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Service bulletins for the 2014 Mazda CX-5

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.

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

About P011A on the 2014 Mazda CX-5: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P011A are shown. Show all

Bulletins, newest first
SA2182021-01-28. Service bulletin. EQUIPMENT. If you encounter a 2013-2016 CX-5 with DTC P011A with overheating and/or no heat from the heater, compare the heater performance to another CX-5. If another CX-5 is not available, check the heater core flow and if restricted, drain/replace coolant and replace the heater core. NOTE: If the code is set by itself, without overheating and/or no heat from the heater, follow the Workshop Manual on MS3 online.
07-007-19-36382019-11-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE. Some customers may complain about poor heater performance even after the engine reaches normal operating temperature. This may be caused by a plugged heater core. For 2014-2016 Mazda6 and 2013-2016 (US spec) / 2017 (Mexico spec) CX-5, the CHECK ENGINE light may turn on with DTC P011A:00 (ECT sensor No.1/No.2 performance problem) stored at the same time. NOTE: Refer to TSB 01-015/15 if the customer is using a block heater at temperatures below freezing. To solve this concern, two mass production changes have been implemented. a) The concentration of the coolant has been increased so that the amount of the contained anti-rust additive is higher. b) The composition of the coolant has been changed (the ratio of the anti-rust additive has increased).
07-007-17-33842017-10-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Some customers may complain about poor heater performance even after the engine reaches normal operating temperature. This may be caused by a clogged heater unit. For Mazda6 and CX-5, the check engine light may illuminate with the DTC P011A:00 stored at the same time. P011A:00 ECT sensor No.1/No.2 performance problem. NOTE: Refer to TSB 01-015/15 if the customer is using a block heater at temperatures below freezing.
01-015-15-3064A2017-05-31. 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.
01-015-15-30642017-05-17. 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.
SA2182017-02-13. Service bulletin. ENGINE. IF YOU ENCOUNTER A 2013-2016 CX-5 WITH DTC P011A WITH OVERHEATING AND/OR NO HEAT FROM THE HEATER, COMPARE THE HEATER PERFORMANCE TO ANOTHER CX-5. IF ANOTHER CX-5 IS NOT AVAILABLE, CHECK THE HEATER CORE FLOW AND IF RESTRICTED, DRAIN/REPLACE COOLANT AND REPLACE THE HEATER CORE. NOTE: IF THE CODE IS SET BY ITSELF, WITHOUT OVERHEATING AND/OR NO HEAT FROM THE HEATER, FOLLOW THE WORKSHOP MANUAL ON MS3 ONLINE.
SA2182016-11-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE. IF YOU ENCOUNTER A 2013-2016 CX-5 WITH DTC P011A WITH OVERHEATING AND/OR NO HEAT FROM THE HEATER, COMPARE THE HEATER PERFORMANCE TO ANOTHER CX-5. IF ANOTHER CX-5 IS NOT AVAILABLE, CHECK THE HEATER CORE FLOW AND IF RESTRICTED, DRAIN/REPLACE COOLANT AND REPLACE THE HEATER CORE. NOTE: IF THE CODE IS SET BY ITSELF, WITHOUT OVERHEATING AND/OR NO HEAT FROM THE HEATER, FOLLOW THE WORKSHOP MANUAL ON MS3 ONLINE.

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