2012 TOYOTA TUNDRA Engine Problems

Wife was driving truck and immediately went into limp mode on the highway. Check engine light came on, no accelerating then died. Had to get it towed. This is the 3rd incident with this issue.

The contact owns a 2012 Toyota Tundra. The contact stated while starting the vehicle, the check engine warning light was illuminated. The contact stated that the light stayed illuminated while driving. The contact had taken the vehicle to an independent certified mechanic where it was diagnosed and determined that the secondary air injectors needed to be replaced. The mechanic informed the contact that the manufacturer had offered an Extended Warranty Program to cover the failure under "Warranty Enhancement Program ZG6" for "Air Injection Pumps and Air Switching Valves" and that the warranty had expired several months prior. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 98,000.

Computer software issues. Flex full engine.

The engine leaks oil in front of the faulty designed cam tower seal and leaks on the manifold. This caused smoke to come from the oil burning off.

Secondary air injection pump has high rate of failure, recalls in older models. Has caused truck to go into limp mode. Could cause serious accident/fatality if vehicle suddenly goes into limp mode on highway. This has happened on multiple occasions in forums I’ve read. Known problem by Toyota that isn’t being addressed.

Secondary air injection system failed May 2019. ALL dash warning lights came on. Researched on-line and found truck would not have accelerated past “limp mode” (25-30 mph). Had to have vehicle towed to local Toyota dealer as I was over 40 miles from home (all highway). Toyota dealer diagnosed secondary air injection system failure. Cost to repair OVER $3000. Toyota has acknowledged this is a KNOWN design problem on the Tundra “big” V8s but refuses to recognize this is a design problem on the 2012 4.6L V8 models. Local dealer stated “we have lots of these lying around the shop so no problem getting the part.” Indicating this is a common problem/repair. Spoke directly with Toyota Corporate office who refused to acknowledge design fault or reimburse for repair. This is a HUGE safety issue caused by a known Toyota design problem that needs to be investigated by NHTSA. Toyota MUST...

Secondary air injection system failed June 2018. Vehicle went into limp mode on highway, a dangerous situation as you go from 70 to 30 MPH rather suddenly. Alamo Toyota dealership in San Antonio stated code PO418 and needs to have air pumps and valves replaced. Cost estimate of $3362.57. Toyota has acknowledged this is a design problem on certain Toyota Tundras but fails to recognize this is an issue on the 2012 4.6L V8 models. Toyota needs to take responsibility that this is still an issue with the 2012 4.6L V8 models.

Check engine light which when checked revealed Air pump and air control valve failures. This is a known problem with 2006-2011 Tundras that Toyota issued an extended warranty for 10 years or 150,000 to replace these parts. There was additional extended warranty for 2012 with 5.7 Liter engine but not the 4.6 liter engine. Safety issue is when total failure occurs vehicle goes into limp mode with max speed of 25MPH which would be bad at highway speeds. Code was run by repair facility and copy is enclosed. Email was sent to Toyota corporate and upon phone call follow up, Toyota refused to do anything towards the defect.

2012 Toyota Tundra Cam Carrier seal/cam tower leak on Passenger side. THE CONSUMER STATED ONCE THE OIL PRESSURE BECOMES HIGHER THAN THE BOND HOLDING THE SEAL ELEMENT, IT BEGINS TO LEAK. THE MANUFACTURER WAS NOTIFIED, BUT DID NOT OFFER ANY ASSISTANCE.

The contact owns a 2012 Toyota Tundra. The contact stated while driving 25 mph, he heard an abnormal sound, and the check engine warning light illuminated. The contact drove to his residence. The contact took the vehicle to the local dealer, where it was diagnosed with needing the secondary air injection system to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was 95,899.

TL* THE CONTACT OWNS A 2012 TOYOTA TUNDRA. THE CONTACT STATED THAT THE VEHICLE WAS PURCHASED WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS REPAIRED AT JOHN HARVEY TOYOTA (2901 BENTON RD, BOSSIER CITY, LA 71111, (318) 741-1337). THE CONTACT STATED THAT AFTER THE VEHICLE REPAIRED, THE TRANSMISSION FAILED AND THE CONTACT RETURNED THE VEHICLE TO THE SAME DEALER WHERE THE TRANSMISSION WAS ALSO REPAIRED. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE ABOVE 25 MPH AND WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE MECHANIC DETERMINED THAT THE SECONDARY AIR INJECTION SYSTEM FAILED AND NEEDED TO BE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 115,000.

MY TUNDRA WITH 75,000 MILES HAS A CAMSHAFT TOWER LEAK AND THIS OIL IS FALLING INTO THE EXHAUST MANIFOLD WITHOUT BEING NOTICED BECAUSE IT DOESN'T MAKE IT TO THE FLOOR, BUT IT GETS TO THE SENSORS AND STARTS RUINING THEM. TOYOTA MOTOR CO KNOWS ABOUT THIS ISSUE IN ALL THEIR 5.7L ENGINES AND THAT ITS A FACTORY ROBOT ERROR BY NOT APPLYING ENOUGH SEALANT IN THE GASKET. AND THIS IS JUST BEING FIXED IF YOU ARE EITHER UNDER FACTORY WARRANTY OR EXTENDED WARRANTY. THE VEHICLES LOOSE POWER AND IF DRIVING ON A HIGHWAY CAN CAUSE A MAJOR ACCIDENT. THE LEAST THIS COMPANY CAN DO IS OFFER A VOLUNTARY RECALL BUT THEY ARE REFUSING TO DO SO BECAUSE THE FIX WILL COST THEM $3500-$4000 FROM ALL THEIR 5.7L ENGINES ASSEMBLED IN THE U.S. SO FOR MY SAFETY AND THE SAFETY OF MANY TOYOTA DRIVERS AND GENERAL HIGHWAY DRIVERS SAFETY, I HOPE...

