2005 Toyota Sequoia Speed Control & Cruise Problems

After several years of fighting problems with, after braking to a brief stop, the loss of power/abs grinding when accelerating and turning right, now the ABS is completely dysfunctional. Both TRC lights will turn on and usually the parking brake, and when braking at speeds less than 10mph the abs will activate and prevent bring the truck to a stop without pumping them, on dry pavement. When the ABS light turns on, then braking is possible, but all pressure is gone from brake booster and brakes sound like they're grinding, not like the sound of abs engaging. Very dangerous to drive in snow as front brakes work but drive axle doesn't disengage when the brake pedal is depressed. Regular mechanic won't engage with diagnosing issues as he feels the problem is partly computer malfunction and Toyota won't allow for used part mismatching. ABS/ECU is failed.

Malfunction indicator lights - Check engine, VSC off and TRAC off. The vehicle goes into limp mode. The issue is both a mechanical and engineering defect causing the override of the entire AIP system. Parts affected are Air injection pumps, Air switching valves, Air pump inlets/covers, Gaskets/connectors/clamps and Speed sensors.

MY VEHICLE WILL SUDDENLY ACCELERATE FOR NO REASON. THIS SUDDEN "UNINTENDED ACCELERATION OF POWER" COMES ON WITH NO NOTICE. I HAVE ALMOST HIT A PERSON AND HAVE BEEN IN ONE CAR ACCIDENT AS A RESULT. THIS UNINTENDED ACCELERATION PROBLEM HAS OCCURRED ABOUT 10 TO 12 TIMES. THE UNINTENDED ACCELERATION HAS OCCURRED BOTH IN STATIONARY & IN MOTION; AND BOTH ON A CITY STREET AND HIGHWAY. TURNING HAS NOT BEEN AFFECTED BY UNINTENDED ACCELERATION. TOYOTA HAS TESTED AND PROVIDED THE ATTACHED REPORT TO ME BUT WITHOUT ANY INTERPRETATION. MY VEHICLE REPAIR COST BECAUSE OF THE UNINTENDED ACCELERATION WAS $4,529.24. TOYOTA STILL HAS NOT RESPONDED TO THIS DANGEROUS AND LIFE THREATENING SITUATION. THE MANUFACTURER COULD NOT DUPLICATE THE FAILURE. UPDATED 10/04/2017*JS

TL* THE CONTACT OWNS A 2005 TOYOTA SEQUOIA. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE INDEPENDENTLY ACCELERATED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER WHERE IT WAS DIAGNOSED, BUT THE CAUSE OF THE FAILURE WAS UNDETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT DID NOT OFFER ANY ASSISTANCE. THE VIN AND FAILURE MILEAGE WERE UNKNOWN.

I EXPERIENCED A PROBLEM WITH ENGINE WARNING AND VSC TRAC OFF LIGHTS GOING ON. THE CHECK ENGINE LIGHT ALSO CAME ON. MY FAMILY AND I WERE ON A TRIP AND OUR SEQUOIA ALL OF A SUDDEN LOST POWER. IT SLOWED DOWN DRAMATICALLY EVEN THOUGH THE ENGINE WAS FINE. IT WAS A VERY DANGEROUS SITUATION BECAUSE WE WERE ON AN INTERSTATE WHERE THE SPEED IS 70 MPH. I ALSO EXPERIENCED ALL THE BRAKES MAKING A MASSIVE GRINDING NOISE WHILE GOING SLOW INTO A RESTAURANT. (THE BRAKES HAVE LESS THAN 3000 MILES ON THEM.) THE PARKING BRAKE LIGHT ALSO COMES ON PERIODICALLY.

