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EnginePart report

2013 Scion IQ Engine Problems

Complaints
5about this part
Share
100%of 5 total for the year
Median mileage
40,800miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2013 Scion IQ, 100% of the 5 complaints for this model year. Where a mileage was given, the median is 40,800 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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.”

NHTSA complaint #11078531, filed 2018-03, 86,000 miles

“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. …”

NHTSA complaint #11366676, filed 2020-10, 40,800 miles

“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 repairs was that the technician doing the repairs was continually not at work. …”

NHTSA complaint #11204347, filed 2019-04, 24,250 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
20135100%
2012424%

Other parts of the 2013 Scion IQ

Air bags
1 complaints
Steering
1 complaints
Body and structure
1 complaints

← All problems reported for the 2013 Scion IQ

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology