2017 Toyota Highlander problems

Filed Nov 1, 2026 · Transmission · WV

The UA80 Transmission whine began around 120000 miles, this transmission is from the same [XXX] plant that the ZJC CSP has been issued out of but they claim my vin doesn’t fall into the margin of VIN numbers that are covered. On XXX the Toyota service center of Dan Cava Toyota world in [XXX] stated they were sure the transmission would give out any time and they were sorry they couldn’t help and that many people have this issue and they are sure it’s the same cause as the ones that were affected by this CSP it just wasn’t added into the margin of VIN numbers that Toyota decided they would cover. There are plenty of forums and petitions on the internet of people going through this very same issue. I am amongst many who feel Toyota should have to expand the CSP to include any VIN with these transmissions in the years these were made to be covered. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 20, 2026 · Transmission · MI

Transmission whining, rough shifts at lower gears. Dealership says my car doesn't fall under the secondary csp even though it has the same symptoms.

Filed Oct 8, 2026 · Engine, Transmission · OH

Transmission failure after whining noise, taken to Toyota multiple times with no diagnosis. Today was informed the transmission is failing by another mechanic. 193,000 miles.

Filed Oct 5, 2026 · Transmission · VA

2017 UA80F AWD Toyota Highlander Transmission Failure at 145,000 miles with regular maintenance. Starts off delayed shifting and jerking when accelerating, accompanied with faint whistle/whirring sound from under the dash. with Transmission falls under the Toyota Customer Support Program ZJC TSB 016018. my VIN did not fall in their ViN Database “range”. Multiple reports on same issue posted online from other Highlander and Sienna models who were also denied free coverage, free replacement, or free repair as stated in Customer Support Program and quoted over 15,000 for repair. This is an extremely expensive repair and is a safety issue that can lead to multiple crashes, operating failure, and poses a risk for injury/death.

Filed Oct 3, 2026 · Transmission · PA

Our Toyota Highlander XLE which has 137000 miles on it has the very well documented "whine" issue with the UA80 transmission. This "whine" issue/failure has resulted in at least two TSB's to be generated by Toyota and is considered the beginning stages of a total transmission failure. It impacts 2017 through at least 2022.The symptoms (whine sound/grinding sound/DTC codes/rough operation/unexpected slippage) are identical in all years. Toyota covered a small subset of the total number of failures suggesting an improperly installed "washer" was at fault. The online community impacted by this failure, most of which are outside of that serial number range, clearly do not feel the same way. Failures have occurred on vehicles with as little as 50,000 miles. The issues of transmission slippage/failure to maintain speed/failure accelerate are all safety risks. This problem has been confirmed MANY times by Toyota and it's network of dealers. I had my own vehicle inspected (at my expense) by a local Toyota dealer and they confirmed the failure. In my particular case, the "whine" sound is the only initial symptom with the expectation of other symptoms and issues if I continue to drive the vehicle.

Filed Sep 21, 2026 · Driver assistance, Transmission · FL

customer support program ;; ZJC....Toyota has received reports about potential symptoms, such as a whine noise from the transmission while driving, harsh shifting, reduced power, , in the subject vehicles that are equipped with a model UA80 transmission. There is a possibility that a washer tab, designed to prevent the loosening of a nut inside the affected transmissions, was not sufficiently bent during assembly. This could lead to the nut loosening and, over time, lead to the symptoms described above. i.ve been having this issue with my transmission for a couple of years. my issue started ,when i first got this highlander back in 2017 .when coming to a stop ,i would get a thumping sound from tranny .i took this SUV to dealer ,twice for said tranny issue and pre collision system not functioning properly was told nothing wrong! this happened while suv was still under warranty! i eventually need to replace front windscreen : after which pre collision was functioning properly this was done by Safelite AutoGlass! a couple of months the tranny had a new issue ,tranny began to hesitate. a few months went by and then another new symptom developed ,i was getting shuttering at 1400 rpm ,which goy worst if you were at this rpm for a little while. I've been sick for a couple of years now and was not able to take to dealer to diagnose issues associated with tranny. i've kept driving my highlander with these issues ,since it started!! CUSTOMER SUPPORT PROGRAM ZJC addresses some of the issues i have with my transmission. i don't know why my transmission and vin# is not included in this program.. i'm worried if i went to doctors appt and highlander broke down ,what i'm going to do..i'm on social security disability ,i cant afford much !

Filed Sep 21, 2026 · CO

The transmission had to be replaced. A warning message was displayed and we took the vehicle in and were told the transmission had to be replaced. Toyota Highlander transmission problems are most prominently reported in 2020–2022 V6 gas models using the UA80E 8-speed automatic transmission, as well as specific 2017–2019. The repair shop was aware of the issue and had replaced the transmission for other customers. Shop said "Toyota should have done a recall on this." Toyota Highlander models equipped with the Direct Shift 8-speed automatic (UA80E/UA80F) transmission—primarily 2017 to 2022 V6 gas models—are most prone to transmission failures, whining noises, and erratic shifting. No, Toyota has not issued an official government safety recall for the transmission of the 2017 Toyota Highlander, despite widespread owner complaints and reports of premature failure.

Filed Sep 9, 2026 · Transmission · IL

About a few weeks back we started noticing a whining noise while accelerating. For safety reason we are not using the truck for long distance driving. Yes, the problem was able to reproduce by an independent mechanic and confirmed. Has not been inspected by the manufacturer or any other. There are no warning lights on the dashboard.

Filed Aug 27, 2026 · Engine · CO

My 2017 Toyota Highlander, VIN [XXX], has just under 85,000 miles. I was notified at the dealership (Stevinson Toyota in Lakewood Colorado) who inspected the vehicle yesterday that the vehicle has developed a timing cover oil leak on the passenger side. After further research I learned this is caused by premature failure of the factory applied FIPG sealant at the timing cover’s T junction. This is well documented as a known, widespread defect in the V6 engine used across multiple Toyota and Lexus models between 2014 and 2019. This failure is not due to wear, neglect, or misuse. It is the result of a documented manufacturing flaw that requires full engine removal and carries an extremely high repair cost — a burden that should not fall on customers when the underlying cause is a defective sealant application at the time of manufacturing of the vehicle. I was quoted $5400. I am deeply concerned that Toyota has not issued a recall for this problem, despite its prevalence and the clear safety risks it presents. This leak is not merely a “durability issue.” It has legitimate and serious safety implications, including: •The potential for engine fire due to oil contacting hot components •Serpentine belt failure, which can cause sudden loss of power steering, alternator function, and vehicle control •Additional engine damage if the leak worsens •The possibility of the vehicle breaking down in unsafe or remote conditions Any of these outcomes pose a real safety hazard to drivers, passengers, and others on the road. Toyota’s decision not to address this known defect through a recall is extremely disappointing. I have reached out to Brand Engagement and was turned down by a gal named [XXX]. I then escalated the issue and was again turned down by a gal named [XXX]. I firmly believe Toyota should have issued a recall for this known issue costing consumers $5400 to repair a safety issue due to what is documented as a manufacturing defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B

Filed Aug 20, 2026 · Engine, Transmission · NH

I had been shopping, as I attempted to increase speed, my car wouldn't respond. I smelled something burning and I switched lanes because I needed a safe place to stop. I turned onto [XXX] in Pembroke (I think) and still had no forward (or backward) movement. The lower gears (D5 & D4 ) DID NOT show on the dashboard indicator. I called my husband and he came to me. Then we called AAA and had the car towed to Chichester Car Care. They couldn't fix my car. I then had it towed from Chichester Car Care to McGovern Toyota in Bow. NH. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)