2001 Toyota Sienna Electrical Problems

Your horn stops working when it rains or when you drive through water, and it takes about a day for it to dry out before it works again. This can be a safety concern since you won't be able to alert other drivers to potential hazards in wet conditions. The fix will likely involve inspecting and potentially replacing the horn assembly or its electrical connections to make it weather-resistant.

Your passenger-side sliding door warning light stays on, even when the door is fully closed. This warning light stayed on continuously and drained your battery over time. The dealer identified that the sliding door's electronic control unit is faulty and needs to be replaced to fix the problem.

The steel cable that operates your power sliding door on the right side snapped while opening electronically, leaving the door stuck and unable to open more than a foot. This forced passengers, including children, to exit through the driver's side door into traffic, creating a safety hazard. The door became stuck until the loose cable was manually cut away, and now it only works as a manual door. Fixing this will require replacing the entire power sliding door motor and cable system.

Your rear automatic sliding door won't open or close, and it can't be operated manually from either inside or outside the vehicle. You've noticed other electrical problems developing on your vehicle as well. The repair will likely involve diagnosing the door's electrical motor, switches, and control module to identify and replace the faulty component.

Your dashboard lights and interior lights are flickering on and off. Your driver's seat electric controls are working intermittently instead of reliably, and the radio's backlight and cruise control light on your instrument cluster have stopped working. These issues suggest an electrical connection or power distribution problem that may require diagnosis of your vehicle's electrical system and battery connections.

THE LEFT AND RIGHT REAR PASSENGER DOORS FAILED TO OPEN DUE TO BREAKAGE OF THE CABLE. I AM UNCERTAIN OF WHETHER THE CHILD SAFETY LOCKS WERE ENGAGED, HOWEVER, THE DOORS WILL NOT OPEN WIDER THAN APPROX. 6". REAR PASSENGERS HAD TO CRAWL OUT OF THE VAN VIA THE DRIVER'S OR FRONT PASSENGER DOOR. I AM ELATED THAT THE FAILURE OF THE DOORS DID NOT OCCUR DURING A HAZARDOUS CONDITION, SINCE THIS WOULD HAVE PLACED THE REAR OCCUPANTS IN EXTREME DANGER. IF TOYOTA AND NHTSA WAS AWARE THAT THERE IS A FAILURE IN THE CABLES AND THE MANUAL RELEASE OF THE REAR DOORS, THERE SHOULD HAVE BEEN A SAFETY ALERT AND/OR RECALL OF THE VEHICLES FOR REPAIR OF THE VANS. THE FAILURE OF THE DOORS IS NOT SIMPLY A MATTER OF COSMETIC ISSUES, IT IS POTENTIALLY HAZARDOUS AND LIFE THREATENING. AT A MINIMUM, THE DOORS SHOULD HAVE ALLOWED FOR MANUAL OPENING AND CLOSING, IF THE CABLES SHOULD BREAK. THE BREAKING OF THE CABLE, ALONG WITH THE INABILITY TO OPEN THE DOOR IS A DEFECT IN WORKMANSHIP, SINCE THE DOOR DID NOT OPEN TO ALLOW THE PASSENGERS TO EXIT THE VEHICLE. I AM REQUESTING, ALONG WITH ALL OF THE OTHER OWNERS WHO HAVE REGISTERED COMPLAINTS, THAT THE AGENCY INVESTIGATE THIS MATTER. AT A MINIMUM, THE DOORS SHOULD DEFAULT TO MANUAL MODE. *TR

POWER SLIDING DOOR STUCK. *TT

TL*THE CONTACT OWNS A 2001 TOYOTA SIENNA. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 40 MPH, THE HORN WAS ENGAGED AND FAILED TO FUNCTION. THE FAILURE OCCURRED FIFTEEN MINUTES AFTER THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS INSPECTED BY TWO INDEPENDENT MECHANICS. THE CONTACT WAS INFORMED THAT THE ELECTRICAL COMPONENTS UNDER THE AIR BAG REQUIRED REPLACEMENT. THE FAILURE CONTINUED TO OCCUR. THE VEHICLE HAD NOT BEEN REPAIRED WHEN THE COMPLAINT WAS FILED. THE FAILURE MILEAGE WAS 87,000. THE CURRENT MILEAGE WAS 93,000.