'12 TOYOTA TUNDRA APPEARS TO GO INTO LIMP MODE, BROUGHT IT TO THE DEALER SHIP, A RECALL WAS LISTED FOR SOMETHING, DIDN'T FIX THE ISSUE. HAD TO HAVE ABOUT $1,500OF WORK DONE. FIXED THE ISSUE....FOR 1.5 MONTHS. BACK AT THE DEALERSHIP AGAIN, THROWING ALL THE SAME CODES FOR ALL THE SAME PARTS. CLEARLY THE PARTS BEING USED AREN'T A FIX TO THE PROBLEM, AND SEEMS LIKE MORE THAN JUST IS ARE HAVING THE SAME ISSUE. AT THIS POINT IT'S PLAYING WITH PEOPLES LIVES. TOYOTA DEALT WITH THIS WITH EARLIER MODELS BUT ANYTHING 2012 AND UP , NOTHING IS BEING DONE. SOMEONE IS GOING TO GET KILLED IF THESE TRUCKS GO INTO LIMP MODE ON A HIGHWAY AND THEY GET HIT AT 70-80 MILES AN HOUR FROM SOMETHING OUT OF THE DRIVERS CONTROL, THAT TOYOTA KNOWS ABOUT. WHEN WILL A RECALL CONDO THIS, SOMETHING NEEDS TO BE DONE.

AFTER FILLING UP WITH GAS AND PULLING ONTO HIGHWAY THERE WAS NO POWER LIKE TRUCK WAS IN LIMP MODE AND TRACTOR TRAILOR HAD TO SWERVE OFF OF ROAD TO PREVENT SEVERE ACCIDENT. THE SECONDARY AIR INJECTION HAS A SEVERE MAL FUNCTION WHICH TOYOTA ONLY RECOGNIZED IN EARLIER MODELS AND THEY EXTENDED WARRANTY TO 10 YEAR AND 150,000 MILES. THIS IS A SEVERE PROBLEM I WISH SOMEONE WOULD INVESTIGATE BEFORE IT'S TOO LATE AND LIVES ARE LOST. THERE IS NOT MUCH RESPONSE TIME TO MAKE A QUICK DECISION DURING THIS MOMENT. THANK YOU

LEAKY TUNDRA CAM TOWER SEAL. TOYOTA CLAIMS THAT THEY USES A EPOXY TYPE SEAL THAT HAS BEEN FOUND TO LEAK, AND NEEDED TO BE REPLACED WITH DIFFERENT TYPE OF GASKET SEAL..THE CHARGE FOR THIS APPROXIMATELY $ 5000.00 THAT THEY SAY IS THE CONSUMERS RESPONSIBILITY.

CHECK ENGINE LIGHT WENT ON. GOT A CODE P0418-VEHICLE WILL GO LIMP/NOT ABLE TO GO OVER 25MPS. TOYOTA HAS A WARRANTY REPAIR PROGRAM IN PLACE FOR ALL 2012 TUNDRAS WITH A 5.7 SIZE BUT NOT MINE BECAUSE IT IS A 4.6 EVEN THOUGH IT IS THE EXACT SAME PROBLEM!!! *TR

MY 2012 TUNDRA WITH 107K DISPLAYED THE CHECK ENGINE, 4LO, AND TRACTION CONTROL WARNING LIGHTS AND WOULD ONLY DRIVE IN 'LIMP MODE'. LUCKILY THIS HAPPENED AT STARTUP WHEN I WAS LEAVING WORK ONE AFTERNOON, AND NOT AS I WAS DRIVING AT HIGHWAY SPEED. I 'LIMPED' TO THE LOCAL DEALER USING BACK ROADS AND LEFT THE TRUCK FOR DIAGNOSIS. I WAS NOTIFIED THAT THE TRUCK WAS EXHIBITING CODE 'P2440' FOR A FAULTY SECONDARY AIR INJECTION SYSTEM VALVE, AND THAT BOTH SECONDARY AIR PUMPS AND VALVES WOULD NEED TO BE REPLACED TO CORRECT THE ISSUE. THE REPAIR WOULD COST $2500, BUT "LUCKILY" THE DEALER HAD THE PARTS IN STOCK BECAUSE THIS WAS A COMMON PROBLEM. SINCE I NEEDED THE TRUCK TO GET BACK AND FORTH TO WORK EACH DAY, AND I AM NOT READY TO REPLACE IT, I AUTHORIZED THE REPAIR AND PICKED IT UP THE NEXT DAY. SUBSEQUENT RESEARCH ON-LINE SHOWED...

