Scion Problem Reports

Most Reported Scion Problem Reports

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An illuminated Check Engine Light could be caused by a defective VVT-i controller, which changes cam timing for optimal power.  Updated parts are available and the repair may be covered under the powertrain warranty.

An abnormal noise or vibration on acceleration from rest or on gear shift may develop. Our technicians tell us a redesigned left side engine mount insulator is available to address this problem.

An illuminated Check Engine Light could be caused by a defective VVT-i controller, which changes cam timing for optimal power.  Updated parts are available and the repair may be covered under the powertrain warranty.

An illuminated Check Engine Light could be caused by a defective VVT-i controller, which changes cam timing for optimal power.  Updated parts are available and the repair may be covered under the powertrain warranty.

When backing up and applying the brakes, you may hear a squeaking noise. Scion engineers addressed this problem by modifying the shape of the brake pad and the anti-squeal shims; they also applied more grease during assembly.

Some engines may experience a brief knocking or rattle on cold start up. Our technicians tell us replacing the camshaft timing gear assembly with upgraded parts will generally correct this concern.

Check Engine Light Illuminated
Problem: Diagnostic Showed Error Code 420: "Catalytic Converter Efficiency Below Threshold (Bank 1)
Solution: Free Replacement by Dealer Under California 7yr/70k or Federal 8yr/80k Warranty Covering Emissions Parts

Air conditioning that doesn't blow cold enough could indicate the need for adjusting the cable for the temperature blend door.

When backing up and applying the brakes, you may hear a squeaking noise. Scion engineers addressed this problem by modifying the shape of the brake pad and the anti-squeal shims; they also applied more grease during assembly.

The AC evaporator drain hose may become dislodged and cause a water leak on the passenger floor.

Some vehicles may develop a condition where they cannot be shifted from "Park" to "Drive" and/or multiple warning lights illuminate when exposed to extreme cold conditions (-14 degrees F) or lower. Our technicians tell us the ignition (IG) relay should be replaced with an updated part to correct this concern.

Air conditioning that doesn't blow cold enough could indicate the need for adjusting the cable for the temperature blend door.

1.8L engines may experience excess engine oil consumption. Our technicians tell us updated software is available for the engine control module (ECM) to address this problem.

An extended cranking or no start condition, and/or illumination of the Check Engine Light with codes P0300-P0304 and/or P0015 may be noted. Our technicians tell us updated powertrain control module (PCM) software is available to correct these concerns.

Vehicles fitted with remote start may encounter a dead battery after sitting for a few days. This can be due to a parasitic draw caused by the remote start computer. Our technicians remind us proper diagnostic procedures should be followed before replacing the remote start module with an updated part.