such that the airbags are turned off and climate controls are not activated. Passenger weighs more than 120 lbs.
• [1911110] When the passenger seat is occupied, we intermittently get a message that the airbag is off (and the heating/ac controls for the passenger side go away). This occurred when the seat was occupied by two of my sons (one 6'1", 145 lbs and the other 5'9" and 155 lbs).

3.4 System: FORWARD COLLISION AVOIDANCE & DRIVER ASSIST SYSTEMS

Reported Frequency Complaint Count
Low to Emerging 14

Analysis of the R1S driver assist system complaints indicates a systemic instability, manifesting as sudden deceleration and software-induced failures. This issue combines complaints classified as 'Low' and 'Emerging,' collectively pointing to a pattern of instability in the vehicle's advanced driver-assistance systems. Reports describe sudden, unexpected vehicle deceleration while using adaptive cruise control on the highway. A failed software update is cited as a cause for completely disabling safety features. Other incidents involve sensor failures, including radars that required replacement shortly after vehicle delivery, and instances where the vehicle's sensors failed to detect objects. Several owners also reported unintended acceleration, leading to collisions while parking or at slow speeds.

Representative Complaint(s):

• [2067910] I own a R1S and the vehicle is less than 900miles old (21st day of ownership). When driving today on the highway at 75miles - the vehicle suddenly decelerated to 51 miles.
• [1942543] Rivian released a software update that bricked my vehicle. It is drivable but the infotainment screen and safety features are inaccessible.
• [1947008] As I got into the left turn lane and was straightening up behind the person in front of me at almost a dead stop the R1S lunged forward and accelerated at a high rate of speed hitting the car in front of me...

3.5 System: POWER TRAIN

Reported Frequency Complaint Count
Low 5

Powertrain issues reported for the R1S include sudden and complete loss of motive power while driving, leaving the vehicle stranded in the middle of a busy road. One report of a non-functional drive stalk in a new 2025 model with only 2,400 miles highlights that critical failures are occurring on the newest vehicles. This issue temporarily prevented gear selection until a system reboot was performed. A separate mechanical concern involves front wheel hub bolts reportedly backing out on their own, presenting a significant safety risk of wheel detachment.

Representative Complaint(s):

• [1930375] On the morning of 9/14/2023 while commuting to work, my one month old, 2100 mile R1S ground to a halt while driving normally in All-Purpose Mode at about 15mph in the middle of a busy road. There were zero warning signs or noticeable weirdness with the vehicle before this happened.
• [2047486] Front wheel hub bolts back out on their own. This is a huge safety problem and needs a public recall.
• [2054990] On January 9, I was driving my new 2025 Rivian R1S (approx. 2,400 miles) when it suddenly displayed “Drive stalk not working.

3.6 System: SERVICE BRAKES

Reported Frequency Complaint Count
Low 7

Service brake complaints are varied. Multiple reports describe incidents of unintended acceleration where the vehicle lunged forward despite the driver's foot being on the brake, resulting in collisions. Another safety concern involves the regenerative braking system unexpectedly disengaging, causing the vehicle to coast when the driver expected it to slow down, requiring a sudden application of the physical brakes to avoid an accident. One report details the parking brake disengaging on its own, allowing the vehicle to roll down a driveway.

Representative Complaint(s):

• [1940412] Stopped at McDonalds drive through waiting to order with my foot on the brake and the vehicle lunged forward rearending the car stopped 5 feet in front of me ordering. I was trying to brake but it kept pushing the car in front of me then careened to the right hitting a sign and a parked car.
• [1943816] I was at 44% state of charge and the ambient temp was around 65 F. While taking a turn at an intersection, the vehicle reduced regenerative braking(regen bar on the vehicle was greyed out) had I had quickly break as the car started to coast.
• [1939573] ...the car threw a bunch of error messages related to servicing 12 V battery system and dis-engaged the parking brake that lead the vehicle to start rolling down the driveway.

3.7 System: STEERING

Reported Frequency Complaint Count
Low 6

Steering system complaints range from mechanical defects to unpredictable vehicle behavior. One owner discovered loose steering rack bolts, which caused inconsistent and unstable steering. Another report details a steering column defect where the wheel drops unexpectedly when even light weight is applied. Other complaints describe the vehicle lunging to the right without driver input and severe steering wheel vibration at highway speeds, causing driver fatigue and discomfort.