ON NUMEROUS OCCASIONS WHILE DRIVING, MY 2012 TOYOTA TUNDRA SUDDENLY LOST ACCELERATION POWER AND EXPERIENCED THE ENGINE FAILURE KNOWN AS "FAIL-SAFE" OR "LIMP-HOME" MODE. AS EVIDENCED BY TOYOTA T-SB-0160-11, WARRANTY POLICY BULLETINS, AND WARRANTY ENHANCEMENT PROGRAMS, TOYOTA IS WELL AWARE OF THIS SERIOUS DESIGN FLAW AND SAFETY ISSUE, YET HAS CHOSEN TO REPAIR OR COMPENSATE ONLY A SELECT FEW. THE PARTS THAT HAD TO BE REPLACED AFTER MY VEHICLE REPEATEDLY WENT INTO 'FAIL-SAFE / LIMP-HOME' MODE CORRESPOND DIRECTLY WITH THE PART NUMBERS REFERENCED IN TOYOTA WARRANTY POLICY BULLETIN POL17-02 WHICH COVERS THIS DEFECT IN OTHER MODELS, BUT NOT IN MY 2012 MODEL. MY OUT-OF-POCKET COST TO REPAIR THIS MANUFACTURER'S DEFECT WAS $3034.87. THIS A KNOWN AIR INJECTION SYSTEM WATER INTRUSION DEFECT AND COMMON SAFETY COMPLAINT AT THE NHTSA AND ON MULTIPLE TOYOTA FORUMS, AFFECTING NUMEROUS 2012 TUNDRA'S WHICH TOYOTA IS REFUSING TO ACKNOWLEDGE AND COMPENSATE FOR. I HAVE WRITTEN SEVERAL...

2012 TUNDRA 4.6 V8 MY TRUCK WILL GO INTO LIMP MODE AND THE 4LO LIGHT FLASHES, CHECK ENGINE, AND TRAC OFF LIGHTS WERE ALL ON. ALMOST COMPLETE LOSE OF POWER WILL HAPPEN. IN TRAFFIC I END UP BLOCKING EVER VEHICLE BEHIND ME, BECAUSE THE TRUCK WILL NOT REACH THE SPEED LIMIT. IF THERE IS A HILL THEN THE TRUCK BARELY MOVES GOING UP THE HILL. AFTER LOOKING ONLINE I SAW IT'S A PRETTY COMMON PROBLEM ON TOYOTA WITH THE SECONDARY AIR INJECTION PUMP SEIZING. I CHECKED IT WITH THE CODE READER AT A LOCAL SHOP AND THE GUY CONFIRMED IT, CODE P2240 "AIR INJECTION SWITCHING VALVE STUCK OPEN BANK 1." HE TOLD ME HE USED TO WORK FOR TOYOTA AND KNEW THERE WAS THE EXTENDED REPAIR ON THIS ISSUE BUT COULDN'T RECALL THE SPECIFICS. I WENT INTO TOYOTA AND UNFORTUNATELY THEY WILL NOT COVER IT FOR MY TRUCK AFTER THEY...

I HAVE NOTICED AN OIL LEAK FROM THE CAMSHAFT HOUSING ON MY PASSENGER SIDE. THIS HAS LED TO OIL BURNING ON MY EXHAUST MANIFOLD WHICH IS A FIRE HAZARD.

WITH ONLY 81,719 MILES ON MY TRUCK I HAD TO HAVE THE AIR INJECTION PUMP & VALVES REPLACED ON 3/29/2019. I WAS INFORMED THAT THIS WAS A COMMON PROBLEM WHICH HAD BEEN RECALLED IN THE 2011 & 2010 MODELS. IF A RECALL IS MADE WITHIN A YEAR OF THE PART BEING REPLACED I WILL BE REIMBURSED. I WORK FROM HOME AND THE TRUCK HAS ONLY BEEN DRIVEN FOR LEISURE OR CHORES FOR THE PAST 3 YEARS. IT WAS DRIVEN DAILY IN LAS VEGAS FROM 2015-2017 AND IN ORLANDO FROM 2012-2015. THERE HAVE BEEN NO OTHER ENGINE PROBLEMS. IN JANUARY OF 2019 THE CHECK ENGINE LIGHT CAME ON AND THE CAR WAS PERFORMING WITH LESS POWER BUT EVERYTHING WORKED OKAY. INSTEAD OF DRIVING AN 8 CYLINDER TRUCK IT FELT LIKE DRIVING A FULL SIZE TRUCK WITH ONLY 4 CYLINDERS. THE ISSUE HAPPENED OVERNIGHT. EVERYTHING WAS FINE AND THEN THE PERFORMANCE JUST...

I TOOK MY TUNDRA IN FOR A OIL CHANGE AND THE DEALER SHIP SAID I HAVE OIL LEAK AT THE TIMING BELT. IT WOULD BE OVER 1600.00 TO FIX THIS. IT IS TIME CONSUMING FOR THE LABOR RATE IS HIGH. THE TRUCK ONLY HAS 45,000 MILES ON IT.

MY TRUCK HAS BEEN HAVING HARD START ISSUES SINCE WINTER 2017. I FIGURED IT WAS MY BATTERY SO I REPLACED IT, BUT IT DIDNT HELP. THE HARD START WASN'T CONSISTENT SO I CHOSE TAKE SOME TIME TO SEE IF ANY OTHER PROBLEMS SURFACED. GOT THROUGH WINTER 2018 AND SPRING/SUMMER 2019 WITH IT STILL STARTING ROUGH ON OCCASION. BY OCTOBER 2019 MY TRUCK REACHED APPROX 78K MILES, AND ONE DAY IT DIDN'T START AT ALL. TOOK THREE TRIES TO GET IT GOING. I HAD THE BATTERY CHECKED ONCE AGAIN. IT TESTED BAD BUT IT WAS UNDER WARRANTY SO I HAD I LT SWAPPED OUT. THE PROBLEM PERSISTED. THIS TIME IT GAVE ME AN ENGINE LIGHT. MECHANIC SAID IT WAS AN 'EVAP CODE' AND RECOMMENDED I REPLACE THE GAS CAP TO START. CODE DIDNT RETURN BUT STILL HARD STARTING. TOOK ALMOST TWO MONTHS AND ENGINE LIGHT CAME BACK ON. THIS TIME P1604...

