Technical Service Bulletins (TSBs) for the 2012 Highlander Hybrid are official communications between Toyota & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
TT: THE VEHICLE MAY BE DIFFICULT TO START OR HAVE AN ABNORMALLY LOW OR ROUGH IDLE AFTER THE BATTERY HAS BEEN DISCONNECTED OR POWER TO THE ENGINE ECM HAS BEEN INTERRUPTED. Read More »
"TSB: FLASH REPROGRAMMING ALLOWS THE ECU SOFTWARE TO BE UPDATED WITHOUT REPLACING THE ECU. FLASH CALIBRATION UPDATES FOR SPECIFIC VEHICLE MODELS/ECUS ARE RELEASED AS FIELD-FIX PROCEDURES DESCRIBED IN INDIVIDUAL SERVICE BULLETINS. Read More »
TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. EXHAUST GAS CONTROL ACTUATOR MAY POSSIBLE DEVELOP COOLANT LEAK CAUSING CHECK ENGINE LAMP AND WATER TEMP INDICATOR LAMP TO ILLUMINATE. Read More »
TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. Read More »
TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. Read More »
TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DURING TIME OF MANUFACTURING, THE REAR DRIVESHAFT WOULD DISENGAGE FROM INBOARD JOINT ASSEMBLY, DUE TO AN ASSEMBLY ERROR, AND VIBRATE AND RATTLE INSIDE OF INBOARD JOINT, CAUSING LOUD ... Read More »
TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. Read More »
TT: HV BATTERIES HAVE LIQUID FILLED CELL MODULES, TO PREVENT LEAKAGE FROM CELLS, IT IS VERY IMPORTANT TO CONFIRM THE PROPER ORIENTATION MARK OF THE DRC. Read More »
TSB: THIS BULLETIN INCLUDES BASIC PROCEDURES FOR PERFORMING A RESCUE CHARGE ON NI-MH HIGH VOLTAGE (HV) BATTERIES. THIS BULLETIN SHOULD BE USED IN CONJUNCTION WITH THE REPAIR MANUAL WHILE PERFORMING RESCUE CHARGE. Read More »
TT: THE VEHICLE MAY BE DIFFICULT TO START OR HAVE AN ABNORMALLY LOW OR ROUGH IDLE AFTER THE BATTERY HAS BEEN DISCONNECTED OR POWER TO THE ENGINE ECM HAS BEEN INTERRUPTED. Read More »
"TSB: FLASH REPROGRAMMING ALLOWS THE ECU SOFTWARE TO BE UPDATED WITHOUT REPLACING THE ECU. FLASH CALIBRATION UPDATES FOR SPECIFIC VEHICLE MODELS/ECUS ARE RELEASED AS FIELD-FIX PROCEDURES DESCRIBED IN INDIVIDUAL SERVICE BULLETINS. Read More »
TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. Read More »
TSB: THIS BULLETIN INCLUDES BASIC PROCEDURES FOR PERFORMING A RESCUE CHARGE ON NI-MH HIGH VOLTAGE (HV) BATTERIES. THIS BULLETIN SHOULD BE USED IN CONJUNCTION WITH THE REPAIR MANUAL WHILE PERFORMING RESCUE CHARGE. Read More »
TOYOTA: ACCELERATOR PEDAL SENSOR ASSEMBLY INFORMATION REGARDING THE INSPECTION, REMOVAL, AND INSTALLATION, IF LUBRICATION OR OIL, IS APPLIED. *PE Read More »
TSB: ON SOME VEHICLES, WHEN RAPGARD? IS REMOVED, THE PAINT MAY HAVE A STAINED APPEARANCE. THESE STAINS APPEAR TO BE UNDER THE CLEAR COAT (REPAINTING THIS AREA IS NOT NECESSARY). Read More »
TT: HV BATTERIES HAVE LIQUID FILLED CELL MODULES, TO PREVENT LEAKAGE FROM CELLS, IT IS VERY IMPORTANT TO CONFIRM THE PROPER ORIENTATION MARK OF THE DRC. Read More »
TT: CUSTOMERS MAY EXPERIENCE CONNECTIVITY ISSUES WHEN THE FOLLOWING CONDITIONS ARE MET: THE CUSTOMER'S IPHONE IS OPERATING ON IOS9 FIRMWARE. THE CUSTOMER'S IPHONE IS CONNECTED TO THE VEHICLE VIA BLUETOOTH. Read More »
TT: CUSTOMERS MAY EXPERIENCE CONNECTIVITY ISSUES WHEN THE FOLLOWING CONDITIONS ARE MET: THE CUSTOMER'S IPHONE IS OPERATING ON IOS9 FIRMWARE. THE CUSTOMER'S IPHONE IS CONNECTED TO THE VEHICLE VIA BLUETOOTH. Read More »
