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2018 Hyundai Sonata Technical Service Bulletins (TSBs)

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TSB Date Problem Area TSB Text
01/16/18 Transmission and Drivetrain NHTSA ID: 10127009
TSB ID: 5NP-X4D6V-01

Hyundai motor america is conducting a service campaign to update the ecm and tcm on certain 2018 year sonata 2.0l turbo vehicles. service campaign t2q provides a service procedure to update the ecm and tcm.
11/13/17 Transmission and Drivetrain NHTSA ID: 10123305
TSB ID: 5NP-Z6F3A-11

Before installing an automatic transmission, check the depth of the torque converter in the case to confirm the torque converter is fully installed in the transmission. if this is not done, the oil pump may be damaged.
10/11/17 Transmission and Drivetrain NHTSA ID: 10118670
TSB ID: 5NP-B6Z4E-10

The 2018 sonata (lfa) 2.0t is equipped with an 8-speed transmission. do not replace the transmission for any of the solenoid dtc listed below. instead, follow the service procedure on page 2 and replace the related part.
10/11/17 Transmission and Drivetrain NHTSA ID: 10118671
TSB ID: 5NP-B9K3N-10

Some sonata hybrid (lf hev) vehicles may experience a small oil leak from the electric oil pump (eop) seals. if so, follow the service procedure in this bulletin to inspect and repair the oil seals between the transmission and eop. no driv
04/16/18 Electrical and Air Conditioning NHTSA ID: 10133166
TSB ID: 5NP-K9N4J-04

Hyundai motor america is conducting a service campaign to update the display audio software on certain dealer stock 2018 sonata. service campaign t2w provides a procedure to update the display audio software.
04/16/18 Electrical and Air Conditioning NHTSA ID: 10133164
TSB ID: 5NP-J4P2E-04

This bulletin describes the procedure for updating the display audio (d-audio) system software for the 2018 model year sonata (lfa). this update prevents the lcd overlay/display overlapping condition (previous screen images/icons showing on
NHTSA's feed only includes summaries. For the full text of TSBs:

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03/12/18 Electrical and Air Conditioning NHTSA ID: 10129908
TSB ID: 5NP-A4C8N-03

This tsb provides information on the headlight pattern changes on certain 2018 my sonata (lfa), elantra (ada)(ad), elantra gt (pd), santa fe sport (an), and santa fe (nc).
02/12/18 Electrical and Air Conditioning NHTSA ID: 10128603
TSB ID: 5NP-T5B2D-02

This bulletin describes the procedure to determine if the vehicle?s head unit needs to be replaced as a result of the system frequently losing a bluetooth connection with apple iphone devices.
01/16/18 Electrical and Air Conditioning NHTSA ID: 10127004
TSB ID: 5NP-R6Y5M-01

This bulletin provides information related to the engine control module (ecm) and transmission control module (tcm) software updates for certain 2018my sonata, equipped with 2.0l turbo engine and 8 speed automatic transmission. these vehicl
11/13/17 Electrical and Air Conditioning NHTSA ID: 10123302
TSB ID: 5NP-T9L7Q-11

This bulletin provides information regarding the a/c evaporator drain hose length specification change on certain sonata (lfa) vehicles.
09/13/17 Electrical and Air Conditioning NHTSA ID: 10117373
TSB ID: 5NP-V3F8T-09

If you are servicing a vehicle with the dtc or symptoms listed below, refer to the service procedure to diagnose the condition. ? diagnostic trouble codes: ? p0705 - range switch sensor circuit ? p0706 - range switch range/performance
01/16/18 Other NHTSA ID: 10126994
TSB ID: 5NP-C3Z4G-01

Some sonata 2.4l (lfa) vehicles may have an a/c bracket bolt missing. prolonged use under this condition may result in bracket damage.
01/16/18 Other NHTSA ID: 10126999
TSB ID: 5NP-H7A5L-01

Hyundai motor america is conducting a service campaign to install a bolt on the a/c bracket on certain 2018 year sonata vehicles. service campaign t2o provides a service procedure to install the a/c bracket bolt.

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Hyundai Sonata TSBs (Technical Service Bulletins)

Some things are often misunderstood about recalls and technical service bulletins (TSBs). Plus a disclaimer.

  1. Recalls do not have to be issued only because something is prone to failure. NHTSA (a government agency) can only require a recall if a failure will affect safety, emissions, fuel economy, or compliance with some other regulation or law. Manufacturers can voluntarily recall cars for problems that do not affect these, though.
  2. Recalls often apply to only some cars of a specific model year, rather than all of them. You should receive a letter from the manufacturer if your car has been recalled. You can also check with the dealer, which will know which (if any) recalls pertain to your car.
  3. The primary purpose of TSBs is to inform dealers about known problems with a car and how to fix them. They are not the same as recalls. As with recalls, TSBs often only apply to some cars, not the entire model year.
  4. Dealers often will not provide a preventive repair just because a problem described in a TSB might happen to your car. They'll usually want to observe symptoms that the problem is already affecting your car.
  5. Even if there are symptoms, a manufacturer doesn't have to pick up the cost of a TSB repair if the car is out of warranty, though sometimes they do.

We provide the text of recalls and TSBs as provided by NHTSA. There can be errors in the text. If you sign up for notifications in My Garage, we will try to get these to do, but for various reasons (some beyond our control) cannot guarantee you will receive them. When in doubt about a recall or TSB, contact the dealer.