I HAVE VSC TRAC, VSC OFF, AND CHECK ENGINE. IF YOU GIVE IT A LOT OF FUEL, IT JUST SOUNDS LIKE IT WANTS TO GO, BUT IT DOESN'T TRANSLATE INTO POWER IN THE REAR END. I USE MY CODE READER AND IT SHOWED CODES P1441 AND P1444. SAYS I MAY HAVE: A) FAULTY VACUUM SWITCHING VALVE (VSV) FOR AIR INJECTION CONTROL CIRCUIT, B)FAULTY AIR SWITCHING VALVE NUMBER 2, OR C)FAULTY VSV FOR AIR INJECTION SYSTEM. THIS IS THE SECOND TIME THIS HAPPENED TO MY SEQUOIA, AND THIS SEEMS TO BE A RECURRING ISSUES FOR TOYOTA SEQUOIA OWNERS AND IN FACT IT IS A RECURRING ISSUES FOR OTHER MODELS AS WELL. THIS COST ME APPROXIMATELY $2200 LAST TIME AND NOW 2 YEARS LATER IT IS BACK FOR ANOTHER $2200 TO REPAIR. IT'S ALL THE OVER THE INTERNET ABOUT THIS VSC TRAC, VSC OFF, AND CHECK ENGINE, IT NEEDS TO BE RECALLED!

I GET CONSTANT WARNING LIGHTS FOR BRAKE, VSC AND TRAC. THIS IS A VERY COMMON PROBLEM WITH THE SEQUOIA. IT SHUTS DOWN THOSE SAFETY FEATURES.

OYOTA SEQUOIA 2005 ENGINE LIGHT ON ,VSC OFF LIGHT AND TRAC VSC LIGHT ON. THESE COMPLAINTS ARE ABOUT THIS PROBLEMS HTTP://WWW.AUTOMOTIVEFORUMS.COM/T544406-SEQUOIA_VSC_TRAC_PROBLEM.HTML,HTTP://WWW.CARCOMPLAINTS.COM/TOYOTA/SEQUOIA/2003/ELECTRICAL/VSC_TRAC_LIGHTS_ARE_ON.SHTML,HERE ARE TONS OF OTHER COMPLAINTS ON THIS PROBLEM AND IT IS NOT LIMITED TO OUR YEAR MODEL. IF ALL OF THE COMPLAINTS WERE COMPILED IN ONE AREA AND PRESENTED TO THE NTSB, I'M SURE THAT TOYOTA WOULD BE FORCED TO DEAL WITH THIS ISSUE AND CORRECT IT. ITS A BIG ISSUE ESTIMATED COST FOR THAT AROUND $ 2000 TO $ 5000 I DON`T KNOW IF U INVESTIGATE OR NO .I AM NOT GOING TO GET THIS ISSUE REPAIR UNTIL I WILL HEAR FROM YOU .PLEASE TAKE IT SERIOUSLY

WHEN TURNING CORNERS IN MOTION, THE TRACTION CONTROL LIGHT ILLUMINATES CAUSING A LOSS OF BRAKING AND ACCELERATION. THERE IS NOW WAY TO CONTROL THE VEHICLES ACCELERATION/DECELERATION UNTIL THE LIGHT GOES OFF. TYPICALLY LAST ABOUT 3-5 SECONDS. THIS HAPPENS FREQUENTLY EVERY TIME THE VEHICLE IS DRIVEN.

WAS DRIVING AND VEHICLE SLOWED DOWN TO ABOUT 35 40 MPH AND WOULD NOT ACCELERATE PASS 40. WAS IN MOTION ON A CITY STREET

WHILE DRIVING AT 35 MPH, THE CHECK ENGINE LIGHT, VSC OFF LIGHT, VSC TRAC LIGHT, AND THE EMERGENCY BRAKE LIGHT ALL CAME ON AT ONCE, AND THE VEHICLE STOPPED ACCELERATING, AND I EXPERIENCED A DRAMATIC DECREASE IN VEHICLE POWER. I DROVE THE VEHICLE HOME NOTICING A DRASTIC CHANGE IN ACCELERATION AS THE SEQUOIA WOULD NOT ACCELERATE NORMALLY; IT WOULD ACCELERATE AT A SIGNIFICANTLY REDUCED RATE, TOPPING OUT AT 35MPH ON THE FLATS, 30 MPH ON AN INCLINE, I WAS ABLE TO REACH 70MPH GOING DOWN HILL ON A HIGHWAY. SINCE THAT DAY, DURING START UP, THE ENGINE MAKES A HIGH-PITCH VACUUM NOISE, WHICH DROPS OFF AND NORMAL ENGINE SOUND RETURNS. ALL DASHBOARD LIGHTS ARE NORMAL, UNTIL 10-15 SECONDS AFTER START, WHEN THE VSC OFF/VSC TRAC/BRAKE LIGHTS ALL ILLUMINATE, AND REMAIN ON UNTIL THE ENGINE IS TURNED OFF AND THE POOR ACCELERATION AND DECREASE POWER ARE NOW THE NORM. THIS IS A VERY DANGEROUS SAFETY ISSUE SHOULD THIS HAPPEN TO SOMEONE ACCELERATING OUT OF AN INTERSECTION, OR NEEDING MORE POWER ON A HIGHWAY.

