Why does my Rivian sag overnight?

Short answer: If your R1T or R1S drops noticeably overnight, especially at one corner, there's probably a slow air leak in the air suspension. Owners on Rivian Forums found leaking valve blocks, a rolled or pinched O-ring (a rubber sealing ring) at the air tank or a fitting, and leaking air blocks. Some owners were told a small drop is within spec, so measure it carefully before booking service.

Symptom: The front or one corner sits lower in the morning, the vehicle levels after you start driving, or a 'suspension' message.

What to check first

1. Measure the height at each wheel arch the evening before and the next morning. Write it down with photos.
2. Note which corner drops. That helps service find the leak.
3. Use the app or screen to log ride height if your software shows it.
4. If it drops a lot (an inch or more), book service. Owners say Rivian service replaced leaking parts under warranty.
5. Check your VIN for recalls on the suspension fasteners, especially if the vehicle had suspension work.

Likely causes

1. Leaking valve block or air block. On Rivian Forums, an owner's R1T dropped one inch an hour at the rear passenger side and the air block was leaking.
2. Rolled or pinched O-ring at a fitting or the air tank. Two owners found O-ring problems causing slow leaks.
3. Leaking damper or air spring. One R1S owner said the dampers were replaced and front parts swapped for updated ones.

What it usually costs

The owners in these threads had repairs done under warranty. No owner posted an out-of-warranty price.

Is it safe to keep driving?

A small overnight drop that levels after startup is usually OK to drive while you book service. If a corner drops badly, the tire rubs, or the vehicle won't level, don't drive it until it's checked. Verify with a mechanic.

DIY or shop?

Rivian service. Air suspension leaks need diagnosis and the work is under warranty.

Recalls, bulletins and complaints in plain words

• No recall covers air suspension leaks on these Rivians.
• Recall 22V744 (2022 R1T and R1S, separate issue): the fastener connecting the front upper control arm to the steering knuckle may not have been tightened properly. If your vehicle is part of this recall, Rivian fixes it for free.
• Recall 26V003 (2022–2025 R1S and R1T that had certain service, separate issue): a toe link (a rod that keeps the rear wheels pointed straight) may have been put back incorrectly during service. If your vehicle is part of this recall, Rivian fixes it for free.
• NHTSA complaints: 55 keyword-matched complaints for Rivian R1T and R1S 2022–2024 (of 217 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-18; keywords: suspension, air spring, sag, ride height, compressor, level).

What owners report

• In Front suspension drops overnight on Rivian Forums, an R1T owner's front dropped about 66 mm in 24 hours. Service first replaced the valve module, then found a rolled O-ring at the air tank. Another owner's rear passenger corner dropped about an inch an hour and the air block was replaced. Members suggested measuring and diagramming, and using tire-change mode for some checks.
• In Overnight front suspension sag & front suspension loud squeaks, a 2023 R1S owner's front sagged overnight. A pinched O-ring caused a slow leak and was fixed under warranty. Others had dampers replaced or front parts swapped for updated ones, while one 2022 R1T owner was told the drop was within spec.

My take

My advice as a former lot tech: on air suspension, numbers win arguments. Measure the same spot every night and morning for a week. When you show service real measurements, it's a lot harder for anyone to say it's normal.

Vehicle focus: 2022–2024 Rivian R1T and R1S with air suspension.

Safety / mechanic note

A badly sagging corner can make the tire rub and change handling. Verify with a mechanic.