Jeep Wrangler Heated Steering Wheel Not Working TSB S2423000045

Owners of 2021-2025 Jeep Wrangler and Gladiator vehicles may experience various issues with their heated steering wheel functionality. This manufacturer communication, TSB S2423000045, provides technicians with a comprehensive guide to diagnose and address these concerns, ensuring proper operation of the heated steering wheel system.

Symptoms

Owners might notice several issues with their heated steering wheel, indicating a potential problem. These include:

• The heated steering wheel doesn't turn on as expected.
• The heated steering wheel turns on or off unexpectedly.
• The heated steering wheel temperature is too hot, too cold, or inconsistent.
• The heated steering wheel doesn't get hot fast enough.
• The heated steering wheel has inconsistent heating areas, such as being hot at the top but cold at the bottom.
• The heated controls are not functioning as expected.
• The heated steering wheel controls are not where the owner expects them to be, do not function as expected, or are not present at all.
• The screen for the heated steering wheel controls isn't working, or the option is not available on the vehicle.

Diagnosis / Trigger Conditions

Before proceeding with repairs for a Jeep Wrangler heated steering wheel issue, technicians are advised to follow a detailed diagnostic process outlined in TSB S2423000045. This begins by confirming the customer's complaint matches the described symptoms.

If Diagnostic Trouble Codes (DTCs) are present, technicians should prioritize testing based on those codes first. Initial diagnostic steps involve turning on the heated steering wheel and observing its behavior for approximately 10 seconds. If the vehicle has both a hard button and a soft (touch screen) button for activation, technicians should test both methods.

Further diagnostic checks include setting the vehicle to run mode without the engine running and performing a vehicle scan report. This scan should identify any reported issues (DTCs) related to the HVAC_FCA, BCM, and SCCM modules. Technicians must also verify the auto comfort settings in the touchscreen, checking if the vehicle is set to "all starts", "remote start only", or "off". Additionally, all fuses and relays associated with the heated steering wheel circuit should be inspected for proper function.

Repair Procedure Summary

If the initial diagnostic steps do not identify the issue, TSB S2423000045 provides further detailed procedures. Technicians will need to remove the driver airbag to gain access to the steering wheel heat element connectors. They should check these connectors for any loose connections.

Once accessed, the heat element connector should be removed, and its resistance measured. This measurement should fall between a minimum of 1.31 Ω and a maximum of 1.60 Ω, with a nominal value of 1.45 Ω, when the steering wheel is at room temperature (approximately 23°C/73°F). The TSB includes diagrams for the HTD WHL RTN (C986) and HTD WHL FEED (C91) connections.

Next, the NTC (heated steering wheel temperature feedback signal) connector should be disconnected, and its resistance checked against a detailed reference table provided in the TSB. This table, shown below, lists resistance values across a range of temperatures. Diagrams for the HTD WHL SIG (C92) and SIG RTN (G907) are also provided. Technicians must also check for loose connections at the main 12-pin electrical connector and all other steering wheel connectors. Finally, connectors at the CSWM ECU should be inspected for looseness or damage, ensuring proper pin alignment and re-seating them until an audible click is heard.

Important Warnings

This communication, TSB S2423000045, serves as a record of past experiences and does not authorize warranty repairs. It does not provide conclusions about vehicle malfunctions. Technicians are responsible for determining the appropriate course of action.

Crucially, the steering wheel should only be replaced if one or both of the measured resistances (heat element or NTC) are outside the specified values. Technicians are required to document the temperature and resistance in the claim write-up and return the fully assembled steering wheel, including the wire harness and switches, for any warranty claim.

NTC Resistance Values

The following table provides the nominal, minimum, and maximum resistance values for the NTC (heated steering wheel temperature feedback signal) at various temperatures. These measurements should be taken when the steering wheel is at room temperature (23°C/73°F).

Temp. [°C]	R Nom [Ω]	R Min [Ω]	R Max [Ω]
-40	336500	306960	366664
-35	242589	222164	263184
-30	177000	162706	191294
-25	130370	120273	140468
-20	97070	89860	104280
-15	72929	67735	78153
-10	55330	51551	59144
-5	42315	39545	45155
0	32650	30601	34763
5	25388	23861	26954
10	19900	18754	21070
15	15708	14841	16591
20	12490	11831	13155
25	10000	9500	10500
30	8058	7631	8481
35	6531	6171	6890
40	5328	5021	5630
45	4369	4110	4626
50	3603	3384	3823
55	2986	2799	3174
60	2488	2328	2649
65	2083	1945	2221
70	1753	1633	1873
75	1481	1378	1585
80	1258	1168	1348
85	1072	994.1	1151
90	917.8	849.4	986.3
95	788.5	728.6	848.8
100	680	627.4	732.6
105	588.6	542.3	636.3
110	511.3	470.3	555
115	445.4	409.1	486.3
120	389.3	357.1	426.3

Owner Action

If your 2021-2025 Jeep Wrangler or Gladiator is experiencing issues with its heated steering wheel, such as it not turning on, inconsistent heating, or control malfunctions, it is recommended to contact your authorized Stellantis dealer. This document, TSB S2423000045, is a manufacturer communication and not a recall, meaning any repairs may or may not be covered under warranty, depending on your vehicle's specific warranty coverage, age, and mileage. The dealer will utilize the diagnostic procedures and resistance tables outlined in TSB S2423000045 to accurately identify and address the root cause of the Jeep Wrangler heated steering wheel problem.

Source: NHTSA TSB ID 11009540