The 2005 Scion xB with the 1.5L 1NZ-FE engine is generally reliable, but suffers from oil consumption issues leading to catastrophic engine failures if not monitored closely, plus some transmission cooling and mount concerns that are straightforward fixes.
Excessive Oil Consumption Leading to Engine Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Blue smoke from exhaust on startup or acceleration, Low oil warning light appearing between changes, Burning through a quart every 500-1,000 miles, Knocking or ticking noises if oil level drops critically, Complete engine seizure if driven low on oil
Fix: The 1NZ-FE engine burns oil due to worn piston rings and carbon buildup in ring lands. Early intervention involves frequent oil top-offs (check every 500 mi). Once knock starts, you're looking at either a full engine rebuild (18-24 hrs labor) with new pistons, rings, honing, and bearing replacement, or a used engine swap (12-16 hrs). Many owners ignore the problem until catastrophic failure occurs.
Estimated cost: $3,500-6,500
Transmission Oil Cooler Line Failure
Occasional · medium severity
Typical onset: 100,000-160,000 mi
Symptoms: Transmission fluid leaking near radiator area, Pink or red fluid pooling under front of vehicle, Transmission running hot or slipping if fluid level drops, Milky transmission fluid if cooler leaks internally into coolant
Fix: The rubber lines connecting the external transmission cooler to the radiator crack and leak. Replace both cooler lines and check radiator-mounted cooler for corrosion. If coolant contaminated transmission, flush is mandatory. 2-3 hrs labor for lines only, add 1-2 hrs if full flush needed.
Estimated cost: $350-750
Transmission Mount Collapse
Common · low severity
Typical onset: 70,000-120,000 mi
Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive vibration at idle, especially with A/C on, Visible transmission movement when revving in Park, Shifter feels notchy or catches
Fix: The rubber transmission mount deteriorates and allows excessive drivetrain movement. Straightforward replacement, accessed from underneath. Common wear item on these boxes. 1.5-2 hrs labor.
Estimated cost: $200-350
Fuel Filter Clogging (Pre-2006 Design)
Occasional · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Hesitation or stumbling under acceleration, Difficulty starting when engine is hot, Loss of power on highway merges, Engine stalling at idle or when coming to stops
Fix: The in-tank fuel filter on early xBs clogs from sediment, especially if previous owners used cheap gas. Requires fuel pump assembly removal. Toyota later redesigned the filter for 2006+. 2-3 hrs labor to drop tank and replace pump/filter assembly.
Estimated cost: $400-700
Headlight Assembly Condensation and Bulb Failure
Common · low severity
Symptoms: Water droplets or fog inside headlight lens, Frequent headlight bulb burnout (every 6-12 months), Corroded bulb sockets, Dim or flickering headlights
Fix: Headlight assemblies have poor ventilation seals and retain moisture. This causes premature bulb failure and socket corrosion. Multiple NHTSA recalls addressed some years but didn't fully solve it. Replace assemblies with improved aftermarket units or reseal OEM housings with proper sealant and check valve operation. 1-1.5 hrs labor for both assemblies.
Estimated cost: $250-500
Cruise Control Cable Detachment
Rare · low severity
Symptoms: Cruise control suddenly stops working, Throttle feels normal but cruise won't engage, No warning lights or codes
Fix: The cruise control actuator cable can detach from the throttle body bracket due to clip failure. NHTSA recall addressed some VINs. Simple reattachment or clip replacement. 0.5 hrs labor if just the clip, 1-1.5 hrs if actuator needs replacement.
Estimated cost: $150-300
Owner tips
Check oil level every 500 miles religiously — the 1NZ-FE oil consumption issue kills more engines than anything else on this platform
Use quality 5W-30 oil and change at 3,000-5,000 mi intervals to minimize ring deposits
Inspect transmission cooler lines annually after 100K miles — catch leaks before they drain the trans
Replace fuel filter around 60K if you experience any drivability issues — it's not a normal maintenance item but should be
Buy one if the current owner has meticulous oil-level records and the engine doesn't smoke — otherwise you're gambling on an expensive rebuild within 20,000 miles.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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GULF STATES TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2010 VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SOLD BETWEEN SEPTEMBER 1, 2005 AND JUNE 2, 2008 WITHOUT THE REQUISITE LOAD CARRYING CAPACITY MODIFICATION LABELS.
Consequence: THIS DOES NOT MEET THE STANDARD REQUIREMENTS.
Remedy: DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL FREE OF CHARGE. DEALERS WILL ALSO CORRECT THE OWNER'S MANUAL. THE SAFETY RECALL BEGAN ON MAY 27, 2010. OWNERS MAY CONTACT GULF STATES TOYOTA AT 713-580-3300.
EXTERIOR LIGHTING:HEADLIGHTS · 09E025000
2009-05-11
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
EXTERIOR LIGHTING · 09E012000
2009-04-07
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.
VEHICLE SPEED CONTROL:CRUISE CONTROL · 07E005000
2007-01-18
CERTAIN ROSTRA CRUISE CONTROLS, P/NOS. 00012-X0486-01, 00015-X0486-01, 00012-X0486-21, 00016-79910, 00016-79910-01, AND 250-1755, INSTALLED AS ORIGINAL EQUIPMENT ON MY 2006-2007 GULF STATES TOYOTA AND SOUTHEAST TOYOTA SCION VEHICLES AND ALSO SOLD AS AFTERMARKET EQUIPMENT. THE CRUISE CONTROL MAY NOT RETURN TO IDLE WHEN THE ON/OFF SWITCH IS PRESSED FOR THE FIRST TIME.
Consequence: FAILURE TO RELEASE THE THROTTLE WHEN THE CRUISE CONTROL IS TURNED OFF COULD RESULT IN A VEHICLE CRASH.
Remedy: THE VEHICLE MANUFACTURERS WILL NOTIFY THEIR OWNERS AND REPLACE THE CRUISE CONTROL FREE OF CHARGE. ROSTRA WILL NOTIFY PURCHASERS OF THE ATERMARKET CRUISE CONTROLS AND REPLACE THE UNITS FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 13, 2007. OWNERS CAN CONTACT ROSTRA AT 910-291-2538.
EXTERIOR LIGHTING · 06E064000
2006-07-17
CERTAIN TRADESONIC COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH.
Remedy: TRADESONIC WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING JULY 2006. OWNERS MAY CONTACT TRADESONIC AT 626-934-8884.
EXTERIOR LIGHTING · 06E060000
2006-06-29
CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH
Remedy: AAI MOTORSPORTS WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 1, 2006. OWNERS MAY CONTACT AAI MOTORSPORTS AT 909-923-9188.
EXTERIOR LIGHTING:HEADLIGHTS · 06E023000
2006-03-13
CERTAIN ANZO COMBINATION HEADLAMP ASSEMBLIES SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS WHICH FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: ANZO WILL NOTIFY OWNERS AND REPLACE THE HEADLAMPS FREE OF CHARGE. THE RECALL BEGAN MAY 9, 2006. OWNERS MAY CONTACT ANZO USA AT 909-468-3688.
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