C2101 on 2022-2024 Jeep Grand Wagoneer — TPMS Receiver / Transmitter Reception Fault (Manufacturer-Specific)
1 vehicles · 1 makes
How to diagnose and fix C2101: most-reported vehicles
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Jeep Grand Wagoneer · 2022–2024
The Grand Wagoneer's electric power steering (EPS) rack-and-pinion assembly experiences premature failure, manifesting as sudden loss of power steering assist, wandering on the highway, or excessive steering effort. On 2024-2025 models, Stellantis TSB 08-185-25 traces partial or full loss of assist with an illuminated EPS indicator (DTCs C1593-00 / C0051-64) to an over-greased EPS wire harness connector; once the code sets, the reduced assist remains for the rest of the key cycle. Given the Grand Wagoneer's 6,000+ lb curb weight, loss of power steering assist makes the vehicle extremely difficult to control, especially at low speeds.
Common Symptoms
- Steering assist warning light illuminated
- Sudden heavy steering effort
- Steering wanders or drifts at highway speed
- Steering feels loose or disconnected in center position
- Clunking from steering rack area during turns
How to Fix
Per TSB 08-185-25, the dealer first inspects and cleans the EPS wire harness connector; the electric rack and pinion is replaced as a complete assembly only if needed. The dealer repair is covered under the 3-year/36,000-mile basic warranty. After replacement, a steering angle sensor calibration and alignment must be performed. If out of warranty, remanufactured EPS racks from certified rebuilders are available at 40-50% savings over new OEM.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mopar 68565874AD EPS rack-and-pinion gear for 6.4LOEMMopar 68565874AD
Complete steering-gear replacement after software, voltage, circuit and mechanical diagnosis confirms internal failure Fitment/availability: 2022-2023 Grand Wagoneer 6.4L short wheelbase. Not for the 3.0L Hurricane or Grand Wagoneer L; c…
- Genuine Mopar 68565868AH EPS rack-and-pinion gear for 3.0L short wheelbaseOEMMopar 68565868AH
Complete steering-gear replacement after software, voltage, circuit and mechanical diagnosis confirms internal failure Fitment/availability: 3.0L short-wheelbase Grand Wagoneer catalog branch, current replacement for 68565868AF. Not for …
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Owner tips & cautions
- WarningIf your Grand Wagoneer steering warning light comes on, do NOT continue driving. This 6,000+ lb vehicle is nearly impossible to steer without power assist at parking lot speeds. Pull over safely and call for a tow to the dealer. This is a safety-critical failure.
Sources for this issue (1)
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C2101 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does C2101 mean?
C2101 stands for "TPMS Receiver / Transmitter Reception Fault (Manufacturer-Specific)." C2101 is a manufacturer-specific chassis code (common on Toyota/Lexus) within the Tire Pressure Monitoring System family. It generally indicates the TPMS receiver/ECU did not properly receive an expected signal from one or more wheel-mounted tire pressure transmitters, or that a receiver-side reception fault occurred. The TPMS warning light typically comes on and live tire pressures may not display. It is a comfort/safety-advisory code rather than a drivability fault, but tire pressures should still be checked manually.
What are the most common causes of C2101?
The most common causes of C2101 are: Weak or dead TPMS sensor (transmitter) battery, TPMS sensor IDs not registered to the receiver, Faulty TPMS receiver/antenna or wiring, Radio-frequency interference blocking the signal, Damaged or missing tire pressure sensor, Failed TPMS control module. The specific cause varies by vehicle.
How much does it cost to fix C2101?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by C2101?
Au7o has documented C2101 across 1 vehicle models from 1 manufacturers: Jeep.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.