Representative Complaint(s):

• [1878086] Steering wheel was angled when the car was going straight Vehicle felt unstable going into turns and would pull toward the center line in the road Upon inspecting underneath the vehicle, the steering rack bolts were loose and the rack moving side to side making the steering inconsistent and loose.
• [2069448] I am experiencing an ongoing and unresolved steering column defect in my 2023 Rivian R1S, which creates a serious safety risk while driving. Issue Details: The steering wheel drops unexpectedly when weight is applied, even lightly.
• [1930706] Vehicle lunged to the right without any driver input. Damaged rim and wheel and could have hurt someone.

3.8 System: SUSPENSION

Reported Frequency Complaint Count
Emerging 4

Suspension issues include recurring "service suspension" error codes appearing shortly after vehicle purchase, particularly when driving over bumps. A more severe mechanical issue involves a front driver-side hub bolt backing out, which rendered the vehicle undrivable due to loud grinding and instability. These complaints point to potential quality control issues in critical suspension and wheel assembly components.

Representative Complaint(s):

• [2077542] Front driver wheel had a hub bolt back out rendering the vehicle unable to drive. The car made a loud grinding noise and was unsteady.
• [1936327] Immediately after purchasing the vehicle, I got error codes thrown to service the suspension while driving to my house, specifically at 15-20mph over traffic calming bumps. This fault cleared immediately the first few times.

3.9 System: UNKNOWN OR OTHER

Reported Frequency Complaint Count
Medium 15

A significant number of complaints in this category focus on the vehicle's horn being insufficiently loud. Multiple owners state that other drivers and pedestrians cannot hear it, presenting a clear safety risk in emergency situations. This category also includes further reports of failed OTA software updates that left vehicle screens and controls non-functional, as well as incidents of the vehicle abruptly shifting into park while moving and unexpected lunges without driver input.

Representative Complaint(s):

• [1948883] The single horn on this vehicle is incredibly weak/not loud enough and has almost led to two separate incidents in my 3 months of ownership due to other drivers not being able to hear my horn.
• [1964912] Horn is too weak and inaudible when there’s other noise around or if someone is listening to music in their car. Other vehicles don’t seem to hear the horn in case of emergencies.
• [1942671] OTA update 2023. 42 failed to install and left car without working screens, the only way to really manage the vehicle's settings.

3.10 System: VEHICLE SPEED CONTROL

Reported Frequency Complaint Count
Low 5

Reports under this category describe dangerous and unpredictable vehicle behavior. Multiple owners experienced unintended acceleration, where the vehicle lunged forward at a high rate of speed while parking or at a near-stop, resulting in collisions. Conversely, one driver reported sudden, unexplained deceleration from 75 mph to 51 mph while driving on the highway, creating a significant rear-end collision risk.

Representative Complaint(s):

• [1947009] ...at almost a dead stop the R1S lunged forward and accelerated at a high rate of speed hitting the car in front of me (speed control issue already known on the R1T).
• [2017999] I pulled into a parking space and as I placed my foot on the brake the car launched forward.
• [2067908] When driving today on the highway at 75miles - the vehicle suddenly decelerated to 51 miles.

3.11 Other Reported Issues

This subsection summarizes and groups related low-frequency complaints across various other systems.

• Wheel & Suspension Assembly: Reports under both WHEELS (Unique) and SUSPENSION (Emerging) point to a potential quality control issue with hub bolt assembly, as multiple complaints describe a "hub bolt back out" causing vehicle instability. Another report under Wheels describes motor attachment bolts backing out.
• System Failures Post Software Update: A common thread among EXTERIOR LIGHTING (Unique) and LANE DEPARTURE (Emerging) complaints is the disabling of driver aids and lights following a failed software update, reinforcing the electrical system instability theme.
• Battery and Propulsion Faults: Complaints filed under ENGINE (Unique) and FUEL/PROPULSION SYSTEM (Unique) detail "Critical Battery Issue" warnings, non-functional drive stalks, and thermal system failures that can disable the vehicle.
• Child Seat Design: Three related complaints across Carry Handle, Chest Clip, and Insert (all Unique) describe a child seat causing an improper and potentially unsafe chin-to-chest position for an infant.
• Sensor and Warning System Malfunctions: Reports under LANE DEPARTURE (Emerging), TIRES (Unique), and TIRES:PRESSURE MONITORING (Unique) cite failures of the low tire pressure warning system. Complaints under VISIBILITY/WIPER (Unique) include an inoperable backup camera.
• SEAT BELTS (Low): Reports are linked to the passenger detection failure, with one noting the system also fails for larger passengers or those seated far forward.