TL* THE CONTACT OWNS A 2005 TOYOTA SEQUOIA. THE CONTACT STATED THAT THE BRAKE WARNING LIGHT ILLUMINATED. IN ADDITION, THE VSC TRACK OFF AND THE CHECK ENGINE WARNING LIGHTS ILLUMINATED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 103,000.

I BOUGHT A TOYOTA SEQUOIA 2005 BACK IN 2005 AT RICE TOYOTA DEALER IN GREENSBORO . TODAY , WHEN I WAS DRIVING ON THE STREET AND TURNED ON THE LEFT LIGHT SIGNAL WITH LESS THAN 15 MPH WHILE USING THE BRAKE, I HEARD A VERY LOUD GRINDING NOISE AND THAT INSTANTLY I SAW ALL 3 SIGNS ( TRAC OFF, VSC TRAC, BRAKE ) ON AT THE SAME TIME. I AM ALMOST OUT OF BREATH AND SCARED TO DEATH. THE SIGNS (TRAC OFF, VSC TRAC, BRAKE ) ONCE IN A WHILE APPEARED IN THE PAST AND DISAPPEARED BY THEMSELVE AND I DID NOT HAVE ANY SERIOUS PROBLEMS IN THE PAST , BUT TODAY THE CAR JUST ACTED LIKE A DEAD CAR AT THAT MOMENTARILY. I WAS SO SCARED AND SCARED. *TR

WITHIN THE FIRST TWO WEEKS, AFTER PURCHASING THE VEHICLE, THE "BRAKE" LIGHT, "VSC TRAC" LIGHT, AND "TRAC OFF" LIGHT CAME ON AND THERE WAS A TERRIBLE GRINDING SOUND WHEN ATTEMPTING TO STOP. IT WAS VERY HARD TO STOP BUT LUCKILY I WAS IN A PARKING LOT WHEN IT HAPPENED THE FIRST TIME. THE "BRAKE" LIGHT HAS CONTINUED TO COME ON MULTIPLE TIMES PER WEEK SINCE MAY OF 2015 AND THE OTHER TWO LIGHTS STILL COME ON OCCASIONALLY. IN FACT, ON MY 800 FOOT DRIVE BACK FROM PICKING UP MY LUNCH TODAY, THE "BRAKE" LIGHT WAS ON. EACH TIME THE OTHER 2 COME ON, IT CAUSES THE BREAKS TO GRIND AND IT IS VERY HARD TO STOP. THERE WAS JUST OVER 120,000 MILES ON THE VEHICLE AT PURCHASE. I HAVE READ NUMEROUS FORUMS ONLINE STATING ISSUES WITH THIS MODEL, 2004, AND 2003 MODELS FOR THE SAME ISSUE BUT TOYOTA HAS REFUSED TO DO A RECALL AND EXPECTS CUSTOMERS TO PAY FOR SOMETHING IS OBVIOUSLY AN ISSUE THROUGHOUT THESE PARTICULAR MODELS. I THINK SOMETHING NEEDS TO BE DONE ABOUT THIS ISSUE. I BELIEVE IT IS A SAFETY CONCERN TOYOTA NEEDS TO BE RESPONSIBLE FOR!!!