WHEN DRIVING MY CHECK ENGINE AND "TRAC OFF" LIGHT COMES ON AND THE ENGINEER WILL NOT ACCELERATE ABOVE THIRTY MILES AN HOURS. IF YOU DISCONNECT THE BATTERY AND RESET THE COMPUTER IT WILL WORK FOR ABOUT THREE MILE THEN THE CHECK ENGINE AND "TRAC OFF" LIGHT COMES ON. THIS IS THE SAME INDICATION EARLIER TUNDRA MODELS HAVE WITH SECONDARY AIR INJECTORS RECALL. AN IT IS WIDELY DOCUMENTED ONLINE AS A PROBLEM FOR 2012 TUNDRA'S. YET TOYOTA CONTINUES TO DENIES IT'S A PROBLEM AND IS NOT COVERED UNDER THE RECALL.

DRIVING IN HIGHWAY TRAFFIC AND ENGINE REDUCES POWER SIGNIFICANTLY CAUSING THE VEHICLE TO RAPIDLY SLOW DOWN AND BECOME A HAZARD IN TRAFFIC. TOOK IT TO DEALERSHIP AND THEY SAID THE SECONDARY AIR INJECTION SYSTEM NEEDS TO BE REPLACED FOR $3300. THIS IS A KNOWN DEFECT FOR THE PREVIOUS MODEL YEAR. I CONTACTED TOYOTA HQ AND THEY REFUSED TO COVER REPAIRS FOR THIS KNOW DESIGN DEFECT.

* ONGOING MANUFACTURE DEFECT / SAFETY CONCERN WITH 2012 TOYOTA TUNDRA 4.6. CODE P2440, SECONDARY AIR INJECTION. BANK ONE OPEN.---CHECK ENGINE / TRAC OFF LIGHTS / ENGINE IN "LIMP MODE" * DOCUMENTED RECURRING INCIDENTS ON 4-2-19 AND AGAIN ON 10-12-19 AFTER COSTLY OUT OF POCKET REPAIR. * MY 2012 TOYOTA TUNDRA 4.6 MOTOR DOUBLE CAB HAS EXPERIENCED THE AIR INJECTION PUMP FAILURE TWICE IN A SIX MONTH PERIOD. THIS FAILURE IS A SAFETY HAZARD LEADING TO LOSS OF POWER AND VEHICLE CONTROL. THE FIRST OCCURRENCE WAS AFTER A 2,000 MILE TRIP. DRIVING DOWNHILL THE DASH LIGHTS (CHECK ENGINE / TRAC OFF) CAME AT HIGHWAY SPEED AND IMMEDIATELY VEHICLE POWER REDUCED AS WE TRIED TO POWER UP THE NEXT HILL. WE WERE ABLE TO AVOID BEING RUN OVER BY FOLLOWING VEHICLES BY PULLING OFF THE ROAD, AND LIMPED TO THE NEAREST MECHANIC SHOP. CONTACTED 3 DEALERS AND TOYOTA CORPORATE WITH NO...

WHEN CRANKING THE VEHICLE ALL OF A SUDDEN AS OF 5 DAYS AGO THE CHECK ENGINE LIGHT APPEARS ALONG WITH 'TRACK OFF' INDICATOR. THIS THROWS THE TRUCK IN 'LIMP' MODE DECREASING THE POWER OF THE VEHICLE BY 50%. THIS HAPPENED THE FIRST MORNING AND I WAS ENTERING A ON RAMP TO GET ON THE HIGH FROM MY NEIGHBOR AND ALMOST GOT PLOWED OVER DUE TO NOT BEING ABLE TO PROPERLY ACCELERATE TO HIGHWAY SPEEDS WHILE ENTERING THE RAMP. I HAD A TECHNICIAN CHECK THE ISSUE AND WAS TOLD IT HAS TO DUE WITH THE 'SECONDARY AIR INJECTION VALVE' FAILING. AFTER ABOUT FOUR DAYS OF RESEARCH I FOUND THIS IS A COMMON PROBLEM IT NOT JUST MY VEHICLE BUT MULTIPLE YEARS AND MOTOR SIZES. TOYOTA APPARENTLY COVERED CERTAIN YEAR MODELS/VINE BUT WHEN CALLING REGARDING MINE THEY SAID MY VEHICLE WASN'T COVERED EVENING THOUGH THERE ARE THOUSAND OF CONSUMERS HAVING THE EXACT...

THIS COMPLAINT IS THE SAME AS MANY I SEE HERE AND ACROSS THE INTERNET. DRIVING ON THE WASHINGTON DC BELTWAY AND MY 2012 TUNDRA GOES INTO LIMP MODE WHICH REDUCED MY POWER SIGNIFICANTLY CAUSING A UNSAFE SITUATION TO SAY THE LEAST.. DEALER SAID PROBLEM WAS WITH SECONDARY AIR INJECTION SYSTEM AND THE REPAIR WAS VERY EXPENSIVE. NOW 12 MONTHS LATER THE TRUCK IS HAVING THE SAME PROBLEMS. THIS IS AN INFERIOR SYSTEM THAT TOYOTA SHOULD STAND BEHIND AND COVER ALL THE COSTS ASSOCIATED WITH FIXING INSTEAD OF CHARGING TUNDRA OWNERS AFTER THEY'VE ALREADY SPENT HARD EARNED MONEY ON THE VEHICLE PURCHASE. THIS IS A WIDE SPREAD PROBLEM THAT TOYOTA IS NOT OWNING UP TO.

I WAS COMING OFF AN ENTRANCE RAMP MERGING INTO TRAFFIC ON TO A 4 LANE HIGHWAY WHEN MY CHECK ENGINE LIGHT, TRAC OFF LIGHT AND BLINKING 4 LOE CAME ON. THE ENGINE WENT INTO LIMP MODE GREATLY REDUCING MY POWER AND IT FELT LIKE MY STEERING CONTROL GOT LOOSE. I HAD TO PULL OFF THE ROAD TO KEEP FROM BEING RUN OVER BY FASTER TRAFFIC. I WAS ABLE TO MAKE IT TO THE NEXT OFF RAMP AND GET TO A MECHANICS SHOP. THEY HOOKED UP A ANALYSIS COMPUTER AND CAME BACK WITH MAINTENANCE CODE P2432, SECONDARY AIR PUMPS AND SECONDARY AIR PUMP VALVES. UPON FURTHER RESEARCH OF THIS ISSUE I HAVE FOUND OUT THAT THIS HAS BEEN AN ONGOING ISSUE WITH TOYOTA TUNDRAS GOING BACK TO 2007 MODELS. THE WARRANTY HAS BEEN EXTENDED ON 2007 - 2010 MODELS BUT NOT NEWER MODELS WHICH ARE STILL EXPERIENCING THE SAME PROBLEM. MY...

SECONDARY AIR INJECTION PUMP AND SECONDARY AIR INJECTION SWITCHING VALUE CAUSING CHECK ENGINE AND TRAC CONTROL LIGHTS TO COME ON. I WAS TOLD BY THE DEALER THAT THE SAME PIECE AND DESIGN WAS RECALLED ON THE 2011 BUT NOT THE 2012 TUNDRA. IT COMES ON AND OFF BUT WHEN IT IS ON IT FEELS LIKE THAT THERE IS A LIMP MODE MAKING IT DIFFICULT TO GET UP TO SPEED ON THE HIGHWAY. THE STEERING FEELS DIFFERENT WHICH I THINK IS THE TRACTION CONTROL.

SECONDARY AIR PUMP AND CONTROL VALVES FAILING AND THIS IS A ON GOING ISSUE WITH THESE TRUCKS ALMOST $3000 TO FIX

P0418 SECONDARY AIR INJECTOR RELAY A MALFUNCTION. CHECK ENGINE LIGHT IS ON

I WAS PULLING OUT OF WORK. YOU MUST CROSS 3 LANES OF TRAFFIC PLUS THE CENTER MEDIAN TO TURN LEFT. THIS IS A CITY STREET. SPEED LIMIT IS 45 I BELIEVE WITH MANY VEHICLES GOING FASTER. VEHICLE HAD THE SMOG AIR INJECTION PUMPS AND VALVES FAIL. THIS CUTS POWER DRASTICALLY TO THE ENGINE AND PUTS IT INTO LIMP MODE. I WAS FORCED TO SWERVE BACK INTO AND STAY IN THE CENTER MEDIAN INSTEAD OF MERGE INTO TRAFFIC AS THE VEHICLE HAD LITTLE POWER. I WAS ABLE TO WAIT FOR A BIGGER GAP IN TRAFFIC AND LIMP THE VEHICLE TO THE REPAIR SHOP. I BELIEVE THIS COULD BE DEADLY SHOULD IT OCCUR IF TRYING TO GET ON THE FREEWAY OR PULLING A TRAILER AND THE ENGINE CUTS POWER DRASTICALLY. TOYOTA HAS A LONG HISTORY OF ISSUES WITH THESE PARTS FAILING GOING BACK TO 2007 AND POSSIBLY EARLIER. THERE IS NO NEED...

WHILE DRIVING, MULTIPLE DASHBOARD LIGHTS CAME ON AND MY TRUCK WENT INTO "LIMP MODE," MEANING I LOST ALMOST ALL POWER WHILE DRIVING IN HEAVY TRAFFIC. TURNS OUT THIS IS AN ISSUE WITH THE AIR INJECTION PUMP, WHICH IS A KNOWN PROBLEM IN TOYOTA TUNDRAS. I BELIEVE THIS IS A SAFETY ISSUE THAT TOYOTA NEEDS TO ADDRESS.

I OWN A 2012 TUNDRA WITH THE 4.6 LITER V8 ENGINE. VERY VERY SIMILAR OR EXACT TO OTHER COMPLAINTS ON THIS BOARD. TRUCK WENT INTO LIMP MODE WHILE ON THE HIGHWAY. TOOK THE VEHICLE TO THE DEALERSHIP AND HAD TO PAY TO HAVE THEM REPLACE THE SECONDARY AIR INJECTION PUMPS AND VALVES. I AGREE THE FIX NEEDS TO BE EXTENDED TO ALL YEAR MODELS AND ENGINE SIZE TUNDRAS, NOT JUST UP TO 2011. ALSO AGREE THAT THESE DEFECTS COULD RESULT IN A FATAL SITUATION IF NOT CORRECTED ACROSS THE BOARD. TOYOTA SHOULD ALSO REIMBURSE THOSE THAT HAVE HAD TO PAY FOR THE REPAIR.

I HAD A SUDDEN JUMP IN MY RPMS AND ACCELERATOR MALFUNCTION I HAD TO CAREFULLY GUIDE THE TRUCK TO THE SIDE OF THE ROAD. AFTER IT DIED I COULD NOT START IT. THE ENGINE LIGHT FLASHING, THE 4LO FLASHING AND TRACTION'S ALL FLASHING. I STILL HAD ELECTRICAL BUT NO POWER. I WAS BEING FOLLOWED BY ANOTHER VEHICLE WHO ALMOST HIT ME AND MY DAUGHTER. THESE TRUCKS ARE SUPPOSED TO BE KNOW FOR THEIR LIFE SPAN AND SAFETY. THIS IS NOT WHAT I CALL SAFE BY ANY MEANS.

I HAVE A 2012 TUNDRA WITH 135K AND 4.6 LITER. I ALSO SEE SEVERAL OTHER COMPLAINTS HERE WITH MY SAME PROBLEM. MY EXPERIENCE IS THAT AFTER SUDDEN JUMP IN MY RPMS FROM 2 TO 4 AND ACCELERATOR MALFUNCTIONING, I CAREFULLY AND VERY SLOWLY DROVE MY TRUCK TO THE DEALERSHIP THIS MORNING DUE. I HAD SLOW/NO ACCELERATION, CHECK ENGINE LIGHT ON AND TRACTION OFF. IN LAST COUPLE OF MONTHS, HAVE HAD TO PULL OVER TURN IT OFF AND BACK ON FOR IT TO GO AGAIN ONCE BEFORE. I AGREE THAT THE FIX NEEDS TO BE EXTENDED TO ALL YEAR MODELS AND ENGINE SIZE TUNDRAS, NOT JUST UP TO 2011. ALSO AGREE THAT THESE DEFECTS COULD RESULT IN A FATAL SITUATION IF NOT CORRECTED ACROSS THE BOARD.

TRUCK WENT INTO LIMP MODE BECAUSE OF SECONDARY AIR INJECTION VALVE AND AIR PUMP DUE TO STUCK VALVE. THE EXACT SAME PARTS THAT TOYOTA HAS EXTENDED THE WARRANTY ON FOR 2007 THRU 2011 4.6 AND 5.7 V-8'S. DO THEY WAIT ON THE. 2012 MODELS SO MOST WILL GO PAST THE 150,000 MILE EXTENSION. VERY DISAPPOINTED SINCE I BOUGHT THIS TRUCK 3 MONTHS AGO. AND NOW THEY WANT $2800 FOR A 4 HOUR JOB AND ABOUT $600 IN PARTS

TL* THE CONTACT OWNS A 2012 TOYOTA TUNDRA. WHILE MERGING INTO TRAFFIC AT A LOW SPEED, THE VEHICLE WENT INTO LIMP MODE AND HAD TO BE TURNED OFF AND RESTARTED. THE FAILURE OCCURRED MULTIPLE TIMES. THE VEHICLE WAS TAKEN TO GERMAIN TOYOTA OF NAPLES (13315 TAMIAMI TRAIL N, NAPLES, FL 34110, (888) 722-4942) WHERE IT WAS DIAGNOSED THAT THE AIR PUMP ASSEMBLY AND VALVE SHAFT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 119,000.

PLEASE REFER TO TSB 0160-11. TOYOTA RECOGNIZED THAT INFERIOR QUALITY PARTS WERE USED AS PART OF THEIR EMISSIONS SYSTEM AND WROTE THIS TSB AS A REMEDY. THE PROBLEM I HAVE IS THAT THEY CONTINUED TO USE THE FAULTY PARTS BEYOND THE 2011 MODEL YEAR CUT-OFF IN THIS TSB. MY TRUCK IS THROWING THE SAME ENGINE AND EMISSIONS CODES ASSOCIATED WITH THIS TSB. IT ALSO FORCES THE ENGINE INTO A "LOW POWER MODE" GREATLY REDUCING THE ABILITY TO ACCELERATE. LASTLY, IT TURNS OFF TRACTION CONTROL WHICH AFFECTS THE STABILITY OF THE TRUCK. I HAVE FILED A TICKET WITH TOYOTA AND FROM WHAT I HAVE READ ON THE INTERNET, I DON'T EXPECT MUCH HELP. THE PARTS TO REPAIR THIS RUN OVER $1,000 ALONE. THERE ARE MANY OWNERS HAVING THE SAME ISSUE WITH THE TUNDRA, SEQUOIA AND SOME OTHER MODELS (ON THE 4.6L, 4.7L AND 5.7L ENGINES). THE ENGINE CODES USUALLY APPEAR ON...

CHECK ENGINE LIGHT AND TRAC CONTROL LIGHTS CAME ON AROUND 72,000 MILES. TRUCK STARTED TO BE SLUGGISH AND LOSE POWER. THE TRUCK IS IN A CONSTANT 'LIMP' MODE AND FAILS TO PROPERLY ACCELERATE. IT IS DEFINITELY A SAFETY ISSUE AS IT CAUSES UNSAFE CONDITIONS WHEN TRYING TO ACCELERATE INTO A TRAFFIC LANE. TOOK IT TO DEALER AND IT IS AN ISSUE WITH THE SECONDARY AIR INJECTION VALVES AND PUMPS. DEALER QUOTED ME $2184.25 TO FIX. NOT CURRENTLY COVERED UNDER WARRANTY. TOYOTA HAS ADDRESSED THIS ISSUE WITH OTHER YEARS AND MODELS BUT FOR SOME REASON HAS EXCLUDED THE 2012 TUNDRA. I HAVE CONTACTED TOYOTA ON MULTIPLE OCCASIONS AND THEY REFER ME TO NHTSA TO FILE A COMPLAINT. SAME ISSUES REPORTED FOR THE 2012 TOYOTA TUNDRA REFERENCE NHTSA ID NUMBERS: 11129958 11129497 11128204 11109923 11104774 11076034 11075528 11065298 11002406 10994136 10926200 10567001 10489030 HOW MANY COMPLAINTS HAVE TO BE FILED BEFORE TOYOTA...

CHECK ENGINE LIGHT WITH ERROR CODE P2433 0160-11 FAILURE OF AIR INJECTION PUMPS I WAS GETTING ON THE HIGHWAY, THE ENGINE LIGHT COMES ON, THEN THE TRUCK GOES INTO "LIMP MODE." THE LANE I WAS IN MERGED TO THE LEFT. I NEEDED TO ACCELERATE TO AVOID A VEHICLE COMING UP ON MY LEFT, BUT THERE WAS NO POWER DUE TO BEING IN "LIMP MODE." THE VEHICLE COMING UP BEHIND ME HAD TO SLAM ON HIS BRAKES AND I SWERVED OFF THE SHOULDER. THIS COULD HAVE BEEN A VERY BAD ACCIDENT IF THERE WAS A CONCRETE BARRIER IN FRONT OF ME. THIS IS A KNOWN MALFUNCTION AND SHOULD BE A RECALL ITEM. TOYOTA HAS PUBLICALLY SAID THIS IS A WARRANTABLE REPAIR UP TO 150,000 MILES ON 2011 MODEL YEAR TUNDRAS. I HAVE THE EXACT SAME PROBLEM ON MY 2012 (WHICH WAS BUILT IN 2011) BUT TOYOTA IS NOT WILLING TO COVER...

I SEE SEVERAL OTHER COMPLAINTS HERE WITH MY EXACT PROBLEM. THE SECONDARY AIR INJECTION SYSTEM RELAY AND SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE. OBD II CODES P0418 AND P2442. MY EXPERIENCE IS THE SAME AS OTHER COMPLAINTS IN THAT MY TRUCK IS NOW PERMANENTLY IN LIMP MODE AND CANNOT BE DRIVEN DUE TO THESE KNOWN DEFECTIVE PARTS. ON PRE-2012 MODEL TUNDRAS TOYOTA HAS EXTENDED THE REPAIR WARRANTY TO 10 YEARS/150,000 MILES AS THIS IS A WIDESPREAD PROBLEM. FOR SOME REASON THEY WILL NOT INCLUDE LATER YEAR MODEL TRUCKS LIKE MY 2012 4.6 LITER. THIS IS A SAFETY ISSUE AS THE TRUCK SLOWED SEVERELY IN TRAFFIC AND WILL NOT ACCELERATE OR GO UP ANY HILL. CARS BEHIND ME IN TRAFFIC HAD TO SWERVE AROUND ME. I WAS STUCK DEAD AT THE BOTTOM OF A HILL AS THESE CHRONICALLY FAILING PARTS SHUT DOWN THE VEHICLE'S POWER. TOYOTA CUSTOMER CARE HAS DENIED MY...

AIR INJECTION RELAY AND PUMP FAILURE. THIS CONDITION EVENTUALLY LEADS TO "LIMP" MODE CAUSING TRAFFIC SAFETY ISSUES. THIS HAS BEEN A MANUFACTURER RECALL/EXTENDED WARRANTY ITEM ON ALL TUNDRA TRUCKS, UP TO AND INCLUDING SOME 2012 MODELS BUT NOT ALL OF THE 2012'S. BY THE NUMBERS OF FAILURES PRESENT, IT'S OBVIOUS THAT WHAT EVER DESIGN CHANGES TOYOTA DID TO SAY THEY FIXED THE ISSUE AND EXCLUDE SOME OF THE 2012'S WERE INSUFFICIENT. THIS RECALL/EXTENDED WARRANTY SHOULD INCLUDE ALL 2012 MODELS. TOYOTA/DEALERS CLAIM THE PUMPS ARE PART OF EMISSIONS SO THEY ARE NOT COVERED UNDER THE MANUFACTURERS WARRANTIES. REPAIR COST WAS QUOTED AT $3800. OTHER FILED COMPLAINTS: NHTSA ID NUMBER: 11075528 NHTSA ID NUMBER: 11002406 NHTSA ID NUMBER: 10994136

IN EVENING HOURS DECEMBER 2017 I STARTED MY TRUCK AND THE TRACTION CONTROL LIGHT, CHECK ENGINE LIGHT, AND FLASHING 4 LOL WAS ON. DROVE HOME AND HAD CORRODIED BATTERY TERMINAL. RESET LOTT AND WENT AWAY. ON FEBRUARY 23TH, 2018 MY WIFE STARTED TRUCK AND ALL THREE LIFTS WERE ON AGAIN. MADE A APPOINTMENT WITH TOYOTA DEALERSHIP AND THEY STATED HAD WEAK AIR INJECTION PUMP AND CLOSED SWITCH VALVE. THEY WROTE CAUSE OF HIGH WATER. DROVE OFF THE LOT AND THE LOGS CAME ON AGAIN. I'VE NOT EVEN OWN D MY TRUCK FOR TWO YEARS AND NEVER HAD IT THROUGH HIGH WATER. TOYOTA TOLD ME IT WAS NOT UNDER WARRANTY FOR THE AIR SYSTEM, BECAUSE MY TRUCK IS A 2012. THE COST TO FIX THIS WAS $3,000 DOLLARS. ON WAY HOME MY TRUCK WAS IN LIMP MODE AND I BARELY WAS ABLE TO MAKE IT UP A HILL. NOW I'M OUT...

