The contact owns a 2020 Toyota Camry. The contact stated that while the local dealer was performing preventive maintenance on the vehicle, there was an abnormal winding sound detected. The dealer determined that the transmission needed to be replaced. There were no warning lights illuminated. The contact had not experienced a failure prior to the service appointment. The vehicle was not repaired.…
2020 Toyota Camry powertrain problems
severe 28 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
28
Recalls
0
Avg fix
$2,500
1crash
1injury
When does it fail?
Of the 28 powertrain complaints filed for the 2020 Toyota Camry, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 28 powertrain 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
Buyer takeaway: 2020 Camry owners report widespread transmission failures at relatively low mileage (70k–144k miles) involving sudden loss of drive, hesitation, noise, and control issues; many replacements are unavailable with extended wait times, and dealerships often deny problems despite symptoms being reproducible. An exhaust leak allows carbon monoxide into the cabin in at least one case, and a separate incident involved a parked vehicle rolling with failed emergency braking.
Owners of 2020 Toyota Camry models describe a pattern of powertrain failures, with transmission problems dominating the complaints. The UA80/UA80E 8-speed automatic transmission is the most frequently cited component. Owners report sudden internal transmission failure requiring complete replacement (quoted at $8,000+), often with unavailable parts and repair timelines extending to 2025. Failure occurs across a range of mileages (70,000–144,000 miles, some under 100k), sometimes without warning.
Hesitation and delayed acceleration plague many vehicles, with owners describing multi-second lags between throttle input and engine response—a safety hazard during highway merges and intersection turns. Transmission jerking, shuddering, slipping, and erratic shifting appear early and worsen progressively. Loud whining, grinding, and clunking noises from the transmission are common early warnings. One owner's fluid check at 89,000 miles showed dark brown fluid changed ahead of schedule, yet problems persisted.
Transmission control electrical faults cause unintended gear engagement (vehicle slamming into reverse, gear selector showing wrong position), and replacement parts fail prematurely. One owner experienced recurring failures across multiple repair attempts over nine months. Engine exhaust leaks allow carbon monoxide into the cabin at levels reported at 227–229 ppm, with dealership repairs failing to resolve the issue. A separate complaint describes a parked vehicle rolling forward while automated stop technology failed, resulting in serious injury. Owners consistently report Toyota cannot identify root causes or provide timely repairs, and dealerships often deny problems exist despite reproducing symptoms during service.
Same Toyota Camry powertrain reports on nearby years: 2018 · 2019 · 2021
Failure modes owners describe
Transmission internal failure and loss of drive
Transmission develops internal mechanical failure, resulting in sudden loss of drive power, inability to shift into forward gears, or complete transmission shutdown. Owners report the transmission going into limp mode, failing to engage gears (including reverse), or stopping shifting altogether mid-drive.
When: 70,000–144,000 miles, with some cases under 100k miles
Symptoms owners cite: Sudden loss of drive power at highway speeds; Vehicle unable to shift into forward gears or engage reverse; Transmission goes into limp mode; Engine over-revving with no forward motion; Transmission stops shifting mid-drive; Vehicle shudders and stalls without warning lights
Codes mentioned: P0000 (general transmission malfunction), Check Engine Light, Traction Control Light, 'Malfunction in electronic control of engine/throttle/transmission' display message
Repairs/costs cited: Dealers diagnose 'internal transmission failure' requiring full replacement. Toyota has reported unavailability of replacement transmissions with repair timelines extending to March 2025. Owners report replacement quotes of $8,000+.
Recalls/TSBs owners mention: Recall issued for TCM (transmission control module) on some early units; TSB-0008-21 referenced for transmission hesitation/delay issues. Toyota confirmed transmission failures but has not provided parts availability or repair timelines in many cases.
Transmission hesitation, jerking, and sluggish acceleration
Transmission exhibits delayed response to throttle input, hesitation during acceleration, jerky or harsh gear shifts, and inability to smoothly engage gears. Problems often worsen progressively and occur across various driving speeds and conditions.
When: Starting as early as 15,780 miles and progressing through 50,000+ miles
Symptoms owners cite: Delay between pressing accelerator and engine response (seconds-long lag); Hesitation and sluggish acceleration on cold starts; Jerking or harsh gear shifts; Shuddering during shifts; Slipping during shifts; Sporadic shifting and transmission shifting at steady speeds; Unsafe for highway merging and normal traffic maneuvers
Codes mentioned: Check Engine Light (in some cases), No warning lights in many cases
Repairs/costs cited: Transmission fluid service at 50,000–89,000 miles (often dark brown, changed early) provided temporary improvement only. Replacement of transmission wiring harness and transmission control module attempted but did not resolve issues. CV axle replacement did not resolve symptoms.
Recalls/TSBs owners mention: Recall for TCM issued early in vehicle ownership (one owner). TSB-0008-21 referenced by owners as addressing transmission hesitation/delay. Dealerships often claim 'nothing wrong' or attribute to normal operation despite owners' safety concerns.
Transmission whining, grinding, and clunking noises
Owners report progressive and abnormal transmission noises, including loud whining (audible from inside and outside cabin), grinding, clunking, and clicking during gear engagement or acceleration. Noises are often early warning signs of pending transmission failure.
When: 50,000–100,000+ miles
Symptoms owners cite: Loud whining from transmission (interior and exterior audible); Grinding and clunking during gear shifts; Clicking sounds from a stop; Abnormal winding sound detected during service; Progressing whine sound when accelerating
Repairs/costs cited: Transmission specialist assessed as 'premature transmission failure.' No repairs completed in most cases. Independent service centers note UA80E transmissions are in high demand at junkyards due to frequent failure.
