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Service bulletins for the 2012 Mazda Mazda3

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.

446 on file from NHTSA, as of 2026-10-19.

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05-002-15-30192017-05-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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). • 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. 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 ORRECT THE PROBLEM, SOME MASS PRODUCTION CHANGES HAVE BEEN IMPLEMENTED TO REDUCE CONTAMINATION AND IMPROVE THE DTC DIAGNOSTIC LOGIC.
05-002-15-3019A2017-05-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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). • 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. 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 ORRECT THE PROBLEM, SOME MASS PRODUCTION CHANGES HAVE BEEN IMPLEMENTED TO REDUCE CONTAMINATION AND IMPROVE THE DTC DIAGNOSTIC LOGIC.
05-002-15-3019B2017-05-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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). • 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. 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 ORRECT THE PROBLEM, SOME MASS PRODUCTION CHANGES HAVE BEEN IMPLEMENTED TO REDUCE CONTAMINATION AND IMPROVE THE DTC DIAGNOSTIC LOGIC.
01-015-15-30642017-05-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES USING AN AUXILIARY HEATER (BLOCK HEATER) MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0116:00 OR P011A WHEN STARTING IN COLD WEATHER BELOW 32 °F (0 °C). • P0116:00: ECT SENSOR NO.1 CIRCUIT RANGE/PERFORMANCE PROBLEM • P011A:00: ECT SENSOR NO.1/NO.2 PERFORMANCE PROBLEM. THIS IS CAUSED BY ERROR DETECTION LOGIC OF THE PCM. TO CORRECT THE PROBLEM, THE CONTROL LOGIC OF THE PCM HAS BEEN CHANGED.
01-005-15-3030A2017-05-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE DETECTED P0301:00: CYLINDER NO.1 MISFIRE DETECTED P0302:00: CYLINDER NO.2 MISFIRE DETECTED P0303:00: CYLINDER NO.3 MISFIRE DETECTED P0304:00: CYLINDER NO.4 MISFIRE DETECTED THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. IN COLD WEATHER BELOW 14 °F (-10 °C) WITH REPEATED SHORT TIME OPERATION, EXCESS FUEL INJECTED IN THE CYLINDERS MAY ACCUMULATE IN THE CRANK CASE AND RESULT IN INCREASED OIL LEVEL AND MISFIRE.
00-003-14-29702017-05-11. Service bulletin. EQUIPMENT. IN SUPPORT OF SKYACTIV MANUAL TRANSMISSION MODELS, MAZDA WILL SHIP TO ALL DEALERS ONE (1) NEW SPECIAL SER-VICE TOOL (SST). THE SST WILL BE SHIPPED AUTOMATICALLY BY MAZDA’S TOOL VENDOR SNAP-ON TOOLS, STARTING IN MID-OCTOBER 2014.THE FOLLOWING SST IS THE LATEST ADDITION TO THE MAZDA REQUIRED TOOL (MRT) LIST.
01-009-14-2909A2017-05-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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 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 OCV. THE TEMPORARY ENTRY OF THE FOREIGN OBJECT TRIGGERS A MIL ILLUMINATION, BUT ROUGH IDLE WILL NOT BE PRODUCED UNTIL A LATER TIME.
09-025-14-2925A2017-05-08. Service bulletin. EQUIPMENT. SOME VEHICLES MAY EXHIBIT A CRACKING NOISE ORIGINATED AT THE POSITIONING PINS NEAR THE TOP CORNERS OF THE WIND-SHIELD AND/OR REAR WINDOW WHEN DRIVING ON UNEVEN ROAD SURFACE. THIS HAPPENS WHEN THE AMBIENT TEMPERATURE IS APPROXIMATELY 14 °F (-10 °C) OR LOWER AND THE VEHICLE CABIN HAS NOT YET WARMED UP. THE NOISE IS CAUSED BY THE WINDSHIELD AND/OR REAR WINDOW LOCATING STOPPER CONTACTING THE PANEL.
09-039-14-29232017-05-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL. SOME VEHICLES MAY EXHIBIT BLUETOOTH® HANDS-FREE AND/OR TEXT MESSAGING RELATED CONCERNS. TO IMPROVE THE HANDLING OF BLUETOOTH® HANDS-FREE AND/OR TEXT MESSAGING CUSTOMER CONCERNS, MAZDA CRE-ATED A SPECIAL SERVICE AND PARTS EXCHANGE PROGRAM AS OF FEBRUARY 2010.
09-038-14-29572017-05-08. Service bulletin. EQUIPMENT. SOME CUSTOMERS MAY COMPLAIN ABOUT EITHER OF THE FOLLOWING CONCERNS:A.THE DASHBOARD UPPER PANEL IS STICKY. B.THE DASHBOARD UPPER PANEL JUST ABOVE THE INFORMATION DISPLAY (A) IS WARPING, GENERATING A GAP (B).
