Checks, in order
- Dashboard behaviorNote whether the cluster lights up, whether the READY indicator appears, and whether any hybrid warning or message shows. A dark dash with no response points at the 12 V system.easy $ · under about $50
- Test the 12 V batteryMeasure the resting voltage and have it load tested. Around 12.4 V or higher is healthy; low voltage after sitting suggests a drain or a worn battery.easy $ · under about $50
- Jump or charge it correctlyFollow the owner's manual for the jump-start points. A low 12 V battery can be jumped or charged, but the high-voltage battery is never part of this.easy $ · under about $50
- Check the fob and brake pedalPress the brake firmly when pressing the power button, and try the fob backup position noted in the manual if the fob battery is weak.easy $ · under about $50
- Dealer diagnosisIf it will not go READY with a good 12 V battery, or shows a hybrid system warning, have it towed to a dealer. This is warranty territory.hard $$$ · shop-level job, $500+
Applies to: 6th generation 4Runner, 2025 and newer, with the 2.4L turbocharged i-FORCE and the i-FORCE MAX hybrid, both with the 8-speed automatic. This is a new platform with little long-term history, so most entries are general symptoms; when the truck is under warranty, the dealer is the right first stop.
Tools and parts for these checks
Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.
| ITEM | USED FOR | BUY |
|---|---|---|
| Digital multimeter | Voltage, ground and continuity checks | Shop on Amazon |
| Battery load tester | Testing the battery under load before replacing parts | Shop on Amazon |
| Battery terminal cleaning brush | Cleaning corroded terminals and cable ends | Shop on Amazon |
| Bluetooth OBD2 scanner with live data | Reading and clearing codes and watching live sensor data | Shop on Amazon |
More 6th Gen 4Runner problems
- Something is wrong on a new 4Runner: warranty, recalls and where to start (Body & Electrical)
- Digital gauge cluster blank, missing speedometer, or warning lights not showing at startup (Body & Electrical)
- Clunk or abrupt shift, especially 1st to 2nd, or hesitation pulling away (Transmission)
- Front brakes squealing or chirping on a new truck (Brakes)
- Won't start or crank on the 2.4L turbo (non-hybrid) (Starting & Charging)
- Check engine light on, with or without a code (Engine)
All 14 6th Gen 4Runner symptoms in the interactive troubleshooter →
General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.