Service bulletins for the 2016 Mazda Mazda6
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
670 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Engine are shown. Show all
| 01-005-17-3305 | 2017-08-10. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicles may exhibit oil residue on the engine front cover from seepage around the joint portion (A) between the cylinder block and head. It becomes very noticable with dust adhesion. In some cases, the area of oil residue extends down to around the joint portion (B) between the engine front cover and the oil pan. |
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| 01-002-17-3299a | 2017-08-10. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. When the engine is started for the first time after parking the vehicle overnight in cold conditions (below 32 degrees Fahrenheit / 0 degrees Celsius), some vehicles may exhibit a rough idle and/or the check engine light on with any of the following DTC(s) stored in memory.?P0300 - Random misfire detected ?P0301 - Cylinder No.1 misfire detected ?P0302 - Cylinder No.2 misfire detected ?P0303 - Cylinder No.3 misfire detected ?P0304 - Cylinder No.4 misfire detected This may be caused by frozen water accumulated in the main silencer, restricting exhaust flow. |
| 05-002-15-3019F | 2017-06-08. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH ONE OR MORE OF THESE DTCS STORED IN THE TCM MEMORY (P0842, P0847, P0872, P0877, P0780, P1738). • P0842:00 - OIL PRESSURE SWITCH NO. 1 (OIL PRESSURE SWITCH B) STUCK ON • P0847:00 - OIL PRESSURE SWITCH NO. 2 (OIL PRESSURE SWITCH A) STUCK ON • P0872:00 - OIL PRESSURE SWITCH NO. 3 (OIL PRESSURE SWITCH A) STUCK ON • P0877:00 - OIL PRESSURE SWITCH NO. 4 (OIL PRESSURE SWITCH B) STUCK ON • P0780:00 - GEAR SHIFTING MALFUNCTION • P1738:00 AUTOMATIC TRANSAXLE INTERNAL MALFUNCTION THIS IS CAUSED BY THE OIL PRESSURE SWITCH A AND/OR B AT THE CONTROL VALVE BODY TEMPORARILY OR PERMANENTLY GETTING STUCK DUE TO CONTAMINATION ENTERING THE PASSAGE. TO CORRECT THE PROBLEM, SOME MASS PRODUCTION CHANGES HAVE BEEN IMPLEMENTED TO REDUCE CONTAMINATION AND IMPROVE THE DTC DIAGNOSTIC LOGIC. NOTE: IF THE VEHICLE ALSO HAS A DELAYED ENGAGEMENT CONCERN, THIS TSB IS NOT APPLICABLE. REFER TO MS3 ONLINE INSTRUCTIONS OR WORKSHOP MANUAL FOR PROPER DIAGNOSIS AND REPAIR PROCEDURE. |
| 01-014-15-3055A | 2017-06-08. Service bulletin. ENGINE. FREQUENT ENGINE STARTS UNDER EXTREMELY COLD AMBIENT TEMPERATURES MAY RESULT IN OIL SEEPAGE FROM THE ENGINE OIL PRESSURE SWITCH. THIS CONCERN MAY BE CAUSED BY A LACK OF DURABILITY OF THE OIL PRESSURE SWITCH UNDER THESE CONDITIONS. TO CORRECT THE PROBLEM, THE OIL PRESSURE SWITCH HAS BEEN IMPROVED TO INCREASE THE DURABILITY IN COLD AMBIENT TEMPERATURES. |
| 01-023-15-3084B | 2017-06-08. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE MIL ON AND DTC P0015 / P0524 STORED IN MEMORY. • P0015:00 - EXHAUST CMP TIMING OVER-RETARDED • P0524:00 - ENGINE OIL PRESSURE TOO LOW THIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OCV. THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A MIL ILLUMINATION, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-023-15-3084A | 2017-06-08. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE MIL ON AND DTC P0015 / P0524 STORED IN MEMORY. • P0015:00 - EXHAUST CMP TIMING OVER-RETARDED • P0524:00 - ENGINE OIL PRESSURE TOO LOW THIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OCV. THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A MIL ILLUMINATION, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-016-15-3067 | 2017-06-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0421:00 (CATALYTIC CONVERTER SYSTEM) WITHOUT EXPERIENCING POOR ENGINE PERFORMANCE OR MISFIRE (MITSUBISHI PCM ONLY). THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM THAT MAY DETECT FALSE ERROR OF THE A/F SENSOR, RESULTING IN FALSE DETECTION OF P0421. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED. CATALYST MONITOR FUNCTION EXPLANATION • THE PCM MONITORS THE OXYGEN STORAGE AMOUNT PROPORTIONAL TO CATALYTIC CONVERTER PURIFICATION CHARACTERISTIC. • THE PCM STARTS TO MONITOR AFTER RECOVERY (FUEL INJECTION STARTS) FROM FUEL CUT CONTROL. • THE PCM TEMPORARILY CHANGES THE TARGET AIR/FUEL RATIO TO RICH AT FUEL CUT RECOVERY, AND DETECTS THE RESPONSE TIME UNTIL THE HO2S OUTPUT SIGNAL OUTPUTS THE VOLTAGE ON THE RICH SIDE. • IF THE CATALYTIC CONVERTER PURIFICATION CHARACTERISTIC DETERIORATES, THE AMOUNT OF THE TIME UNTIL THE HO2S DETECTS THE VOLTAGE ON THE RICH SIDE IS SHORTER COMPARED TO THE NORMAL PURIFICATION CHARACTERISTIC AS SHOWN. THE PCM DETECTS A CATALYTIC CONVERTER MALFUNCTION USING THIS CHARACTERISTIC. |
| 01-018-15-3070 | 2017-06-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P2610 AND P2507 STORED IN MEMORY AFTER ENGINE START AND ROOM FUSE 15A (A) REMOVED. • P2610:00: INSTRUMENT CLUSTER INTERNAL ENGINE OFF TIMER PERFORMANCE PROBLEM • P2507:00: PCM BATTERY VOLTAGE LOW INPUT AS A PAST MALFUNCTION, THE CUSTOMER WILL NOT NOTICE IT (NO WARNING LIGHT ILLUMINATED), BUT THE DTC MAY BE FOUND DURING A VEHICLE SERVICE. P2507 IN THIS SITUATION IS ONLY APPLICABLE ON 2016 AND LATER MODELS. THIS IS CAUSED BY THE ENGINE BEING STARTED 3 OR MORE TIMES AFTER A SHORT DURATION OF ENGINE OFF (LESS THAN 15 SECONDS) WITH THE ROOM FUSED REMOVED. |
| 01-019-15-3072 | 2017-06-07. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME CUSTOMER USING “FLEXIBLE” SETTING FOR OIL CHANGE IN THE MAINTENANCE MONITOR MAY NOTICE THAT THE OIL CHANGE DUE NOTIFICATION WILL NOT WORK BECAUSE OF IMPROPER CONTROL LOGIC OF THE PCM. THIS TSB IS APPLICABLE FOR THE FOLLOWING CASES. • THE OIL CHANGE DUE NOTIFICATION DOES NOT COME ON, EVEN AFTER MILEAGE EXCEEDED 10,000 MILES. • OIL LIFE IN THE CENTER DISPLAY IS STILL LESS THAN 40% EVEN THOUGH THE MILEAGE EXCEEDED 7,000 MILES. TO DISPLAY “FLEXIBLE” SETTING AND “OIL LIFE” ON THE CENTER SCREEN, SELECT THE “APPLICATIONS” SCREEN, “MAINTENANCE”, THEN “OIL CHANGE” TAB. FOR COMPLETE DETAILS, REFER TO THE “MAINTENANCE MONITOR OPERATION PROCEDURE” IN THE WORKSHOP MANUAL. |
| 01-023-15-3084 | 2017-05-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE MIL ON AND DTC P0015 / P0524 STORED IN MEMORY. • P0015:00 - EXHAUST CMP TIMING OVER-RETARDED • P0524:00 - ENGINE OIL PRESSURE TOO LOW THIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OCV. THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A MIL ILLUMINATION, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-009-16-3172 | 2017-05-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE CHECK ENGINE LIGHT ON AND DTC P0015 / P0524 STORED IN MEMORY.•P0015:00 - EXHAUST CMP TIMING OVER-RETARDED•P0524:00 - ENGINE OIL PRESSURE TOO LOWTHIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OIL CONTROL VALVE (OCV). THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A CHECK ENGINE LIGHT ON, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-014-15-3055 | 2017-05-17. Service bulletin. ENGINE. FREQUENT ENGINE STARTS UNDER EXTREMELY COLD AMBIENT TEMPERATURES MAY RESULT IN OIL SEEPAGE FROM THE ENGINE OIL PRESSURE SWITCH. THIS CONCERN MAY BE CAUSED BY A LACK OF DURABILITY OF THE OIL PRESSURE SWITCH UNDER THESE CONDITIONS. TO CORRECT THE PROBLEM, THE OIL PRESSURE SWITCH HAS BEEN IMPROVED TO INCREASE THE DURABILITY IN COLD AMBIENT TEMPERATURES. ALL SKYACTIV ENGINES EQUIPPED WITH OIL PRESSURE SWITCH PART NUMBER PE01-18-501A ARE APPLICABLE TO THIS ISSUE. |
