Lincoln Aviator: Maintenance / Power Steering Fluid Check

Brake Fluid Check

WARNING: Do not use any fluid other than the recommended brake fluid as this will reduce brake efficiency. Use of incorrect fluid could result in the loss of vehicle control, serious personal injury or death...

Changing the 12V Battery

WARNING: Batteries normally produce explosive gases which can cause personal injury. Therefore, do not allow flames, sparks or lighted substances to come near the battery...

Other information:

Lincoln Aviator 2020-2026 Service Manual: General Procedures - Anti-Theft Key Programming - Scan Tool

Programming NOTE: A passive key with a depleted battery(ies) only starts the vehicle when in the backup starting location. The RKE functionality remains inoperative until the key battery(ies) is replaced. NOTE: The diagnostic scan tool must have an active Internet connection...

Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Exhaust System

Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).   Diagnostic Trouble Code Chart Module   DTC Description Action   PCM P0544:00 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB   PCM P0545:00 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB   PCM P0546:00 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB   PCM P0547:00 Exhaust Gas Temperature Sensor Circuit (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB   PCM P0548:00 Exhaust Gas Temperature Sensor Circuit Low (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB   PCM P0549:00 Exhaust Gas Temperature Sensor Circuit High (Bank 2 Sensor 1): No Sub Type Information   GO to Pinpoint Test RB Global Customer Symptom Code (GCSC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...