The subsequent section will detail reported issues for the Rivian R1T pickup truck.

4.0 Rivian R1T Incident Analysis

This analysis details the reported issues for the Rivian R1T pickup truck. The data reveals several parallels with the R1S platform, particularly concerning the airbag passenger detection system and software instability, while also highlighting unique concerns relevant to this specific model.

4.1 System: AIR BAGS

Reported Frequency Complaint Count
Medium 18

Similar to the R1S, the R1T exhibits a pattern of complaints related to the front passenger airbag system failing to activate. The issue is consistently attributed to the occupancy sensor's high weight threshold, which owners report is set at or above 120 lbs. This results in the airbag being disabled for many lighter-weight adults. The failure is described as intermittent, sometimes deactivating mid-drive if the passenger shifts their position, creating a significant and unpredictable safety hazard.

Representative Complaint(s):

• [1879467] The Rivian front passenger seat sensor is set to detect passengers that are >=120 pounds (according to the rivian service center). This setting is WAY too high and prevents the air bags from activating when my 5’5” daughter who weighs 110 pounds sits in the front seat.
• [1934084] The passenger airbag is not engaged for anyone under 150lbs, which includes my wife, 16 year old daughter, 14 year old son and 13 year old daughter. Seems a dangerous setting to have such a high weight threshhold for Rivian and they keep responding to owners that all is functioning normal.
• [1950285] I've witnessed on multiple occasions where the 'Passenger Air Bag Off' warning comes on while my 120-125lb husband is sitting in the seat. If he shifts his seating position it comes back on, but it doesn't seem appropriate that the air bag would disable mid-drive while his seat belt had been buckled and door closed the entire time.

4.2 System: ELECTRICAL SYSTEM

Reported Frequency Complaint Count
Low 6

Complaints regarding the R1T's electrical system point to critical failures that compromise vehicle safety and operation. Reports include spontaneous blackouts of the digital instrument cluster and infotainment screen while driving, leaving the driver without essential information. More severe incidents involve the truck suddenly stopping without warning in heavy traffic and receiving a "Critical Battery Issue" warning shortly after taking delivery. Another event describes multiple safety systems (collision detection, regenerative braking) shutting down simultaneously at highway speeds.

Representative Complaint(s):

• [1838652] When driving and when parked the digital instrument cluster and infotainment screen (2 screen) can spontaneously turn off. This results in the entire instrument cluster being inaccessible while driving.
• [1848352] Truck without warning, suddenly stopped and I was on one of the busiest streets in Los Angeles at an intersection, blocking a large amount of traffic and too dangerous to get out due to cars rapidly passing.
• [2076708] I Was driving down highway and receive a fe messages in quick order -front sensors off, front camera off, collision detection off, regenerative braking off - started moving toward right shoulder prior to pulling off - car lost speed at high rate putting me in jeopardy of being rear ended.

4.3 System: FORWARD COLLISION AVOIDANCE & DRIVER ASSIST SYSTEMS

Reported Frequency Complaint Count
Low to Unique 16

The driver assist systems in the R1T are the subject of complaints involving erratic and dangerous behavior. This consolidated analysis combines reports from four distinct sub-categories, revealing a pattern of instability. A key issue is "phantom braking," where the adaptive cruise control (ACC) suddenly brakes for non-existent obstacles, especially on curves or rural roads. The ACC has also been reported to lose track of the vehicle ahead in bends and accelerate unexpectedly. One of the most severe reports describes the vehicle surging forward at high speed from a parked position, causing a significant collision. Software updates are again cited as a source of system-wide failure, disabling these safety features entirely.

