2021 Honda Ridgeline Service and Repair Manual

This 2021 Honda Ridgeline factory service and repair manual is built around the 3.5L V6 (J35Y6) and this trim lineup specifically, so the torque values, wiring diagrams and diagnostic trees you pull up match what Honda actually published for your truck, not a generic Ridgeline blend.

Engines covered

• 3.5L V6 — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door crew cab pickup

Trims covered

• Black Edition
• EX-L
• RTL
• RTL-E
• Sport
• Touring

Known issues on the 2021 Ridgeline. Seven recalls are on federal record for this model year. The rear center seat belt's automatic locking retractor can deactivate improperly, leaving a child restraint system unsecured. The heating pads behind both side-view mirrors may not bond correctly, letting the mirror glass detach and reduce driver visibility. A tie rod fastener connecting the brake booster to the brake master cylinder may have been improperly assembled, which can let the master cylinder separate and cause a loss of brake function. The front passenger seat weight sensor can crack and short circuit, failing to suppress the air bag as intended, or in a later filing causing the air bags to deploy unintentionally during a crash. The rearview camera's tailgate wire harness may fatigue and break, cutting out the backup camera image. The rear subframe can corrode at the suspension mounting points, risking rear suspension component failure and a loss of vehicle handling. Owners have filed 100 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.

From a rear subframe inspection to chasing a dead backup camera or a routine service interval, it keeps you on the OEM procedure and the correct specification for your specific 2021 Ridgeline.