Transmission fluid leak (oil pump seal failure)
Transmission oil pump seal fails, causing excessive fluid leakage underneath the vehicle. No warning lights alert the driver to the problem.
When: 70,000 miles
Symptoms owners cite: Excessive fluid leak underneath transmission; No warning lights illuminated
Repairs/costs cited: Dealer diagnosed transmission oil pump seal failure. Vehicle not repaired. Manufacturer claim declined.
Recalls/TSBs owners mention: Claim filed with manufacturer but was declined.
Transmission control/electrical malfunction (shift lever and neutral switch issues)
Transmission control system exhibits erratic behavior, including gear selector displaying incorrect gear position (Drive and Park simultaneously), repeated failure of replacement parts, and intermittent engagement issues. Neutral switch assembly and transmission lever require replacement but failures recur.
When: Early in ownership (issues present within first service period after purchase)
Symptoms owners cite: Vehicle slams into reverse unintentionally; Gear selector erroneously indicates transmission in neutral while driving; Gear selector displays Drive and Park at the same time; 'Drive start control malfunction' error message; Door locks continually locking and unlocking; Recurring failures after multiple repair attempts
Codes mentioned: Drive start control malfunction, Service Engine Light
Repairs/costs cited: Dealership replaced water valve, neutral switch assembly, and transmission lever. New parts were defective ('possibly bad from Toyota'). Replacement part installed but issue recurred 9 months later. Problem persists despite multiple dealer interventions.
Torque converter failure
Torque converter requires replacement, often manifesting as vibration while driving. Replacement of transmission mounts attempted as an alternative but does not resolve the issue.
When: ~144,000 miles
Symptoms owners cite: Vehicle vibrating while driving
Repairs/costs cited: Transmission specialist diagnosed need for torque converter replacement. Dealer instead replaced transmission mounts. Failure recurred. Vehicle not repaired. Manufacturer case filed.
Clutch actuator failure (DCT-related)
Clutch actuator fails, causing loss of acceleration pressure and unresponsive throttle. Condition is intermittent but increases in frequency. Turning vehicle off and on provides temporary relief.
When: At approximately 60 mph during normal driving
Symptoms owners cite: Vehicle goes into limp mode with no acceleration response; Failure to respond when depressing accelerator pedal; No warning lights before failure; Acceleration from a stop is unresponsive; Intermittent but increasing in frequency
Repairs/costs cited: Toyota confirmed clutch actuator failing and transmission replacement needed.
Engine exhaust leak with carbon monoxide in cabin
Engine exhaust leak allows carbon monoxide (CO) to enter the vehicle cabin at dangerous levels (227–229 ppm). Related to engine seal failure and potential engine block damage. Owner reports same issue affecting other 2020 Camry models under recall.
When: Unknown exact mileage; detected during ownership
Symptoms owners cite: Carbon monoxide detected in cabin at 227–229 ppm (elevated levels); Fumes and soap smell in cabin after repair attempt; Owner became ill while driving
Repairs/costs cited: Dealership replaced engine seal for exhaust leak at cost of $337 (plus $117 diagnostic). Leak persists after repair. Dealership offered rental car only (owner unable to use due to health reasons). No proper testing or resolution provided.
Recalls/TSBs owners mention: Owner informed that other 2020 Camry models are recalled for oil leak and possible engine block damage. Toyota Brand Experience center promised follow-up by March 19 but owner reports no contact as of March 31. No remedy or testing plan provided.
Vehicle rolling while in Park (brake/shift interlock failure)
Vehicle rolls forward while parked on a flat surface with no driver input. Automated stop technology failed to prevent motion. Consumer was struck and trapped under vehicle, requiring hospitalization.
When: Unknown mileage
Symptoms owners cite: Vehicle began rolling while in Park on flat surface; No warning lights or indicators; Automated stop technology failed to engage
Repairs/costs cited: Vehicle struck refrigerator, work bench, and consumer. Consumer sustained shoulder, back, and leg injuries requiring orthopedic care and was trapped under vehicle for 30 minutes.
Recalls/TSBs owners mention: Dealer and manufacturer contacted but neither could determine the failure.
Engine misfire/stalling and catalytic converter degradation
Vehicle stalls without warning during normal driving or loses power. Dealership attributes to catalytic converter degradation and engine cooling bypass valve issues. Owner reports same symptoms on multiple Toyota Camry and RAV4 models at dealership.
When: ~38,000–99,000 miles
Symptoms owners cite: Vehicle shudders and stalls at 40 mph without warning light; Loss of motive power at 30 mph on highway; Vehicle will not accelerate in response to pedal input; Check Engine Light (in some cases)
Codes mentioned: Check Engine Light
Repairs/costs cited: Dealership diagnosed catalytic converter issues and engine cooling bypass valve problems. Technician stated dealership has high volume of Camry and RAV4 models with same issue. Parts availability reported as problematic; one owner waited for parts until March 2025.
Synthesized from 28 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Have whining from transmission. When trying to accelerate the car does not shift into gears correctly and there is hesitance and delay. Have issues merging on highway and regular traffic due to hesitance and delay. Car can jerk when accelerating. Had dealership inspect twice at different dates. The dealership said nothing was wrong and that the hesitance and delay was just how the car operates.…
Had powertrain trouble with your 2020 Toyota Camry?
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 powertrain problem on the 2020 Toyota Camry?
It's a meaningful issue. 28 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Based on the 28 complaints filed, powertrain issues most often appear around 65,254 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.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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/2020/Toyota/Camry.
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.