What are the common symptoms of the Hyundai Elantra A/C vent issues?

Owners might notice a lack of airflow from the forward-facing center vents, the mode actuator failing to change airflow direction, or a popping/snap noise when switching between different HVAC modes.

Which Hyundai Elantra models are affected by TSB 26-HA-001H?

This TSB applies to 2023-2025 Hyundai Elantra (CN7/CN7A), Elantra N (CN7 N), and Elantra Hybrid (CN7 HEV) vehicles.

What parts are replaced to fix the A/C vent mode change issues?

The primary parts replaced are the Ventilator Lever (P/N: 97153-AA000QQH) and the Cam Mode Guide (P/N: 97212-AA000QQH). A new Steering Wheel Lock-Bolt (P/N: 56115-B1000) is also required during reassembly.

2023-2025 Hyundai Elantra A/C Vent Mode Issues TSB

Q: Is the repair for the Hyundai Elantra A/C vent issues covered under warranty?

Yes, this repair is covered under the 5-year/60,000-mile New Vehicle Limited Warranty (NVLW) for parts and labor, provided your vehicle is within the applicable warranty period.

Symptoms

Owners of 2023-2025 Hyundai Elantra, Elantra N, and Elantra Hybrid vehicles may experience specific issues with their heating, ventilation, and air conditioning (HVAC) system. These symptoms indicate a problem with the A/C vent mode change mechanism.

Common symptoms include:

Lack of airflow coming from the forward-facing center vents.
The mode actuator not changing airflow direction after various inputs.
A popping or snapping noise when switching between different HVAC modes.

If you notice any of these Hyundai Elantra A/C vent issues, it's important to have your vehicle inspected.

Diagnosis / Trigger Conditions

To diagnose the A/C vent mode change issues, a technician will perform a specific inspection procedure. This involves checking the functionality of the ventilator lever and cam mode guide.

The diagnostic steps are as follows:

Turn on the vehicle's A/C or heater system.
Set the airflow to floor mode only.
Change the mode actuator to the forward-facing vent mode.
Verify if airflow is coming from the center vents.

If no airflow is present from the forward-facing center vents, or if a popping/snap noise is heard when switching modes, the repair procedure outlined in TSB 26-HA-001H applies. If airflow is present but other concerns exist, this bulletin does not apply, and further diagnosis is required.

Repair Procedure Summary

Addressing the Hyundai Elantra A/C vent issues involves replacing the ventilator lever and cam mode guide. The repair process requires several steps to ensure proper function and safety.

Here is a summary of the repair procedure:

The negative battery terminal is disconnected to ensure safety during the repair.
The main crash pad assembly is carefully removed, following specific instructions from the shop manual.
Passenger's airbag (PAB) connectors are disconnected.
The mode actuator is located and removed, along with the cam mode guide.
The screw and washer from the old ventilator lever are removed and transferred to the new ventilator lever (part number 97153-AA000QQH).
The new ventilator lever is then installed onto the HVAC box.
A digital photo of the original ventilator lever arm and cam mode guide is taken for warranty documentation purposes.
The position of the floor door lever is inspected and adjusted if necessary.
The cam mode guide is replaced with the new part (part number 97212-AA000QQH), and the actuator is reinstalled.
The main crash pad is reinstalled, taking care to prevent pinching of wire harnesses and ensuring all connectors are properly secured.
When reinstalling the steering wheel, a new steering wheel lock bolt (part number 56115-B1000) must be used.
Finally, the proper operation of the heating and air conditioning vents is verified.

Required Tools or Parts

To perform the repair for the A/C vent mode change issues, specific parts and tools are required. These ensure the correct and safe replacement of the affected components.

Key parts and tools include:

Ventilator Lever: Part Number 97153-AA000QQH
Cam Mode Guide: Part Number 97212-AA000QQH
Steering Wheel Lock-Bolt: Part Number 56115-B1000
A-Pillar Clip: Part Number 85815-C1100
Trim Fastener: Part Number 82315-2P000
Trim Clip – MTG: Part Number 84747-3Y000
Plastic Panel/Trim Removal Tools: Standard shop equipment is needed to prevent damage to interior components.

Important Warnings

Hyundai has issued several important warnings related to this technical service bulletin:

"This field action requires justification in the form of a customer concern, and a confirmed case for the related symptom outlined in the TSB, prior to any repair work. If justification requirements are not met, any submitted claims are subject to debit."
"If vehicle has other condition, this bulletin does NOT apply."
"If there is airflow out of the center vents, but other concerns are present, this TSB does NOT apply. Follow normal diagnostic procedures."
"Claim is subject to debit if the part is not returned."
"When reinstalling the steering wheel, be sure to replace the steering wheel lock bolt (L) with a new one (P/N: 56115-B1000)."
"Before tightening the bolts, make sure the crash pad wire harnesses are NOT pinched."

Owner Action

If your 2023-2025 Hyundai Elantra, Elantra N, or Elantra Hybrid is experiencing any of the described Hyundai Elantra A/C vent issues, it is recommended to visit an authorized Hyundai dealer.

This repair is covered under the 5-year/60,000-mile New Vehicle Limited Warranty (NVLW) for parts and labor, provided your vehicle is still within the warranty period. The dealer will diagnose the specific issue and perform the necessary replacement of the ventilator lever and cam mode guide.

Source: NHTSA ID: 11028321