C2101 on 2022-2024 Jeep Grand Wagoneer — TPMS Receiver / Transmitter Reception Fault (Manufacturer-Specific)
1 vehicles · 1 makes
Most Reported On
C2101 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2022-2024 Jeep Grand Wagoneer.
Common Causes
Diagnostic Tools
To diagnose C2101, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
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.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.