2001 SIENNA BOUGHT NEW FROM DEALER. DRIVER SIDE PASSENGER POWER SLIDE DOOR HAD PROBLEMS WITH 'SWITCH' AND ECU 8/2002, 11/2003, 1/2004, 7/2004, 7/2006 4/2007. THOSE ARE JUST THE TIMES I BROUGHT IT IN. OTHER TIMES I JUST LET IT GO FOR A WHILE. TOYOTA FIXED PART UNTIL WARRANTY WAS UP. NOW THEY WANT ME TO PAY TO REPLACE THE PARTS -- PARTS THAT CONTINUE TO FAIL. SLIDING DOOR EITHER DOES NOT OPEN VIA POWER BUTTON, OR WILL NOT CLOSE ALL THE WAY. SAFETY ISSUE WHEN CAN NOT GET DOOR TO CLOSE ALL THE WAY. NOW THE OTHER POWER SLIDER DOOR IS ALSO NOT WORKING. I WROTE TO TOYOTA 5/2007, THEY NEVER EVEN ACKNOWLEDGED MY LETTER. *TR

COMPLAINT REGARDING THE 2001 TOYOTA SIENNA DRIVER'S SIDE DOOR CONTINUOUSLY OPENS AND CLOSES.*MR THE ONLY WAY TO STOP THE DOOR WAS TO DISENGAGE THE POWER AND CLOSE IT MANUALLY. THE DEALER DETERMINED THAT THE MOTOR THAT OPERATES THE POWER DOOR AND THE ECU NEEDED TO BE REPLACED AT A COST OF $1939. THE MANUFACTURER HAS AGREED TO ASSIST WITH THE COST OF THE REPAIR, HOWEVER THE CONSUMER'S PORTION IS STILL QUIT COSTLY. *NM

VSC AND ENGINE CHECK LIGHT CAME ON. WHEN I BROUGHT TO DEALER. THEY TOLD ME GAS CAP WAS NOT ON TIGHT. I THOUGHT THAT WAS AN INCORRECT DIAGNOSIS SINCE THE CAP WAS ON AND I HAD BEEN FILLING MY GAS FOR MORE THAN 3 YEARS. *AK THEY RESET THE VSC LIGHT AND GAVE ME CAR BACK AFTER CHARGING ME $98. LIGHT CAME BACK ON ONE WEEK LATER.

1. ELECTRIC SLIDING DOOR OPENS WHILE DRIVING. INTERIOR LIGHTS WON'T SHUT OFF WHILE DRIVING. CHECK ENGINE LIGHT STAYS ON. 2. DRIVER DISTRACTION. 3. TOYOTA "RESETS THE BRAIN" BUT IT IS JUST A MATTER OF TIME BEFORE IT FAILS AGAIN. *AK

VEHICLE SKID CONTROL COMPUTER BROKE AND NEEDED TO BE REPLACED ($2000). *AK

OUR 2001 TOYOTA SIENNA HAS PROBLEM WITH THE ENTIRE ELECTRICAL SYSTEM. THE LIGHTS, INTERIOR AND EXTERIOR, AS WELL AS ALL ELECTRICAL OUTLETS PULSATE. THEY CONTINUOUSLY FLUXUATE FROM DIM TO BRIGHT. THERE ARE EVEN TIMES WHEN I HAVE IT ON CRUISE AND PRESS ON THE BRAKE THAT THE RADIO GOES OFF TEMPORARILY. TOYOTA HAS ATTEMPTED TO FIX IT BUT NOW THEY TELL US THAT THIS IS COMMON WITH THE SIENNAS AND AVOLANS THAT HAVE AUTOMATIC CLIMATE CONTROL. THEY TELL US THAT THIS IS NOT A SAFETY ISSUE THAT I JUST NEED TO DRIVE IT AS IS. WE CERTAINLY DISAGREE. SINCE THIS EFFECTS THE ENTIRE ELECTIRCAL SYSTEM, WE ARE CONCERNED THAT WE MAY HAVE A COMPLETE POWER FAILURE WHILE TRAVELING. WE ALSO, ARE CONCERNED SINCE THIS IS AN ELECTRICAL MALFUNCTION, WE DO NOT WANT TO EVER EXPERIENCE AN ELECTRICAL FIRE. FINALLY, WE ARE CONCERNED ABOUT DRIVING AT NIGHT WITH LIGHTS THAT RAPIDLY FLUXUATE BETWEEN DIM AND NORMAL. I POSTED THE DATE AS MAY BECAUSE THIS IS WHEN WE FIRST REALISTED THIS WAS HAPPENING. WE BOUGHT THE CAR IN MARCH.

VEHICLE SHUT OFF WITHOUT PRIOR WARNING. BATTERY/ ALARM SYSTEM/ KEY, AND STARTER WERE CHECKED. *AK