09-034-14-29562017-05-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. IN ACCORDANCE WITH FEDERAL REGULATIONS, FOLLOW THE PROCEDURE LISTED BELOW WHEN REPLACING A SPEEDOMETER.NOTE:•MAZDA VEHICLES ARE MANUFACTURED WITH TAMPER-PROOF SPEEDOMETERS.•WHEN A SPEEDOMETER IS REPLACED, THE NEW SPEEDOMETER WILL READ ZERO (0) MILES.•THIS PROCEDURE IS EXTREMELY IMPORTANT TO ACCURATELY REPRESENT ACTUAL VEHICLE MILEAGE.•PRIOR TO SPEEDOMETER REMOVAL, COMPLETE THE INFORMATION REQUIRED ON THE “SPEEDOMETER REPLACE-MENT LABEL”. •LABELS CAN ONLY BE ORDERED THROUGH MSTORE, NOT MDCS.
05-008-14-29202017-05-04. Service bulletin. EQUIPMENT. SOME VEHICLES MAY EXHIBIT ONE OF THE FOLLOWING CONCERNS:•HARD TO SHIFT INTO 3RD GEAR•SOMETIMES THE SHIFTER MAY JUMP OUT OF 3RD GEAR OVER A ROAD BUMP WHEN ACCELERATING AFTER DECELERATION AT 25-40 MPH (40-65 KM/H)THIS IS CAUSED BY THE FRICTION COEFFICIENT BETWEEN THE 3/4 CLUTCH HUB AND THE SLEEVE INCREASING. A SURFACE TREAT-MENT HAS NOW BEEN ADDED TO THE 3/4 CLUTCH HUB TO DECREASE THE FRICTION COEFFICIENT.
09-027-14-29352017-05-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. THIS SERVICE BULLETIN PROVIDES INFORMATION REGARDING THE PROPER USE OF THE DRIVER’S FLOOR MAT TO AVOID ANY POTENTIAL INTERFERENCE WITH THE FOOT PEDALS. THE FOLLOWING ARE POSSIBLE CAUSES OF FLOOR MAT INTERFERENCE, WHICH CAN BE AVOIDED WITH PROPER USAGE. • FLOOR MAT MOVES FORWARD DUE TO IMPROPER INSTALLATION. • INAPPROPRIATE FLOOR MAT (SUCH AS AFTERMARKET, NON-FACTORY-EQUIPPED, OR NON-GENUINE) IS USED. • FLOOR MAT IS STACKED ONE ON TOP OF ANOTHER.
00-002-14-29362017-05-04. Service bulletin. EQUIPMENT. MAZDA NORTH AMERICAN OPERATIONS RECEIVED MANY REQUESTS FROM OUR DEALERS ASKING US TO APPROVE ADDITIONAL ON-CAR BRAKE LATHES AS AN OPTION FOR MNAO AUTHORIZED EQUIPMENT. DUE TO YOUR FEEDBACK AND AFTER EVALUATING A FEW ON-CAR BRAKE LATHES, WE ARE PLEASED TO ANNOUNCE THAT WE HAVE ADDED THE PRO CUT ON-CAR BRAKE LATHE TO MNAO AUTHORIZED EQUIPMENT PROGRAM. THE ACCU-TURN IS STILL AN APPROVED BRAKE LATHE BUT IT IS NO LONGER AVAILABLE FOR PURCHASE FROM OUR VENDOR. IMPORTANT REMINDER – ROTORS MUST BE MACHINED USING A MAZDA APPROVED ON-CAR BRAKE LATHE OR WARRANTY CLAIMS ARE SUBJECT TO DENIAL OR DEBIT.
05-003-14-2898A2017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0780 (GEAR SHIFTING MALFUNCTION) AND/OR P1738 (AUTO-MATIC TRANSAXLE INTERNAL MALFUNCTION) WITH/WITHOUT U0401, OR OTHER DTCS STORED IN MEMORY.OTHER DTCS (WITH THE ABOVE DTCS) - P0746:00, P0751:00, P0752:00, P0756:00, P0757:00, P0761:00, P0762:00, P0766:00, P0767:00, P0771:00, P0772:00, P079A:00, P0842:00, P0843:00, P0847:00, P0848:00, P0872:00, P0873:00, P0877:00, P0878:00, P1784:00TO CORRECT THE PROBLEM, A NEW PROGRAMMED VALVE BODY HAS BEEN ESTABLISHED.
01-009-14-29092017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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.
01-010-14-28962017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0191:00 (FUEL PRESSURE SENSOR CIRCUIT RANGE/PERFOR-MANCE PROBLEM) STORED IN MEMORY. THIS IS CAUSED BY THE HIGH PRESSURE FUEL PUMP NOT GENERATING THE TARGET FUEL PRESSURE (DUE TO A MANUFACTURING ERROR OF THE INNER PARTS). TO CORRECT THE PROBLEM, PRODUCTION CONTROL HAS BEEN IMPROVED.
