2023 RIVIAN R1S

Typical onset: 15,000-40,000 mi

Symptoms: Clunking or thudding from underneath during acceleration or deceleration, Vibration felt through floorboards, especially under hard throttle, Visible sagging or misalignment of drive unit when inspected on lift

Fix: Replace failed rubber or polyurethane mounts; often requires dropping subframe or partially lowering drive unit. 4-6 hours labor depending on which mount(s) failed and drivetrain configuration (quad-motor jobs take longer). OEM parts availability has been spotty.

Estimated cost: $1,200-2,800

Typical onset: 20,000-50,000 mi

Symptoms: Orange coolant pooling under vehicle (not the main battery coolant loop), Reduced power warnings on dash, vehicle enters limp mode, Inverter temperature fault codes, loss of regenerative braking, Sweet smell from HVAC vents if coolant vapor enters cabin intake

Fix: Inverter coolant system uses dedicated loop with quick-connects prone to seepage. Repair involves inverter R&R (6-8 hours), coolant system flush, and seal/connector replacement. Some cases require full inverter replacement under warranty. Independent shops need Rivian service account for parts and software resets.

Estimated cost: $3,500-7,500

Symptoms: Recall notices for seat belt anchor bolts, suspension fasteners, and curtain airbag fasteners, No symptoms until catastrophic failure in crash scenario, Some owners report slight rattles from rear seat area if bolts are loose

Fix: Multiple recalls involve critical fasteners (seat belts, suspension, airbags). Rivian service centers perform inspections and re-torque or replace fasteners per TSB. 1-2 hours per recall campaign. Must be done at Rivian service center or authorized facility with recall access.

Estimated cost: $0 (recall work)

Typical onset: 10,000-60,000 mi

Symptoms: Sudden loss of range (30-50 miles overnight without driving), Battery cell imbalance warnings, vehicle won't charge past 80%, Persistent battery thermal management faults, cooling fans run constantly, Complete no-start in rare cases with multiple module failures

Fix: Individual battery modules can fail due to thermal runaway protection triggering or cell degradation. Rivian typically replaces entire module clusters (8-12 hours labor) rather than individual cells. Battery pack removal required. Only Rivian service centers have tooling and software to safely perform high-voltage work.

Estimated cost: $4,000-12,000

Symptoms: Condensation or water droplets visible inside headlight or taillight housings, Intermittent headlight or backup light function, flickering, Corrosion on LED driver boards causing complete light failure, Recall issued for backup light seal failures

Fix: Seal failures allow water into expensive LED assemblies. Early fix was resealing; current protocol is housing replacement (2-3 hours per side). Backup light recall covers specific VINs. If corrosion has damaged circuit boards, full assembly replacement required.

Estimated cost: $800-2,200

Typical onset: 25,000-60,000 mi

Symptoms: Refrigerant smell in cabin, oily residue on windshield, AC blows warm, system won't hold charge, Moisture or frost on passenger-side footwell carpet, Rapid refrigerant loss requiring frequent recharges

Fix: Evaporator core tucked deep behind dash. Full dash removal required (12-16 hours labor). Use OEM evaporator; aftermarket units don't fit correctly. This is a brutal job on the R1S due to electronic integration and trim complexity. Flush and vacuum system, replace desiccant.

Estimated cost: $3,800-6,500

Typical onset: 40,000-80,000 mi

Symptoms: Whining or grinding noise from front or rear drive unit, worse under load, Metallic particles visible in drive unit fluid during service, Vibration at highway speeds, feels like driveline imbalance, Reduced acceleration or power delivery inconsistencies

Fix: Drive unit (essentially a transaxle with integral motor) fluid should be changed every 30k miles despite longer factory interval. Contamination from seal wear or bearing particles accelerates gear damage. Fluid change is 1.5 hours per unit; if damage has occurred, drive unit rebuild or replacement runs 10-14 hours labor.

Estimated cost: $350-600 (fluid service), $5,500-9,000 (rebuild)