Representative Complaint(s):

• [1929729] ACC phantom brakes on highways causing dangerous situations with vehicles following behind and also causing driver panic events particularly when phantom braking occurs most commonly on bends of highways or on single lane highways where it reacts to oncoming traffic.
• [1929731] Loses sight of vehicle ahead and will accelerate to set speed ignoring vehicle in front when in bends. It only seems to track vehicles in a straight line of sight ahead and not accommodate for steering.
• [1868756] While preparing to pull out of a parallel street parking space in my R1T with a car 3 feet in front of me, I stepped on the brake to engage Drive from Park. On releasing the brake, before stepping on the accelerator, the R1T surged at a high rate of speed hitting the car straight on...

4.4 System: POWER TRAIN

Reported Frequency Complaint Count
Low 5

Powertrain complaints for the R1T describe sudden and hazardous failures. Incidents include a complete loss of motive power, causing the truck to stop abruptly in a busy intersection. Another report details a sudden loss of regenerative braking at highway speed, nearly causing an accident as the driver had to switch unexpectedly to the physical brakes. A "Drive Fault" message has also been reported, which was accompanied by a loss of power and brake function, requiring increased effort to stop the vehicle.

Representative Complaint(s):

• [1993656] The contact owns a 2024 Rivian R1T. The contact stated that while driving at an undisclosed speed with the cruise control activated, the "Drive Fault," message was displayed after which the vehicle lost motive power and the contact became aware that the brakes were not functioning properly, requiring increased effort to bring the vehicle to a complete stop.
• [1960284] Was driving on the highway in the left lane at roughly 80 mph and suddenly lost regenerative braking and almost got into an accident not realizing I had to use my physical brakes to slow down. Truck entered turtle mode and was able to make it safely over and back home.
• [1848354] Truck without warning, suddenly stopped and I was on one of the busiest streets in Los Angeles at an intersection, blocking a large amount of traffic and too dangerous to get out due to cars rapidly passing.

4.5 System: SERVICE BRAKES

Reported Frequency Complaint Count
Low 7

Reports on the R1T's service brakes highlight several safety concerns. Multiple owners describe their parked vehicles sliding down sloped driveways, even in only slightly icy or snowy conditions, and crashing into their houses. One incident involved a catastrophic failure of a rear brake caliper after exiting a freeway. Other complaints detail failures of traction control and anti-lock braking systems when in high regenerative braking mode, making the vehicle uncontrollable in low-traction situations.

Representative Complaint(s):

• [1968547] The vehicle was parked on a 8 degree slope in the driveway with approximately 2 inches of snow on the drive way. Within thirty minutes of the vehicle being parked the truck slide down the driveway and crashed into the house.
• [1985932] The components that failed are Traction Control, Stability controls, and Anti-Lock Braking while in high regeneration mode. Vehicle can easily become incontrollable in low traction situations (in high regeneration mode) that is a danger to the driver and others on the road.
• [1930551] On 9/23/23 at approximately 4:10pm, my Rivian R1T suffered a catastrophic failure of the left rear brake.

4.6 System: VEHICLE SPEED CONTROL

Reported Frequency Complaint Count
Low 5

Vehicle speed control issues mirror some of the severe powertrain and brake system failures. Reports describe a loss of system controls at highway speeds, forcing the vehicle into "turtle mode" after a high-voltage battery failure. Another complaint details an issue where setting cruise control while towing causes the vehicle to accelerate to the posted speed limit rather than the current speed of travel, creating a dangerous situation. These events point to instability in how the vehicle manages its speed under various conditions.

Representative Complaint(s):

• [1968105] When towing a trailer with my Rivian R1T on interstate 75 I set my cruise control while going with the speed of traffic at approximately 60 mph. Instead of cruise control setting at the speed I was traveling, it instead sets at the posted speed limit.
• [1940163] High Voltage battery failed twice. At highway speeds and during failure vehicle resorts to turtle mode.
• [2076706] ...car lost speed at high rate putting me in jeopardy of being rear ended.

