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Service bulletins for the 2018 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.

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

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Bulletins, newest first
09-020-19-35242019-05-03. Service bulletin. SEATS. Some customer may complain of warping on the driver seat cushion trim, which may cause poor appearance complaints. This is caused by a gap between the leather seat surface and the seat cushion pad due to insufficient tension on the seat trim. To eliminate this concern, a non-woven fabric has been attached to the backside of the seat trim to increase tension.
04-003-19-35892019-05-03. Service bulletin. WHEELS; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Some vehicles may experience the TCS/DSC indicator light and the TPMS warning light both ON with DTC C0051:62 stored in memory. DTC C0051:62 - The difference between the initial learned value of the steering angle (as calculated by each sensor) and the steering angle (as calculated by the steering angle sensor) while driving in a straight line, has exceeded its allowable tolerance (or threshold). NOTE: For vehicles equipped with the Smart City Brake System (SCBS), the master warning light also comes ON with the message "SCBS Inspection Required" in the display. The symptoms may occur when the following conditions are met: After starting the engine, the vehicle is driven backwards while the steering wheel is turned to the left or to the right or going forward over a bump while turning the steering wheel. The vehicle is then driven forward and begins accelerating while the steering wheel is still turned. To eliminate this concern, the DSC HU/CM software has been changed.
SA-016-192019-04-25. Service bulletin. WHEELS; SUSPENSION:FRONT:WHEEL BEARING. There have been warranty claims submitted for noise in differentials, transfer units and transmissions where the source of the noise was a wheel bearing. This misdiagnosis can lead to multiple repair attempts, warranty debits, and additional inconvenience and/or cost to the customer. To reduce the chance of this occurring, please follow the steps outlined in the repair procedure.
SA-015-192019-04-25. Service bulletin. ENGINE. If you receive a customer concern with the check engine light coming on and DTC P3400 (cylinder deactivation system malfunction) stored, perform the inspection in the Repair Procedure.
SA-013-192019-04-25. Service bulletin. EQUIPMENT. MAZDA IDS INOPERATIVE WITH VCM-II LICENSE EXPIRATION MESSAGE - If you encounter an IDS inoperative problem with VCM-II license expiration message, follow the instructions below: 1. CLICK HERE to download the resetting tool to your PC desktop. 2. Reboot your PC, DO NOT start any application after restarting. 3. Run the resetting tool by double clicking the "Reset.bat" file (on your desktop from step 1). 4. Press any key after reading the notifications about the resetting tool.
SA-012-192019-04-25. Service bulletin. ENGINE. On some vehicles, a tapping or knocking noise may be heard from the top end after the engine cools down (vehicle is parked overnight) or it has been idling for an extended time. The tapping noise will decreases as the vehicle is being driven or if the RPM is held above 2500-3000 RPM.
SA-002-19a2019-04-25. Service bulletin. EQUIPMENT. On May 1, 2018, Japan produced vehicles starting using 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing the accessory locking lug nuts, make sure to use the appropriate part number for the vehicle you are working on.
SA-001-19b2019-04-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. APPLE CARPLAY™ / ANDROID AUTO™ FREQUENTLY ASKED QUESTIONS (FAQ)
RF-18-02R22019-04-25. Service bulletin. WHEELS; WHEELS:LUGS/NUTS/BOLTS/STUDS. On May 1, 2018, Japan produced vehicles starting using 17 mm hex lug nuts instead of 21 mm on the same size thread. When installing new lug nuts or the accessory Wheel Lock Set, make sure to use the appropriate part number for the vehicle you are working on.
01-011-19-35862019-04-25. Service bulletin. ENGINE. Some customers may experience a check engine light illuminating with DTC P2096:00 stored in PCM memory. DTC P2096:00 - Air fuel too lean. NOTE: This concern occurs only on vehicles with PCMs manufactured by Mitsubishi. Due to improper control logic of the PCM, a false error may be detected. To eliminate this concern, the PCM software has been modified.
SA-001-19a2019-03-29. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. APPLE CARPLAY™ / ANDROID AUTO™ FREQUENTLY ASKED QUESTIONS (FAQ). Many frequently asked question and the answers.
09-015-19-35782019-03-29. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Some customers may complain that the rear door seaming welt (1) comes off when stepping in and/or out of the vehicle. This is caused by the gripping force of the seaming welt being insufficient for frequent usage of the rear seat (vehicle used for ride sharing). No mass production change is planned.
15-002-19-3542a2019-03-29. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT ADAPTIVE/MOBILITY; LANE DEPARTURE; SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE. Some customers may experience a SBS/SCBS, LAS/LDWS and/or HBC warning light on. A system error message may also be found in the center display. DTC U3000:04-0A (Forward sensing camera (FSC) internal malfunction).Master Warning Light, Smart Brake Support/Smart City Brake Support (SBS/SCBS) Indicator Light, Lane-keep Assist System (LAS) Lane Departure Warning System (LDWS) Warning Light, High Beam Control (HBC) system Warning Light (amber). DTC U3000:04-0A (Forward sensing camera (FSC) internal malfunction) is stored in the FSC module and cannot be erased. This concern may be caused by a hardware failure of an internal device of the FSC, which results in a malfunction detection. To eliminate this concern, the production process of the FSC has been modified.
