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Engine & cooling

Scion IQ Engine problems by year

9 complaints filed with NHTSA about the Scion IQ's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20135110
20124000

Latest IQ engine complaints

2012 Scion IQLightsEngine & cooling

Tl* the contact owns a 2012 scion iq. The contact stated that the vehicle was taken to an independent mechanic for an oil change. The contact was informed that the vehicle was consuming an excessive amount of oil, causing the engine to fail. The mechanic advised the contact to take the vehicle to a dealer. The contact also mentioned that black smoke was coming out of the vehicle. The vehicle was later taken to rudy luther toyota (8805 wayzata blvd, golden valley, mn 55426) and was informed that the vin was not...

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under recall. The vehicle was diagnosed and the contact was informed that the engine needed to be replaced. The vehicle was not yet repaired due to the repair cost. The contact also stated that the headlights were dim. The manufacturer was not made aware of the failure. The failure mileage was approximately 62,000. The vin was not available.

Filed Incident Exterior lighting · EngineNHTSA 11394418
2013 Scion IQEngine & cooling

Rough idle and engine shutting off while driving. Vehicle is at toyota dealer and diagnostic has been performed. Dealer has determined the cause to be internal carbon deposit in the combustion chambers. Toyota is refusing to cover the repair in their warranty enhancement program zg8 because my vin wasn't part of the original creation for the program zg8. This is an extremely dangerous issue due to the fact that my engine is unexpectedly shutting off while driving. My vehicle only has 41063 miles on the engine and...

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unfortunately for me the 5 years or 60,000 miles new vehile limited warranty has passed the 5 year mark. The toyota mechanics will be following the toyota service bulletin: 0008-16 in making the repairs even though toyota refuses to acknowledge my vin in their warranty enhancement program. I'm forced to pay $1761.75 Out of my pocket for their engine flaw. I'm so disappointed with toyota, the whole reason I purchased this vehicle was because I believed toyota cared about their customers and that they made a dependable vehicle, apparently I've been misled by toyota.

Filed Incident EngineNHTSA 11366676
2013 Scion IQEngine & cooling

Tl* the contact owns a 2013 scion iq. The contact stated that the engine was replaced in 2016 by advantage toyota of river oaks (1970 river oaks dr, calumet city, il 60409, (708) 862-0700). The repairs were completed under the warranty. The vehicle was recently taken back to the same dealer for an oil change and the contact was informed that the vehicle was included in an unknown recall. After three weeks, the dealer replaced the engine valve springs per the recall. After the repair, the engine and front end of...

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the vehicle began shaking. The dealer provided a loaner vehicle and kept the contact's vehicle for another week. The dealer observed that the engine shook and was loud, and the rpms revved. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the dealer on three occasions. The contact spoke with the dealer's service manager who stated that they would check the vehicle one more time and then charge her for any future diagnostic tests. The manufacturer was not notified. The failure mileage was 97,000.

Filed Incident EngineNHTSA 11222698
2013 Scion IQEngine & cooling

Recalled for possibility of a valve spring breaking potentially causing the engine to stop working while under driving conditions. Recall notice indicated that the time for repairs was approximately 2 days and this was confirmed by the service department at valdosta toyota when the vehicle was scheduled for repairs. The vehicle was taken tio the dealership on 3-31-19 and dropped off. It was finally finished and picked up on 4-20-19. The reasons that we were given by the dealership for it taking so long for the...

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repairs was that the technician doing the repairs was continually not at work. Within a day after picking the vehicle up from the dealer the engine started to make a clicking sound. It was returned to the dealership and we were told that the clicking sound was not related to their repairs made under the recall, rather it was because the fuel system was defective and it would cost us $1940+ for it to be repaired. 5 Days after picking the vehicle up from the dealer the engine conpletely quit as the vehicle was about to turn onto another road after stopping at a stop sign.. The vehicle was towed back to the dealer. We were told that it appeared the problem was the fly wheel, not related to their repair. There never had been any problem with the performace of this vehicle and its' engine before valdosta toyota took the engine apart to make the recall repairs. We have now been told that a number of other cars are in for normal repairs and that they will get to our car whenever they can. We are certain that valdosta toyota either did not properly repair the engine during the recall repairs or that they did further damage to it while they were doing the repairs.

Filed Incident EngineNHTSA 11204347
2013 Scion IQEngine & cooling

Excessive oil consumption, starting at 86k miles. Using 7 quarts of oil every 3,000 miles, with a starting capacity of 3.8 Quarts. This means I'm doing 2 complete oil changes every 3k miles. Toyota dealership said it was normal for that car to use so much oil. Oil light came on about half way through my last oil change (1700 miles) check the dip stick and it was completely dry.

Filed Incident EngineNHTSA 11078531
2012 Scion IQEngine & cooling

Starting back in october took car in for oil change, I was told car had no oil. I bring my car in for regular oil changes, so was not sure what was going on, so I dismissed it... Brought car back today 01/10/18 had them check the oil levels and the car needed 2 1/2 litter of oil... I was told it might be the pistons... Please recall

Filed Incident EngineNHTSA 11061619
2013 Scion IQSteeringAirbagsBody, doors & structureEngine & coolingCrash1 injury

(See seattle police) inc.# [[redacted]]) I was crossing dexter ave. N. To make a left turn at crockett st. Immediately I struck a ford explorer going n/b on dexter which had just pulled from the curb about 100' away. My car sustained front end damage and was declared a total wreck. The right front of the explorer sustained unknown damage which was repaired. I sustained four broken ribs and chest injuries (hospital costs $18k+. Concerned about safety, I purchased the small car primarily because I was told it had...

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11 air bags and would be safe in an accident. No airbags deployed in the accident. My injuries were sustained from the steering wheel. I think the car was poorly built and I was misinformed about the safety of my car. In my estimation the who vehicles involved in the accident traveled a combined distance of only 100-150 feet before impact. Toyota has sent me a copy of the data download from the iq, but, not being an engineer, I don't understand it. *Tr

Filed Incident Steering · Air bags · Structure · EngineNHTSA 10574000
2012 Scion IQTransmission & drivetrainEngine & cooling

When cold the cv transmission in the iq will not allow the vehicle to pull away up a steep hill. This has happened several times and represents a serious safety concern. The issue only happens when the car is cold, it will pull the same hill with no problem when warm. The iq has a cv transmission and it fails to adjust to a high enough rpm to pull away up a steep (10%) grade. The problem manifests as either no or very slow forward progress (less than walking speed) even with the accelerator hard down. The dealership service rep seemed unconcerned about the issue. *Tr

Filed Incident Power train · EngineNHTSA 10546045

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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