I was at a stoplight behind a Toyota Tacoma. I must have stopped around 8 feet behind it. I was not using FSD and I was not one-pedal driving. My foot was on the brake. I must have been at a complete stop for approximately 10 seconds when my Model 3 suddenly accelerated full throttle on its own and rear ended the Tacoma, directly hitting its trailer hitch, causing my car's driver-side airbags to…
2018 Tesla Model 3 cruise control problems
severe 60 complaints filed with NHTSA · avg repair $600 · see cruise control across all vehicles →
Failure mileage
Complaints
60
Recalls
0
Avg fix
$600
15crashes
3injuries
What stands out
Owners have filed 60 cruise control complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
The failure pattern owners describe
The 2018 Model 3's adaptive cruise control and autopilot features present the most consistent problem. Owners describe phantom braking—sudden hard stops from 65-70 mph down to 35-50 mph with no vehicle or obstruction ahead—happening repeatedly over years despite software updates. These events occur on highways near shadows, bridges, overpasses, and asphalt-to-concrete transitions. Owners fear rear-end collisions and many have stopped using cruise control altogether.
Unintended acceleration is a second major failure mode. The car accelerates at full throttle while parked or parking, brake pedal unresponsive, with documented crashes into storefronts, garages, poles, and other vehicles. Tesla has investigated but blamed user error despite owner insistence they never touched the accelerator. One vehicle was declared a total loss.
Autopilot steering quality is unreliable—it jerks the wheel toward oncoming traffic, makes unwanted lane changes, and brakes too late in traffic. Vision system limitations include failure to detect vehicles in blind spots, misreading speed limit and state route signs, and blowing through stop signs on newer FSD versions.
Additional problems include brake unresponsiveness during low-speed maneuvers, MCU (computer) failure during firmware updates disabling cameras and autopilot, and a design flaw in the gear stalk that can accidentally shift the car to neutral while driving. One owner reported the throttle responding erratically to light pedal input, and another lost power entirely on a freeway with no warning. These are not marginal complaints—owners file police reports and insurance claims, and safety feature failures repeat across multiple vehicles and years.
Same Tesla Model 3 cruise control reports on nearby years: 2019 · 2020 · 2021
Failure modes owners describe
Phantom Braking (Unexpected Hard Deceleration)
Car brakes abruptly and hard with no vehicle or obstruction ahead. Owners report loss of speed from 65-70 mph down to 35-50 mph or near-complete stops. Occurs on highways, freeways, and city streets. Often linked to shadows, overhead signs, bridges, lane markings, or concrete/asphalt transitions. Happens repeatedly over years despite software updates.
When: Highway/freeway speeds 65-75 mph; multiple instances per trip or per year since purchase (2018 onward)
Symptoms owners cite: Sudden hard braking with no vehicle ahead; Rapid deceleration from highway speed to 35-50 mph; No warning or reason apparent; Seatbelt tightens; jarring sensation; Risk of rear-end collision; Occurs in dry, overcast, and rainy conditions; Happens near bridges, overpasses, power lines, shadows, carpool signs
Repairs/costs cited: No repair found; Tesla service unable to identify cause; owners resort to disabling cruise control or autopilot
Recalls/TSBs owners mention: Software updates released claiming improvements but problem persists; NHTSA investigation referenced (2022.45.13 FSD beta update issued to address); Tesla engineers unable to provide cause
Unintended Acceleration (Sudden Full-Throttle Acceleration)
Vehicle accelerates aggressively without driver input while parked, parking, or at low speed. Occurs in driveways, parking lots, and parking spaces. Owner applies brake but car does not slow or stop. Some incidents involve crash into storefront, garage, poles, other vehicles, or nearby structures. Damage is severe in multiple cases.
When: While parking, in parking lots, low-speed maneuvers, residential driveways; occurs at speeds 5 mph to full acceleration
Symptoms owners cite: Sudden rapid acceleration without foot on accelerator; Brake pedal depressed but ineffective; Loss of vehicle control; High-rate acceleration while turning into parking space; Vehicle jerks or lurches forward unexpectedly; Wheels continue turning after collision
Repairs/costs cited: Police reports filed in several cases; property damage substantial (storefronts, garages, other vehicles); vehicle declared total loss in at least one case; Tesla claims user error
Recalls/TSBs owners mention: Tesla investigated and blamed user error; no root cause analysis provided to owners; NHTSA investigation requested by owners; no recall or TSB identified
Cruise Control Speed Hold Failure (Unintended Speed Change)
Cruise control fails to maintain set speed. Vehicle either slows dramatically with full regenerative braking or unexpectedly accelerates above set speed. Occurs after specific software updates (2019.40.2.1 mentioned). Speed display shows set speed while actual speed differs.
