2008 Toyota Highlander Problems

What owners report

On this model year, owners most often describe brake warnings and a hard or noisy brake pedal tied to the brake actuator and booster pump, frequently on hybrid examples, and an engine oil cooler hose that can burst and drain the oil. Airbag warning lights traced to the spiral cable, steering column clunking, and occasional unintended or delayed acceleration requests round out the reports. Many of these appear on higher-mileage vehicles, but the oil cooler line and the airbag light also show up well below 100,000 miles.

1. 1
   Brakes

   Brake actuator / booster pump warning lights and hard pedal

   • 106 complaints (26%)
   • median 72,000 mi at 6.3 yrs old (71 state mileage)
   • 12 mention a crash, fire or injury
   • owner-quoted repair $3,200 (median of 23 quotes)
   • filed 2008–2025

   Owners describe a cluster of dashboard warnings (check brake system, check ABS, check VSC) appearing while driving or on start-up, sometimes with a hard brake pedal, a groaning or buzzing noise under the hood when braking, or a brief lunge forward. Many say the dealer diagnosed the brake actuator assembly and sometimes the brake booster pump, with quotes in the low thousands. Several owners mention a customer support program or extended warranty that they say has since expired, and say they were told there is no recall for this model year. Mostly reported between roughly 80,000 and 200,000 miles, often on hybrid versions.

   4 related service bulletins

   What to check: Before buying, start the car and watch the dash for brake, ABS and VSC warnings, and listen for noise from under the hood when pressing the pedal. Ask for any brake actuator or booster pump repair records and whether a customer support program covered the work.

   2 excerpts from owner complaints in NHTSA records

   “I have Toyota Highlander hybrid 2008. My car is making noise under the hood whenever I hit the brake regardless of if the car is moving or halt. Initially Toyota service guys said that the sound is expected and nothing is wrong with my car but during my last visit to them they mentioned my ABS actuator and motor has gone bad and needs to be replaced. The estimate cost to fix the problem is around $3200. …”

   NHTSA complaint #11337284, filed 2020-07, 109,000 miles

   “Recently we've got a bunch of warning lights on the dashboard of our car indicating a brake system malfunction and urging us to stop the vehicle in a safe location. The brakes were still working and we were able to carefully and safely drive home. After scanning the car for ABS error codes and doing a quick online search, I realized that the brake booster pump assembly and actuator assembly failed in our car.”

   NHTSA complaint #11307403, filed 2020-02, 128,250 miles
2. 2
   Engine

   Engine oil cooler hose bursts and drains the oil

   • 48 complaints (12%)
   • median 108,994 mi at 8.0 yrs old (40 state mileage)
   • 6 mention a crash, fire or injury
   • filed 2010–2024

   Owners describe the rubber oil cooler line failing suddenly, often at highway speed, with oil spraying or pouring out and the oil pressure light coming on late or not at all. Some report smoke from oil hitting hot engine parts, and a few describe the engine stalling. Dealers and independent shops are said to have replaced the hose with a metal pipe, and several owners mention a warranty enhancement or extended coverage that they say has expired by mileage or age. Reported from roughly 70,000 to about 160,000 miles, often while driving at speed.

   2 related service bulletins

   What to check: Have the engine oil cooler line inspected and ask whether it has been replaced with the updated metal pipe. Check the oil level and look for oil residue or staining around the lower passenger side of the engine.

   2 excerpts from owner complaints in NHTSA records

   “I had an engine oil cooler hose rupture at 131000 miles. I left an oil slick a mile long on the street causing a hazard in the road and a mess in my garage. Engine oil had sprayed all over the lower half of the engine and onto the catalytic converter which was heavily smoking and I noticed a small fire down in the lower half of the engine compartment so I had to pour water on the fire. …”

   NHTSA complaint #11354006, filed 2020-09, 131,000 miles

   “I recently learned it is a known issue by Toyota that the oil cooler line could rupture. This happened to me as I was driving on a very busy 3-lane highway. My only indication was when the oil pressure light came on, indicating an urgent need for me to pull over. Luckily I was already in the right lane getting ready to get off at the next exit, however only 5 minutes earlier I was traveling at a high rate of speed, keeping up with the 3 lanes of traffic. …”

   NHTSA complaint #11023908, filed 2017-09, 95,000 miles
3. 3
   Vehicle speed control

   Unintended or delayed acceleration; throttle response

   • 28 complaints (7%)
   • median 25,253 mi at 2.3 yrs old (26 state mileage)
   • 15 mention a crash, fire or injury
   • filed 2008–2020

   Owners describe two patterns: a hesitation where the vehicle coasts for a few seconds after the pedal is floored before accelerating, and cases where the accelerator seemed stuck, with braking not stopping the car. Some owners say the dealer attributed the hesitation to the computer learning driving habits, or could not duplicate the problem; one recall for this model year addresses a pedal trapped by an unsecured or incompatible floor mat. Reports span roughly 10,000 to 240,000 miles, including low-mileage vehicles.