WHEN SLOWING TO A STOP, MY SEQUOIA PERIODICALLY GRINDS WHEN BRAKING AND THE VSC SENSOR, ABS SENSOR AND TRAC SENSOR LIGHT TURN ON AND STAY ON. *TR

WHEN ACCELERATING FROM LOW SPEED OR STOPS THE SEQUOIA ACTIVATES THE VSC AND THE TRACTION CONTROL SYSTEM AND REFUSES TO ACCELERATE. HAPPENS CONSISTENTLY BUT NOT CONSISTENTLY ENOUGH TO KNOW WHEN TO EXPECT IT. THE TRACTION CONTROL/SKID CONTROL LIGHT ACTIVATES FOR AROUND 5 SECONDS AND THEN VEHICLE RETURNS TO NORMAL OPERATION. IT CAN BE NERVERACKING. FROM ALL MY INVESTIGATION IT SEEMS IDENTICAL TO THE PROBLEMS THAT LED TO THE 2003 SEQUOIA RECALL. I DO BELIEVE THAT THIS IS A SIGNIFICANT SAFETY ISSUE. AGAIN FROM MY RESEARCH THIS IS A VERY COMMON PROBLEM AMONG MANY MODEL YEARS OF SEQUOIAS. *TR

TRAC OFF, VSC TRAC ,ENGINE LIGHT CAME ON...TROUBLE CODE WAS P1444 (SECONDARY AIR INJECTION SYSTEM SWITCHING VALUE STUCK)...VEHICLE HAD PROBLEMS ACCELERATING. REPAIRMAN INDICATED THAT THE AIR INJECTION PUMP/CHECK VALUES NEEDED TO BE REPLACED AND VERY EXPENSIVE. BASED ON OTHER REPORTS IT APPEARS THAT THIS IS A FREQUENT OCCURRENCE AND VEHICLES SHUTTING DOWN ON INTERSTATES. OTHERS HAVE SAID THAT TOYOTA KNOWS ABOUT THIS BUT WON'T ISSUE AN EXTENDED WARRANTY, BUT OFFERS FOR NEWER VEHICLES . OWNED SEVERAL TOYOTAS BEFORE THIS...THIS COULD BE A DEAL BREAKER FOR FUTURE TOYOTAS. *TR

THE VSC TRAC, VSC OFF AND ABS LIGHT WOULD COME ON AND THEN RESET WHEN I TURN OFF & RESTART THE VEHICLE. I CALLED THE TOYOTA DEALER I TAKE MY CAR TO FOR MAINTENANCE AND THEY SAID TO BRING IT IN WHEN THE LIGHTS TURN ON AGAIN. I DID SOME RESEARCH AND WAITED FOR THE LIGHTS TO COME BACK ON. THE LIGHTS CAME ON TODAY & I TOOK IT INTO THE DEALER. THEY SAID THE MASTER CYLINDER AND SKID ECU WAS BAD & NEEDED TO BE REPLACED. THEY QUOTED ME $1900 PLUS LABOR. THIS IS AN EXTREMELY COMMON PROBLEM WITH THE SEQUOIA'S AND I AM VERY SURPRISED & DISAPPOINTED THAT THERE HASN'T BEEN A RECALL DONE FOR THIS PROBLEM. *TR

VSC TRAC, VSC OFF, BRAKE, ABS LIGHTS... ALL ON, ALL AT ONCE. THIS HAS HAPPENED SEVERAL TIMES NOW. IT COMES ON FOR A COUPLE OF DAYS AND THEN RESETS ITSELF NO CODES FOUND. THIS TIME IT CAME ON AGAIN AND LIMITED THE SPEED TO ABOUT 35MPH WHILE MY WIFE WAS DRIVING ON A MAJOR HIGHWAY. SHE WAS ABLE TO GET IT BACK HOME SAFELY THANK GOODNESS. I HAVE BEEN READING ABOUT SIMILAR CASES FOR THIS MODEL AND DO NOT KNOW WHAT TO DO.PLEASE HELP. WE HAVE JUST HAD IT SERVICED ABOUT A MONTH AGO FOR TIMING BELT REPLACEMENT ETC. THIS IS MY WIFE'S PRIMARY VEHICLE AND I CAN'T AFFORD TO PUT ANY MORE MONEY IN THIS. IS THERE A RECALL FOR THIS WITH SO MANY CASES OF THE SAME ISSUE I HAVE READ ABOUT? *TR

THE VSC TRAC LIGHT IS ON , AND ENGINE LIGHT TOO. *TR