| 01-009-16-3172A | 2017-02-28. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE CHECK ENGINE LIGHT ON AND DTC P0015 / P0524 STORED IN MEMORY.•P0015:00 - EXHAUST CMP TIMING OVER-RETARDED•P0524:00 - ENGINE OIL PRESSURE TOO LOWTHIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OIL CONTROL VALVE (OCV). THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A CHECK ENGINE LIGHT ON, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-011-16-3139 | 2017-02-28. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE CHECK ENGINE LIGHT ON AND DTC P0015 / P0524 STORED IN MEMORY.•P0015:00 - EXHAUST CMP TIMING OVER-RETARDED•P0524:00 - ENGINE OIL PRESSURE TOO LOWTHIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OIL CONTROL VALVE (OCV). THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A CHECK ENGINE LIGHT ON, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 01-010-16-3185 | 2017-02-28. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0421:00 (CATALYTIC CONVERTER SYSTEM) WITH-OUT EXPERIENCING POOR ENGINE PERFORMANCE OR MISFIRE (MITSUBISHI PCM ONLY).THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM THAT MAY DETECT FALSE ERROR OF THE A/F SENSOR, RESULTING IN FALSE DETECTION OF P0421. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED.CATALYST MON-ITOR FUNCTION EXPLANATION•THE PCM MONITORS THE OXYGEN STORAGE AMOUNT PROPORTIONAL TO CATALYTIC CONVERTER PURIFICATION CHARACTERISTIC.•THE PCM STARTS TO MONITOR AFTER RECOVERY (FUEL INJECTION STARTS) FROM FUEL CUT CONTROL.•THE PCM TEMPORARILY CHANGES THE TARGET AIR/FUEL RATIO TO RICH AT FUEL CUT RECOVERY, AND DETECTS THE RESPONSE TIME UNTIL THE HO2S OUTPUT SIGNAL OUTPUTS THE VOLTAGE ON THE RICH SIDE. IF THE CATALYTIC CONVERTER PURIFICATION CHARACTERISTIC DETERIORATES, THE AMOUNT OF THE TIME UNTIL THE HO2S DETECTS THE VOLTAGE ON THE RICH SIDE IS SHORTER COMPARED TO THE NORMAL PURIFICATION CHARACTERISTIC AS SHOWN. THE PCM DETECTS A CATALYTIC CONVERTER MALFUNCTION USING THIS CHARACTERISTIC. |
| 01-011-16-3139A | 2017-02-24. Service bulletin. ENGINE. WHEN THE ENGINE IS STARTED FOR THE FIRST TIME AFTER PARKING THE VEHICLE OVERNIGHT IN COLD CONDITIONS (BELOW 32 DEGREES FAHRENHEIT / 0 DEGREES CELSIUS), SOME VEHICLES MAY EXHIBIT A ROUGH IDLE AND/OR THE CHECK ENGINE LIGHT ON WITH ANY OF THE FOLLOWING DTC(S) STORED IN MEMORY.•P0300 - RANDOM MISFIRE DETECTED•P0301 - CYLINDER NO.1 MISFIRE DETECTED•P0302 - CYLINDER NO.2 MISFIRE DETECTED •P0303 - CYLINDER NO.3 MISFIRE DETECTED •P0304 - CYLINDER NO.4 MISFIRE DETECTED THIS MAY BE CAUSED BY FROZEN WATER ACCUMULATED IN THE MAIN SILENCER, RESTRICTING EXHAUST FLOW. |
| 01-009-16-3172B | 2017-02-24. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE CHECK ENGINE LIGHT ON AND DTC P0015 / P0524 STORED IN MEMORY.•P0015:00 - EXHAUST CMP TIMING OVER-RETARDED•P0524:00 - ENGINE OIL PRESSURE TOO LOWTHIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OIL CONTROL VALVE (OCV). THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A CHECK ENGINE LIGHT ON, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
