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2023 R1T Air Suspension Acting Up: Uneven Ride & Compressor Noise

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Chris P. · rep 0 · May 22, 7:13 AM · 1 replies · solved · Question

Vehicle: 2023 Rivian R1T

My 2023 Rivian R1T has been acting strange lately. I've noticed the ride height seems uneven sometimes, especially after parking overnight. It looks like one corner might be lower than the others, giving it a bit of a lean.

Also, I'm hearing a new, louder humming or buzzing sound from what I think is the air suspension compressor, particularly when I first start the truck or when it's trying to adjust the height. It's not constant, but definitely more noticeable than before.

I'm worried about potential damage or if this is a sign of a bigger problem. Has anyone else experienced this with their R1T? What should I be looking for or what could be causing this?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 7:13 AM

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ClearTheCode admin answer:

Uneven ride height and unusual compressor noise in your Rivian R1T's air suspension system are common indicators of a developing issue. Here's a breakdown of potential causes and what to do:

  1. Air Leaks: The most frequent cause of uneven ride height is a leak in the air suspension system. This could be in the air springs (often called airbags or air struts), air lines, or the valve block. Even a small leak can cause one corner to sag overnight as air slowly escapes. The compressor might then run more frequently and loudly to compensate for the lost pressure.
  2. Failing Air Compressor: A louder-than-normal hum or buzzing from the compressor could indicate it's working harder than it should, possibly due to a leak elsewhere, or the compressor itself is starting to fail. Internal wear, a failing motor, or a clogged intake can all contribute to increased noise and reduced efficiency.
  3. Ride Height Sensor Malfunction: Each wheel has a ride height sensor that communicates the vehicle's height to the air suspension control module. If a sensor is faulty, damaged, or miscalibrated, it can send incorrect readings, leading the system to incorrectly adjust the height, resulting in an uneven stance. This might not always trigger a dashboard warning light immediately.
  4. Control Module Issues: Less common, but a software glitch or hardware fault within the air suspension control module (ASCM) could lead to incorrect commands being sent to the system, causing erratic behavior.

Diagnostic Trouble Codes (DTCs): While your dash might not show a warning, a professional diagnostic scan tool can often reveal specific codes related to air suspension faults. Look for codes in the C-series (Chassis codes) such as:

  • C1A00-series: General suspension system faults.
  • C1A20-series: Pressure sensor issues.
  • C1A30-series: Compressor faults.
  • C1A40-series: Ride height sensor faults.

When to See a Shop: It's highly recommended to have your Rivian R1T inspected by a certified Rivian service center or a specialist shop as soon as possible. Ignoring these symptoms can lead to:

  • Premature wear: The compressor working overtime will shorten its lifespan.
  • Further damage: Continued driving with an uneven suspension can put undue stress on other chassis components.
  • Safety concerns: An improperly functioning suspension can compromise handling, braking, and overall vehicle stability, especially at higher speeds or during emergency maneuvers. They can perform a thorough leak test, check sensor readings, and accurately diagnose the compressor's health.
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