Honda Preliminary Evaluation PE22005: No Restart After Auto Start/Stop Engages
2020 Honda Pilot
Engine And Engine Cooling:Engine Engine And Engine Cooling:Engine:Crank/Camshaft Position Sensor Engine And Engine Cooling:Engine:Engine Control Module (Ecu/Ecm):Software Engine And Engine Cooling:Engine:Hard Parts Internal/Mechanical
The Office of Defects Investigation (ODI) has received 221 complaints and several field reports alleging an issue with the Auto Start/Stop feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the Auto Start/Stop function engaged. Some of the complainants allege that a jump was required for the vehicle to restart. The subject vehicles are equipped with a 3.5L engine coupled with a 9-speed automatic transmission. To help improve fuel efficiency, the Pilot Touring and Elite vehicles are equipped with Auto Start/Stop capability. When the system is enabled by the driver and certain operating conditions are met, the Auto Start/Stop system will automatically shut off the engine when the vehicle comes to a complete stop. The engine is automatically restarted when the driver releases the brake pedal after a stop.ODI met with Honda on various occasions on this issue. Honda indicated that per the information provided from NHTSA complaints and TREAD (Transportation Recall Enhancement, Accountability and Documentation) reports, they have found a correlation with customers' allegations for the Auto Start/Stop failure to restart the vehicle when the system is activated. Honda also indicated other Honda models (Honda Odyssey, Acura TLX & Acura MDX) with the 3.5L engines equipped with the 9-speed automatic transmissions experience the same failure mode.ODI is opening this Preliminary Evaluation (PE) to determine the scope and severity of the potential problem as well as to fully assess the potential safety related issues.The ODI reports cited above is available to review online at NHTSA.gov under the identification numbers:11460988, 11460883, 11460447, 11459660, 11458735, 11458381, 11457155, 11456934, 11455403 11455401, 11453319, 11453093, 11452332, 11452321, 11451808, 11451347, 11450957, 11450663 11450345, 11449116, 11447644, 11447349, 11446934, 11445511, 11442641, 11442620, 11442535 11442468, 11441844, 11441660, 11441235, 11441204, 11440646, 11439912, 11439645, 11439407 11439010, 11438187, 11438135, 11438002, 11437665, 11437316, 11437030, 11437015, 11436370 11435590, 11435157, 11434390, 11433928, 11433791, 11433774, 11433769, 11432995, 11432947 11432684, 11431787, 11431074, 11430682, 11430372, 11429701, 11429333, 11429157, 11428453 11428450, 11428196, 11428155, 11427940, 11426998, 11426596, 11426261, 11426003, 11425989 11425707, 11425332, 11425299, 11424916, 11424849, 11424823, 11424701, 11424476, 11424313 11423874, 11423376, 11423296, 11423256, 11422948, 11422805, 11422582, 11422535, 11422238 11421517, 11420943, 11420818, 11420073, 11419761, 11418363, 11418287, 11418102, 11418046 11417954, 11417464, 11416669, 11416520, 11416230, 11415596, 11415538, 11415513, 11415511 11415486, 11415484, 11415459, 11415456, 11415177, 11415162, 11414749, 11414726, 11414599 11413697, 11413488, 11413337, 11408277, 11407868, 11407827, 11407811, 11407328, 11406685 11406052, 11406010, 11405300, 11404268, 11404093, 11402786, 11400245, 11399267, 11397177 11396367, 11394835, 11390028, 11389479, 11389300, 11388092, 11387715, 11387418, 11386763 11386291, 11383861, 11378435, 11374730, 11374396, 11373973, 11372622, 11366532, 11366226 11364808, 11364796, 11364625, 11363493, 11362991, 11362177, 11362102, 11362082, 11361413 11361248, 11360107, 11355417, 11355394, 11354935, 11354559, 11354433, 11354112, 11354000 11353603, 11350074, 11349675, 11348637, 11343095, 11342856, 11342592, 11342271, 11339759 11339748, 11339432, 11339322, 11337408, 11337102, 11331934, 11331621, 11329220, 11329145 11329058, 11327864, 11327319, 11326789, 11326397, 11326247, 11325536, 11324266, 11323258 11321898, 11320101, 11319867, 11317205, 11312211, 11311877, 11311010, 11310802, 11307006 11306743, 11299470, 11298616, 11298219, 11292495, 11280570, 11278720, 11278706, 11278088 11278004, 11277093, 11271668, 11271229, 11271053.