MONDAY, JANUARY 15TH I DROVE AT 65 MPH TO WORK AT AND HOME ON THE FREEWAY WITH NO PROBLEMS. TUESDAY AND WEDNESDAY THE TRUCK WAS STATIONARY DUE TO COLD WEATHER CONDITIONS IN HOUSTON, TEXAS. THURSDAY MORNING THE 18TH, I DROVE AT 65 MPH TO WORK VIA FREEWAY WITH NO PROBLEMS. AFTER LUNCH I DROVE AT 45 MPH BACK TO WORK ON A STREET AND NOTICED THE CHECK ENGINE AND TRACTION LIGHT CAME ON AND SIMULTANEOUSLY THE TRUCK THEN STARTING DRIVING EXTREMELY SLUGGISH AND AND FAR BELOW THE SPEED LIMIT OBSTRUCTING THE FLOW OF TRAFFIC. I CAREFULLY GOT OVER AND DROVE THE TRUCK ONLY ALLOWED AT 30 MPH BACK TO THE OFFICE. AFTER CAREFULLY DRIVING HOME VIA STREET AT THE END OF THE DAY I GOT HOME AND REMOVED THE NEGATIVE WIRE FROM BATTERY AND RE-CONNECTED IT TO SEE IF THIS WOULD RESOLVE THE ISSUE. AFTER DOING SO, THE RESULTS WERE...

I BOUGHT A CERTIFIED USED 2012 PLATINUM TUNDRA WITH 32K MILES AND 2 YEARS LATER WITH REGULAR MAINTENANCE AND A CAM SEAL LEAK FIXED BY THE DEALER, I HAVE FOUND A VERY HARD ROD KNOCK FROM THE ENGINE. I TOOK MY TRUCK BACK TO THE DEALERSHIP TO HAVE THE OIL AND FILTER CHANGED WITH 114.8K MILES ON IT AT THIS TIME AND WAS TOLD I WILL NEED TO REPLACE THE ENGINE. I BELIEVE SOMETHING ISN'T SMELLING RIGHT. DOES ANYONE KNOW ANY ISSUES WITH THE CONNECTION OF THE CAM SEAL LEAK AND THE ROD READY TO BLOW. THE DEALERSHIP SAID IT WOULD BE APPROX. $14K TO REPLACE THE ENGINE WITH 40K MILES ON IT.. REALLY ? AGAIN, I'M SMELLING "NOT MY PROBLEM" FROM THE PEOPLE INVOLVED. WHO CAN I REACH OUT TO ASSIST ME IN RESEARCHING THE CAUSE OF POSSIBLE MIS REPAIR MAINTENANCE ? I APPRECIATE ANYONE'S HELP. BEST REGARDS,

AIR INJECTION RELAY AND PUMP FAILURE. THIS HAS BEEN AN EXTENDED WARRANTY ITEM ON ALL TRUCKS EXCEPT THE MODEL I HAVE WITH THE SAME PARTS AS THE LARGER ENGINE TRUCK. THIS IS A CORPORATE GAME OF NOT ENOUGH COMPLAINTS ON A LESS POPULAR MODEL ENGINE EVEN THOUGH THE PARTS ARE THE SAME AS WHAT IS BEING REPLACED ON SAME YEAR MODELS WITH THE LARGER ENGINE. REPAIR IS ESTIMATED AT $2600

TL* THE CONTACT OWNS A 2012 TOYOTA TUNDRA. WHILE DRIVING APPROXIMATELY 45 MPH, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE AIR INJECTION PUMP AND SWITCHING VALVE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN A MANUFACTURER RECALL. THE APPROXIMATE FAILURE MILEAGE WAS 78,000.

MY 4X4 TOYOTA TUNDRA CREWMAX WITH THE 5.7L ENGINE WAS DIAGNOSED WITH A CAM TOWER LEAK WITH ONLY 15,000 MILES ON IT. FORTUNATELY THE VEHICLE WAS STILL UNDER THE FACTORY POWER TRAIN WARRANTY. TOYOTA MADE THE REPAIR AND PROVIDED A RENTAL CAR FOR ME. I HAVE HEARD THIS IS A COMMON PROBLEM WITH THE 2012-2013 5.7L ENGINE AND I WANT THIS ISSUE TO BE MORE PUBLIC. I WORRY OWNERS OF THIS VEHICLE WILL BE STUCK WITH THE $2,300-$3,000 BILL TO FIX THEIR OWN VEHICLE IF THEIR VEHICLE'S POWER TRAIN WARRANTY HAS EXPIRED. I ALSO WORRY THE ENGINES COULD LEAK OIL ONTO THE EXHAUST MANIFOLD AND CATCH FIRE.