05-002-19-35762019-03-29. Service bulletin. POWER TRAIN; POWER TRAIN:AXLE ASSEMBLY. 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.This is caused by a damaged bearing in the transaxle due to improper configuration of the transaxle case. A modification has now been implemented on automatic transaxles with the following serial numbers: •7TN0820364 and higher (CX-3) / 8TN1090104 and higher (except CX-3) •8TR1008883 and higher •8TD1003276 and higher •8T50331192 and higher (CX-3) / 8T50329705 and higher (except CX-3).
03-001-19-3505b2019-03-29. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. Some vehicles may exhibit a squeak noise from the right front driveshaft at the automatic transaxle when driving. This concern is likely to occur when driving at speeds between 37-50 mph (60-80 km/h) with the ATF at normal operating temperature. The noise is caused by stick/slip between the oil seal at the transaxle and the dust cover of the driveshaft. To correct this issue, the thickness of the dust cover has been increased.
01-010-19-35822019-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Some vehicles may experience a lack of power and the check engine light on with DTC P61B:00 stored in the PCM memory when driving in high temperatures at high elevations. DTC P061B:00 - [PCM] Internal control module torque calculation performance problem.This concern may be caused by improper PCM control logic. The engine torque calculation error may increase in high temperatures at high elevations. To eliminate this concern, the PCM software has been modified.
00-003-19-35832019-03-21. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; EQUIPMENT. In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS shortly and Workshop Manual procedures will be revised gradually.
09-014-19-35812019-03-20. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING. Some customers may complain of foggy rear combination lights (as shown below) after a car wash or heavy rain. This concern may be caused by water entering into the rear combination lights through the ventilation tubes. To eliminate this from occurring, the ventilation tubes have been changed to a ventilation cap design.
09-003-19-3555a2019-03-20. Service bulletin. EXTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:TAIL LIGHTS. Some customers may complain of condensation/fog inside the front (headlamp/headlight) or rear (taillamp/taillight) combination lights. The recent new models have been fitted with a clear lens which can cause the symptom to be more noticeable, however, it does not affect the performance of the light. This condensation/fog is a natural phenomenon that occurs when there is a fairly large temperature difference between the inside and the outside of the light housing. It is normal for very small water drops to appear in certain locations on the light units where the air is stagnant (condensation), making the lens look whitish (fog). This happens mostly in the corners and narrow spaces, and will typically clear during warmer ambient temperatures, or when the lights have been on for some time.
15-001-19-3517a2019-03-19. Service bulletin. EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. Some vehicles may experience a SBS/SCBS, LAS/LDWS and/or ADAPTIVE LED headlight /HBC warning light on with the DTC U0155:00 stored in memory. The warning lights may stay on while these functions are deactivated. This concern may be caused by faulty Instrument Cluster software. To eliminate this concern, the software has been modified. NOTE: The Mazda Diagnostic Reprogramming Tool (MDRT) loaner program begins effective Jan. 30, 2019.
SA-011-192019-03-11. Service bulletin. POWER TRAIN. Some vehicles may display some (or all) of the following symptoms: Check engine light on wit DTC P061B, Surging on acceleration, Transmission will not shift past 4th gear, Various U codes (U0401 ABS, U0401, U0415 FSC, U0301, U0316 SBS/MRCC, U0442 TCM) may be set.
SA-009-192019-03-11. Service bulletin. ENGINE. If you encounter a 2018 CX-5 (cylinder deactivation) with DTC P2096, contact Hotline for instructions.
SA-006-192019-03-11. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain about a MAZDA CONNECT system reboot or blank screen. Use the flowchart below to repair the vehicle.
SA-005-192019-03-11. Service bulletin. ENGINE. A tapping/rattling noise may be noticed from the valve train area. This condition usually occurs after the engine has been turned off at normal operating temperature and then not warmed up to full operating temperature during the next series of cold starts. This operating condition can occur, for example, on new vehicles which have been delivered to Mazda dealers (due to loading and unloading from transport trucks or customers moving their vehicles in and out of their garages to wash the vehicle, etc.)
15-002-19-35422019-03-11. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience a SBS/SCBS, LAS/LDWS and/or HBC warning light on. A system error message may also be found in the center display. DTC U3000:04-0A (Forward sensing camera (FSC) internal malfunction). DTC U3000:04-0A (Forward sensing camera (FSC) internal malfunction) is stored in the FSC module and cannot be erased. This concern may be caused by an internal FSC failure. To eliminate this concern, the production process of the FSC has been modified.

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