   Recall 10V0230001 related service bulletin

   What to check: Confirm the recall for the accelerator pedal and floor mat was completed. Test the car from a stop and check that it responds promptly, and make sure only the correct, secured floor mat is fitted.

   2 excerpts from owner complaints in NHTSA records

   “2008 Toyota Highlander - accelerated to pass a car in the next lane so I could pass and the accelerator got stuck. I could not stop the car. I pulled into the shoulder and though the car into neutral and had both feet on the brake and still the car wanted to go but it slowed a bit so I threw it into park and the jerked but finally came to a stop and I shut off the car. This is the 2nd time this has happened to me and I am afraid that it may cause a serious accident. Currently the car is at the dealership. …”

   NHTSA complaint #10261772, filed 2009-03, 12,000 miles

   “When accellerating into traffic after stopping for a stop sign or light the car moves into the traffic but does not accellerate but coasts dispite flooring the gas pedal. After 2 to 5 seconds the car will accelerate. The tech at the Toyota dealership said that this was caused by the computer throttle control that sets according to driving habits. This stall when accelleration is needed has almost caused many collisions from traffic coming up behind the vehicle. …”

   NHTSA complaint #11308932, filed 2020-02, 240,000 miles
4. 4
   Air bags

   Airbag warning light from the spiral cable

   • 50 complaints (12%)
   • median 78,000 mi at 6.0 yrs old (43 state mileage)
   • 14 mention a crash, fire or injury
   • owner-quoted repair $500 (median of 13 quotes)
   • filed 2010–2026

   Owners report the airbag warning light coming on and staying lit, with the dealer or an independent shop diagnosing the spiral cable assembly in the steering column and replacing it at a few hundred dollars. Several owners note that the same part was recalled on other models but that their Highlander was not included. Reported from roughly 60,000 to 95,000 miles in the sample.

   Recall 14V1680001 related service bulletin

   What to check: Turn the key to the on position and confirm the airbag light goes out after the self-check. Ask whether the spiral cable has been replaced and keep any repair receipt.

   2 excerpts from owner complaints in NHTSA records

   “While driving, the air bag light came on and stayed on. After taking it to a Toyota dealer, it was diagnosed as a spiral cable assembly malfunction. This issue has been the subject of recall for 2008 tacomas, camrys and venzas, but not the Highlander. It is a $450 expense. It seems to me if Toyota has recalled the part on other models in the same year, it should consider recalling it for the Highlander. Looking at the recent complaints filed on this website, I see that I am not the only one to experience this issue.”

   NHTSA complaint #10519645, filed 2013-06, 85,000 miles

   “Airbag sensor light deployed, and remained lit for approximately three days. Toyota dealership at pullman, wa diagnosed the problem as a faulty spiral cable; the spiral cable assembly was replaced at a cost of $491.69. I wonder why there was a recall done on ~450,000 tacomas, but not on the Highlander. It sounds like a similar problem: poor engineering leads to friction, causing a short in the cable. Warning light goes on, and the driver air bag may not deploy during a wreck. I could think of 1001 better ways to spend $500!!!”

   NHTSA complaint #10541688, filed 2013-09, 93,255 miles
5. 5
   Steering

   Steering column clunk or knock when turning

   • 23 complaints (6%)
   • median 95,000 mi at 9.6 yrs old (21 state mileage)
   • filed 2012–2020

   Owners describe a clunking, knocking or clicking noise from the steering column, mostly heard or felt while turning the wheel, and sometimes a shake at low speed. Some say dealers could not reproduce the noise or called it a common condition, while others report it getting worse over time. One owner reports the steering wheel column separating while adjusting the tilt or telescope. Reported from about 21,000 to 160,000 miles, with several cases in the 50,000 to 130,000 mile range.

   What to check: With the car parked, turn the wheel lock to lock and listen for a knock or click, then repeat while driving slowly in a lot. Ask whether the intermediate shaft or column has been serviced.

   2 excerpts from owner complaints in NHTSA records

   “Steering went out all of asudden without notice,almost causing me to crash,,my speed was legal speed in texas 80mph,,,also a the ABS light came on and felt like brakes were going to be applied,,turned engine off, restarted car and ABS brake light went off”

   NHTSA complaint #11382796, filed 2020-12, 162,000 miles

   “This vehicle has a knocking/clunking/clanking/thumping sound when turning the steering wheel. It sounds dangerous and I wonder if the steering column will break apart while driving. This has been happening for a while, but the dealers are always unable to replicate it, some say that it is a common problem. It has become worse recently.”

   NHTSA complaint #11156953, filed 2018-12, 50,000 miles

Buying note. Check brake system warning history and the engine oil cooler line first, since those are the most frequent and costliest reports, then confirm airbag light behavior and that the accelerator pedal recall was done. A pre-purchase inspection by a shop familiar with Toyota hybrids is worth the cost on this model year.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.