4.7 Other Reported Issues

This subsection summarizes and groups related low-frequency complaints across various other R1T systems.

• Mechanical Integrity & Quality Control: A report under WHEELS (Unique) describes a wheel hub coming loose while driving, which points to a potential manufacturing or component quality issue. Similar concerns are raised under STEERING (Unique) with a bent and snapped inner tie rod, under SEAT BELTS (Unique) with a rear seatbelt not bolted down at the factory, and under STRUCTURE:BODY (Unique) with misaligned doors.
• System Failures & Unintended Acceleration: Complaints under BACK OVER PREVENTION (Emerging), ENGINE (Emerging), and FUEL/PROPULSION SYSTEM (Unique) describe incidents of unintended forward acceleration and sudden, complete vehicle stops in traffic.
• Basic Equipment Malfunctions: Reports under UNKNOWN OR OTHER (Low) and EQUIPMENT (Unique) cite weak or non-working horns. EXTERIOR LIGHTING (Unique) complaints note that headlights are prone to snow buildup due to a lack of a defrost mechanism, reducing visibility.
• SEATS (Low): Complaints are tied to the passenger detection failure for the airbag system, with one report of a missing bolt attaching the seat to the truck.

The final section will analyze recurring themes and potential systemic issues across all three Rivian models.

5.0 Cross-Model Thematic Analysis

By analyzing recurring themes across the entire Rivian product line—from the commercial EDV to the consumer R1S and R1T—it is possible to identify potential systemic weaknesses in design, manufacturing, or software development. This cross-model perspective highlights the most pervasive and critical issues impacting vehicle safety and reliability.

5.1 Systemic Airbag System Deficiencies

A critical and consistent safety theme is the failure of the airbag systems, though the manifestation differs between commercial and consumer vehicles. In both the R1S and R1T, there is a high volume of reports detailing the failure of the front passenger occupancy sensor to detect adult passengers, particularly those under 150 lbs. This deactivates a crucial safety device and appears to be a systemic calibration or design flaw in consumer models. In contrast, the issue with the commercial EDV is more fundamental: the reported absence of a passenger-side airbag altogether, posing a direct risk to personnel required to ride in that seat for training purposes.

5.2 Software and Electrical System Instability

Instability within the software and electrical architecture is a significant concern across the R1S and R1T platforms. The data reveals a recurring pattern of over-the-air (OTA) software updates causing catastrophic system failures, rendering central screens inoperable and disabling essential functions like exterior lights, wipers, and advanced driver-assistance systems. Beyond updates, owners report spontaneous and dangerous events, including complete vehicle shutdowns while in motion, sudden blackouts of driver information displays, and critical battery warnings that compromise vehicle operation. These incidents suggest a foundational issue with software robustness and its integration with core vehicle hardware.

5.3 Powertrain and Control System Reliability

Failures within the powertrain and driver control systems represent another troubling cross-model theme, indicating a systemic failure of the fundamental driver-vehicle interface. For the EDV fleet, this manifests as a mechanical fragility, with numerous reports of the gear shifter breaking, which physically severs the driver's control over the vehicle and strands it. For the consumer R1S and R1T, the interface failure is rooted in software and electrical control issues, leading to sudden power loss, unintended acceleration, and "Drive Fault" errors. Whether through physical breakage or software malfunction, the reliability of core vehicle control is a significant and recurring concern.

These thematic issues point toward areas requiring comprehensive investigation and potential remediation.

6.0 Conclusion

This synthesis of customer complaints reveals several significant patterns of concern across the Rivian EDV, R1S, and R1T models. The most critical findings center on foundational safety systems and vehicle control. A widespread and high-frequency issue in the consumer R1S and R1T is the failure of the passenger airbag occupancy sensor to detect adult passengers, creating a severe safety risk. Furthermore, critical software and electrical system instability is a recurring theme, with reports of failed updates disabling essential vehicle functions and spontaneous shutdowns occurring during operation. Finally, powertrain and control system faults—ranging from the pervasive mechanical failure of shifters in the commercial EDV to sudden power loss and unintended acceleration in consumer models—underscore significant concerns regarding the reliability and safety of Rivian's vehicle platforms.