| 1080M | 2017-02-23. Service bulletin. ENGINE. IF AN ENGINE ASSEMBLY IS REPLACED AFTER A CATASTROPHIC INTERNAL MECHANICAL FAILURE, CLEAN THE INTAKE MANIFOLD INTERNALLY BEFORE INSTALLING A REPLACEMENT ENGINE ASSEMBLY. IF THE INTAKE MANIFOLD IS NOT CLEANED PROPERLY, THE REPLACEMENT ENGINE MAY FAIL PREMATURELY.METALLIC DEBRIS FROM THE OLD ENGINE (WITH CATASTROPHIC INTERNAL MECHANICAL FAILURE) MAY REST INSIDE THE INTAKE MANIFOLD. WHEN THE NEW ENGINE ASSEMBLY IS INSTALLED, DEBRIS IN THE INTAKE MANIFOLD WILL BE INGESTED INTO THE NEW ENGINE AND CAUSE INTERNAL DAMAGE.CLEAN THE INTAKE MANIFOLD INTERNALLY TO REMOVE ANY DEBRIS FROM OLD ENGINE BEFORE INSTALLING THE NEW REPLACEMENT ENGINE ASSEMBLY.IF THE INTAKE MANIFOLD CANNOT BE PROPERLY CLEANED INTERNALLY, REPLACE IT. |
| 01-016-16-3220 | 2017-02-23. Service bulletin. ENGINE. THERE IS A CONCERN THAT SOME WATER PUMPS ARE BEING REPLACED THAT ARE NOT FAULTY, DUE TO SIGNS OF A VERY SMALL COOLANT LEAK FROM THE BLEED HOLE. THIS SERVICE BULLETIN IS TO INFORM YOU ABOUT THE WATER PUMP SEALING MECHA-NISM AND THE CRITERIA IF REPLACEMENT IS NECESSARY OR NOT. |
| 01-017-16-3242 | 2017-02-23. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE AN ENGINE THAT RUNS ROUGH AND THE CHECK ENGINE LIGHT ON WITH DTCS P0201 AND P0204 OR P0202 AND P0203.NOTE:ENGINE MISFIRE RELATED DTCS (P0301, P0302, P0303, P0304) ARE USUALLY STORED AT THE SAME TIME.P0201:00: FUEL INJECTOR CIRCUIT/OPEN CYLINDER NO.1P0202:00: FUEL INJECTOR CIRCUIT/OPEN CYLINDER NO.2P0203:00: FUEL INJECTOR CIRCUIT/OPEN CYLINDER NO.3P0204:00: FUEL INJECTOR CIRCUIT/OPEN CYLINDER NO.4THIS CONCERN MAY BE CAUSED BY AN INTERNAL FAILURE OF THE PCM (DENSO PRODUCED ONLY). TO CORRECT THE CONCERN, THE PCM INTERNAL FAILURE HAS BEEN ELIMINATED. |
| 1011M | 2017-02-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. SOME CUSTOMERS MAY COMPLAIN ABOUT A CHECK ENGINE LIGHT ON WITH DTC P0137 (HO2S CIRCUIT LOW INPUT) STORED IN PCM MEMORY. THIS MAY BE CAUSED BY REAR HARNESS DAMAGE FROM AN AFTERMARKET ALARM SYSTEM INSTALLATION. |
| 1102M | 2017-02-21. Service bulletin. ENGINE. WORKSHOP MANUAL EVAP SYSTEM LEAK INSPECTION USING THE M-MDS HAS BEEN DISCONTINUED FOR SOME MODELS. INSTEAD, THE WORKSHOP MANUAL EVAP SYSTEM LEAK INSPECTION USING EVAP LEAK TESTER WILL BE USED TO TROUBLESHOOT EVAP SYSTEM LEAKS. |
| RF-16-03 | 2017-02-18. Service bulletin. ENGINE. THE 2016 CX-9 WITH THE SKYACTIV®-G 2.5T ENGINE REQUIRES A UNIQUE OIL FILTER (PY8W-14-302) WHICH IS NOT INTERCHANGEABLE WITH OTHER SKYACTIV® OIL FILTERS. THE UNIQUE OIL FILTER CAN BE IDENTIFIED WITH TWO WHITE BANDS AS SHOWN BELOW. |
| 01-011-16-3139A | 2017-02-17. Service bulletin. ENGINE. WHEN THE ENGINE IS STARTED FOR THE FIRST TIME AFTER PARKING THE VEHICLE OVERNIGHT IN COLD CONDITIONS (BELOW 32 DEGREES FAHRENHEIT / 0 DEGREES CELSIUS), SOME VEHICLES MAY EXHIBIT A ROUGH IDLE AND/OR THE CHECK ENGINE LIGHT ON WITH ANY OF THE FOLLOWING DTC(S) STORED IN MEMORY.•P0300 - RANDOM MISFIRE DETECTED•P0301 - CYLINDER NO.1 MISFIRE DETECTED•P0302 - CYLINDER NO.2 MISFIRE DETECTED •P0303 - CYLINDER NO.3 MISFIRE DETECTED •P0304 - CYLINDER NO.4 MISFIRE DETECTED THIS MAY BE CAUSED BY FROZEN WATER ACCUMULATED IN THE MAIN SILENCER, RESTRICTING EXHAUST FLOW. |
| 01-009-16-3172B | 2017-02-17. Service bulletin. ENGINE. SOME VEHICLES MAY EXPERIENCE A ROUGH IDLE WITH THE CHECK ENGINE LIGHT ON AND DTC P0015 / P0524 STORED IN MEMORY.•P0015:00 - EXHAUST CMP TIMING OVER-RETARDED•P0524:00 - ENGINE OIL PRESSURE TOO LOWTHIS IS CAUSED BY A DROP IN ENGINE OIL PRESSURE DUE TO A PIECE OF FOREIGN OBJECT STUCK ON THE OIL PUMP PRESSURE RELIEF VALVE OR OIL CONTROL VALVE (OCV). THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A CHECK ENGINE LIGHT ON, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.