Service bulletins for the 2018 Hyundai Tucson
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.
169 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Electrical system are shown. Show all
| Campaign 953 Dea | 2019-11-18. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE; ENGINE; EQUIPMENT. Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure. |
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| Campaign T3G Dea | 2019-11-18. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Hyundai has launched a Service Campaign for applicable vehicles with 2.0L Turbo and 2.4L GDI engines that may experience the Check Engine warning lamp illuminated with DTC P132600. |
| 19-AT-016H | 2019-09-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. If you are servicing an applicable vehicle with a ?Check Engine? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness. |
| 19-FL-004H | 2019-08-19. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides information related to the Engine Control Module (ECM) software logic update for the DTC P0128 ? ?Coolant thermostat - coolant temp below thermostat regulating temperature?. |
| 19-FL-003H | 2019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides the procedure to write the Vehicle Identification Number (VIN) during the replacement of the Engine Control Module (ECM) or Powertrain Control Module (PCM). Once the VIN has been programmed to the ECM/PCM, it cannot be removed or overwritten. |
| Campaign 953 ECM | 2019-04-22. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Hyundai has launched a Product Improvement Campaign to perform a knock sensor software update on applicable vehicles. |
| 953 Dealer Best | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Hyundai has developed a new engine monitoring technology called a Knock Sensor Detection System (KSDS). The technology uses software innovations and leverages existing engine sensors to continuously monitor for symptoms that may precede an engine failure. Watch this video to learn more. The KSDS software continuously monitors engine vibrations for unusual patterns that develop as an engine connecting rod bearing wears abnormally that could later cause engine seizure. If vibrations caused by bearing wear start to occur, the malfunction indicator lamp will blink continuously, an audible chime will sound and the vehicle will be placed in a temporary engine protection mode with reduced power and acceleration. At that time, Diagnostic Trouble Code (DTC) P132600 will be recorded in the ECM. In addition, Hyundai will extend the warranty to 10 years and 120,000 miles (up from 100,000 miles) for original and subsequent owners of the covered vehicles for engine repairs needed because of excessive connecting rod bearing damage. |
| T3R Dealer Best | 2019-03-18. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; ELECTRICAL SYSTEM. The D-Audio lite head home screen on certain 2018 Tucson (TL) and 2018-19 Ioniq Plug-in Hybrid (AE PHEV) vehicles may remain blank. A D-Audio Software Update provided through a USB stick has been made available to correct this issue. |
| 19-01-004H | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM. This bulletin describes the procedure to update the D-Audio lite head unit on certain Tucson (TL) and Ioniq Plug-in Hybrid (AE PHEV) to correct the home screen remaining blank. |
| DCS T3R | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM. Hyundai Motor America is conducting Service Campaign T3R to update the D-Audio lite head unit software on certain 2018 Model Year Tucson and 2018-19 Ioniq Plug-In Hybrid vehicles. Service Campaign T3R provides a service procedure to update the D-Audio lite software for home screen remaining blank. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.