C2101 on Jeep
TPMS Receiver / Transmitter Reception Fault (Manufacturer-Specific)
C2101 on Jeep vehicles indicates tpms receiver / transmitter reception fault (manufacturer-specific). Au7o has documented this code across 1 Jeep model — most commonly on Grand Wagoneer. 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.
Common Causes of C2101
- •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
C2101 on Jeep by Model
Jeep Grand Wagoneer(1 issue)
- Electric Power Steering Rack Failure and Assist Loss2022-2024
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. The EPS motor or internal torque sensor fails, triggering a steering warning light. 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. Stellantis issued recall 23V-635 for certain VINs related to steering rack fastener torque, but the EPS motor failure is a separate concern.
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View C2101 across all makes →Frequently Asked Questions
What does C2101 mean on Jeep?▼
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. On Jeep specifically, this code is documented across 1 model.
What causes C2101 on Jeep vehicles?▼
Common causes on Jeep: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C2101 on a Jeep?▼
Repair costs vary widely depending on the root cause and specific Jeep model.
Which Jeep models have C2101 documented?▼
Au7o has documented C2101 on 1 Jeep model: Grand Wagoneer.