The GLC’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Tiguan doesn’t offer pre-crash pretensioners.
The GLC has standard NECK-PRO front head restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the NECK-PRO front head restraints system moves the headrests forward to prevent neck and spine injuries. The Tiguan doesn’t offer a whiplash protection system.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The GLC offers optional Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The Tiguan doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.
The GLC’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Tiguan doesn’t offer a driver alert monitor.
Both the GLC and the Tiguan have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, front seat center airbag, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive, lane departure warning systems and around view monitors.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the GLC is much safer than the Tiguan:
|
|
GLC |
Tiguan |
| Overall Evaluation |
GOOD |
POOR |
| Structure |
GOOD |
GOOD |
|
|
Driver Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh/hip Rating |
GOOD |
GOOD |
| Leg/foot Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Head/Neck Rating |
ACCEPTABLE |
ACCEPTABLE |
| Chest Rating |
GOOD |
MARGINAL |
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
ACCEPTABLE |
POOR |
The Mercedes GLC has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and an “Acceptable” to “Good” score in the revised pedestrian crash prevention test. The Tiguan is not even a standard “Top Safety Pick” for 2025.

