What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
4Original wording in English
VOLVO
Reported code forms U101B
The purpose of this CBR is to assist in diagnosing Tire Pressure Monitoring System (TPMS) DTCs U101A /U101B as well as instructions to replace the TPMS Range Extends and Wireless Sensor Gateway if it is determined it is…
MACK
Reported code forms U101B
Tire Pressure Monitoring System U101A / U101B Fault Solution
JAGUAR
Reported code forms U101B-87
"SITUATION: THE TRANSMISSION MAY BE STUCK IN PARK (P) ON ENGINE START UP. CAUSE: THIS MAY BE CAUSED WHEN, UNDER CERTAIN CONDITIONS, AN ENGINE START OCCURS BEFORE THE TRANSMISSION CONTROL MODULE (TCM) AND TRANSMISSION…
JAGUAR
Reported code forms U101B-87
"SITUATION: THE TRANSMISSION MAY BE STUCK IN PARK (P) ON ENGINE START UP. CAUSE: THIS MAY BE CAUSED WHEN, UNDER CERTAIN CONDITIONS, AN ENGINE START OCCURS BEFORE THE TRANSMISSION CONTROL MODULE (TCM) AND TRANSMISSION…
Check vehicle applicability
13A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Jaguar | F-TYPE | 2014 |
| Mack | ANTHEM AN (4) | 2027 |
| Mack | ANTHEM AN (4) | 2026 |
| Mack | PIONEER PR (4) | 2027 |
| Mack | PIONEER PR (4) | 2026 |
| Mack | PIONEER PR (4) | 2025 |
| Volvo | VNL (4) | 2027 |
| Volvo | VNL (4) | 2026 |
| Volvo | VNL (4) | 2025 |
| Volvo | VNL (4) | 2024 |
| Volvo | VNR (4) | 2027 |
| Volvo | VNR (4) | 2026 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.