When: After software update 2019.40.2.1; highway speeds 60-65 mph; occurring January 2020 onward
Symptoms owners cite: Set speed display shows 65 mph but car slows to below 50 mph; Full regenerative braking applied despite level road and no traffic; Sudden acceleration to 75 mph when set to 67 mph; Occurs while turning onto surface street from stoplight; Uphill combined with regenerative braking makes it unsafe
Repairs/costs cited: Issue appeared after 2019.40.2.1 software update; no repair attempted; owner did not visit service center at time of report
Recalls/TSBs owners mention: No manufacturer response documented in narratives
Autopilot/FSD Steering Malfunction and Lane-Change Errors
Autopilot and Full Self-Driving mode make unsafe steering decisions, including jerking wheel toward oncoming traffic, making unwanted lane changes without driver request, misinterpreting road conditions, and failing to recognize obstacles. Vehicle sometimes cannot steer and disengages mid-freeway.
When: While using Autopilot or FSD on highways, freeways, city streets; ongoing since feature activation (2019 onward)
Symptoms owners cite: Violent jerk of steering wheel toward oncoming traffic; Unwanted lane changes without authorization; Misinterpretation of cracks as lane markers; FSD unexpectedly activated after software update without consent; Cannot cancel autopilot mid-freeway; message 'car can no longer auto steer'; Late braking when following vehicle; less than 1 car length reaction time
Repairs/costs cited: No repair documented; owners disable autopilot/FSD or avoid using it despite paying for feature
Recalls/TSBs owners mention: Multiple service requests; no fixes implemented
Speed Limit Sign Misinterpretation (FSD/Autopilot)
FSD and Autopilot misread speed limit signs and state route markers, causing incorrect speed settings. Confuses state route signs for speed limit signs, setting speed to 50 mph instead of proper speed limit. Vehicle then either goes too fast or hard-brakes to comply with misread limit.
When: While using FSD on highways and state routes; observed in Ohio and other locations; software version 12.3.6 mentioned
Symptoms owners cite: FSD reads state route sign as 50 mph speed limit; Actual speed limit is 25 mph but display shows 50 mph; Hard braking when correct speed limit sign appears; Risk of collision (either rear-end from hard brake or frontal from speeding)
Repairs/costs cited: No repair noted; issue persists with current FSD version
Recalls/TSBs owners mention: No response documented in narratives
Stop Sign and Traffic Signal Non-Compliance (FSD)
FSD blows through stop signs and doesn't slow in advance of lower speed limit signs. Vehicle continues at highway speed past stop sign; doesn't begin slowing until after passing lower speed limit sign instead of before.
When: While using FSD on city streets and highways; version 2022.45.13 and later
Symptoms owners cite: Fails to stop at stop sign; accelerates through it; Continues at 45 mph past 35 mph speed limit sign; only slows 200 feet after sign; Illegal speed maintenance in residential areas
Repairs/costs cited: No repair noted
Recalls/TSBs owners mention: Released FSD beta version 2022.45.13 to comply with NHTSA recall, but problems persisted
Brake Pedal Lockup / Brake Unresponsiveness
Brake pedal becomes unresponsive or locked in position despite being pressed. Car continues at constant speed (5 mph) and does not slow or stop despite repeated brake application.
When: While in driveway at low speed; one incident at 5 mph in garage
Symptoms owners cite: Brake pedal locked in position; Car continues at constant speed despite brake applied; Vehicle goes through garage door and into wall; No change in speed despite multiple brake attempts
Repairs/costs cited: Vehicle went through garage door and hit wall; not repaired; Tesla has data recorder but failed to provide data after 7 weeks
Recalls/TSBs owners mention: Tesla acknowledged data recorder exists; did not provide data to owner after multiple requests
MCU (Media Control Unit) Failure During Software Update
MCU fails during firmware update, causing update to get stuck at 50%. Results in loss of rearview camera, blind spot monitoring, and Autopilot functions. This is a repeat failure—MCU had been replaced in 2022 on same vehicle.
When: During firmware update; vehicle with 16,600 miles; MCU previously replaced in 2022
Symptoms owners cite: Firmware update gets stuck at 50%; Rearview camera inoperative; Blind spot monitoring inoperative; Autopilot functions disabled; Loss of critical safety features
Repairs/costs cited: Tesla Service Center confirmed MCU needs replacement; cost significant; no pre-existing warning signs before failure
Recalls/TSBs owners mention: Tesla proposes MCU replacement; no diagnostic logs or evidence of prior hardware issue provided
Gear Stalk Ambiguity / Unintended Neutral Shift
Right gear stalk designed so that partial upward push shifts to neutral while full push cancels cruise control. Driver can accidentally shift to neutral while underway, disabling regenerative braking and normal acceleration. No audible alert when shifted to neutral.
When: Ongoing issue since August 2018; user alerted Tesla then; no change to design through multiple OTA updates
Symptoms owners cite: Partial stalk push shifts to neutral; Full regenerative braking disabled in neutral; No audible or prominent warning when shifted; Only small visual change on touchscreen; Can disable both acceleration and primary braking; Especially dangerous in regenerative braking-reliant Tesla
Repairs/costs cited: No repair; design flaw remains unfixed
Recalls/TSBs owners mention: Tesla alerted in August 2018; no response; no design change despite numerous OTA software updates
Jerking/Lurching on Gear Shift (Reverse to Drive Transition)
Vehicle jerks or lurches forward abruptly when shifting from Reverse to Drive, especially in low-speed garage maneuvers. Has occurred repeatedly over a year of ownership.
