How long do RAM TPMS sensors last?
RAM TPMS sensors typically last about 5 to 7 years, or roughly 60,000 to 100,000 miles, before the battery weakens and readings become unreliable.
In RAM trucks and other RAM-branded vehicles, these sensors are mounted in each tire and powered by a sealed, non-replaceable battery. Their lifespan depends on climate, driving conditions, tire maintenance, and whether tires are replaced. This article explains typical lifespans, signs of failure, and how to replace or maintain them.
Typical Lifespan and What Influences It
Several factors determine how long RAM TPMS sensors stay reliable. The list below highlights the most important elements.
- Typical lifespan: 5 to 10 years; most owners see about 5–7 years in normal use.
- Mileage impact: around 60,000–100,000 miles can bring the end of life for many units.
- Battery type: sensors use a sealed, non-replaceable lithium battery; when the battery fails, the whole sensor is typically replaced.
- Environmental stress: extreme heat or cold, moisture, road salt, and rough roads can shorten life.
- Tire service interactions: frequent tire changes without sensor handling can affect reliability; some shops replace sensors during tire changes to avoid failures.
In practice, RAM owners often replace TPMS sensors as part of tire replacement or when a warning light or sensor fault appears.
Signs of a Failing TPMS Sensor
Look for common indicators that a TPMS sensor is nearing the end of its life or has failed.
- TPMS warning light stays on, or comes on intermittently.
- Inaccurate, inconsistent, or no tire pressure readings.
- Frequent “sensor fault” messages on the vehicle’s display.
- After tire service, the system requires a relearn or sensor identification not recognized.
- Physical damage to the sensor or valve stem during servicing.
If you observe these signs, have the TPMS system checked; sensor replacement is a normal part of tire service for many vehicles, including RAM models.
Maintenance and Replacement Options
The following options help you manage TPMS longevity and plan replacements.
- Most TPMS sensors are not serviceable; you generally replace the entire sensor instead of replacing the battery alone.
- When tires are replaced, consider replacing all sensors to ensure uniform performance and reduce the chance of failure from a weak battery.
- Relearn procedure: after sensor replacement, your vehicle may require a TPMS relearn or initialization, which some shops perform automatically.
- Cost considerations: sensor replacement for each wheel commonly ranges from tens to around a hundred dollars per wheel, plus labor and tire service; OEM sensors can be pricier than aftermarket options.
Discuss with your RAM dealer or tire shop to determine compatibility and exact pricing for your model and trim.
Warranty and How to Maximize Sensor Life
Maximize the life of TPMS sensors by understanding warranty terms and practice care.
- Warranty: many OEM TPMS sensors come with a 5-year or 60k–100k mile warranty; verify your vehicle’s documentation or with the dealer.
- Climate and maintenance: hot climates can shorten life; keep tires correctly inflated and avoid harsh impacts that can damage the sensor.
- Tire changes: replacing tires with sensor replacement can prevent mismatches and extend overall system reliability.
- Software updates: ensure the vehicle’s TPMS software is current to avoid misreadings or relearn issues.
Following OEM recommendations and staying proactive with tire service can help maximize TPMS sensor life.
Summary
RAM TPMS sensors typically provide about 5–7 years of service, or roughly 60,000–100,000 miles, under normal conditions. Battery life is a major constraint, and most units are replaced as a complete sensor when tires are changed or if a fault occurs. Climate, driving style, and service practices influence the actual lifespan.
Overall takeaway: plan for TPMS sensor replacement during major tire service and stay alert for warning lights or faulty readings to avoid road-side issues.
