In government crash tests, the 2008 Lancer received five out of five stars for protecting the driver in a frontal collision, and four out of five stars for the front-seat passenger. In side-impact testing, the government awarded the Lancer five out of five stars for protecting front-seat passengers, and four out of five for rear-seat passengers. However, the federal government did issue a "safety concern," noting the Lancer's rear door came unlatched and swung open during side-impact tests. Lastly, the Lancer received a four out of five star rollover rating.

The Insurance Institute for Highway Safety (IIHS) awarded the 2008 Lancer the highest rating of "Good" in frontal impact testing. The IIHS has not yet performed a side impact test on the Lancer.
Safety Features include: Seat Mounted Front Side Airbags
Front and Rear Side Head Curtain Airbags
Driver Knee Airbag
Driver Airbag
Passenger Airbag
Front and Rear Crumple Zones
Front and Rear 3-Point Seatbelts
Side Guard Door Beams
Trunk Anti-Trap Device
Passenger Airbag Cutoff Sensor Activated By Weight
Automatic Locking Retractors
Front Seatbelt Height Adjusters
Rear 3-Point Center Seatbelt
Front Seatbelt Pretensioners