When: When shifting from Reverse to Drive in garage at very low speed; happens multiple times over a year
Symptoms owners cite: Car jerks or lurches forward abruptly; Occurs when switching gear stalk from Reverse to Drive; Happens with both feet flat on floor, not on pedals; More pronounced in garage with low speed
Repairs/costs cited: No repair documented; owner suspects it happens multiple times but not formally diagnosed
Recalls/TSBs owners mention: No response documented
Throttle Map Anomaly / Unexpected Pedal Response
Accelerator pedal response becomes erratic. Light 5-10% pedal input causes car to lurch forward as if pedal depressed halfway. Releasing pedal does not trigger regenerative braking. Issue appears to resolve after braking.
When: In parking lot while exiting space; issue resolved after brake application
Symptoms owners cite: Gentle accelerator input causes disproportionate acceleration; Feels like throttle map is miscalibrated; Regenerative braking doesn't activate on pedal release; Requires manual brake to slow vehicle; Issue self-resolves after braking
Repairs/costs cited: No repair sought; issue self-resolved
Recalls/TSBs owners mention: No response documented
Adaptive Cruise Control / Autopilot Late Braking Response
Autopilot fails to brake in time when vehicle ahead slows or stops in stop-and-go traffic. Driver forced to brake manually at last moment. Collision occurred in at least one case. Automatic emergency braking did not activate.
When: In stop-and-go highway traffic during rush hour; vehicle with adaptive cruise/Autopilot engaged
Symptoms owners cite: Vehicle ahead suddenly stops but Autopilot doesn't respond in time; No automatic emergency braking warning or activation; Driver manual intervention at last second; Collision occurred when manual intervention too late; Slow reaction times and close braking distances normal with Autopilot
Repairs/costs cited: Collision damage sustained; vehicle may be insurable as accident
Recalls/TSBs owners mention: No manufacturer response documented
Camera/Vision System Blind Spots (Blind Spot Monitoring Failure)
Tesla cameras fail to detect vehicles in driver-side blind spot. Detection used to work but stopped several months prior to complaint. Also fails to detect low flatbed trailers and empty car carriers.
When: Multiple months prior to complaint; ongoing issue with multiple software versions
Symptoms owners cite: Blind spot vehicles not shown on screen; Low flatbed trailers not detected; Empty car carrier trailers not shown; System previously worked but stopped detecting
Repairs/costs cited: No repair documented; owner avoids Autopilot due to this issue
Recalls/TSBs owners mention: No response documented
Software Update Causes System Reset and Control Distraction
Major software updates wipe out user profiles and rearrange control settings without warning. Controls become hidden or hard to find. Small font sizes in control panels make buttons invisible to older drivers. Creates significant driver distraction searching for controls while driving.
When: After software updates (e.g., version 2023.2.12); affects older drivers disproportionately
Symptoms owners cite: User profiles deleted without warning; Control settings rearranged unexpectedly; Some controls hidden; Very small font sizes; Driver distraction while searching for controls; Difficulty finding simple, necessary controls
Repairs/costs cited: No repair; design flaw in update process
Recalls/TSBs owners mention: Tesla notified of safety concern; no response from manufacturer
Loss of Power / Speed Reduction While Accelerating
Vehicle loses power on freeway and continues to slow down despite driver repeatedly depressing and holding accelerator. No warning lights or sounds alert driver to problem.
When: On freeway; brought to Tesla multiple times with no resolution
Symptoms owners cite: Vehicle slows on freeway despite repeated full accelerator input; No warning lights or alert sounds; Gradual loss of power; Owner has video evidence
Repairs/costs cited: Multiple Tesla service visits; no fix found
Recalls/TSBs owners mention: No fix identified by Tesla service
Cabin Camera Misdetection (Driver Attention Monitoring)
Interior cabin camera fails to properly detect driver hand position on steering wheel. Randomly causes false 'not holding steering wheel' warnings, distracting driver from road. Also causes camera display to pop up randomly and obstruct front view.
When: Ongoing during Autopilot use; happens repeatedly
Symptoms owners cite: False warnings that driver not holding steering wheel; Camera display pops up unexpectedly covering front road view; Display not aligned with road view; Causes driver distraction; Cancels Autopilot mid-long-distance drive
Repairs/costs cited: Multiple service attempts; Tesla technicians blame other departments; repairs incomplete
Recalls/TSBs owners mention: Tesla acknowledges issue but service unable to fix; recalls on car but no parts or time to complete repairs
Synthesized from 60 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had cruise control trouble with your 2018 Tesla Model 3?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the cruise control problem on the 2018 Tesla Model 3?
It's a meaningful issue. 60 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $600.
At what mileage does the cruise control typically fail?
Across the 16 complaints that reported odometer mileage, most cruise control failures cluster between 4,410 and 17,000 miles, with the median around 9,000. A quarter of owners report trouble before 4,410; a quarter make it past 17,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $600 for cruise control 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.
Are there any recalls related to cruise control?
No active recalls currently cover cruise control issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Tesla/Model 3.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.