01-010-14-2896A2017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE MIL ON WITH DTC P0191:00 (FUEL PRESSURE SENSOR CIRCUIT RANGE/PERFOR-MANCE PROBLEM) STORED IN MEMORY. THIS IS CAUSED BY THE HIGH PRESSURE FUEL PUMP NOT GENERATING THE TARGET FUEL PRESSURE (DUE TO A MANUFACTURING ERROR OF THE INNER PARTS). TO CORRECT THE PROBLEM, PRODUCTION CONTROL HAS BEEN IMPROVED.
05-005-14-2902B2017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH DTC P0842, P0847, P0872 AND/OR P0877 STORED IN THE TCM MEMORY.•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 ONTHE DTC P0780 AND/OR P1738 MAY ALSO BE STORED TOGETHER.•P0780:00 - GEAR SHIFTING MALFUNCTION•P1738:00 - AUTOMATIC TRANSAXLE INTERNAL MALFUNCTIONTHIS 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.
05-005-14-2902C2017-05-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH DTC P0842, P0847, P0872 AND/OR P0877 STORED IN THE TCM MEMORY.•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 ONTHE DTC P0780 AND/OR P1738 MAY ALSO BE STORED TOGETHER.•P0780:00 - GEAR SHIFTING MALFUNCTION•P1738:00 - AUTOMATIC TRANSAXLE INTERNAL MALFUNCTIONTHIS 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.
01-010-14-2896B2017-05-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0191:00 OR DTC P0192:00 STORED IN MEMORY. DTC P0191:00: FUEL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (EXCEPT 2014 MAZDA3) DTC P0192:00: FUEL PRESSURE SENSOR CIRCUIT LOW INPUT (2014 MAZDA3) THIS IS CAUSED BY THE HIGH PRESSURE FUEL PUMP NOT GENERATING THE TARGET FUEL PRESSURE (DUE TO A MANUFACTURING ERROR OF THE INNER PARTS). TO CORRECT THE PROBLEM, PRODUCTION CONTROL HAS BEEN IMPROVED.
05-005-14-2902D2017-05-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT AND AUTOMATIC TRANSAXLE WARNING LIGHT ON WITH DTC P0842, P0847, P0872 AND/OR P0877 STORED IN THE TCM MEMORY.•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 ONTHE DTC P0780 AND/OR P1738 MAY ALSO BE STORED TOGETHER.•P0780:00 - GEAR SHIFTING MALFUNCTION•P1738:00 - AUTOMATIC TRANSAXLE INTERNAL MALFUNCTION. NOTE: THIS SERVICE INFORMATION IS ALSO APPLICABLE IF DTC P0780:00 IS STOREED INDEPENDENTLY. 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.
05-004-14-2867B2017-05-03. Service bulletin. EQUIPMENT. SOME CUSTOMERS MAY COMPLAIN OF A WHINING NOISE FROM THE AUTOMATIC TRANSAXLE WHEN DRIVING AT 10 MPH AND ABOVE. THE NOISE:•DEPENDS ON THE VEHICLE’S SPEED ONLY (THE MORE SPEED, THE MORE NOISE)•OCCURS WITH ALL TYPES OF DRIVING (ACCELERATION, DECELERATION, STEADY SPEED)•DOES NOT DEPEND ON RPM, GEAR, OR ATF TEMPERATURE
03-001-14-29192017-05-03. Service bulletin. EQUIPMENT. SOME NEW VEHICLES MAY EXHIBIT OIL SEEPAGE UNDERNEATH THE BEARING BRACKET (A) ON THE RIGHT SIDE OF THE JOINT SHAFT. THIS IS CAUSED BY THE OIL CONTENT SEPARATING FROM THE GREASE APPLIED TO THE BEARING AND SPLINE SEEPING FROM THE SEAL AND BRACKET.THERE IS NO FUNCTIONAL PROBLEM WITH THIS ISSUE SINCE THE AMOUNT OF OIL SEEPAGE IS VERY SMALL COMPARED TO THE AMOUNT OF GREASE. NOTE THAT THE OIL SEEPAGE WILL STOP WHILE THE VEHICLE IS IN USE.IF YOU ENCOUNTER A CUSTOMER COMPLAINT ABOUT THIS CONCERN, WIPE OFF THE OIL WITH A RAG. DO NOT REPLACE THE JOINT SHAFT.
09-023-14-29242017-05-03. Service bulletin. EQUIPMENT. SOME CUSTOMERS MAY COMPLAIN THAT THE AMBIENT TEMPERATURE DISPLAY IS NOT ACCURATE, OR IT TAKES TOO LONG FOR THE DISPLAY TO SHOW ACTUAL TEMPERATURE.WHEN YOU ENCOUNTER A CUSTOMER WITH THIS CONCERN, FIRST VERIFY THE CONDITION WHEN THE CUSTOMER NOTICED THIS SYMPTOM. IF THE CONDITION IS SIMILAR TO THE FOLLOWING “CONTROL LOGIC OF AMBIENT TEMPERATURE” OR “DIF-FERENCE BETWEEN THE TEMPERATURE DISPLAY AND OTHERS”, ADVISE THE CUSTOMER THAT THIS IS A NOR-MAL CHARACTERISTIC OF THE VEHICLE AND NOT A MALFUNCTION.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.